CN109256811A - A kind of shaft generator system peculiar to vessel and its control method - Google Patents
A kind of shaft generator system peculiar to vessel and its control method Download PDFInfo
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- CN109256811A CN109256811A CN201811367754.5A CN201811367754A CN109256811A CN 109256811 A CN109256811 A CN 109256811A CN 201811367754 A CN201811367754 A CN 201811367754A CN 109256811 A CN109256811 A CN 109256811A
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- switching tube
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- 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
- H02M1/14—Arrangements for reducing ripples from dc input or output
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a kind of shaft generator systems peculiar to vessel, comprising: axle generator；Harmonic suppression apparatus, input terminal are connected with the output end of axle generator；The input terminal of fairing is connected with the output end of harmonic suppression apparatus, and the ac voltage rectifier for exporting to harmonic suppression apparatus is DC voltage；The input terminal of high step-up ratio Z-source inverter is connected with the output end of fairing, and output end is connected with network of ship, for the DC voltage received to be passed through SVPWM pulsewidth modulation into alternating current, and filters out voltage harmonic.And, provide a kind of shaft generator system control method peculiar to vessel, using the embodiment of the present invention, using high step-up ratio Z-source inverter, by the straight-through duty cycle adjustment output voltage for adjusting SVPWM, the boost capability of inverter is improved, thus axle generator is made to be able to bear larger range of engine speed fluctuation, improves the service efficiency of axle generator.
Description
Technical field
The present invention relates to shaft generator machine control system technical field more particularly to a kind of shaft generator system peculiar to vessel and
Its control method.
Background technique
The power supply mode of ship is mainly diesel-driven generator power supply, and there are also the axis bands that ship uses marine main engine traction
Generator powered, the axle generator can reduce the use of diesel-driven generator, play the purpose of energy-saving and emission-reduction.But ship navigates
Between the departure date, when engine speed is unstable, output voltage and the frequency fluctuation that will lead to axle generator are larger and can not normally supply
Electricity, or even electrical equipment can be damaged.
Currently, ship axle generator mostly uses greatly current source inverter or voltage source inverter, both inversions
Device or it is booster type inverter or is voltage-dropping type inverter do not have while the ability of buck, which greatly limits axis
Use with generator.
Summary of the invention
The purpose of the present invention is to provide a kind of shaft generator system peculiar to vessel and its control methods, it is intended to be arrived by exchange
Direct current arrives the inversion link of exchange again, defeated by the straight-through duty cycle adjustment for adjusting SVPWM using high step-up ratio Z-source inverter
Voltage out, improves the boost capability of inverter, thus axle generator is made to be able to bear larger range of engine speed fluctuation,
Improve the service efficiency of axle generator.
To achieve the goals above, the present invention provides a kind of shaft generator system peculiar to vessel, comprising:
Axle generator；
Harmonic suppression apparatus, input terminal are connected with the output end of the axle generator, for reducing the axis band hair
The harmonic wave of motor output voltage；
Fairing, input terminal are connected with the output end of the harmonic suppression apparatus, for filling to the harmonics restraint
The ac voltage rectifier for setting output is DC voltage；
High step-up ratio Z-source inverter, input terminal are connected with the output end of the fairing, output end and network of ship
It is connected, for the DC voltage received to be passed through SVPWM pulsewidth modulation into alternating current, and filters out voltage harmonic.
In a kind of implementation of the invention, the high step-up ratio Z-source inverter, comprising: Z source network, inverter circuit,
LCL filter；
The Z source network is connected with the inverter circuit, and the inverter circuit is connected with the LCL filter；
The Z source network includes: first diode, the second diode, third diode, the 4th diode, the five or two pole
Pipe, the 6th diode, the 7th diode, the 8th diode, the 9th diode, the tenth diode, the 11st diode, the 12nd
Diode, the 13rd diode, first capacitor, the second capacitor, the first inductance, the second inductance, third inductance, the 4th inductance,
Five inductance, the 6th inductance；
The fairing output end anode be connected with the anode of first diode, the cathode of the first diode and
The anode of second diode, the first end of first inductance, the anode of the first capacitor are connected, the two or two pole
The cathode of pipe is connected by second inductance with the anode of the 7th diode, the cathode of the 7th diode with it is described
The first end of inverter circuit is connected；
The second end of first inductance is connected with the anode of the anode of the third diode, the 4th diode,
The cathode of the third diode is connected with the anode of the 5th diode, the cathode and the described 6th of the 4th diode
The anode of diode is connected, and the of the cathode of the cathode of the 5th diode and the 6th diode and the third inductance
One end is connected, and the second end of the third inductance is connected with the anode of second capacitor, the cathode of second capacitor and institute
The first end for stating the 6th inductance is connected, the second end of the 6th inductance respectively with the cathode of the 11st diode, described
The cathode of 12nd diode is connected；
The anode of 11st diode is connected with the cathode of the 9th diode, the sun of the 12nd diode
Pole is connected with the cathode of the tenth diode, the anode of the anode of the 9th diode and the tenth diode with it is described
The first end of 4th inductance is connected, and the 4th inductance second end is connected with the cathode of the first capacitor；
The cathode of the fairing output end is connected with the cathode of the 13rd diode, the 13rd diode
Anode be connected with the cathode of the 8th diode by the 5th inductance, the anode of the 8th diode is electric with the inversion
The second end on road is connected.
