CN107070333B - A kind of switching magnetic-resistance wind-driven generator power inverter and its control method - Google Patents
A kind of switching magnetic-resistance wind-driven generator power inverter and its control method Download PDFInfo
- Publication number
- CN107070333B CN107070333B CN201710139529.5A CN201710139529A CN107070333B CN 107070333 B CN107070333 B CN 107070333B CN 201710139529 A CN201710139529 A CN 201710139529A CN 107070333 B CN107070333 B CN 107070333B
- Authority
- CN
- China
- Prior art keywords
- excitation
- diode
- cathode
- anode
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/38—Self-excitation by current derived from rectification of both output voltage and output current of generator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
- H02P9/305—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices controlling voltage
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
A kind of switching magnetic-resistance wind-driven generator power inverter and its control method, power inverter by power inverter main circuit, excitation power supply, field power supply, enhanced excitation circuit, rapidly switch off and formed with everyday power sources circuit, power inverter main circuit exports and connects excitation power supply, field power supply, rapidly switches off the respective input both ends with everyday power sources circuit, the common input both ends for connecting power inverter main circuit of output of excitation power supply, enhanced excitation circuit, the input both ends of the output connection enhanced excitation circuit of field power supply；Control function is realized by the switch motion of control switch pipe in work；Power inverter main circuit is realized on excitation voltage Extended chemotherapy, enhanced excitation circuit can further promote excitation voltage, excitation power supply has self-charging ability, it rapidly switches off and accelerates to demagnetize with everyday power sources circuit and generate additional power supply, total system realizes intelligence, has application value in middle-size and small-size wind-powered electricity generation field.
Description
Technical field
The present invention relates to wind power generation fields, and in particular to a kind of power inverter of switching magnetic-resistance wind-driven generator and its
Control method.
Background technique
Generated electricity using wind-force is to actively advocate in global range since the 21th century and obtain the cleaning greatly developed
Pollution-free, reproducible energy utilization patterns.
Domestic and international industry in wind-driven generator using upper, with alternative electric generations such as asynchronous generator and magneto alternators
Based on machine, the rare report to application switch reluctance generator fresh for many years, although switch reluctance generator is opposite to have structure
Simple rigid, the advantages that convenient, fault-tolerance is strong, efficiency is also above asynchronous generator of radiating.
In recent years using direct current transmission in direct current transportation and the development of micro-capacitance sensor technology and containing the micro- of wind-powered electricity generation in electric system
Network system is paid close attention to and is developed by industry, further opportunity is brought to the application of switch reluctance generator, because of switching magnetic-resistance
Generator directly issues direct current, at least reduces a rectification link.
In wind-powered electricity generation field, there are the restrictions of minimum wind speed and highest wind velocity, that is to say, that lower than minimum wind speed or is higher than most
Under the wind conditions of high wind speed, power generation out of service；In addition, the electric energy of sending can reduce after lower than base speed；Currently,
How to widen can generator operation wind speed range and low speed when promote generating capacity, be the heat of wind-powered electricity generation area research and development
Point problem.
In addition, wind power plant is often seated the area that remote field, hillside, grassland, island etc. are resided without personnel, to the greatest extent
Measure the development need that few maintenance workload is also the field.
Current few reports that switch reluctance generator is used for wind generator system, then, it is simpler in addition to being suitable for
Can single system structure, obtain in the several hot issues as above paid close attention in application switch reluctance generator wind-power electricity generation
Progress certainly will know together the research for becoming industry.
Summary of the invention
According to above background technique, the invention proposes a kind of energy split poles to promote excitation ability to obtain bigger power generation
Power widens the wind speed width that can be generated electricity, and reduces system maintenance work amount, and the intelligent high-efficiency benefit of effective use electric energy is medium and small
Power switch magnetic resistance wind-driven generator power inverter and its control method.
The technical solution of the present invention is as follows:
A kind of switching magnetic-resistance wind-driven generator power inverter, by power inverter main circuit, excitation power supply, excitation electricity
Source, enhanced excitation circuit rapidly switch off and everyday power sources circuit composition；Wherein, the power inverter main circuit output is positive and negative
Pole both ends connect the excitation power supply, the field power supply, the respective input both ends rapidly switched off with everyday power sources circuit,
The output positive and negative end of excitation power supply, the output positive and negative end of the enhanced excitation circuit connect power inverter master jointly
The input both ends of circuit, the input both ends of the output positive and negative end connection enhanced excitation circuit of field power supply, 5 whole groups
It is shorted at the negative pole end that outputs and inputs of part.
Power inverter main circuit is made of H power conversion branch circuit parallel connection, respectively H phase switch reluctance wind-driven generator
H phase stator winding connection circuit, H is greater than two less than four, and every phase stator winding is divided into four winding strands, and in symmetric set
It is wound in four stator salient poles of the switch reluctance generator of 4H stator pole structural, the power conversion branch of every phase winding is
Every power conversion branch, by the first branch of phase winding, the second branch of phase winding, phase winding third branch, the 4th point of phase winding
Branch, the first field switch pipe, the second field switch pipe, the first Excitation Diode, the second Excitation Diode, two pole of third excitation
Pipe, the 4th Excitation Diode, the first power generation diode, the second power generation diode, third power generation diode, the 4th two poles of power generation
Pipe, the 5th power generation diode composition；Wherein, the first field switch pipe is connect with the first power generation Diode series, the
The cathode of cathode connection the first power generation diode of one field switch pipe, the anode of the first field switch pipe is as power inverter
Main circuit input anode, the anode of the first power generation diode is as power inverter main circuit input cathode, and described second
Field switch pipe is connect with the 5th power generation Diode series, the 5th power generation diode of anode connection of the second field switch pipe
Anode, the cathode of the second field switch pipe is as power inverter main circuit negative pole of output end, the yin of the 5th power generation diode
Pole is as power inverter main circuit output head anode, first Excitation Diode, second Excitation Diode, described
The anode of three Excitation Diodes and the 4th branch one end of the phase winding connect the cathode of the first field switch pipe jointly, the
The cathode of one Excitation Diode connects cathode and the first branch of phase winding one end of the 4th power generation diode, and second encourages
The cathode of magnetic diode connects cathode and the second branch of phase winding one end of the third power generation diode, third excitation two
The cathode of pole pipe connects cathode and phase winding third branch one end of the second power generation diode, the 4th branch of phase winding
Other end connection the second power generation diode anode and the 4th Excitation Diode anode, the first branch of phase winding is another
End, the anode of the 4th power generation diode, the second branch of phase winding other end, the anode of third power generation diode, phase winding third
Branch's other end, the 4th Excitation Diode cathode connect the anode of the second field switch pipe jointly.
The excitation power supply by excitation battery, excitation diode, excitation switching tube, first capacitor device, alteration switch pipe,
First diode, the first inductance, the second capacitor, the second diode composition；Wherein, the excitation battery and the excitation two
Pole pipe series connection, the anode of the anode connection excitation diode of excitation battery, the cathode of excitation diode is as excitation power supply
Output head anode, negative pole of output end of the cathode of excitation battery as excitation power supply, the excitation switching tube and described first
Capacitor series connection, the cathode of excitation switching tube are connect with first capacitor device anode, and first capacitor device cathode is as excitation power supply
Input cathode, input anode of the anode of excitation switching tube as excitation power supply, the alteration switch pipe and described first
Diode series, the cathode of alteration switch pipe and the cathode of first diode connect, and the anode connection excitation of alteration switch pipe is opened
The cathode of pipe is closed, the anode of first diode connects the cathode of the first capacitor device, one end connection of first inductance the
One diode cathode, the other end of the first inductance connect the anode of second capacitor and the anode of second diode,
The cathode of the cathode connection excitation battery of second capacitor, the anode of the cathode connection excitation battery of the second diode.
