CN108667383A - A kind of switchette reluctance motor converter system - Google Patents
A kind of switchette reluctance motor converter system Download PDFInfo
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- CN108667383A CN108667383A CN201810597319.5A CN201810597319A CN108667383A CN 108667383 A CN108667383 A CN 108667383A CN 201810597319 A CN201810597319 A CN 201810597319A CN 108667383 A CN108667383 A CN 108667383A
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- 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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/08—Reluctance motors
- H02P25/092—Converters specially adapted for controlling reluctance motors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
A kind of switchette reluctance motor converter system, it is made of alternate two groups of four main circuits, output circuit, the first secondary circuit, the second secondary circuit, alternately directly output exchange supplies electricity to the direct rectification output of output circuit to four main circuits, eliminate inversion link, first secondary circuit can two-way operation, have charge a battery, enhanced excitation, reversed energy regenerative three zones, flexibly adjustable, the second secondary circuit auxiliary realizes the above three zones and can realize the work of doubly-fed generation control in short-term；It can complete current transformer using the present invention when as motor running；System structure is simply multi-functional, adapts to small-sized variable-speed wind-power, hydroenergy storage station integrated motor system and is incorporated to the complexity such as micro-capacitance sensor, four quadrant running field.
Description
Technical field
The present invention relates to switched reluctance machines fields, and in particular to a kind of low power intelligent multi-function switching magnetic-resistance electricity
Machine converter structure and its control method.
Background technology
Switched reluctance machines are simple in structure firm, and without winding, without permanent magnet on rotor, heat dissipation pressure is small, and reliability is high, system
Make of low cost, a phase winding, which does not work not, in the middle influences the normal work of other phase windings, and fault-tolerance is strong, has wide answer
Use foreground.
Switched reluctance machines are generally symmetrically distributed in by multiple phase windings in stator salient poles, according to salient pole between rotor and
The relative position of groove determines that the phase winding being specifically powered, each phase winding distinguish work according to opposite rotor position information timesharing
Make；When as generator operation, excitation and two big stages of power generation are generally divided into when work per phase winding, in winding inductance maximum area
The front and back excitation first that is powered in domain, excitation stage motor phase windings absorb the electric energy storage magnetic energy of external field power supply, follow-up basis
Real-time rotor position information terminates the excitation stage and the change of current enters power generating stage, and it is defeated that the magnetic energy stored in phase winding is converted into electric energy
Go out, electric current is down to zero completion work when into winding inductance Minimum Area；When as electric motor operation, the work per phase winding
Main body is the excitation stage, and be powered excitation when winding inductance Minimum Area or inductance rise beginning, and winding inductance to be entered is maximum
The front and back shutdown excitation in region completes work, and continuous current circuit is provided after excitation when necessary releases the remaining magnetic energy in winding
It puts.
The operation control that the excitation of switched reluctance machines, power generation will surround the convertor circuit for connecting its winding realizes do not have
There is winding convertor circuit, the operation of switched reluctance machines is not just known where to begin, so current transformer is significant.
When switch reluctance generator is run, existing converter system, in the excitation stage, field power supply much all realizes certainly
Pattern is encouraged, is not necessarily to frequently replace the manual working of accumulator or charging under separate excitation pattern in this way, but existing many self-excitation patterns
It selects increase field circuit directly to provide field power supply, but needs individual accumulator branch to provide starting when generator starting and encourage
Magnetoelectricity source, increases structure complexity.
As wind-powered electricity generation operating mode application field, switch reluctance generator generally requires one after current transformer sends out direct current energy
The boosting inverter of grade or multistage can just be supplied to load or power grid, if so current transformer itself has certain boost capability,
Subsequent burden and structure certainly will then be reduced；And presently, there are in more converter structure, it is defeated to generally require its direct current
First inversion after going out, the then rectification again after transformer isolation and boosting, if realizing alternating current simultaneously by current transformer itself
Output, then can save inversion link.
Wind-powered electricity generation field more particularly to it is grid-connected when, generator system must have low voltage ride-through capability, double-fed asynchronous wind
Force generating system there is hardware system and complicated control method needed for complicated low voltage crossing, generate electricity as switching magnetic-resistance
Machine certainly will grid-connected or load end the play for low-voltage crossing etc. if field circuit has the link of feedback energy regenerative
Alleviation is played the role of in strong variation, provides flexible selection；Simultaneously, it is contemplated that when power generation enhanced excitation and maximum power point with
There is wider output to encourage for the needs of raising speed adjusting performance when track, maximum power generation efficiency needs or electric operation, field circuit
Magnetic voltage regulation limits are also necessary.
Currently, no matter the converter structure of switch reluctance generator is equipped in view of self-excitation starting or separate excitation operation
Have accumulator, then replaced from time to time according to accumulator electric-quantity accumulator or it is artificial participate in charging operation be it is essential,
If automatic intelligentized charging operation can be realized, the reliability and intelligent level of converter system certainly will be improved.
Intelligent micro-grid and hydroenergy storage station are two fields that China greatly develops in recent years, the two are combined, i.e.,
The middle-size and small-size hydroenergy storage station of local micro-capacitance sensor is not taken seriously then, as power station when this field needs short of electricity in power grid
Power generation is pumped up water using water pump when power grid electric is more and consumes electric energy, it is often necessary to completed using different electric systems.
Invention content
According to above background technology, complicated variable-speed wind-power operating mode and power generation/electricity are adapted to present invention proposes a kind of
Dynamic time-division operation operating mode directly sends out alternating current, direct high voltage gain, the flexible controllable excitation circuit containing bidirectional multifunctional and opens
Close reluctance motor current transformer and its regulation and control method.