In a kind of implementation of the invention, the inverter circuit includes: that first switch tube, second switch, third are opened
Guan Guan, the 4th switching tube, the 5th switching tube, the 6th switching tube, the 14th diode, the 15th diode, the 16th diode,
17th diode, the 18th diode, the 19th diode；
The collector of the first switch tube is connected with the cathode of the 14th diode, the hair of the first switch tube
Emitter-base bandgap grading is connected with the anode of the 14th diode；
The collector of the second switch is connected with the cathode of the 15th diode, the hair of the second switch
Emitter-base bandgap grading is connected with the anode of the 15th diode；
The collector of the third switching tube is connected with the cathode of the 16th diode, the hair of the third switching tube
Emitter-base bandgap grading is connected with the anode of the 16th diode；
The collector of 4th switching tube is connected with the cathode of the 17th diode, the hair of the 4th switching tube
Emitter-base bandgap grading is connected with the anode of the 17th diode；
The collector of 5th switching tube is connected with the cathode of the 18th diode, the hair of the 5th switching tube
Emitter-base bandgap grading is connected with the anode of the 18th diode；
The collector of 6th switching tube is connected with the cathode of the 19th diode, the hair of the 6th switching tube
Emitter-base bandgap grading is connected with the anode of the 19th diode；
The cathode of 7th diode is switched with the first switch tube, the third switching tube, the described 5th respectively
The collector of pipe is connected；
The anode of 8th diode is switched with the second switch, the 4th switching tube, the described 6th respectively
The emitter of pipe is connected；
The emitter of the first switch tube is connected with the collector of the second switch, the hair of the third switching tube
Emitter-base bandgap grading is connected with the collector of the 4th switching tube, the emitter of the 5th switching tube and the current collection of the 6th switching tube
Extremely it is connected.
In a kind of implementation of the invention, the LCL filter include: the 7th inductance, the 8th inductance, the 9th inductance,
Tenth inductance, the 11st inductance, the 12nd inductance, third capacitor, the 4th capacitor, the 5th capacitor；
The emitter of the first switch tube is connected with the first end of the 7th inductance, the 7th inductance LU1Second
End is connected with the first end of the 8th inductance, first phase output terminal of the second end of the 8th inductance as inverter bridge；
The emitter of the third switching tube is connected with the first end of the 9th inductance, the second end of the 9th inductance
It is connected with the first end of the tenth inductance, second phase output terminal of the second end of the tenth inductance as inverter bridge；
The emitter of 5th switching tube is connected with the first end of the 11st inductance, the 11st inductance LW1's
Second end is connected with the first end of the 12nd inductance, and the second end of the 12nd inductance is defeated as the third phase of inverter bridge
Outlet；
The anode of the third capacitor is connected with the second end of the 7th inductance；
The anode of 4th capacitor is connected with the second end of the 9th inductance；
The anode of 5th capacitor is connected with the second end of the 11st inductance；
The cathode of the third capacitor, the 4th capacitor cathode be connected with the cathode of the 5th capacitor.
In a kind of implementation of the invention, the harmonic suppression apparatus is made of inductance.
In a kind of implementation of the invention, the fairing includes full-bridge rectification unit and capacitor filtering unit, and
The full-bridge rectification unit and the capacitor filtering unit are in parallel.