The field power supply is made of excitation capacitor and third diode, wherein the excitation capacitor anode connects institute
The cathode of third diode, input anode of the anode of third diode as field power supply are stated, the cathode of third diode is
For the anode of excitation capacitor as field power supply output head anode, excitation capacitor cathode is that the input and output of field power supply are negative
Pole.
The enhanced excitation circuit is opened by first switch tube, second switch, third switching tube, the 4th switching tube, the 5th
Guan Guan, the second inductance, third capacitor, the 4th capacitor, the 4th diode, the 5th diode, third inductance, the six or two pole
Pipe, the 5th capacitor composition；Wherein, output end of the cathode and anode of the first switch tube respectively as enhanced excitation circuit
Anode and input anode, the second switch and the 4th switching tube are connected in series, the third switching tube with it is described
5th switching tube is connected in series, and the cathode of second switch is shorted with the cathode of third switching tube as the defeated of enhanced excitation circuit
Enter end and negative pole of output end, the 4th switch tube cathode of second switch tube anode connection, third switchs the 5th switch of tube anode connection
Tube cathode, the 4th switch tube anode connection second inductance one end simultaneously connect the 4th diode anode, and the second inductance is another
One end connects first switch tube anode, the 5th switch tube anode of the 4th diode cathode connection and third capacitor one end,
The 4th switch tube cathode of third capacitor other end connection, described 4th capacitor one end and the 5th diode cathode and institute
The connection of third inductance one end, the 4th switch tube anode of the 5th diode anode connection are stated, the 4th capacitor other end connects third
Tube anode is switched, the third inductance other end connects the 6th diode anode, and the 6th diode cathode connects first switch tube
Cathode and the 5th capacitor anode, the 5th capacitor anode are also enhanced excitation circuit output end cathode.
It is described to rapidly switch off with everyday power sources circuit by quick closing valve switching tube, the 7th diode, bus capacitor, additional capacitor
Device returns and fills switching tube, daily battery composition；Wherein, the quick closing valve switch tube anode connection power inverter main circuit output
Rectify pole and the 7th diode anode, it is positive and described additional that quick closing valve switchs the tube cathode connection bus capacitor
Capacitor anode and as rapidly switching off and the i.e. entire switching magnetic-resistance wind-driven generator of everyday power sources circuit output first end anode
Power inverter electric energy output end anode, the 7th diode cathode connection building-out condenser anode and described return fill switching tube sun
Pole is returned and fills the switch tube cathode connection daily battery positive voltage, and daily battery terminal negative connects building-out condenser cathode, daily
Make as the output second end positive and negative anodes rapidly switched off with everyday power sources circuit, bus capacitor cathode at accumulator anode and cathode both ends
For rapidly switch off with the input cathode of everyday power sources circuit and output first end cathode, while be also entire switching magnetic-resistance wind-force
Generator power converter electric energy output end cathode, the output second end of daily battery, need to be by isolation before user power utilization
Transform part.
The control method of switching magnetic-resistance wind-driven generator power inverter of the invention are as follows:
According to the rotor relative position signal that detection obtains, pre- energization phase winding is somebody's turn to do by corresponding in power inverter main circuit
The power conversion branch of phase runs control, controls the first field switch pipe and the closure conducting of the second field switch pipe first, if
Generator belongs to starting stage at the early-stage at this time, then supplies from excitation power supply to the four of the phase winding branch's windings are isobaric simultaneously
Electrical excitation, path be through the first field switch pipe, four phase winding branch branches in parallel (series connection of the first Excitation Diode mutually around
The branch of the first branch of group, the branch of the second Excitation Diode series connection the second branch of phase winding, third Excitation Diode series connection phase
The branch of winding third branch, the 4th branch of phase winding connect the 4th Excitation Diode branch), the second field switch pipe, root
According to rotor-position, at the end of reaching the excitation stage, the first field switch pipe and the second field switch pipe are turned off, is entered at this time continuous
Flow power generating stage, four branch's windings storage energy afterflow is generated electricity, electric current flow through path be first power generation diode, mutually around
The 4th branch of group, the second power generation diode, phase winding third branch, third power generation diode, the second branch of phase winding, the 4th hair
Electric diode, the first branch of phase winding, the 5th power generation diode, continue according to rotor-position, three-phase windings after generator starting
Power conversion branch take turns to operate, power inverter main circuit through rapidly switched off with everyday power sources circuit to outside transmission of electricity it is same
When, the also excitation capacitor charging into field power supply, when excitation voltage value, that is, excitation capacitor both ends of field power supply output
When voltage value is increased above the output voltage of excitation battery, due to the effect of excitation diode, excitation power supply will stop to
Power inverter main circuit for electrical excitation, change from field power supply via enhanced excitation circuit to power inverter main circuit it is each around
Group is for electrical excitation, and first switch tube is closed at this time, when the bigger excitation voltage of needs is to improve exciting current and then enhance power generation energy
When power, the first switch tube in enhanced excitation circuit is turned off, what enhanced excitation circuit exported field power supply by inner transformation
Excitation voltage is used as after voltage transformation；
Excitation power supply by excitation battery via excitation diode the generator starting stage provide excitation voltage when, rise
When encouraging the bottom line of the output voltage meet demand of battery or more, excitation switching tube is off state, when having detected
When encouraging the both end voltage of battery lower than bottom line, excitation switching tube closure, until excitation battery rises after being fully charged
Switching tube is encouraged to disconnect again, during this period, first capacitor device, alteration switch pipe, first diode, the first inductance, the second capacitor,
The translation circuit of second diode composition completes the charging work to excitation battery, and the switch by adjusting alteration switch pipe accounts for
Sky ratio is so that charging keeps stablizing as far as possible；
When five switching tube all disconnections of the excitation power supply during work provides excitation voltage, in enhanced excitation circuit
State；
When the excitation voltage that generator starting is completed and field power supply provides is greater than the excitation voltage that excitation power supply provides
When, first switch tube is closed, other switching tubes are held off without exception in enhanced excitation circuit, and field power supply, which is devoted oneself to work, to be mentioned
For excitation voltage；
When the excitation voltage of field power supply output is not able to satisfy the excitation voltage in generator phase winding excitation stage, Yi Jigen
It needs to further increase excitation voltage according to wind power system loading demand and is obtained with obtaining bigger initial afterflow generation current
When bigger output power, the first switch tube in enhanced excitation circuit is disconnected, and enhanced excitation circuit starts to carry out excitation electricity
The excitation voltage of source output strengthens the work promoted, specific control process are as follows: second switch and third switching tube closure, the 4th
Switching tube and the 5th switching tube disconnect, and the electric current from field power supply is divided into the 4th diode, third capacitor after the second inductance
Device, second switch composition branch and the 5th diode, the 4th capacitor, third switching tube composition branch, at this time for
Charge mode；Next enter discharge mode, second switch and third switching tube disconnect at this time, and the 4th switching tube and the 5th
Switching tube closure, thus, the path of electric current becomes the second inductance, the 4th switching tube, third capacitor, the 5th switching tube, the 4th
Capacitor, third inductance, the 6th diode, second switch and third switching tube, with the 4th switching tube and the 5th switching tube two
Switching time between group, according to the 5th capacitor voltage at both ends under charging voltage when charge mode and discharge mode whether
Reach upper and lower limit definite value to act；
Rapidly switch off with everyday power sources circuit does not have winding to need quickly to reduce power generation electricity in power inverter main circuit
Its internal quick closing valve switching tube is closed state when stream, when the generation current for needing afterflow power generating stage according to rotor-position judgement
When quickly reducing, quick closing valve switching tube is disconnected, generation current charges to building-out condenser, the afterflow of power inverter main circuit at this time
The backward voltage born on power generation circuit is the sum of bus capacitor and building-out condenser both end voltage, so that afterflow power generating stage
Generation current be quickly reduced to zero；When detecting that building-out condenser both end voltage is more than limit value, closure, which is returned, fills switching tube,
Extra electric energy is charged to daily battery, when detecting building-out condenser both end voltage lower than lower limit value, disconnection, which is returned, fills out
Guan Guan, the power output in daily battery is as daily electricity consumption power supply.