The technical scheme is that：
A kind of switchette reluctance motor converter system, by the first main circuit, the second main circuit, third main circuit,
Four main circuits, output circuit, the first secondary circuit, the second secondary circuit composition, technical characteristic be, first main circuit, described
Second main circuit, the third main circuit, the 4th main circuit input terminal be connected in parallel, output end is connected in parallel, they
Output end connect the input terminal of the output circuit simultaneously, their input terminal connects the second pair circuit output simultaneously
End, the described first secondary circuit input end of output circuit output end connection, first the second secondary circuit input of secondary circuit output end connection
End；
First main circuit is by the first diode, the second diode, third diode, first switch pipe, second switch pipe,
One phase winding, the first capacitor composition, technical characteristic are that first diode anode inputs anode as the first main circuit
End, and connect with the second main circuit, third main circuit, the 4th main circuit input positive terminal and the second secondary circuit output positive terminal,
Second diode cathode as the first main circuit input negative pole end, and with the second main circuit, third main circuit, the 4th main electricity
Road inputs negative pole end and the second secondary circuit output negative pole end connection, the first diode cathode connect the first switch tube anode,
First switch tube cathode connects first phase winding one end, the third diode cathode, the second diode anode connection the
The one phase winding other end, first capacitor anode, the second switch tube anode, third diode anode and the first capacitance
Device cathode connects, and is born as the first main circuit output negative pole end and the second main circuit output cathode end, the output of third main circuit
Extremely, the 4th main circuit output cathode end and output circuit input one end connection, and second switch tube cathode is as the first main electricity
Road output cathode end and the second main circuit output negative pole end, third main circuit output cathode end, the 4th main circuit output negative pole end,
And output circuit input other end connection；
Second main circuit is by third switching tube, the 4th switching tube, the 4th diode, the 5th diode, the second phase winding,
Two capacitors, third capacitor, the first inductance composition, technical characteristic are that the third switchs tube anode as the second main electricity
Road inputs positive terminal, and third switchs tube cathode and connects second phase winding one end, second phase winding other end connection described the
Four switch tube anodes and the third capacitor anode, third capacitor anode connect first inductance one end and the described 5th
Diode anode, the 5th diode cathode connect second capacitor anode and as the second main circuit output cathode end, institutes
It states the 4th diode cathode and inputs negative pole end, the 4th diode anode and the 4th switch tube cathode, first as the second main circuit
The inductance other end, the connection of the second capacitor anode, and as the second main circuit output negative pole end；
Third main circuit is by the 6th diode, the 7th diode, the 8th diode, the 5th switching tube, the 6th switching tube,
Three-phase windings, the 4th capacitor composition, technical characteristic are that the 6th diode anode inputs anode as third main circuit
End, the 6th diode cathode connection the 5th switch tube anode, the 5th switch tube cathode connection third phase winding one end,
8th diode cathode, the 8th diode anode connects the 4th capacitor anode, and is exported as third main circuit
Negative pole end, the 7th diode cathode as third main circuit input negative pole end, the 7th diode anode connect third phase around
The group other end, the 4th capacitor anode, the 6th switch tube anode, the 6th switch tube cathode export just as third main circuit
Extremely；
4th main circuit is by the 7th switching tube, the 8th switching tube, the 9th diode, the tenth diode, the 4th phase winding,
Five capacitors, the 6th capacitor, the second inductance composition, technical characteristic are that the 7th switch tube anode is as the 4th main electricity
Road inputs positive terminal, and the 7th switch tube cathode connects described 4th phase winding one end, the 4th phase winding other end connection described the
Eight switch tube anodes, the 6th capacitor anode, the 6th capacitor anode connect second inductance one end, the described 12nd
Pole pipe anode, the tenth diode cathode connect the 5th capacitor anode, and as the 4th main circuit output cathode end, described
9th diode cathode inputs negative pole end, the 8th switch tube cathode of the 9th diode anode connection, second as the 4th main circuit
The inductance other end, the 5th capacitor anode, and as the 4th main circuit output negative pole end；
Output circuit by transformer, the 11st diode, the 12nd diode, the 13rd diode, the 14th diode,
Third inductance, the 7th capacitor composition, technical characteristic are that the transformer primary winding both ends are inputted as output circuit
Both ends, Circuit Fault on Secondary Transformer winding one end connect the 11st diode anode and the 12nd diode cathode, transformation
The device secondary side winding other end connects the 13rd diode anode and the 14th diode cathode, the 11st diode
Cathode and the connection of the 13rd diode cathode, and connect with third inductance one end, the third inductance other end and the described 7th
Capacitor anode connects, and as output circuit output cathode end, while also being connect with the first secondary circuit input positive terminal, the tenth
Two diode anodes and the 14th diode anode, the connection of the 7th capacitor anode, and as output circuit output negative pole end, together
When negative pole end is also output and input with the first secondary circuit, the negative pole end that outputs and inputs of the second secondary circuit is connect；
First secondary circuit by the 9th switching tube, the tenth switching tube, the 15th diode, the 16th diode, the 4th inductance,
8th capacitor forms, and technical characteristic is that the 9th switch tube anode is connected with the 15th diode cathode, and is made
Positive terminal is inputted for the first secondary circuit, the 9th switch tube cathode is connect with the 15th diode anode, also with the described 16th
Pole pipe cathode, the tenth switch tube anode, the connection of described 4th inductance one end, the 4th inductance other end and the 8th capacitance
Device anode connects, and is connect with the second secondary circuit input positive terminal as the first secondary circuit output positive terminal, and the 8th capacitor is negative
Pole, the tenth switch tube cathode, the connection of the 16th diode anode, and output and input negative pole end as the first secondary circuit；
Second secondary circuit is by the 11st switching tube, the 12nd switching tube, the 13rd switching tube, accumulator, the 17th pole
Pipe forms, and technical characteristic is the 11st switch tube anode, the 12nd switch tube anode, the 13rd switch
Tube cathode connects, and inputs positive terminal as the second secondary circuit, the 12nd switch tube cathode, the 13rd switch tube anode, described
Battery positive voltage, the 17th diode anode connection, battery terminal negative output and input negative pole end as the second secondary circuit,
17th diode cathode and the 11st switch tube cathode connection, and as the second secondary circuit output positive terminal；
All switching tubes are three end full-control type power electronic switching tubes；Circuit Fault on Secondary Transformer umber of turn be primary side around
Four times or more of group the number of turns；First phase winding, the second phase winding, third phase winding, the 4th phase winding are distributed in switch in order
On each salient pole of reluctance motor stator.