In addition, the embodiment of the invention also provides a kind of control method of shaft generator system peculiar to vessel, the method packet
Include step:
Reference voltage is compared with the source Z capacitance voltage, and the input as sliding mode controller；
The output valve of the sliding mode controller carries out through connect signal calculating, obtains through connect signal value；
The through connect signal value is combined with inverter side modulation control signal, calculates the control signal of switching tube；
Inverter bridge is controlled based on the control signal.
A kind of shaft generator system peculiar to vessel provided by the invention and its control method, have the beneficial effect that:
With the increase of straight-through duty ratio, boost capability is greater than to be passed the high step-up ratio Z-source inverter of the embodiment of the present invention
It unites Z-source inverter, and in the case where identical straight-through duty ratio, high step-up ratio Z-source inverter boost capability that the present invention uses
It greatly reinforces, more adaptation DC input voitage wide fluctuations；
AC-to DC due to using AC-DC-AC arrives the inversion link of exchange again and inverter has used high boosting
The boost capability of inverter is improved by the straight-through duty cycle adjustment output voltage of adjusting SVPWM than Z-source inverter, thus
So that axle generator is able to bear larger range of engine speed fluctuation, improves the service efficiency of axle generator.
Detailed description of the invention
Fig. 1 is the system construction drawing of shaft generator system peculiar to vessel of the embodiment of the present invention.
Fig. 2 is the first circuit diagram of shaft generator system peculiar to vessel of the embodiment of the present invention.
Fig. 3 is second of circuit diagram of shaft generator system peculiar to vessel of the embodiment of the present invention.
Fig. 4 is the third circuit diagram of shaft generator system peculiar to vessel of the embodiment of the present invention.
Fig. 5 is the effect diagram of shaft generator system peculiar to vessel of the embodiment of the present invention.
Fig. 6 is the flow diagram of shaft generator system peculiar to vessel of the embodiment of the present invention.
Fig. 7 is a kind of embodiment schematic diagram of shaft generator system peculiar to vessel of the embodiment of the present invention.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
Please refer to Fig. 1-7.It should be noted that only the invention is illustrated in a schematic way for diagram provided in the present embodiment
Basic conception, only shown in schema then with related component in the present invention rather than component count, shape when according to actual implementation
Shape and size are drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its component cloth
Office's kenel may also be increasingly complex.
Specifically, as shown in Figure 1, the embodiment of the invention provides a kind of shaft generator system peculiar to vessel, the system packet
It includes:
Axle generator 11；
Harmonic suppression apparatus 12, input terminal is connected with the output end of the axle generator 11, for reducing the axis
Harmonic wave with 11 output voltage of generator；
Fairing 13, input terminal are connected with the output end of the harmonic suppression apparatus 12, for pressing down to the harmonic wave
The ac voltage rectifier that device 12 processed exports is DC voltage；
High step-up ratio Z-source inverter 14, input terminal are connected with the output end of the fairing 13, output end and ship
Power grid is connected, and for the DC voltage received to be passed through SVPWM pulsewidth modulation into alternating current, and filters out voltage harmonic.
In concrete implementation, harmonic suppression apparatus is harmonics restraint reactor, and generator is axle generator, and reactor is
For reducing the harmonic wave of axle generator output voltage, the power factor of rectifier is promoted；Fairing is rectifier, and being used for will
The AC rectification of axle generator output is smooth direct current；High step-up ratio Z-source inverter is for passing through direct current
SVPWM pulsewidth modulation filters out voltage harmonic at alternating current, and by LCL filter, and system is made to export pure sine voltage.