Technical effect of the invention mainly has:
Firstly, switch reluctance generator is used for wind-power electricity generation, itself has the efficiency higher than asynchronous wind driven generator, have low
In the cost of exchange wind-driven generator especially permanent magnet synchronous wind generator.
Compared to traditional power inverter main circuit structure, such as asymmetrical half-bridge type, power inverter proposed by the present invention
Main circuit and its control method realize four times of excitation voltage of promotion, and enhanced excitation circuit puts into operation again from excitation electricity
Excitation stage of the excitation voltage value of 3 times of promotion to winding in terms of source；Mathematical model and operation according to switch reluctance generator
Principle, shortening excitation phases-time, increasing afterflow power generating stage electric current is the essential key for itself improving power output capacity,
So, if reaching desirable value in exciting current shorter time, then excitation phases-time is shortened as broader afterflow power generation
Section and then hoisting power fan-out capability one of create condition, when the acquisition of bigger exciting current can certainly will also obtain it is bigger
Afterflow power generating stage electric current so that hoisting power fan-out capability create condition two, and improve excitation voltage be improve encourage
The effective means of magnetoelectricity stream, the present invention is compared to the excitation voltage overflow that can obtain 12 times；
In addition, under the cooperation of blower fan system speed change gear, more times as described above can be passed through when very low velocity operating condition
The excitation voltage of increasing promotes exciting current, increases the output of generation current, and field power supply can also obtain more feedback powers,
So that system can more maintain positive generator operation state relatively and be unlikely to be forced to shut down, power generation width has been widened.
To the circuit device of excitation battery charging in excitation power supply of the present invention, reduce maintenance workload, for example excitation
Battery electric energy exhausts, and under conventional structure, requires manual replacement battery or manually operates to charge the battery, this hair
It is bright then to realize intelligence in this regard.
The design with everyday power sources circuit is rapidly switched off, there are two effects, at the end of one is to speed up afterflow power generating stage
Switch off current decline process, by disconnect quick closing valve switching tube realize building-out condenser on opposite phase winding backward voltage it is attached
Add up realization, avoiding electric current from entering electronic operating condition area reduces generating efficiency, while also for delay afterflow power generation as far as possible at the time of
It obtains bigger power generation section and improves generating efficiency service；
The second is electric energy extra on building-out condenser can be efficiently used, by returning, to fill after switching tube closure be daily electric power storage
The electric energy of pond charging, the battery can need for the daily electricity consumption of the controller power supply of wind power system or neighbouring illumination etc.
And service, to efficiently use electric energy.
It is also found that from total of the present invention unlike Conventional switched reluctance generator power transformation system, the present invention
Structure in completely without outer power supply source, reach self-sufficiency.
Detailed description of the invention
Fig. 1 show switching magnetic-resistance wind-driven generator power converter circuit structure chart of the invention.
Fig. 2 show the switch reluctance generator winding inductance in the present invention and changes linear waveform figure with rotor-position.
In Fig. 1: 1, power inverter main circuit, 2, excitation power supply, 3, field power supply, 4, enhanced excitation circuit, 5, quickly
Shutdown and everyday power sources circuit.
Specific embodiment
As shown in Fig. 1, the switching magnetic-resistance wind-driven generator power inverter of the present embodiment, by power inverter main circuit
1, excitation power supply 2, field power supply 3, enhanced excitation circuit 4, rapidly switch off and everyday power sources circuit 5 form；Power inverter master
Circuit 1 exports positive and negative end connection excitation power supply 2, field power supply 3, rapidly switches off respective input with everyday power sources circuit 5
Both ends, the output positive and negative end of excitation power supply 2, the output positive and negative end of enhanced excitation circuit 4 connect power conversion jointly
The input both ends of device main circuit 1, the input both ends of the output positive and negative end connection enhanced excitation circuit 4 of field power supply 3, all
The negative pole ends that outputs and inputs of 5 component parts be shorted.
The switching magnetic-resistance wind-driven generator of the present embodiment is conventional structure type switch reluctance generator, is three-phase in structure
12/8 pole structure, power inverter main circuit 1 are made of three power conversion branch circuit parallel connections, respectively threephase switch magnetic resistance wind-force
The connection circuit of the threephase stator winding of generator, every phase stator winding is divided into four winding strands, and is wound in symmetric set
In four stator salient poles of switch reluctance generator, power conversion branch, that is, every power conversion branch of every phase winding, by phase
The first branch of winding (M1, N1, O1), the second branch of phase winding (M2, N2, O2), phase winding third branch (M3, N3, O3), mutually around
The 4th branch (M4, N4, O4) of group, the first field switch pipe (V1, V3, V5), the second field switch pipe (V2, V4, V6), first are encouraged
Magnetic diode (D1, D10, D19), the second Excitation Diode (D2, D11, D20), third Excitation Diode (D3, D12, D21),
Four Excitation Diodes (D4, D13, D22), first power generation diode (D5, D14, D23), second power generation diode (D6, D15,
D24), third power generation diode (D7, D16, D25), the 4th power generation diode (D8, D17, D26), the 5th power generation diode (D9,
D18, D27) composition；First field switch pipe (V1, V3, V5) is connected in series with the first power generation diode (D5, D14, D23),
In the first field switch pipe (V1, V3, V5) cathode connection first power generation diode (D5, D14, D23) cathode, the first excitation
The anode of switching tube (V1, V3, V5) as 1 input anode of power inverter main circuit, the first power generation diode (D5, D14,
D23 anode) is as 1 input cathode of power inverter main circuit, the second field switch pipe (V2, V4, V6) and the 5th power generation
Diode (D9, D18, D27) is connected in series, wherein the 5th two poles of power generation of anode connection of the second field switch pipe (V2, V4, V6)
The anode of (D9, D18, D27) is managed, the cathode of the second field switch pipe (V2, V4, V6) is exported as power inverter main circuit 1
Cathode is held, the cathode of the 5th power generation diode (D9, D18, D27) is encouraged as 1 output head anode of power inverter main circuit, first
Magnetic diode (D1, D10, D19), the second Excitation Diode (D2, D11, D20), third Excitation Diode (D3, D12, D21)
Anode and the one end phase winding the 4th branch (M4, N4, O4) connect the cathode of the first field switch pipe (V1, V3, V5) jointly,
The cathode and phase winding of the 4th power generation diode (D8, D17, D26) of cathode connection of first Excitation Diode (D1, D10, D19)
The one end first branch (M1, N1, O1), the second Excitation Diode (D2, D11, D20) cathode connection third power generation diode (D7,
D16, D25) cathode and the one end the second branch of phase winding (M2, N2, O2), the cathode of third Excitation Diode (D3, D12, D21)
The cathode of the second power generation diode (D6, D15, D24) of connection and the one end phase winding third branch (M3, N3, O3), phase winding the 4th
The anode and the 4th Excitation Diode of the second power generation diode (D6, D15, D24) of other end connection of branch (M4, N4, O4)
The anode of (D4, D13, D22), the first branch of phase winding (M1, N1, O1) other end, the 4th power generation diode (D8, D17, D26)
Anode, the second branch of phase winding (M2, N2, O2) other end, third power generation diode (D7, D16, D25) anode, phase winding
Third branch (M3, N3, O3) other end, the 4th Excitation Diode (D4, D13, D22) cathode connect the second field switch jointly
Manage the anode of (V2, V4, V6).