The control method of small-sized varying speed switch magnetic resistance current transformer of wind-driven generator system of the present invention is：All switching tubes
Original state is off-state；It is run when as switch reluctance generator, according to switch reluctance generator operation logic, works as detection
When need to devote oneself to work to certain phase winding, place main circuit is devoted oneself to work；
When detecting that the first phase winding of need is devoted oneself to work, it is closed first switch pipe, the excitation electricity of the second secondary circuit output
Can through the first diode, first switch pipe, the second diode to the first phase winding for electrical excitation, according to rotor position information excitation
At the end of stage, disconnect first switch pipe and be closed at second switch pipe, the energy storage of the first phase winding via second switch pipe and
Third diode generates electricity output to output circuit outward, waits for disconnecting second switch pipe at the end of power generating stage；
When detecting that the second phase winding of need need to devote oneself to work, it is closed third switching tube and the 4th switching tube, the second secondary electricity
The excitation electric energy of road output through third switching tube, the 4th switching tube, the 4th diode to the second phase winding for electrical excitation, while the
The energy storage of three capacitors is shifted via the 4th switching tube to the first inductance, according to the rotor position information excitation stage at the end of, break
Open the 4th switching tube, the energy storage of the second phase winding plus the second secondary circuit output via third switching tube, the 5th diode, the
Three capacitors, the 4th diode generate electricity outward output simultaneously to third capacitor charge, while the energy storage of the first inductance also via
5th diode generates electricity output outward, waits for disconnecting third switching tube at the end of power generating stage；
When detect need third phase winding to devote oneself to work when, be closed the 5th switching tube, the excitation electricity of the second secondary circuit output
It can be through the 6th diode, the 5th switching tube, the 7th diode to third phase winding power excitation, according to rotor position information excitation
At the end of stage, disconnect the 5th switching tube and be closed at the 6th switching tube, the energy storage of third phase winding via the 6th switching tube and
8th diode generates electricity output to output circuit outward, waits for disconnecting the 6th switching tube at the end of power generating stage；
When detecting that the 4th phase winding of need need to devote oneself to work, it is closed the 7th switching tube and the 8th switching tube, the second secondary electricity
The excitation electric energy of road output through the 7th switching tube, the 8th switching tube, the 9th diode to the 4th phase winding for electrical excitation, while the
The energy storage of six capacitors is shifted via the 8th switching tube to the second inductance, according to the rotor position information excitation stage at the end of, break
Open the 8th switching tube, the energy storage of the 4th phase winding plus the second secondary circuit output via the 7th switching tube, the tenth diode, the
Six capacitors, the 9th diode generate electricity outward output simultaneously to the 6th capacitor charge, while the energy storage of the second inductance also via
Tenth diode generates electricity output outward, waits for disconnecting the 7th switching tube at the end of power generating stage；
Switch reluctance generator operation in, the first main circuit, the second main circuit, third main circuit, the 4th main circuit it is defeated
Go out electric current alternating alternation and flows through output circuit transformer primary winding, its secondary side winding after transformer Magnetic isolation and boosting
Output exchange is whole via the 11st diode, the 12nd diode, the 13rd diode, the rectifier bridge of the 14th diode composition
Then stream exports direct current after third inductance and the 7th capacitor filtering again, while as the first secondary circuit input power；
When the first secondary circuit forward direction work, i.e. its output end is timing, the tenth switching tube off-state always, by the 9th
Switching tube carries out PWM mode work；
Required excitation voltage is run when the accumulator both end voltage of the second secondary circuit meets switch reluctance generator, and is stored
When battery power is higher than minimum, the 9th switching tube duty cycle of switching is zero, the 11st switching tube, the 12nd switching tube, the tenth
Three switching tubes are in off-state, and excitation electric energy is separately provided by accumulator；When switch reluctance generator wind power system needs
When enhanced excitation needs the excitation voltage than battery tension bigger, the 11st switching tube is closed, and the 9th switching tube is according to PWM
Pattern works, and specific duty ratio is adjusted according to the needs to excitation voltage；When battery electric energy is less than minimum limits value, close
The 12nd switching tube is closed, the first secondary circuit realizes the charging operation to accumulator by the 9th switching tube PWM controls；
When load-side needs the electric energy or voltage support of bigger, the first secondary circuit reverse operation, the 13rd switching tube closes
It closes, the tenth switching tube works according to PWM mode, and the 9th switching tube, the 12nd switching tube are off-state, the 11st switching tube
It is closed, to which accumulator is both by the first secondary reversed energy regenerative of circuit, normal excitation voltage is also provided and the output that generates electricity, to realize
Doubly-fed generation in short-term；
The current transformer of the present invention is used at the same time as the current transformer of switched reluctance motor, including individually solid by accumulator
Fixed power supply, external power supply i.e. the 7th capacitor-side DC power supply is after the first the 9th switching tube PWM voltage transformations of secondary circuit through the
11 switching tube variable voltage controls are powered and charge a battery equal flexibly selection, and each main circuit and output circuit are as respectively at this time
Leadage circuit work when phase winding electric operation, energy regeneration, specific mode switching control is identical, and difference is only according to switch
The rotor position information of reluctance motor carries out opening excitation and shutdown excitation.
The technique effect of the present invention mainly has：
(1) in each main circuit of the invention, the main circuit output current direction of adjacent phase winding on the contrary, directly it is in parallel simultaneously
Alternating current is obtained after being connect with transformer primary winding both ends, the tradition for changing switch reluctance generator output direct current is recognized
Know, in view of the structure of rectification again, knot of the invention is isolated after usually using inversion in switch reluctance generator system transformation of electrical energy
Structure then eliminates inversion link, reduces cost, improves reliability.
(2) the Circuit Fault on Secondary Transformer umber of turn of output circuit is significantly greater than first side winding the number of turns, and isolation while is real
Existing high gain voltage output is saved or is alleviated follow-up increasing apparatus burden, through third inductance and the 7th capacitor filtering, also may be used
It is directly incorporated into micro-capacitance sensor or is loaded to middle pressure.
(3) first secondary circuits can be realized three by two switching tubes, an inductance, two diodes, a capacitor
Item function (accumulator charging, enhanced excitation, energy regenerative of reversely boosting), and it is flexibly controllable, and each PWM controls only need to be directed to one
Switching tube, cost performance are high.