In a kind of implementation of the invention, as shown in Fig. 2, the high step-up ratio Z-source inverter 14, comprising: the source Z net
Network, inverter circuit, LCL filter；
The Z source network is connected with the inverter circuit, and the inverter circuit is connected with the LCL filter；
The Z source network includes: first diode D0, the second diode D1, third diode D2, the 4th diode D3,
Five diode D4, the 6th diode D5, the 7th diode D6, the 8th diode D7, the 9th diode D8, the tenth diode D9,
11 diode D10, the 12nd diode D11, the 13rd diode D12, first capacitor C1, the second capacitor C2, the first inductance L1、
Second inductance L2, third inductance L3, the 4th inductance L4, the 5th inductance L5, the 6th inductance L6；
Anode and the first diode D of the fairing output end0Anode be connected, the first diode D0Yin
Pole and the second diode D1Anode, the first inductance L1First end, the first capacitor C1Anode be connected, institute
State the second diode D1Cathode by the second inductance L2, with the 7th diode D6Anode be connected, the 7th diode
D6Cathode be connected with the first end of inverter circuit；
The first inductance L1Second end and the third diode D2Anode, the 4th diode D3Anode
It is connected, the third diode D2Cathode and the 5th diode D4Anode be connected, the 4th diode D3Cathode
With the 6th diode D5Anode be connected, the 5th diode D4Cathode and the 6th diode D5Cathode with
The third inductance L3First end be connected, the third inductance L3Second end and the second capacitor C2Anode be connected, institute
State the second capacitor C2Cathode and the 6th inductance L6First end be connected, the 6th inductance L6Second end respectively with institute
State the 11st diode D10Cathode, the 12nd diode D11Cathode be connected；
The 11st diode D10Anode and the 9th diode D8Cathode be connected, the 12nd diode
D11Anode and the tenth diode D9Cathode be connected, the 9th diode D8Anode and the tenth diode D9
Anode and the 4th inductance L4First end be connected, the 4th inductance L4Second end and the first capacitor C1Cathode
It is connected；
The cathode of the fairing output end and the 13rd diode D12Cathode be connected, the 13rd pole
Pipe D12Anode pass through the 5th inductance L5With the 8th diode D7Cathode be connected, the 8th diode D7Anode with
The second end of the inverter circuit is connected.
When working in pass-through state, diode D0、D1、D3、D4、D6、D7、D9、D10、D12Conducting, diode D2、D5、D8、
D11Cut-off, inductance L1、L2、L3In parallel connection, inductance L4、L5、L6Storage energy is carried out in parallel connection, and by inductance.Instead
It, is when working in non-pass-through state, diode D2、D5、D8、D11Conducting, diode D1、D3、D4、D6、D7、D9、D10、D12It cuts
Only, inductance L1、L2、L3In series connection, inductance L4、L5、L6In series connection, inductance releases energy
In a kind of implementation of the invention, as shown in Fig. 2, the inverter circuit includes: first switch tube Q1, second open
Close pipe Q2, third switching tube Q3, the 4th switching tube Q4, the 5th switching tube Q5, the 6th switching tube Q6, the 14th diode D21, the tenth
Five diode D22, the 16th diode D23, the 17th diode D24, the 18th diode D25, the 19th diode D26；
The first switch tube Q1Collector and the 14th diode D21Cathode be connected, the first switch tube
Q1Emitter and the 14th diode D21Anode be connected；
The second switch Q2Collector and the 15th diode D22Cathode be connected, the second switch
Q2Emitter and the 15th diode D22Anode be connected；
The third switching tube Q3Collector and the 16th diode D23Cathode be connected, the third switching tube
Q3Emitter and the 16th diode D23Anode be connected；
The 4th switching tube Q4Collector and the 17th diode D24Cathode be connected, the 4th switching tube
Q4Emitter and the 17th diode D24Anode be connected；
The 5th switching tube Q5Collector and the 18th diode D25Cathode be connected, the 5th switching tube
Q5Emitter and the 18th diode D25Anode be connected；
The 6th switching tube Q6Collector and the 19th diode D26Cathode be connected, the 6th switching tube
Q6Emitter and the 19th diode D26Anode be connected；
The 7th diode D6Cathode respectively with the first switch tube Q1, the third switching tube Q3, the described 5th
Switching tube Q5Collector be connected；
The 8th diode D7Anode described in second switch Q2, the 4th switching tube Q4, the 6th switching tube
Q6Emitter be connected；
The first switch tube Q1Emitter and the second switch Q2Collector be connected, the third switching tube
Q3Emitter and the 4th switching tube Q4Collector be connected, the 5th switching tube Q5Emitter opened with the described 6th
Close pipe Q6Collector be connected.
The inverter circuit of the embodiment of the present invention is IGBT three-phase inverter bridge circuit, each IGBT is by switching tube and correspondence
Diode composition, one end circuit connection is in capacitor C2Anode, other end circuit connection is in capacitor C1Cathode.