Excitation power supply 2 is by excitation battery X1, excitation diode D28, excitation switching tube V7, first capacitor device C1, transformation
Switching tube V8, first diode D29, the first inductance L1, the second capacitor C2, the second diode D30 composition；Excitation battery X1
It connects with excitation diode D28, the anode of the anode connection excitation diode D28 of excitation battery X1, excitation diode D28's
Output head anode of the cathode as excitation power supply 2, negative pole of output end of the cathode of excitation battery X1 as excitation power supply 2 rise
It encourages switching tube V7 to connect with first capacitor device C1, the cathode of excitation switching tube V7 is connect with first capacitor device C1 anode, the first electricity
The anode of input cathode of the container C1 cathode as excitation power supply 2, excitation switching tube V7 is rectified as the input of excitation power supply 2
Pole, alteration switch pipe V8 connect with first diode D29, and the cathode of alteration switch pipe V8 and the cathode of first diode D29 connect
It connects, the cathode of the anode connection excitation switching tube V7 of alteration switch pipe V8, the anode of first diode D29 connects first capacitor device
The cathode of C1, one end of the first inductance L1 connect first diode D29 cathode, and the other end of the first inductance L1 connects the second capacitor
The anode of device C2 and the anode of the second diode D30, the cathode of the cathode connection excitation battery X1 of the second capacitor C2, second
The anode of the cathode connection excitation battery X1 of diode D30.
Field power supply 3 is made of excitation capacitor C3 and third diode D31, wherein excitation capacitor C3 anode connection the
The cathode of three diode D31, input anode of the anode of third diode D31 as field power supply 3, third diode D31's
Cathode, that is, excitation capacitor C3 anode is field power supply 3 as 3 output head anode of field power supply, excitation capacitor C3 cathode
Input and output cathode.
Enhanced excitation circuit 4 is by first switch tube V9, second switch V10, third switching tube V11, the 4th switching tube
V12, the 5th switching tube V13, the second inductance L2, third capacitor C4, the 4th capacitor C5, the 4th diode D32, the five or two pole
Pipe D33, third inductance L3, the 6th diode D34, the 5th capacitor C6 composition；The cathode and anode of first switch tube V9 is distinguished
As the output head anode and input anode of enhanced excitation circuit 4, second switch V10 connects company with the 4th switching tube V12
It connects, third switching tube V11 and the 5th switching tube V13 are connected in series, and the cathode of second switch V10 is with third switching tube V11's
Cathode is shorted input terminal and negative pole of output end as enhanced excitation circuit 4, and second switch V10 anode connects the 4th switching tube
V12 cathode, third switching tube V11 anode connect the 5th switching tube V13 cathode, and the 4th switching tube V12 anode connects the second inductance
The one end L2 simultaneously connects the 4th diode D32 anode, and the second inductance L2 other end connects first switch tube V9 anode, the 4th diode
D32 cathode connects the 5th switching tube V13 anode and the one end third capacitor C4, the 4th switch of third capacitor C4 other end connection
Pipe V12 cathode, the 4th one end capacitor C5 are connect with the 5th diode D33 cathode and the one end third inductance L3, the 5th diode
D33 anode connects the 4th switching tube V12 anode, and the 4th capacitor C5 other end connects third switching tube V11 anode, third inductance
The L3 other end connects the 6th diode D34 anode, and the 6th diode D34 cathode connects first switch tube V9 cathode and the 5th capacitor
Device C6 anode, the 5th capacitor C6 cathode is also 4 negative pole of output end of enhanced excitation circuit.
It rapidly switches off with everyday power sources circuit 5 by quick closing valve switching tube V14, the 7th diode D35, bus capacitor C7, attached
Power-up container C8, it returns and fills switching tube V15, daily battery X2 composition；Quick closing valve switching tube V14 anode connects the main electricity of power inverter
1 output head anode of road and the 7th diode D35 anode, quick closing valve switching tube V14 cathode connect bus capacitor C7 anode and
Building-out condenser C8 cathode simultaneously exports the i.e. entire switching magnetic-resistance wind-force of first end anode with everyday power sources circuit 5 as rapidly switching off
Generator power converter electric energy output end anode, the 7th diode D35 cathode, which connects building-out condenser C8 anode and returns, to be filled out
Pipe V15 anode is closed, returns and fills the daily battery X2 anode of switching tube V15 cathode connection, daily battery X2 cathode connects additional electrical
Container C8 cathode, daily battery X2 positive and negative end are positive and negative with the output second end of everyday power sources circuit 5 as rapidly switching off
Pole, bus capacitor C7 cathode as rapidly switch off with the input cathode of everyday power sources circuit 5 and output first end cathode, together
When be also entire switching magnetic-resistance wind-driven generator power inverter electric energy output end cathode；The output second end of daily battery X2
Before user power utilization, isolated variable link need to be passed through.
The above are the structures of the embodiment of the present invention.
The control method and working principle of the present embodiment structure are illustrated below.
The structure of the embodiment of the present invention, i.e. structure shown in attached drawing 1, for the switch reluctance generator under wind-power electricity generation operating condition
Electric energy production and output.
According to switch reluctance generator working principle, only winding, that is, stator winding, at work, according to detecting
The rotor relative position signal arrived, to determine, certain phase winding need to devote oneself to work in its three-phase windings, remaining two phase winding is not at this time
I.e. excitation energization does not produce electricl energy yet for work, and the phase winding devoted oneself to work is divided into excitation and afterflow power generation at work and successively
Two continuous stages, excitation stage are that phase winding absorbs electric energy i.e. by external field power supply powering phase, afterflow power generating stage
Power output i.e. switch reluctance generator power generation output stage, phase winding afterflow power generation are converted by the magnetic energy of storage for phase winding
Under conditions of the electric energy that stage issues has to be larger than the electric energy of excitation stage absorption, switch reluctance generator just has work meaning.
In view of wind speed is unstable, variation, so under switching magnetic-resistance wind-driven generator power converter construction
Control it is complex, be in view of maximum power and high wind speed, low wind speeds power generation are exported under different wind speed features as far as possible
The normal power output of machine is the ability worked normally, and control method is most important.
When wind speed height, when generator speed is also larger, power generation output power is higher, when wind speed is low, generator speed also compared with
When low, power generation output power is lower, it may be considered that increases excitation and promotes winding current and then improve power output capacity, works as wind speed
When variation, when for example wind speed is lower from height, in order to strive for maintaining biggish generating capacity as far as possible, it is also desirable to excitation voltage is promoted,
Etc., under the frequent variation of wind speed, for common variable-speed wind-power system, wind energy conversion system drawing generator also can in a certain range
Variation, as far as possible enhancing generating capacity, and can have under very low velocity power output ability etc. is that wind-powered electricity generation field will consider naturally
On Technological Progress.