(4) second secondary circuits rely on three switching tubes, and auxiliary realizes enhanced excitation, accumulator charging, reversed energy regenerative respectively,
And the operating mode of doubly-fed generation in short-term when reversed energy regenerative after the 11st switching tube is closed, this is existing switch reluctance generator at present
What system can not accomplish, the adaptability of switch reluctance generator system is greatly enhanced, it is especially grid-connected to complicated variable-speed wind-power
The application in field.
(5) generator, current transformer of the invention is used as to have accumulator self-starting ability；When as motor running, this hair
Bright current transformer is not necessarily to increase any structure, and can be all of only according to the shutdown of rotor position information excitation stage
The difference of position angle, the structure of former power generating stage can be used to release extra energy storage feedback, have energy regenerating capability, while
It plays a protective role to machine winding, the first secondary circuit and the second secondary circuit can realize switch magnetic when non-accumulator is independently-powered
Motor voltage regulating governor system control is hindered, when needing to run by motor working condition for a long time, for example hydroenergy storage station is integrated
In electric generator/electric motor system, it is extra that the micro-capacitance sensor electric energy reverse flow of the 7th capacitor end is consumed by switched reluctance motor
Electric energy, at this time switched reluctance motor system be equivalent to switched reluctance motor water pump system.
(6) when being run for high-speed ranges such as non-direct drive small winds, the alternative frequency of transformer is higher, so as to subtract
The larger transformer equipment lightweight of unique volume weight in small converter structure.
(7) from the present invention as can be seen that cooperation is with controller and required detection sensor, entire converter system can be real
Existing intelligentized operation replaces accumulator, power generation and electronic operating mode automatic conversion, automatic speed regulation without artificial, and multifunction is suitable
Ying Xingqiang, cost performance is high, simple in structure.
Description of the drawings
Fig. 1 show a kind of switchette reluctance motor converter system structure chart of the present invention.
Specific implementation mode
The small-sized four phase switch reluctances motor converter system structure chart of the present embodiment as shown in Fig. 1, by the first main electricity
Road 1, the second main circuit 2, third main circuit 3, the 4th main circuit 4, secondary the 6, second secondary 7 groups of the circuit of circuit of output circuit 5, first
At, the first main circuit 1, the second main circuit 2, third main circuit 3, the 4th main circuit 4 input terminal be connected in parallel, output end it is in parallel
Connection, their output end connect the input terminal of output circuit 5 simultaneously, and it is defeated that their input terminal connects the second secondary circuit 7 simultaneously
Outlet, 5 output end of output circuit connection, 6 input terminal of the first secondary circuit, first the second secondary circuit 7 of 6 output end of secondary circuit connection are defeated
Enter end；Winding is respectively M/N/P/Q phase windings by the sequence being distributed in Stators for Switched Reluctance Motors；
First main circuit 1 is by the first diode D1, the second diode D2, third diode D3, first switch pipe V1, second
Switching tube V2, the first phase winding M, the first capacitor C1 compositions, the first diode D1 anodes input anode as the first main circuit 1
End, and connect with the second main circuit 2, third main circuit 3, the 4th main circuit 4 input positive terminal and the second 7 output cathode end of secondary circuit
Connect, the second diode D2 cathodes as the first main circuit 1 input negative pole end, and with the second main circuit 2, third main circuit the 3, the 4th
Main circuit 4 inputs negative pole end and the second 7 output negative pole end of secondary circuit connection, the first diode D1 cathodes connect first switch pipe V1
Anode, first switch pipe V1 cathodes connect first one end phase winding M, third diode D3 cathodes, and the second diode D2 anodes connect
Connect the first phase winding M other ends, the first capacitor C1 anodes, second switch pipe V2 anodes, third diode D3 anodes and first
Capacitor C1 cathode connect, and as 1 output negative pole end of the first main circuit and 2 output cathode end of the second main circuit, the main electricity of third
3 output negative pole end of road, 4 output cathode end of the 4th main circuit and output circuit 5 input one end connection, and second switch pipe V2 is cloudy
Pole is as 1 output cathode end of the first main circuit and 2 output negative pole end of the second main circuit, 3 output cathode end of third main circuit, the 4th
4 output negative pole end of main circuit and output circuit 5 input other end connection；
Second main circuit 2 is by third switching tube V3, the 4th switching tube V4, the 4th diode D4, the 5th diode D5, second
Phase winding N, the second capacitor C2, third capacitor C3, the first inductance L1 compositions, third switching tube V3 anodes are as the second main electricity
Road 2 inputs positive terminal, and third switching tube V3 cathodes connect second one end phase winding N, and second phase winding N other ends connection the 4th is opened
Pipe V4 anodes and third capacitor C3 anodes are closed, third capacitor C3 cathode connect first one end inductance L1 and the 5th diode D5
Anode, the 5th diode D5 cathodes the second capacitor of connection C2 are positive and as 2 output cathode end of the second main circuit, the four or two pole
Pipe D4 cathodes input negative pole end, the 4th diode D4 anodes and the 4th switching tube V4 cathodes, the first inductance as the second main circuit 2
The L1 other ends, the connection of the second capacitor C2 cathode, and as 2 output negative pole end of the second main circuit；
Third main circuit 3 is by the 6th diode D6, the 7th diode D7, the 8th diode D8, the 5th switching tube V5, the 6th
Switching tube V6, third phase winding P, the 4th capacitor C4 compositions, the 6th diode D6 anodes input anode as third main circuit 3
End, the 6th diode D6 cathodes the 5th switching tube V5 anodes of connection, the one end the 5th switching tube V5 cathodes connection third phase winding P,
8th diode D8 cathodes, the 8th diode D8 anodes connect the 4th capacitor C4 cathode, and negative as the output of third main circuit 3
Extremely, the 7th diode D7 cathodes input negative pole end as third main circuit 3, and the 7th diode D7 anodes connect third phase winding