In a kind of implementation of the invention, the LCL filter includes: the 7th inductance LU1, the 8th inductance LU2, the 9th
Inductance LV1, the tenth inductance LV2, the 11st inductance LW1, the 12nd inductance LW2, third capacitor CU, the 4th capacitor CV, the 5th capacitor CW；
The first switch tube Q1Emitter and the 7th inductance LU1First end be connected, the 7th inductance LU1's
Second end and the 8th inductance LU2First end be connected, the 8th inductance LU2First phase of the second end as inverter bridge
Output end；
The third switching tube Q3Emitter and the 9th inductance LV1First end be connected, the 9th inductance LV1's
Second end and the tenth inductance LV2First end be connected, the tenth inductance LV2Second phase of the second end as inverter bridge
Output end；
The 5th switching tube Q5Emitter and the 11st inductance LW1First end be connected, the 11st inductance
LW1Second end and the 12nd inductance LW2First end be connected, the 12nd inductance LW2Second end as inverter bridge
Third phase output terminal；
The third capacitor CUAnode with the 7th inductance LU1Second end be connected；
The 4th capacitor CVAnode with the 9th inductance LV1Second end be connected；
The 5th capacitor CWAnode with the 11st inductance LW1Second end be connected；
The third capacitor CUCathode, the 4th capacitor CVCathode and the 5th capacitor CWCathode be connected.
In the embodiment of the present invention, as shown in Fig. 2, inductance LU1One end is connected with inverter bridge U phase output terminal, inductance LU1Separately
One end and capacitor CUAnode and inductance LU2One end is connected, inductance LV1One end is connected with inverter bridge V phase output terminal, inductance LV1It is another
End and capacitor CVAnode and inductance LV2One end is connected, inductance LW1One end is connected with inverter bridge W phase output terminal, inductance LW1The other end
With capacitor CWAnode and inductance LW2One end is connected, capacitor CU、CV、CWCathode is connected.
In a kind of implementation of the invention, as shown in figure 3, the harmonic suppression apparatus is made of inductance, input terminal
U, V, W pass through tri- end U, V, W that inductance filters out output three-phase after harmonic wave respectively.
In a kind of implementation of the invention, as shown in figure 4, the fairing includes full-bridge rectification unit and capacitor filter
Wave unit, and the full-bridge rectification unit and the capacitor filtering unit are in parallel.Per all the way including two concatenated diodes, altogether
It counts three tunnels and forms parallel-connection structure, form full bridge rectifier, be then filtered by capacitive filter in parallel, which is
The prior art, the embodiment of the present invention do not repeat them here.
As shown in figure 5, for the embodiment of the present invention high step-up ratio Z-source inverter and traditional Z-source inverter voltage gain with
Relations comparison chart between straight-through duty ratio, the relationship of traditional Z-source inverter voltage gain and straight-through duty ratio are as follows:
The relationship of high step-up ratio Z-source inverter voltage gain and straight-through duty ratio are as follows:
Wherein, B is voltage gain, and D is straight-through duty ratio.
Curve 1 in Fig. 5 is the function curve of high step-up ratio Z-source inverter voltage gain B and straight-through duty ratio D, curve 2
For the function curve of traditional Z-source inverter voltage gain B and straight-through duty ratio D, it can be seen that with the increase of straight-through duty ratio,
The boost capability of high step-up ratio Z-source inverter is greater than traditional Z-source inverter, and in the case where identical straight-through duty ratio, this hair
The bright high step-up ratio Z-source inverter boost capability used greatly reinforces, more adaptation DC input voitage wide fluctuations.
In addition, as shown in fig. 6, the embodiment of the invention also provides a kind of control method of shaft generator system peculiar to vessel,
The method includes the steps:
Reference voltage is compared by S601 with the source Z capacitance voltage, and the input as sliding mode controller；
The output valve of S602, the sliding mode controller carry out through connect signal calculating, obtain through connect signal value；
The through connect signal value is combined with inverter side modulation control signal, calculates the control signal of switching tube by S603；
S604 controls inverter bridge based on the control signal.