After detecting rotor with salient pole relative stator salient pole position, pre- energization phase winding is by power inverter main circuit 1
The power conversion branch of the corresponding phase runs control, is that the first field switch pipe (V1, V3, V5) of control and the second excitation are opened first
Pipe (V2, V4, V6) closure conducting is closed, if generator belongs to starting stage at the early-stage at this time, from excitation power supply 2 to the phase
For equipressure for electrical excitation, path is through the first field switch pipe (V1, V3, V5), in parallel four to four branch's windings of winding simultaneously
A phase winding branch branch (branch of the first Excitation Diode (D1, D10, D19) series connection the first branch of phase winding (M1, N1, O1)
Road, the branch of the second Excitation Diode (D2, D11, D20) series connection the second branch of phase winding (M2, N2, O2), two pole of third excitation
Manage the branch of (D3, D12, D21) series connection phase winding third branch (M3, N3, O3), the series connection of the 4th branch (M4, N4, O4) of phase winding
The branch of 4th Excitation Diode (D4, D13, D22)), the second field switch pipe (V2, V4, V6) reaches according to rotor-position
At the end of the excitation stage, the first field switch pipe (V1, V3, V5) and the second field switch pipe (V2, V4, V6) are turned off, at this time
Into afterflow power generating stage, the energy of four branch's windings storage generates electricity afterflow, and it is the first two poles of power generation that electric current, which flows through path,
Manage (D5, D14, D23), the 4th branch (M4, N4, O4) of phase winding, second power generation diode (D6, D15, D24), phase winding third
Branch (M3, N3, O3), third power generation diode (D7, D16, D25), the second branch of phase winding (M2, N2, O2), the 4th power generation two
Pole pipe (D8, D17, D26), the first branch of phase winding (M1, N1, O1), the 5th power generation diode (D9, D18, D27), generator rise
Continue after dynamic according to rotor-position, the power conversion branch of three-phase windings takes turns to operate, and power inverter main circuit 1 is quickly closed
While disconnected and everyday power sources circuit 5 is transmitted electricity to outside, the also excitation capacitor C3 charging into field power supply 3, when excitation electricity
Excitation voltage value, that is, excitation capacitor C3 both end voltage value that source 3 exports is increased above the output voltage of excitation battery X1
When, due to the effect of excitation diode D28, excitation power supply 2 will stop changing for electrical excitation by encouraging to power inverter main circuit 1
Via enhanced excitation circuit 4 to each winding power excitation of power inverter main circuit 1, first switch tube V9 is to close in magnetoelectricity source 3
Conjunction state, when needing bigger excitation voltage to improve exciting current and then enhance generating capacity, in enhanced excitation circuit 4 the
One switching tube V9 shutdown, enhanced excitation circuit 4 are increased by the supply voltage that inner transformation exports field power supply 3 as excitation
Voltage.
Rapidly switch off with everyday power sources circuit 5 does not have winding to need quickly to reduce power generation in power inverter main circuit 1
Its internal quick closing valve switching tube V14 is closed state when electric current, when the power generation electricity for needing afterflow power generating stage according to rotor-position
When stream quickly reduces, quick closing valve switching tube V14 is disconnected, generation current charges to building-out condenser C8, at this time the main electricity of power inverter
Road 1 afterflow power generation branch road bear backward voltage (Opposed Current direction) be bus capacitor C7 and building-out condenser C8 it
With so that the generation current of afterflow power generating stage faster be made to be quickly reduced to zero.
According to switch reluctance generator basic theories, bigger excitation voltage just has bigger exciting current, especially excitation
Exciting current at the end of stage is equal to the initial current of afterflow power generating stage, which is directly related to output electricity
The size of power；The structure of the power inverter main circuit 1 of the embodiment of the present invention, so that at the excitation stage, field power supply electricity
Pressure can be applied directly on four branch's windings of every phase winding (do not consider tube voltage drop in the case of), rather than every phase under traditional approach
Excitation voltage is connected after each branch's windings in series of winding (is equivalent to each branch's winding only has excitation power supply voltage of the present invention four
/ mono-), and when afterflow power generating stage, the energy storage of each branch's winding is superimposed output.
Excitation power supply 2 is worked via excitation diode D28 at the generator starting stage by excitation battery X1, is provided and is encouraged
Magnetoelectricity pressure, when more than the bottom line of the output voltage meet demand of excitation battery X1, excitation switching tube V7 is off
State, when detecting the both end voltage of excitation battery X1 lower than bottom line, excitation switching tube V7 closure, until excitation stores
Excitation switching tube V7 is disconnected again after battery X1 is fully charged, during this period, first capacitor device C1, alteration switch pipe V8, first
The translation circuit completion of diode D29, the first inductance L1, the second capacitor C2, the second diode D30 composition are to excitation battery
The charging work of X1, specific work process are as follows: first capacitor device C1 filters the electric energy exported from power inverter main circuit 1
Wave and voltage support work, during operation, when alteration switch pipe V8, which is closed, to be connected, the first inductance L1 and the second capacitor
C2 is electrically charged, and then when alteration switch pipe V8 is disconnected, will have electric current after the first inductance L1 by first diode D29 at this time
Afterflow obtains the second capacitor C2 both end voltage met the requirements by controlling the duty cycle of switching of alteration switch pipe V8, and second
Capacitor C2 charges via the second diode D30 to excitation battery X1 as power supply, during this period when alteration switch pipe V8 is disconnected
When opening, declines for the voltage of charging, when alteration switch pipe V8 is closed, rise again for the voltage of charging, adjust alteration switch pipe
For the duty cycle of switching of V8 but also charging keeps stablizing as far as possible, the second capacitor C2 primarily serves the effect of burning voltage fluctuation,
That is filter action, the main charging circuit for preventing the electric energy of excitation battery X1 from reversely flowing into it of the effect of the second diode D30
Electric energy is wasted in element.
The electric energy of field power supply 3 itself is the electric energy exported that generates electricity, third diode from power inverter main circuit 1
The effect of D31 is to ensure that electric energy one-way flow, when excitation voltage, that is, excitation that generator starting is completed and field power supply 3 provides
When capacitor C3 both end voltage is greater than excitation voltage, that is, excitation battery X1 both end voltage that excitation power supply 2 provides, first switch
Pipe V9 closed state, the same off state of other switching tubes in enhanced excitation circuit 4, field power supply 3, which is devoted oneself to work, provides excitation
Voltage.