The P other ends, the 4th capacitor C4 anodes, the 6th switching tube V6 anodes, the 6th switching tube V6 cathodes are exported as third main circuit 3
Positive terminal；
4th main circuit 4 is by the 7th switching tube V7, the 8th switching tube V8, the 9th diode D9, the tenth diode D10,
Four phase winding Q, the 5th capacitor C5, the 6th capacitor C6, the second inductance L2 compositions, the 7th switching tube V7 anodes are as the 4th master
Circuit 4 inputs positive terminal, and the 7th switching tube V7 cathodes connect the 4th one end phase winding Q, the 4th phase winding Q other ends connection the 8th
Switching tube V8 anodes, the 6th capacitor C6 anodes, the 6th capacitor C6 cathode connect second one end inductance L2, the tenth diode
D10 anodes, the 5th capacitor C5 anode of the tenth diode D10 cathodes connection, and as 4 output cathode end of the 4th main circuit, the
Nine diode D9 cathodes as the 4th main circuit 4 input negative pole end, the 9th diode D9 anodes connect the 8th switching tube V8 cathodes,
The second inductance L2 other ends, the 5th capacitor C5 cathode, and as 4 output negative pole end of the 4th main circuit；
Output circuit 5 is by transformer T, the 11st diode D11, the 12nd diode D12, the 13rd diode D13,
14 diode D14, third inductance L3, the 7th capacitor C7 compositions, the both ends first side winding a transformer T are as output circuit 5
Both ends are inputted, the one end transformer T secondary side winding b connects the 11st diode D11 anodes and the 12nd diode D12 cathodes,
The transformer T secondary side winding b other ends the 13rd diode D13 anodes of connection and the 14th diode D14 cathodes, the 11st
Pole pipe D11 cathodes and the connection of the 13rd diode D13 cathodes, and connect with the one end third inductance L3, the third inductance L3 other ends
It is connect with the 7th capacitor C7 anodes, and as 5 output cathode end of output circuit, while also inputting anode with the first secondary circuit 6
End connection, the 12nd diode D12 anodes and the 14th diode D14 anodes, the connection of the 7th capacitor C7 cathode, and as defeated
Go out 5 output negative pole end of circuit, at the same also output and input with the first secondary circuit 6 negative pole end, the second secondary circuit 7 is output and input
Negative pole end connects；
First secondary circuit 6 is by the 9th switching tube V9, the tenth switching tube V10, the 15th diode D15, the 16th diode
D16, the 4th inductance L4, the 8th capacitor C8 compositions, the 9th switching tube V9 anodes and the connection of the 15th diode D15 cathodes, and
Positive terminal is inputted as the first secondary circuit 6, the 9th switching tube V9 cathodes are connect with the 15th diode D15 anodes, also with the tenth
Six diode D16 cathodes, the tenth switching tube V10 anodes, the connection of the 4th one end inductance L4, the 4th inductance L4 other ends and the 8th electricity
Container C8 anodes connect, and input positive terminal with the second secondary circuit 7 as the first secondary 6 output cathode end of circuit and connect, the 8th electricity
Container C8 cathode, the tenth switching tube V10 cathodes, the connection of the 16th diode D16 anodes, and as the first secondary input of circuit 6 and
Output negative pole end；
Second secondary circuit 7 by the 11st switching tube V11, the 12nd switching tube V12, the 13rd switching tube V13, accumulator X,
17th diode D17 compositions, the 11st switching tube V11 anodes, the 12nd switching tube V12 anodes, the 13rd switching tube V13 are cloudy
Pole connects, and inputs positive terminal as the second secondary circuit 7, and the 12nd switching tube V12 cathodes, store the 13rd switching tube V13 anodes
Battery X anodes, the connection of the 17th diode D17 anodes, accumulator X cathode output and input negative pole end as the second secondary circuit 7,
17th diode D17 cathodes and the connection of the 11st switching tube V11 cathodes, and as the second 7 output cathode end of secondary circuit；
All switching tubes of the present embodiment are three end full-control type power electronic switching tube IGBT or power MOSFET or nitridation
The devices such as gallium or silicon carbide or GTR；Transformer T secondary side winding b the number of turns is the octuple of first side winding a the number of turns；First phase around
Group M, the second phase winding N, third phase winding P, the 4th phase winding Q are distributed in order on each salient pole of Stators for Switched Reluctance Motors.
The control method of the four phase switchette reluctance motor converter systems of the present embodiment, the initial shape of all switching tubes
State is off-state；It is run when as switch reluctance generator, according to switch reluctance generator operation logic, when detecting certain phase
When winding need to devote oneself to work, place main circuit is devoted oneself to work；
When detecting that the first phase winding M of need devotes oneself to work, it is closed first switch pipe V1, what the second secondary circuit 7 exported encourages
Magneto-electric energy through the first diode D1, first switch pipe V1, the second diode D2 to the first phase winding M for electrical excitation, according to rotor
At the end of the location information excitation stage, disconnects first switch pipe V1 and be closed at second switch pipe V2, the energy storage of the first phase winding M
Output is generated electricity outward via second switch pipe V2 and third diode D3 to output circuit 5, waits for disconnecting the at the end of power generating stage
Two switching tube V2, the first capacitor C1 play the role of voltage support；
When detect need the second phase winding N need to devote oneself to work when, be closed third switching tube V3 and the 4th switching tube V4, second
The excitation electric energy that secondary circuit 7 exports is supplied through third switching tube V3, the 4th switching tube V4, the 4th diode D4 to the second phase winding N
Electrical excitation, while the energy storage of third capacitor C3 is shifted via the 4th switching tube V4 to the first inductance L1, is believed according to rotor-position
At the end of ceasing the excitation stage, disconnect the 4th switching tube V4, the energy storage of the second phase winding N plus the second secondary circuit 7 output via
Third switching tube V3, the 5th diode D5, third capacitor C3, the 4th diode D4 generate electricity output simultaneously to third capacitance outward
Device C3 charging, while the energy storage of the first inductance L1 also generates electricity output via the 5th diode D5 outward, at the end of waiting for power generating stage
It disconnects third switching tube V3, the second capacitor C2 and plays the role of voltage support；
When detect need third phase winding P to devote oneself to work when, be closed the 5th switching tube V5, what the second secondary circuit 7 exported encourages