As shown in fig. 7, being the control block diagram of high step-up ratio Z-source inverter, by the link etc. of axle generator to rectifier
Effect is a DC source, and when ship's navigation is when high sea weather, the revolving speed of host can generate biggish fluctuation, so that axis band is sent out
Motor output voltage is unstable, and the high step-up ratio Z-source inverter that the present invention uses uses the capacitance voltage closed-loop control of the source Z, reference
Voltage VrefWith the source high step-up ratio Z capacitance voltage VCMore afterwards as the input of sliding mode controller, the output conduct of sliding mode controller
The generation for controlling through connect signal, through connect signal is finally combined, can obtain switching tube with inverter side modulation control signal
Signal is controlled, inverter bridge is controlled, to control grid-connected current, so that grid-connected voltage does not fluctuate.Cutting-in control algorithm, straight-through letter
Number calculate and SVPWM generating portion those skilled in the art can realize that the embodiment of the present invention is led herein by conventional means
Entire shaft generator system peculiar to vessel is made up of high step-up ratio Z-source inverter, without repeating other aided algorithms.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (7)
1. a kind of shaft generator system peculiar to vessel, which is characterized in that the system comprises:
Axle generator；
Harmonic suppression apparatus, input terminal are connected with the output end of the axle generator, for reducing the axle generator
The harmonic wave of output voltage；
Fairing, input terminal are connected with the output end of the harmonic suppression apparatus, for defeated to the harmonic suppression apparatus
Ac voltage rectifier out is DC voltage；
High step-up ratio Z-source inverter, input terminal are connected with the output end of the fairing, output end and network of ship phase
Even, for the DC voltage received to be passed through SVPWM pulsewidth modulation into alternating current, and voltage harmonic is filtered out.
2. a kind of shaft generator system peculiar to vessel according to claim 1, which is characterized in that the source the high step-up ratio Z is inverse
Become device, comprising: Z source network, inverter circuit, LCL filter；
The Z source network is connected with the inverter circuit, and the inverter circuit is connected with the LCL filter；
The Z source network includes: first diode (D0), the second diode (D1), third diode (D2), the 4th diode
(D3), the 5th diode (D4), the 6th diode (D5), the 7th diode (D6), the 8th diode (D7), the 9th diode
(D8), the tenth diode (D9), the 11st diode (D10), the 12nd diode (D11), the 13rd diode (D12), first electricity
Hold (C1), the second capacitor (C2), the first inductance (L1), the second inductance (L2), third inductance (L3), the 4th inductance (L4), the 5th electricity
Feel (L5), the 6th inductance (L6)；
Anode and the first diode (D of the fairing output end0) anode be connected, the first diode (D0) yin
Pole and the second diode (D1) anode, the first inductance (L1) first end, the first capacitor (C1) positive phase
Even, the second diode (D1) cathode pass through the second inductance (L2) and the 7th diode (D6) anode be connected,
7th diode (the D6) cathode be connected with the first end of the inverter circuit；
First inductance (the L1) second end and the third diode (D2) anode, the 4th diode (D3) sun
Extremely it is connected, the third diode (D2) cathode and the 5th diode (D4) anode be connected, the 4th diode
(D3) cathode and the 6th diode (D5) anode be connected, the 5th diode (D4) cathode and the described 6th 2
Pole pipe (D5) cathode and the third inductance (L3) first end be connected, the third inductance (L3) second end and described the
Two capacitor (C2) anode be connected, the second capacitor (C2) cathode and the 6th inductance (L6) first end be connected, it is described
6th inductance (L6) second end respectively with the 11st diode (D10) cathode, the 12nd diode (D11) yin
Extremely it is connected；
The 11st diode (D10) anode and the 9th diode (D8) cathode be connected, the 12nd diode
(D11) anode and the tenth diode (D9) cathode be connected, the 9th diode (D8) anode and the described 12nd
Pole pipe (D9) anode and the 4th inductance (L4) first end be connected, the 4th inductance (L4) second end and described first
Capacitor (C1) cathode be connected；
The cathode of the fairing output end and the 13rd diode (D12) cathode be connected, the 13rd diode
(D12) anode pass through the 5th inductance (L5) and the 8th diode (D7) cathode be connected, the 8th diode (D7)
Anode is connected with the second end of the inverter circuit.
3. a kind of shaft generator system peculiar to vessel according to claim 2, which is characterized in that the inverter circuit includes:
First switch tube (Q1), second switch (Q2), third switching tube (Q3), the 4th switching tube (Q4), the 5th switching tube (Q5), the 6th
Switching tube (Q6), the 14th diode (D21), the 15th diode (D22), the 16th diode (D23), the 17th diode
(D24), the 18th diode (D25), the 19th diode (D26)；
First switch tube (the Q1) collector and the 14th diode (D21) cathode be connected, the first switch tube
(Q1) emitter and the 14th diode (D21) anode be connected；
Second switch (the Q2) collector and the 15th diode (D22) cathode be connected, the second switch
(Q2) emitter and the 15th diode (D22) anode be connected；
Third switching tube (the Q3) collector and the 16th diode (D23) cathode be connected, the third switching tube
(Q3) emitter and the 16th diode (D23) anode be connected；
4th switching tube (the Q4) collector and the 17th diode (D24) cathode be connected, the 4th switching tube
(Q4) emitter and the 17th diode (D24) anode be connected；
5th switching tube (the Q5) collector and the 18th diode (D25) cathode be connected, the 5th switching tube
(Q5) emitter and the 18th diode (D25) anode be connected；
6th switching tube (the Q6) collector and the 19th diode (D26) cathode be connected, the 6th switching tube
(Q6) emitter and the 19th diode (D26) anode be connected；
7th diode (the D6) cathode respectively with the first switch tube (Q1), the third switching tube (Q3), described
Five switching tube (Q5) collector be connected；
8th diode (the D7) anode respectively with the second switch (Q2), the 4th switching tube (Q4), described
Six switching tube (Q6) emitter be connected；
First switch tube (the Q1) emitter and the second switch (Q2) collector be connected, the third switching tube
(Q3) emitter and the 4th switching tube (Q4) collector be connected, the 5th switching tube (Q5) emitter with it is described
6th switching tube (Q6) collector be connected.
4. a kind of shaft generator system peculiar to vessel according to claim 3, which is characterized in that the LCL filter includes:
7th inductance (LU1), the 8th inductance (LU2), the 9th inductance (LV1), the tenth inductance (LV2), the 11st inductance (LW1), the 12nd electricity
Feel (LW2), third capacitor (CU), the 4th capacitor (CV), the 5th capacitor (CW)；
First switch tube (the Q1) emitter and the 7th inductance (LU1) first end be connected, the 7th inductance (LU1)
Second end and the 8th inductance (LU2) first end be connected, the 8th inductance (LU2) second end as inverter bridge
First phase output terminal；
Third switching tube (the Q3) emitter and the 9th inductance (LV1) first end be connected, the 9th inductance (LV1)
Second end and the tenth inductance (LV2) first end be connected, the tenth inductance (LV2) second end as inverter bridge
Second phase output terminal；
5th switching tube (the Q5) emitter and the 11st inductance (LW1) first end be connected, the 11st inductance
(LW1) second end and the 12nd inductance (LW2) first end be connected, the 12nd inductance (LW2) second end conduct
The third phase output terminal of inverter bridge；
Third capacitor (the CU) anode with the 7th inductance (LU1) second end be connected；
4th capacitor (the CV) anode with the 9th inductance (LV1) second end be connected；
5th capacitor (the CW) anode with the 11st inductance (LW1) second end be connected；
Third capacitor (the CU) cathode, the 4th capacitor (CV) cathode and the 5th capacitor (CW) cathode be connected.
5. a kind of shaft generator system peculiar to vessel according to claim 1-4, which is characterized in that the harmonic wave suppression
Device processed is made of inductance.
6. a kind of shaft generator system peculiar to vessel according to claim 1-4, which is characterized in that the rectification dress
It sets including full-bridge rectification unit and capacitor filtering unit, and the full-bridge rectification unit and the capacitor filtering unit are in parallel.
7. a kind of control method of shaft generator system peculiar to vessel, which is characterized in that the method includes the steps:
Reference voltage is compared with the source Z capacitance voltage, and the input as sliding mode controller；
The output valve of the sliding mode controller carries out through connect signal calculating, obtains through connect signal value；
The through connect signal value is combined with inverter side modulation control signal, calculates the control signal of switching tube；
Inverter bridge is controlled based on the control signal.
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| CN102751896A (en) * | 2012-07-03 | 2012-10-24 | 哈尔滨工业大学（威海） | Through physical separation-type Z-source inverter with high booster multiple |
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| CN106787791A (en) * | 2016-12-14 | 2017-05-31 | 迅昌电气（上海）有限公司 | A kind of constant frequency and constant voltage band power storage electric power system peculiar to vessel |
| CN107834881A (en) * | 2017-11-13 | 2018-03-23 | 齐鲁工业大学 | A kind of high boost capability type Z-source inverter topological structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102751896A (en) * | 2012-07-03 | 2012-10-24 | 哈尔滨工业大学（威海） | Through physical separation-type Z-source inverter with high booster multiple |
| CN105406751A (en) * | 2015-12-30 | 2016-03-16 | 哈尔滨工业大学 | Three-winding coupling inductance type Z-source inverter circuit with high step-up ratio ability |
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