When excitation voltage, that is, excitation capacitor C3 both end voltage that field power supply 3 exports is able to satisfy generator phase winding excitation
The excitation voltage in stage, or when without further increasing excitation voltage to obtain bigger initial afterflow generation current, reinforcing is encouraged
First switch tube V9 in magnetic circuit 4 is closed state, at this time second switch V10, third switching tube V11, the 4th switching tube
V12, the 5th switching tube V13 are off-state, in addition, when excitation power supply 2 is during work provides excitation voltage, enhanced excitation electricity
Five all off-states of switching tube in road 4；
When first switch tube V9 is closed, the excitation voltage that field power supply 3 provides is insufficient for demand, needs further to mention
When high excitation voltage, be lower than the excitation voltage situation that excitation power supply 2 provides including the excitation voltage that field power supply 3 provides, then the
One switching tube V9 is disconnected, and enhanced excitation circuit 4 starts the excitation voltage export field power supply 3 and strengthens the work promoted,
Basic principle is realized according to the mechanism that resonance occurs for capacitor and inductance, detailed process under the on-off action of switching tube are as follows: the
Two switching tube V10 and third switching tube V11 closure, the 4th switching tube V12 and the 5th switching tube V13 are disconnected, and come from field power supply 3
Electric current after the second inductance L2, be divided into the 4th diode D32, third capacitor C4, second switch V10 composition branch,
And the branch of the 5th diode D33, the 4th capacitor C5, third switching tube V11 composition, it is at this time charge mode, stable state, the
Two inductance L2, third capacitor C4, the 4th capacitor C5 are charged by resonance mechanism；Next enter discharge mode, at this time the
Two switching tube V10 and third switching tube V11 are disconnected, and the 4th switching tube V12 and the 5th switching tube V13 closure, thus, electric current
Path becomes the second inductance L2, the 4th switching tube V12, third capacitor C4, the 5th switching tube V13, the 4th capacitor C5, third
Inductance L3, the 6th diode D34, the 5th capacitor C6 play energy storage and filter action, it is important that visible output end at this time
Voltage (the 5th capacitor C6 both end voltage) is 3 times of input terminal voltage, that is to say, that passes through above transformation work, strengthens
The excitation voltage that former field power supply 3 exports can be increased to 3 times by excitation circuit 4；Second switch V10 and third switching tube V11,
With the switching time between two groups of the 4th switching tube V12 and the 5th switching tube V13, (reached according to charging voltage when charge mode
After element highest limit value) and discharge mode under the 5th capacitor C6 both end voltage (lower than after limit value) act.
Rapidly switching off quickly terminates and using complementary energy with the completion afterflow power generating stage of everyday power sources circuit 5 for daily electricity consumption
Effect；
Firstly, in conjunction with switch reluctance generator generating operation mode under voltage equation:
In formula (1), e is phase induced electromotive force, and Ψ is magnetic linkage, and ω is angular speed,For transformer electromotive force；
For Based Motional Electromotive Force.
The transient electromagnetic torque formula of switched reluctance machines are as follows:
The linear model changed with rotor-position in conjunction with attached switch reluctance generator inductance shown in Fig. 2 is as it can be seen that in θ2
~θ3Section inductance forward direction rises variation, and electric current will generate positive torque in winding at this time, and motor is as switched reluctance motor
State operation, in θ1~θ2And θ3~θ4When section, inductance size is constant, Based Motional Electromotive Force zero, at this time in order to which maintenance voltage is flat
Weighing apparatus, electric current will appear increase tendency, electromagnetic torque zero, so the motor being typically designed, very short in inductance parallel zone, and
θ4~θ5Section meets the power generation conditions of the generation opposing torque of switch reluctance generator at this time, so, it is sent out as switching magnetic-resistance
Motor, θ4~θ5Section is that its generator operation section is preferable, in rotor salient pole center line overlapping positions to θ4Advance into excitation
In the stage, afterflow power generating stage generation current is in θ5It controls and must be overlapped in stator salient poles center line with rotor recesses center line
Terminate before, otherwise will enter motor-operated running state, extreme influence power benefit and efficiency；However, to ensure that afterflow power generation is flat
Equal electric current is larger in favor of the raising of power output ability, and the embodiment of the present invention just considers before entering motor-operated running state, as far as possible
Make generation current drop to zero rapidly in the short time, is rapidly switched off and everyday power sources circuit 5 to devise.
Generator excitation stage or afterflow power generating stage etc. do not need reduce afterflow generation current during, rapidly switch off with
Quick closing valve switching tube V14 in everyday power sources circuit 5 is constantly in closed state, thus the electricity that power inverter main circuit 1 exports
Can be other than the excitation battery X1 of supplement field power supply 3 and excitation power supply 2 charging, all approach rapidly switch off and everyday power sources
The quick closing valve switching tube V14 of circuit 5 is exported to be used to load or direct electric current net；When detection rotor-position, afterflow power generating stage is
By at the end of, quick closing valve switching tube V14 is disconnected, electric current will flow through the 7th diode D35 and charge to building-out condenser C8 at this time, add
Capacitor C8 establishes voltage in both ends, returns that fill switching tube V15 be off-state at this time, thus the visible path (the in afterflow power generation
One power generation diode (D5, D14, D23), the 4th branch (M4, N4, O4) of phase winding, second power generation diode (D6, D15, D24),
Phase winding third branch (M3, N3, O3), third power generation diode (D7, D16, D25), the second branch of phase winding (M2, N2, O2),
4th power generation diode (D8, D17, D26), the first branch of phase winding (M1, N1, O1), the 5th power generation diode (D9, D18,
D27)) generating voltage of outlet side becomes the sum of bus capacitor C7 both end voltage and building-out condenser C8 both end voltage, does not examine
Each diode tube pressuring drop in afterflow power generation path is considered, then the backward voltage that phase winding is born at this time is output end two electricity
The sum of container end voltage superposition, thus for compared to only bus capacitor C7 both end voltage, bigger backward voltage natural energy
Accelerate the decline of electric current in winding；Zero is dropped to electric current and is closed quick closing valve switching tube V14 immediately, in the operation course of work, only
When detecting that building-out condenser C8 both end voltage is more than limit value, closure is returned and fills switching tube V15, by extra electric energy to daily storage
Battery X2 charging, when detecting building-out condenser C8 both end voltage lower than lower limit value, disconnection, which is returned, fills switching tube V15, daily storage
Power output in battery X2 is as daily electricity consumption power supply, such as the power source of control device in the wind power system equipment, and
The electricity consumptions such as normal lighting source, in addition the output end of daily battery X2 be separately connected to isolated form DC/DC converter or other
Otherwise isolating device will generate compared with test the insulation system of subsequent power device.