Magneto-electric energy through the 6th diode D6, the 5th switching tube V5, the 7th diode D7 to third phase winding P for electrical excitation, according to rotor
At the end of the location information excitation stage, disconnects the 5th switching tube V5 and be closed at the 6th switching tube V6, the energy storage of third phase winding P
Output is generated electricity outward via the 6th switching tube V6 and the 8th diode D8 to output circuit 5, waits for disconnecting the at the end of power generating stage
Six switching tube V6, the 4th capacitor C4 play the role of voltage support；
When detect need the 4th phase winding Q need to devote oneself to work when, be closed the 7th switching tube V7 and the 8th switching tube V8, second
The excitation electric energy that secondary circuit 7 exports is supplied through the 7th switching tube V7, the 8th switching tube V8, the 9th diode D9 to the 4th phase winding Q
Electrical excitation, while the energy storage of the 6th capacitor C6 is shifted via the 8th switching tube V8 to the second inductance L2, is believed according to rotor-position
At the end of ceasing the excitation stage, disconnect the 8th switching tube V8, the energy storage of the 4th phase winding Q plus the second secondary circuit 7 output via
7th switching tube V7, the tenth diode D10, the 6th capacitor C6, the 9th diode D9 generate electricity output simultaneously to the 6th electricity outward
Container C6 charging, while the energy storage of the second inductance L2 also generates electricity output via the tenth diode D10 outward, to the end of power generating stage
When disconnect the 7th switching tube V7, the 5th capacitor C5 plays the role of voltage support；
The rotor salient pole overlap coefficient of the switched reluctance machines of the present embodiment is 0.2, as during generator operating mode, is expired
When the previous phase winding of foot is in power generating stage, in the excitation stage, power generating stage overlapping, encourage latter phase winding partial section does not occur
There is not the case where coincidence in the magnetic stage, when rated condition and meets：Second phase winding N at the end of first phase winding M power generating stages
Or the 4th phase winding Q excitations terminate, third phase winding P or the first phase winding M excitation knots at the end of the second phase winding N power generating stages
Beam, the 4th phase winding Q or the second phase winding N excitations terminate at the end of third phase winding P power generating stages, the 4th phase winding Q power generations
The first phase winding M or third phase winding P excitations terminate at the end of stage；
In switch reluctance generator operation, the first main circuit 1, the second main circuit 2, third main circuit 3, the 4th main circuit 4
Output current alternating alternation flow through output circuit transformer T first side winding a, and when the excitation that meet rated condition as above
With when power generation conditions, it can be achieved that the continuous alternating currents of transformer T first side windings a obtain, then through transformer T Magnetic isolations and boosting
Its secondary side winding b outputs exchange is via the 11st diode D11, the 12nd diode D12, the 13rd diode D13, the afterwards
Then the rectifier bridge rectification of 14 diode D14 compositions exports direct current after third inductance L3 and the 7th capacitor C7 filtering again
Electricity, while as the input power of the first secondary circuit 6；
When the first secondary 6 positive work of circuit, i.e., its output end is timing, and the tenth switching tube V10 is always off-state,
PWM mode work is carried out by the 9th switching tube V9；
Required excitation voltage is run when the accumulator X both end voltages of the second secondary circuit 7 meet switch reluctance generator, and
When accumulator X electric energy is higher than minimum, the 9th switching tube V9 duty cycle of switching is zero (off-state), the 11st switching tube V11,
12nd switching tube V12, the 13rd switching tube V13 are in off-state, and excitation electric energy is separately provided by accumulator X；Work as electricity
When machine system needs enhanced excitation to need the excitation voltage than accumulator X voltage biggers, the 11st switching tube V11 is closed, the
Nine switching tube V9 work according to PWM mode, and specific duty ratio is adjusted according to the needs to excitation voltage；When accumulator X electric energy
When less than minimum limits value, it is closed the 12nd switching tube V12, the first secondary circuit 6 is realized by the 9th switching tube PWM controls to electric power storage
The charging operation in pond；
When second secondary circuit, 7 positive work is that the 9th switching tube V9 works according to PWM mode, the output of the second secondary circuit 7
It is readily available relational expression between voltage UC8 and input voltage UC7：
UC8=α * UC7 (1)
α is the 9th switching tube V9 duty ratios in formula (1), adjusts α, you can realizes the spirit to the first 6 output voltage of secondary circuit
It is living to adjust；
When load-side needs the electric energy or voltage support of bigger, the first 6 reverse operation of secondary circuit, the 13rd switching tube
V13 is closed, and the tenth switching tube V10 works according to PWM mode, and the 9th switching tube V9, the 12nd switching tube V12 are disconnection shape
State, the 11st switching tube V11 is also closed at this time, so that accumulator X is also provided normal both by the first 6 reversed energy regenerative of secondary circuit
Excitation voltage and the output that generates electricity, to realize doubly-fed generation (in short-term), for the reverse operation of the first secondary circuit 6 at this time, if the
The duty ratio of ten switching tube V10 is α 0, then：
UC7=UC8/ (1- α 0) (2)
The reality that the 7th ends capacitor C7 rated voltage is more than accumulator X rated voltages is fully met, and by adjusting α
0 realizes the adjusting for meeting the requirements voltage.
The current transformer of the present invention is used at the same time as the current transformer of switched reluctance motor, including independent by accumulator X
Fixed power supply, external power supply i.e. the 7th capacitor C7 side DC power supplies are after the first the 9th switching tube PWM voltage transformations of secondary circuit 6
It powers through the 11st switching tube V11 variable voltage controls and is flexibly selected to accumulator X chargings etc., at this time each main circuit and output electricity
Leadage circuit work when road is as each phase winding electric operation, energy regeneration, specific mode switching control is identical, and difference is only
It carries out opening excitation according to the rotor position information of switched reluctance motor and turns off the relevant control of excitation.