Claims (2)
1. a kind of switching magnetic-resistance wind-driven generator power inverter, by power inverter main circuit, excitation power supply, field power supply,
Enhanced excitation circuit rapidly switches off and everyday power sources circuit composition, characterized in that the power inverter main circuit output is positive and negative
Pole both ends connect the excitation power supply, the field power supply, the respective input both ends rapidly switched off with everyday power sources circuit,
The output positive and negative end of excitation power supply, the output positive and negative end of the enhanced excitation circuit connect power inverter master jointly
The input both ends of circuit, the input both ends of the output positive and negative end connection enhanced excitation circuit of field power supply, 5 whole groups
It is shorted at the negative pole end that outputs and inputs of part；
Power inverter main circuit is made of H power conversion branch circuit parallel connection, respectively the H of H phase switch reluctance wind-driven generator
The connection circuit of phase stator winding, H are greater than two less than four, and every phase stator winding is divided into four winding strands, and in symmetric set around
It is formed in four stator salient poles of the switch reluctance generator of 4H stator pole structural, the power conversion branch of every phase winding, that is, every
Power conversion branch, by the first branch of phase winding, the second branch of phase winding, phase winding third branch, the 4th branch of phase winding,
First field switch pipe, the second field switch pipe, the first Excitation Diode, the second Excitation Diode, third Excitation Diode,
Four Excitation Diodes, the first power generation diode, the second power generation diode, third power generation diode, the 4th power generation diode, the 5th
Generate electricity diode composition；Wherein, the first field switch pipe is connect with the first power generation Diode series, and the first excitation is opened
The cathode of cathode connection the first power generation diode of pipe is closed, the anode of the first field switch pipe is defeated as power inverter main circuit
Enter proper pole, the anode of the first power generation diode is as power inverter main circuit input cathode, second field switch
Pipe is connect with the 5th power generation Diode series, the anode of the 5th power generation diode of anode connection of the second field switch pipe,
The cathode of second field switch pipe is as power inverter main circuit negative pole of output end, and the cathode of the 5th power generation diode is as function
Rate inverter main circuit output head anode, first Excitation Diode, second Excitation Diode, the third excitation two
The anode of pole pipe and the 4th branch one end of the phase winding connect the cathode of the first field switch pipe, the first excitation two jointly
The cathode of pole pipe connects cathode and the first branch of phase winding one end of the 4th power generation diode, the second Excitation Diode
Cathode connect cathode and the second branch of phase winding one end of third power generation diode, the yin of third Excitation Diode
Pole connects cathode and phase winding third branch one end of the second power generation diode, the other end of the 4th branch of phase winding
The anode of connection the second power generation diode and the anode of the 4th Excitation Diode, the first branch of phase winding other end, the 4th
The anode of power generation diode, the second branch of phase winding other end, the anode of third power generation diode, phase winding third branch are another
It holds, the cathode of the 4th Excitation Diode connects the anode of the second field switch pipe jointly；
The excitation power supply is by excitation battery, excitation diode, excitation switching tube, first capacitor device, alteration switch pipe, first
Diode, the first inductance, the second capacitor, the second diode composition；Wherein, the excitation battery and the excitation diode
Series connection, the anode of the anode connection excitation diode of excitation battery, output of the cathode of excitation diode as excitation power supply
Rectify pole, negative pole of output end of the cathode of excitation battery as excitation power supply, the excitation switching tube and the first capacitor
Device series connection, the cathode of excitation switching tube are connect with first capacitor device anode, input of the first capacitor device cathode as excitation power supply
Hold cathode, input anode of the anode of excitation switching tube as excitation power supply, the alteration switch pipe and the one or two pole
Pipe series connection, the cathode of alteration switch pipe and the cathode of first diode connect, and the anode of alteration switch pipe connects excitation switching tube
Cathode, the anode of first diode connects the cathode of the first capacitor device, one end connection the one or two of first inductance
Pole pipe cathode, the other end of the first inductance connect second capacitor anode and second diode anode, second
The cathode of the cathode connection excitation battery of capacitor, the anode of the cathode connection excitation battery of the second diode；
The field power supply is made of excitation capacitor and third diode, wherein excitation capacitor anode connection described the
The cathode of three diodes, input anode of the anode of third diode as field power supply, cathode, that is, excitation of third diode
For the anode of capacitor as field power supply output head anode, excitation capacitor cathode is the input and output cathode of field power supply；
The enhanced excitation circuit by first switch tube, second switch, third switching tube, the 4th switching tube, the 5th switching tube,
Second inductance, third capacitor, the 4th capacitor, the 4th diode, the 5th diode, third inductance, the 6th diode, the 5th
Capacitor composition；Wherein, the cathode and anode of the first switch tube respectively as enhanced excitation circuit output head anode and
Input anode, the second switch and the 4th switching tube are connected in series, and the third switching tube is opened with the described 5th
Pipe is closed to be connected in series, the cathode of the cathode of second switch and third switching tube be shorted as enhanced excitation circuit input terminal and
Negative pole of output end, the 4th switch tube cathode of second switch tube anode connection, third switch the 5th switch tube cathode of tube anode connection,
4th switch tube anode connection second inductance one end simultaneously connects the 4th diode anode, the connection of the second inductance other end
First switch tube anode, the 5th switch tube anode of the 4th diode cathode connection and third capacitor one end, third capacitor
The 4th switch tube cathode of device other end connection, described 4th capacitor one end and the 5th diode cathode and third electricity
Feel one end connection, the 4th switch tube anode of the 5th diode anode connection, the 4th capacitor other end connects third switching tube sun
Pole, the third inductance other end connect the 6th diode anode, and the 6th diode cathode connects first switch tube cathode and institute
The 5th capacitor anode is stated, the 5th capacitor anode is also enhanced excitation circuit output end cathode；
It is described rapidly switch off with everyday power sources circuit by quick closing valve switching tube, the 7th diode, bus capacitor, building-out condenser,
It returns and fills switching tube, daily battery composition；Wherein, the quick closing valve switch tube anode connection power inverter main circuit output is rectified
Pole and the 7th diode anode, quick closing valve switch tube cathode and connect the bus capacitor anode and the additional capacitor
Device cathode and as rapidly switching off and the i.e. entire switching magnetic-resistance wind-driven generator power of everyday power sources circuit output first end anode
Converter electric energy output end anode, the 7th diode cathode connection building-out condenser anode and described return are filled switch tube anode, are returned
It fills switch tube cathode and connects the daily battery positive voltage, daily battery terminal negative connects building-out condenser cathode, daily electric power storage
Pond positive and negative end is as the output second end positive and negative anodes rapidly switched off with everyday power sources circuit, and bus capacitor cathode is as fast
The input cathode and output first end cathode of speed shutdown and everyday power sources circuit, while being also entire switching magnetic-resistance wind-power electricity generation
Machine power inverter electric energy output end cathode, the output second end of daily battery need to pass through isolated variable before user power utilization
Link.
2. a kind of control method of switching magnetic-resistance wind-driven generator power inverter according to claim 1, characterized in that
According to the obtained rotor relative position signal of detection, pre- energization phase winding is by corresponding to the power of the phase in power inverter main circuit
Branch operation control is converted, the first field switch pipe and the closure conducting of the second field switch pipe are controlled first, if generated electricity at this time
Machine belongs to starting stage at the early-stage, then isobaric simultaneously for electrical excitation to the four of the phase winding branch's windings from excitation power supply,
Path be through the first field switch pipe, four phase winding branch branches in parallel, the second field switch pipe, four phases therein around
Group of branches branch is respectively: the branch of the first Excitation Diode series connection the first branch of phase winding, the second Excitation Diode series connection phase
The branch of the second branch of winding, the branch of third Excitation Diode series connection phase winding third branch, the series connection of the 4th branch of phase winding
The branch of 4th Excitation Diode at the end of reaching the excitation stage, turns off the first field switch pipe and the according to rotor-position
Two field switch pipes enter afterflow power generating stage at this time, and the energy of four branch's windings storage generates electricity afterflow, and electric current flows through road
Diameter is the first power generation diode, the 4th branch of phase winding, the second power generation diode, phase winding third branch, two poles of third power generation
Pipe, the second branch of phase winding, the 4th power generation diode, the first branch of phase winding, the 5th power generation diode, generator starting are subsequent