Claims (2)
1. a kind of switchette reluctance motor converter system, by the first main circuit, the second main circuit, third main circuit, the 4th
Main circuit, output circuit, the first secondary circuit, the second secondary circuit composition, technical characteristic be, first main circuit, described the
Two main circuits, the third main circuit, the 4th main circuit input terminal be connected in parallel, output end is connected in parallel, they
Output end connects the input terminal of the output circuit simultaneously, their input terminal connects the described second secondary circuit output end simultaneously,
The described first secondary circuit input end of output circuit output end connection, first the second secondary circuit input end of secondary circuit output end connection；
First main circuit is by the first diode, the second diode, third diode, first switch pipe, second switch pipe, the first phase
Winding, the first capacitor composition, technical characteristic are that first diode anode inputs positive terminal as the first main circuit,
And connect with the second main circuit, third main circuit, the 4th main circuit input positive terminal and the second secondary circuit output positive terminal, it is described
Second diode cathode inputs negative pole end as the first main circuit, and defeated with the second main circuit, third main circuit, the 4th main circuit
Enter negative pole end and the second secondary circuit output negative pole end connects, the first diode cathode connection first switch tube anode, first
It switchs tube cathode and connects first phase winding one end, the third diode cathode, the second diode anode connects the first phase
The winding other end, first capacitor anode, the second switch tube anode, third diode anode and the first capacitor are negative
Pole connects, and as the first main circuit output negative pole end and the second main circuit output cathode end, third main circuit output negative pole end,
4th main circuit output cathode end and output circuit input one end connection, and second switch tube cathode is defeated as the first main circuit
Go out positive terminal and the second main circuit output negative pole end, third main circuit output cathode end, the 4th main circuit output negative pole end, and
Output circuit inputs other end connection；
Second main circuit is by third switching tube, the 4th switching tube, the 4th diode, the 5th diode, the second phase winding, the second electricity
Container, third capacitor, the first inductance composition, technical characteristic are that the third switch tube anode is defeated as the second main circuit
Enter positive terminal, third switchs tube cathode and connects second phase winding one end, and second phase winding other end connection the described 4th is opened
Tube anode and the third capacitor anode are closed, third capacitor anode connects first inductance one end and the five or two pole
Tube anode, the 5th diode cathode connect second capacitor anode and as the second main circuit output cathode ends, and described the
Four diode cathodes input negative pole end, the 4th diode anode and the 4th switch tube cathode, the first inductance as the second main circuit
The other end, the connection of the second capacitor anode, and as the second main circuit output negative pole end；
Third main circuit is by the 6th diode, the 7th diode, the 8th diode, the 5th switching tube, the 6th switching tube, third phase
Winding, the 4th capacitor composition, technical characteristic are that the 6th diode anode inputs positive terminal as third main circuit,
6th diode cathode connection the 5th switch tube anode, the 5th switch tube cathode connect third phase winding one end, institute
The 8th diode cathode is stated, the 8th diode anode connects the 4th capacitor anode, and negative as the output of third main circuit
Extremely, the 7th diode cathode inputs negative pole end as third main circuit, and the 7th diode anode connects third phase winding
The other end, the 4th capacitor anode, the 6th switch tube anode, the 6th switch tube cathode is as third main circuit output cathode
End；
4th main circuit is by the 7th switching tube, the 8th switching tube, the 9th diode, the tenth diode, the 4th phase winding, the 5th electricity
Container, the 6th capacitor, the second inductance composition, technical characteristic are that the 7th switch tube anode is defeated as the 4th main circuit
Enter positive terminal, the 7th switch tube cathode connects described 4th phase winding one end, and the 4th phase winding other end connection the described 8th is opened
Tube anode, the 6th capacitor anode are closed, the 6th capacitor anode connects second inductance one end, the tenth diode
Anode, the tenth diode cathode connect the 5th capacitor anode, and as the 4th main circuit output cathode end, and the described 9th
Diode cathode inputs negative pole end, the 8th switch tube cathode of the 9th diode anode connection, the second inductance as the 4th main circuit
The other end, the 5th capacitor anode, and as the 4th main circuit output negative pole end；
Output circuit is by transformer, the 11st diode, the 12nd diode, the 13rd diode, the 14th diode, third
Inductance, the 7th capacitor composition, technical characteristic are that the transformer primary winding both ends are as output circuit input two
End, Circuit Fault on Secondary Transformer winding one end connect the 11st diode anode and the 12nd diode cathode, transformer
The secondary side winding other end connects the 13rd diode anode and the 14th diode cathode, and the 11st diode is cloudy
Pole is connected with the 13rd diode cathode, and is connect with third inductance one end, the third inductance other end and the 7th electricity
Capacitor positive electrode connects, and as output circuit output cathode end, while also being connect with the first secondary circuit input positive terminal, the 12nd
Diode anode and the 14th diode anode, the connection of the 7th capacitor anode, and as output circuit output negative pole end, simultaneously
Also negative pole end is output and input with the first secondary circuit, the negative pole end that outputs and inputs of the second secondary circuit is connect；
First secondary circuit is by the 9th switching tube, the tenth switching tube, the 15th diode, the 16th diode, the 4th inductance, the 8th
Capacitor forms, and technical characteristic is, the 9th switch tube anode is connected with the 15th diode cathode, and as the
One secondary circuit inputs positive terminal, and the 9th switch tube cathode is connect with the 15th diode anode, also with the 16th diode
Cathode, the tenth switch tube anode, the connection of described 4th inductance one end, the 4th inductance other end and the 8th capacitor are just
Pole connects, and inputs positive terminal with the second secondary circuit as the first secondary circuit output positive terminal and connect, the 8th capacitor anode, the
Ten switch tube cathodes, the connection of the 16th diode anode, and output and input negative pole end as the first secondary circuit；
Second secondary circuit is by the 11st switching tube, the 12nd switching tube, the 13rd switching tube, accumulator, the 17th diode group
At technical characteristic is that the 11st switch tube anode, the 12nd switch tube anode, the 13rd switching tube are cloudy
Pole connects, and inputs positive terminal, the 12nd switch tube cathode, the 13rd switch tube anode, the electric power storage as the second secondary circuit
Pond anode, the 17th diode anode connection, battery terminal negative output and input negative pole end as the second secondary circuit, and the tenth
Seven diode cathodes and the 11st switch tube cathode connection, and as the second secondary circuit output positive terminal；
All switching tubes are three end full-control type power electronic switching tubes；Circuit Fault on Secondary Transformer umber of turn is first side winding circle
Several four times or more；First phase winding, the second phase winding, third phase winding, the 4th phase winding are distributed in switching magnetic-resistance in order
On each salient pole of motor stator.
2. the control method of small-sized varying speed switch magnetic resistance current transformer of wind-driven generator system according to claim 1 is：Institute
It is off-state to have the original state of switching tube；It runs when as switch reluctance generator, is run according to switch reluctance generator
Principle, when detecting that certain phase winding need to devote oneself to work, place main circuit is devoted oneself to work；
When detecting that the first phase winding of need is devoted oneself to work, it is closed first switch pipe, the excitation electric energy warp of the second secondary circuit output
First diode, first switch pipe, the second diode to the first phase winding for electrical excitation, according to the rotor position information excitation stage
At the end of, it disconnects first switch pipe and is closed at second switch pipe, the energy storage of the first phase winding is via second switch pipe and third
Diode generates electricity output to output circuit outward, waits for disconnecting second switch pipe at the end of power generating stage；
When detecting that the second phase winding of need need to devote oneself to work, it is closed third switching tube and the 4th switching tube, the second secondary circuit is defeated
The excitation electric energy gone out through third switching tube, the 4th switching tube, the 4th diode to the second phase winding for electrical excitation, while third electricity
The energy storage of container is shifted via the 4th switching tube to the first inductance, at the end of the rotor position information excitation stage, disconnects the
The energy storage of four switching tubes, the second phase winding is electric via third switching tube, the 5th diode, third plus the output of the second secondary circuit
Container, the 4th diode generate electricity output simultaneously to the charging of third capacitor outward, while the energy storage of the first inductance is also via the 5th
Diode generates electricity output outward, waits for disconnecting third switching tube at the end of power generating stage；
When detect need third phase winding to devote oneself to work when, be closed the 5th switching tube, the excitation electric energy warp of the second secondary circuit output
6th diode, the 5th switching tube, the 7th diode are to third phase winding power excitation, according to the rotor position information excitation stage
At the end of, it disconnects the 5th switching tube and is closed at the 6th switching tube, the energy storage of third phase winding is via the 6th switching tube and the 8th
Diode generates electricity output to output circuit outward, waits for disconnecting the 6th switching tube at the end of power generating stage；
When detecting that the 4th phase winding of need need to devote oneself to work, it is closed the 7th switching tube and the 8th switching tube, the second secondary circuit is defeated
The excitation electric energy gone out through the 7th switching tube, the 8th switching tube, the 9th diode to the 4th phase winding for electrical excitation, while the 6th electricity
The energy storage of container is shifted via the 8th switching tube to the second inductance, at the end of the rotor position information excitation stage, disconnects the
The energy storage of eight switching tubes, the 4th phase winding adds the output of the second secondary circuit via the 7th switching tube, the tenth diode, the 6th electricity
Container, the 9th diode generate electricity output simultaneously to the charging of the 6th capacitor outward, while the energy storage of the second inductance is also via the tenth
Diode generates electricity output outward, waits for disconnecting the 7th switching tube at the end of power generating stage；
In switch reluctance generator operation, the first main circuit, the second main circuit, third main circuit, the output of the 4th main circuit are electric
Alternately alternation flows through output circuit transformer primary winding to stream, its secondary side winding exports after transformer Magnetic isolation and boosting
The rectifier bridge rectification that exchange is formed via the 11st diode, the 12nd diode, the 13rd diode, the 14th diode,
Then direct current is exported after third inductance and the 7th capacitor filtering again, while as the first secondary circuit input power；
When the first secondary circuit forward direction work, i.e. its output end is timing, the tenth switching tube off-state always, by the 9th switch
Pipe carries out PWM mode work；
When the accumulator both end voltage of the second secondary circuit meets excitation voltage needed for switch reluctance generator operation, and accumulator
When electric energy is higher than minimum, the 9th switching tube duty cycle of switching is zero, and the 11st switching tube, the 12nd switching tube, the 13rd are opened
It closes pipe and is in off-state, excitation electric energy is separately provided by accumulator；When switch reluctance generator wind power system needs to strengthen
When excitation needs the excitation voltage than battery tension bigger, the 11st switching tube is closed, and the 9th switching tube is according to PWM mode
Work, specific duty ratio are adjusted according to the needs to excitation voltage；When battery electric energy is less than minimum limits value, it is closed the
12 switching tubes, the first secondary circuit realize the charging operation to accumulator by the 9th switching tube PWM controls；
When load-side needs the electric energy or voltage support of bigger, the first secondary circuit reverse operation, the 13rd switching tube is closed, the
Ten switching tubes work according to PWM mode, and the 9th switching tube, the 12nd switching tube are off-state, and the 11st switching tube is closed,
To which accumulator is both by the first secondary reversed energy regenerative of circuit, normal excitation voltage is also provided and the output that generates electricity, in short-term to realization
Doubly-fed generation；
The current transformer of the present invention is used at the same time as the current transformer of switched reluctance motor, including is supplied by accumulator is individually fixed
Electricity, external power supply i.e. the 7th capacitor-side DC power supply is after the first the 9th switching tube PWM voltage transformations of secondary circuit through the 11st
Switching tube variable voltage control power and charge a battery it is equal flexibly select, at this time each main circuit and output circuit as each phase around
Leadage circuit work when group electric operation, energy regeneration, specific mode switching control is identical, and difference is only according to switching magnetic-resistance
The rotor position information of motor carries out opening excitation and shutdown excitation.
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| CN110212827A (en) * | 2019-06-12 | 2019-09-06 | 中国计量大学 | A kind of switch reluctance generator converter system |
| CN110212825A (en) * | 2019-06-12 | 2019-09-06 | 中国计量大学 | From the switch reluctance generator converter system for becoming generating voltage self-charging |
| CN113889998A (en) * | 2021-10-15 | 2022-01-04 | 中国计量大学 | Direct-current wind power plant switch reluctance motor current transformation system and control method thereof |
| CN113889998B (en) * | 2021-10-15 | 2023-09-22 | 中国计量大学 | DC wind power plant switch reluctance motor conversion system and control method thereof |
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| CN108667383B (en) | 2019-11-15 |
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