Continue according to rotor-position, the power conversion branch of three-phase windings takes turns to operate, and power inverter main circuit is rapidly switched off and day
Normal power circuit is to while the transmission of electricity of outside, and also the excitation capacitor into field power supply charges, when encouraging for field power supply output
When magnetic voltage value, that is, excitation capacitor both end voltage value is increased above the output voltage of excitation battery, due to excitation diode
Effect, excitation power supply will stop changing for electrical excitation by field power supply to power inverter main circuit via enhanced excitation circuit
To each winding power excitation of power inverter main circuit, first switch tube is closed at this time, when the bigger excitation voltage of needs is to mention
When high exciting current and then enhancing generating capacity, the first switch tube in enhanced excitation circuit is turned off, and enhanced excitation circuit passes through
Excitation voltage is used as after the voltage transformation that inner transformation exports field power supply；
Excitation power supply by excitation battery via excitation diode the generator starting stage provide excitation voltage when, excitation store
When more than the bottom line of the output voltage meet demand of battery, excitation switching tube is off state, when detect excitation store
When the both end voltage of battery is lower than bottom line, excitation switching tube closure, until excitation is opened after excitation battery is fully charged
Pipe is closed to disconnect again, during this period, first capacitor device, alteration switch pipe, first diode, the first inductance, the second capacitor, second
The translation circuit of diode composition completes the charging work to excitation battery, by the duty cycle of switching for adjusting alteration switch pipe
So that charging keeps stablizing as far as possible；
When five switching tubes all disconnection shape of the excitation power supply during work provides excitation voltage, in enhanced excitation circuit
State；
When the excitation voltage that generator starting is completed and field power supply provides is greater than the excitation voltage that excitation power supply provides, the
One switching tube closure, other switching tubes are held off without exception in enhanced excitation circuit, and field power supply offer of devoting oneself to work is encouraged
Magnetoelectricity pressure；
When the excitation voltage of field power supply output is not able to satisfy the excitation voltage in generator phase winding excitation stage, and according to wind
It is bigger to obtain to obtain bigger initial afterflow generation current that electric system loading demand needs to further increase excitation voltage
Output power when, the first switch tube in enhanced excitation circuit disconnects, and enhanced excitation circuit starts to carry out field power supply is defeated
Excitation voltage out strengthens the work promoted, specific control process are as follows: second switch and third switching tube closure, the 4th switch
Pipe and the 5th switching tube disconnect, the electric current from, field power supply after the second inductance, be divided into the 4th diode, third capacitor,
The branch and the 5th diode of second switch composition, the 4th capacitor, third switching tube composition branch, at this time to fill
Power mode；Next enter discharge mode, second switch and third switching tube disconnect at this time, and the 4th switching tube and the 5th is opened
Pipe closure is closed, thus, the path of electric current becomes the second inductance, the 4th switching tube, third capacitor, the 5th switching tube, the 4th electricity
Container, third inductance, the 6th diode, second switch and third switching tube, with two groups of the 4th switching tube and the 5th switching tube
Between switching time, whether reached according to the 5th capacitor voltage at both ends under charging voltage when charge mode and discharge mode
It is acted to upper and lower limit definite value；
Rapidly switch off with everyday power sources circuit do not have in power inverter main circuit winding need quickly reduce generation current when
Its internal quick closing valve switching tube is closed state, when needing the generation current of afterflow power generating stage quick according to rotor-position judgement
When reduction, quick closing valve switching tube is disconnected, generation current charges to building-out condenser, at this time the afterflow power generation of power inverter main circuit
The backward voltage born on circuit is the sum of bus capacitor and building-out condenser both end voltage, so that the hair of afterflow power generating stage
Electric current is quickly reduced to zero；When detecting that building-out condenser both end voltage is more than limit value, closure, which is returned, fills switching tube, will be more
Remaining electric energy charges to daily battery, and when detecting building-out condenser both end voltage lower than lower limit value, disconnection, which is returned, fills switching tube,
Power output in daily battery is as daily electricity consumption power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710139529.5A CN107070333B (en) | 2017-03-08 | 2017-03-08 | A kind of switching magnetic-resistance wind-driven generator power inverter and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710139529.5A CN107070333B (en) | 2017-03-08 | 2017-03-08 | A kind of switching magnetic-resistance wind-driven generator power inverter and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107070333A CN107070333A (en) | 2017-08-18 |
| CN107070333B true CN107070333B (en) | 2019-03-26 |
Family
ID=59621927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710139529.5A Expired - Fee Related CN107070333B (en) | 2017-03-08 | 2017-03-08 | A kind of switching magnetic-resistance wind-driven generator power inverter and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107070333B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769648B (en) * | 2017-09-28 | 2020-05-08 | 中国矿业大学 | Topology control method for integrated power converter of switched reluctance wind driven generator |
| CN108054965B (en) * | 2017-12-14 | 2019-09-10 | 中国计量大学 | From enhanced excitation demagnetization Isolation and decoupling Simple switch reluctance generator power inverter |
| CN110224657A (en) * | 2019-05-30 | 2019-09-10 | 华中科技大学 | A kind of three phase full bridge winding multiplexed switches reluctance motor driving system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8975878B2 (en) * | 2010-12-23 | 2015-03-10 | Caterpillar Inc. | Switched reluctance generator integrated controls |
| CN204408232U (en) * | 2014-12-30 | 2015-06-17 | 中国计量学院 | Small-power four phase switch reluctance generator power converter |
| CN104660129B (en) * | 2015-03-19 | 2017-04-26 | 中国计量学院 | Switch reluctance wind driven generator control system and method |
| CN204559455U (en) * | 2015-03-19 | 2015-08-12 | 中国计量学院 | Switching magnetic-resistance wind power generator control system |
| CN105429538B (en) * | 2016-01-04 | 2018-03-27 | 中国计量学院 | A kind of switching magnetic-resistance wind-driven generator power converter system |
| CN205883097U (en) * | 2016-06-24 | 2017-01-11 | 姜坚波 | Encourage switched reluctance generator transformer soon and press power converter |
-
2017
- 2017-03-08 CN CN201710139529.5A patent/CN107070333B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN107070333A (en) | 2017-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108667384B (en) | Self-charging Qiang Lishuan transformation double winding high-gain alternating-current switch reluctance motor converter | |
| CN105429538B (en) | A kind of switching magnetic-resistance wind-driven generator power converter system | |
| CN107070334B (en) | A kind of switch reluctance generator converter topology and its control method | |
| CN108667383B (en) | A kind of switchette reluctance motor converter system | |
| CN104539206B (en) | Marine large-scale straight drive switching magnetic-resistance wind-driven generator power converter system | |
| CN104660129B (en) | Switch reluctance wind driven generator control system and method | |
| CN107171606B (en) | Small-power Multifunctional three-phase switched reluctance motor system and its control method | |
| CN204408234U (en) | Sea is large-scale directly drives switching magnetic-resistance wind-driven generator power inverter and system thereof | |
| CN102709945B (en) | Energy-storage wind power generation system with squirrel-cage generator | |
| CN106451531B (en) | A kind of multiphase electricity generation-unsteady flow integral system and its control method | |
| CN107070333B (en) | A kind of switching magnetic-resistance wind-driven generator power inverter and its control method | |
| CN107046385B (en) | From reinforcing self-charging separate excitation switch reluctance generator current transformer and its control method | |
| CN102222939A (en) | Grid-connected control method and device by utilizing grid-side converter of doubly-fed wind-driven generator set | |
| CN204408232U (en) | Small-power four phase switch reluctance generator power converter | |
| CN101222192A (en) | Low-voltage and high-voltage motor soft starter composed of three-phase commutation bridge | |
| CN104506098B (en) | Low-power four-phase switched reluctance generator power converter | |
| CN109921704A (en) | A kind of switch reluctance generator current transformer and its control method | |
| CN110011580A (en) | A kind of switch reluctance generator converter system | |
| CN102006000A (en) | Non-directly grid-connected wind driven generator with connection type of power winding variable and method | |
| CN107026589B (en) | Low pulse self-excitation switch reluctance generator interleaved converter and its method of controlling switch | |
| CN106301102B (en) | A kind of multiphase permanent magnet synchronous motor drive system and its control method | |
| CN108418483A (en) | A kind of varying speed switch magnetic resistance wind-driven generator encourages by force pump booster converter system | |
| CN105763114B (en) | A kind of control method of double-winding asynchronous alternating current-direct current starting-generating system | |
| CN107359643A (en) | A kind of stator permanent-magnet dual-rotor wind power generation system | |
| CN108448974B (en) | A kind of switching magnetic-resistance wind-driven generator high pressure converter system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190326 Termination date: 20200308 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |