CN109995283A - A kind of electricity generation system - Google Patents
A kind of electricity generation system Download PDFInfo
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- CN109995283A CN109995283A CN201910264417.1A CN201910264417A CN109995283A CN 109995283 A CN109995283 A CN 109995283A CN 201910264417 A CN201910264417 A CN 201910264417A CN 109995283 A CN109995283 A CN 109995283A
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Classifications
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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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/38—Self-excitation by current derived from rectification of both output voltage and output current of generator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/25—Special adaptation of control arrangements for generators for combustion engines
Abstract
A kind of electricity generation system, by dc generator, diesel engine, speed changer, switch reluctance generator system composition, it is coaxially connected between them, switch reluctance generator system is by switch reluctance generator current transformer, controller, detection device composition, various information is to controller in detection device detection switch reluctance generator current transformer, each switching tube in controller output control switch reluctance generator current transformer, switch reluctance generator current transformer is by eight switching tubes, 20 diodes, five capacitors, two reactance, three transformers, four phase windings composition, every two phase winding constitutes the excitation and power generation that the current transformer synthesized with single-phase inversion circuit is used for switch reluctance generator, in conjunction with rotor position information, pass through the Time-sharing control to eight switching tubes, obtain the output of multichannel power of alterating and direct current, power quality is higher, it is suitble to It is applied in the stand alone generating system field in field non-transformer area.
Description
Technical field
The present invention relates to electricity generation system fields, and in particular to a kind of switch reluctance generator of independent diesel dragging
System and dc generator combine more powers of alterating and direct current output of complementary simple multifunctional unsteady flow structure electricity generation system and its
Control method.
Background technique
On the movable island of someone that some no power grids reach and plateau depopulated zone and desert etc., regional field engineering is built
If requiring power supply, there are also the backup power sources of important departments some in city, mostly use the generating set of diesel greatly, but
It is that they can only often export power supply constant all the way.
Switched reluctance machines structure is simple, at low cost, and without winding on rotor, the pressure that radiates is small, as generator, has phase
When big application value.
In the occasion that numerous diesel generator groups is applied, often both need to illuminate, it is also desirable to drag manufacturing machine, very
To the operations such as engineering electrical welding are also needed, it can only be equipped with different secondary power supplies in practice in case needs.
The current transformer of switch reluctance generator system is the heart of its work, if in order to realize different functions, difference
Power supply output, generally require to design different converter systems, the use of a large amount of switching tubes, especially HF switch, greatly
Control complexity is increased, switching loss is increased, also increases cost, reduce reliability；In addition, switch reluctance generator
Field power supply all the way is needed when work, tradition self-excitation mode configuration is simple but out-put supply fluctuation is big, and work is unstable, separate excitation mode
It is lower to need bulky battery, manual maintenance workload is also added, and be placed in field replacement battery difficulty for a long time
It talks about also unrealistic；So introducing diesel generating set to switch reluctance generator, there are larger challenges, and this occasion also needs
Converter system simple structure, convenient control as far as possible is wanted, manual maintenance workload, switching loss its reliability of raising low as far as possible are reduced
Deng.
Summary of the invention
According to above background technique, present invention proposes a kind of simple structure, convenient control, loss low cost it is low,
Complementary type dc generator-switch reluctance generator system diesel machine that utilization rate is high, multichannel power of alterating and direct current exports
The structure and control method of group, are suitable for the diesel machine set system of various Independent Power Generations.
The technical solution of the present invention is as follows:
A kind of electricity generation system is made of, technology dc generator, diesel engine, speed changer, switch reluctance generator system
It is characterized in, the dc generator, the diesel engine, the speed changer, the switch reluctance generator system are coaxially connected, altogether
Dynamic rotation operation is generated with by diesel engine, wherein speed changer is speed increaser.
Switch reluctance generator system is made of switch reluctance generator current transformer, controller, detection device, and technology is special
Sign is that the controller output control signal drives each switching tube in the switch reluctance generator current transformer, the inspection
It surveys in device detection switch reluctance generator system in all kinds of run signal and input controller.
Switch reluctance generator current transformer includes dc generator output capacitor, the first phase winding, the second phase winding,
Three-phase windings, the 4th phase winding, first capacitor device, the second capacitor, third capacitor, the 4th capacitor, first switch tube,
Two switching tubes, third switching tube, the 4th switching tube, the 5th switching tube, the 6th switching tube, the 7th switching tube, the 8th switching tube,
One diode, the second diode, third diode, the 4th diode, the 5th diode, the 6th diode, the 7th diode,
Eight diodes, the 9th diode, the tenth diode, the 11st diode, the 12nd diode, the 13rd diode, the 14th
Diode, the 15th diode, the 16th diode, the 17th diode, the 18th diode, the 19th diode, second
Ten diodes, the first transformer, the second transformer, third transformer, the first reactance, the second reactance composition, technical characteristic is,
The dc generator output capacitor connection dc generator exports both ends, and dc generator output capacitor anode connects simultaneously
Connect first phase winding one end, second phase winding one end, third phase winding one end, the 4th phase winding one
End, the first phase winding other end connect the 6th diode anode, and the second phase winding other end connects the 5th diode
Anode, the third phase winding other end connect the 12nd diode anode, the 4th phase winding other end connection the described 11st
Diode anode, the 6th diode cathode connect the third switch tube cathode, the 4th the switch tube anode, the described 3rd 2
Pole pipe anode, the 4th diode cathode, described first transformer first winding one end, the 5th diode cathode connection described in
First switch tube cathode, the second switch tube anode, the first diode anode, second diode cathode, first
The transformer first winding other end, the 12nd diode cathode connection the 7th switch tube cathode, the 8th switching tube sun
Pole, the 9th diode anode, the tenth diode cathode, described second transformer first winding one end, the 11st
Pole pipe cathode connection the 5th switch tube cathode, the 6th the switch tube anode, the 7th diode anode, the described 8th
Diode cathode, the second transformer first winding other end, first switch tube anode, first diode cathode, third switching tube
Anode, the connection of third diode cathode, and connect with the first capacitor device anode, the 5th switch tube anode, the 7th diode
Cathode, the 7th switch tube anode, the connection of the 9th diode cathode, and connect with second capacitor anode, dc generator
Output capacitor cathode connects first capacitor device cathode, second switch tube cathode, the second diode anode, the 4th switching tube simultaneously
Cathode, the 4th diode anode, the second capacitor anode, the 6th switch tube cathode, the 8th diode anode, the 8th switching tube yin
Pole, the tenth diode anode, first transformer secondary winding one end connect the 13rd diode anode and the described 14th
Diode cathode, the first transformer secondary winding other end connect the 15th diode anode and the 16th diode yin
Pole, the first transformer first winding and secondary winding Same Name of Ends are symmetrical, and the 13rd diode cathode connects the 15th diode yin
Pole, the third capacitor anode, first reactance one end, second transformer secondary winding one end connection the described 17th
Pole pipe anode and the 18th diode cathode, the second transformer secondary winding other end connect the 19th diode sun
Pole and the 20th diode cathode, the second transformer first winding and secondary winding Same Name of Ends are symmetrical, the 17th diode cathode
Connect the 19th diode cathode, the 4th capacitor anode, second reactance one end, the connection of the 14th diode anode
16th diode anode, third capacitor anode, the 18th diode anode, the 20th diode anode, the 4th capacitor
Cathode, the first reactance other end connect described third transformer first winding one end, and the second reactance other end connects third transformation
Device secondary winding one end, the third transformer first winding other end is connected with the third transformer secondary winding other end, and is
The connection of different name end.
First capacitor device and the second capacitor are identical, and third capacitor and the 4th capacitor are identical, the first transformer and
Two transformers are identical, and all eight switching tubes are identical, and third transformer first winding is identical with secondary winding structure, the number of turns phase
Deng the first reactance is identical with the second reactance.
A kind of control method of electricity generation system, technical characteristic are that the direct current energy that dc generator issues exports outward
While as DC power supply, as the field power supply of switch reluctance generator current transformer in switch reluctance generator system, i.e.,
The field power supply in excitation stage when each phase winding of switch reluctance generator works.
Rotor position information, the phase winding electricity of the detection device detection switch reluctance generator of switch reluctance generator system
Stream information, three transformer winding current informations and as input to the controller, controller output drive signal is to switching magnetic-resistance
Eight switching tubes in generator converter.
The regulation method of switch reluctance generator current transformer, technical characteristic is, before switch reluctance generator is devoted oneself to work,
Whole switching tubes are in an off state；
According to rotor position information, when the first phase winding need to devote oneself to work, closure first switch tube and the 4th first is opened
Guan Guan, while the first phase winding is electrically charged excitation, first capacitor device is exported to the first transformer discharge, is believed according to rotor-position
Breath and the first phase winding current information, disconnect the 4th switching tube at the end of the first phase winding excitation stage, and first switch tube is adopted
With PWM mode, the first phase winding enters power generating stage, and the first phase winding energy storage is discharged to first capacitor device, the first transformer one
Secondary winding continues to export electric energy to the first transformer secondary winding side in the closure that first switch tube PWM is controlled, the when disconnection
One transformer first winding also charges to first capacitor device, and the duty ratio selection principle of first switch tube PWM control is: when adjacent
When what is devoted oneself to work is the second phase winding, the first transformer once winding current need to be made to be down to when it is devoted oneself to work just
Zero, if adjacent not instead of the second phase winding devoted oneself to work, when four phase windings, the duty of first switch tube PWM control
Than being 1；
According to rotor position information, when the second phase winding need to devote oneself to work, closure second switch and third are opened first
Guan Guan, while the second phase winding is electrically charged excitation, first capacitor device is exported to the first transformer discharge, is believed according to rotor-position
Breath and the second phase winding current information, disconnect second switch at the end of the second phase winding excitation stage, third switching tube is adopted
With PWM mode, the second phase winding enters power generating stage, and the second phase winding energy storage is discharged to first capacitor device, the first transformer one
Secondary winding continues to export electric energy to the first transformer secondary winding side in the closure that third switching tube PWM is controlled, the when disconnection
One transformer first winding also charges to first capacitor device, and the duty ratio selection principle of third switching tube PWM control is: when adjacent
When what is devoted oneself to work is the first phase winding, the first transformer once winding current need to be made to be down to when it is devoted oneself to work just
Zero, if adjacent not instead of the first phase winding devoted oneself to work, when third phase winding, the duty of third switching tube PWM control
Than being 1；
According to rotor position information, when third phase winding need to devote oneself to work, closure the 5th switching tube and the 8th first is opened
Guan Guan, while third phase winding is electrically charged excitation, the second capacitor is exported to the second transformer discharge, is believed according to rotor-position
Breath and third phase winding current information, disconnect the 8th switching tube at the end of the third phase winding excitation stage, and the 5th switching tube is adopted
With PWM mode, third phase winding enters power generating stage, and the energy storage of third phase winding is discharged to the second capacitor, the second transformer one
Secondary winding continues to export electric energy to the second transformer secondary winding side in the closure that the 5th switching tube PWM is controlled, the when disconnection
Two transformer first windings also charge to the second capacitor, and the duty ratio selection principle of the 5th switching tube PWM control is: when adjacent
When what is devoted oneself to work is four phase windings, the second transformer once winding current need to be made to be down to when it is devoted oneself to work just
Zero, if adjacent not instead of the 4th phase winding devoted oneself to work, when the second phase winding, the duty of the 5th switching tube PWM control
Than being 1；
According to rotor position information, when the 4th phase winding need to devote oneself to work, closure the 6th switching tube and the 7th first is opened
Guan Guan, while the 4th phase winding is electrically charged excitation, the second capacitor is exported to the second transformer discharge, is believed according to rotor-position
Breath and the 4th phase winding current information, disconnect the 6th switching tube at the end of the 4th phase winding excitation stage, and the 7th switching tube is adopted
With PWM mode, the 4th phase winding enters power generating stage, and the 4th phase winding energy storage is discharged to the second capacitor, the second transformer one
Secondary winding continues to export electric energy to the second transformer secondary winding side in the closure that the 7th switching tube PWM is controlled, the when disconnection
Two transformer first windings also charge to the second capacitor, and the duty ratio selection principle of the 7th switching tube PWM control is: when adjacent
When what is devoted oneself to work is third phase winding, the second transformer once winding current need to be made to be down to when it is devoted oneself to work just
Zero, if the adjacent not instead of third phase winding devoted oneself to work, when the first phase winding, the duty of the 7th switching tube PWM control
Than being 1.
Technical effect of the invention mainly has:
(1) switch reluctance generator is dragged respectively present invention firstly provides the coaxial both ends of diesel engine and one straight
Generator is flowed, is not necessarily to two diesel engines, and the direct current that dc generator issues is at the same time as switch reluctance generator
Field power supply solves the problems, such as the big of switch reluctance generator excitation, avoids carrying around bulky battery or design control
Complicated self-excitation converter system, while the excitation electric energy in order to ensure switch reluctance generator, what switch reluctance generator issued
Direct current energy is supplemented again to that should provide the load of DC power supply by dc generator, complementary power supply is realized, so that system
Overall utilization rate is high, control is easy, cost performance is high, meanwhile, for existing direct current diesel generating set, the increase that also can be convenient
One speed changer and switch reluctance generator system are transformed.
(2) the first transformer of the invention and the second transformer are identical, but their secondary winding the number of turns and first winding
The number of turns can not be identical, facilitates and realizes boosting, and also can be convenient realization decompression can be square if especially output is used for DC welder
Just it realizes decompression, and is exported high-quality through the first reactance and the second reactance, the filtering of third transformer and stream protective effect again
Measure the heavy DC electricity of high reliability.
(3) on switch reluctance generator converter structure of the invention, by each phase winding of switch reluctance generator and its
Complicated excitation and power generation operation, is blended in inversion circuit, does not increase excessive circuit and device, can preferably be encouraged
The work such as magnetic, power generation, forward and reverse inversion and afterflow, intersect coordinative operation control, each circuit it is only necessary to a switching tube into
This frequent switching operations of row PWM, the equal simple venation wave mode of rest switch pipe switch work, reduce overall switching loss；
Meanwhile under control method of the invention, the alternating current of the first transformer and the second transformer can be kept to connect to greatest extent
It is continuous, or cutout short as far as possible, improve power quality；Also, two groups of unsteady flow branches (the first transformer and the second transformation of the invention
Device) checker voltage and current, certainly this depend on switch reluctance generator itself each phase winding time-sharing work the characteristics of,
But the voltage and current of third capacitor and the 4th capacitor two sides after objectively making output end i.e. in parallel convert nature into
The complementation of row height variation, so that the pressure such as filtering become smaller, power quality is higher.
(4) electricity generation system of the invention, can draw six road DC power supplies and two-way high-frequency ac power makes for user's selection
With, reaching area particularly suitable for no power grid, daily power supply, the engineering construction in the area such as island, desert load, also,
Easily third capacitor and the 4th capacitor two sides can be changed to be connected in series, then can obtain the direct current of relatively high pressure all the way again
Electricity.
Detailed description of the invention
Fig. 1 show electricity generation system total structure of the invention.
Fig. 2 show switch reluctance generator converter circuit arrangement figure of the present invention.
Specific embodiment
A kind of electricity generation system of the present embodiment, as shown in Fig. 1, by dc generator, diesel engine, speed changer, switch magnetic
Generator system composition is hindered, dc generator, diesel engine, speed changer, switch reluctance generator system are coaxially connected, jointly by working as
In speed be 1500r/min or 3000r/min diesel engine generate dynamic rotation operation, wherein speed changer be speed increaser, rise
Fast 10-20 times.
Switch reluctance generator system is made of switch reluctance generator current transformer, controller, detection device, and controller is defeated
Eight switching tubes in signal driving switch reluctance generator current transformer, detection device detection switch reluctance generator system are controlled out
All kinds of fortune such as switch reluctance generator rotor position information, phase winding current information, three transformer winding current informations in system
In row signal and input controller.
The structure of switch reluctance generator current transformer is as shown in Fig. 2, including dc generator output capacitor C0, first
Phase winding M, the second phase winding N, third phase winding P, the 4th phase winding Q, first capacitor device C1, the second capacitor C2, third electricity
Container C3, the 4th capacitor C4, first switch tube V1, second switch V2, third switching tube V3, the 4th switching tube V4, the 5th
Switching tube V5, the 6th switching tube V6, the 7th switching tube V7, the 8th switching tube V8, first diode D1, the second diode D2,
Three diode D3, the 4th diode D4, the 5th diode D5, the 6th diode D6, the 7th diode D7, the 8th diode D8,
9th diode D9, the tenth diode D10, the 11st diode D11, the 12nd diode D12, the 13rd diode D13,
14 diode D14, the 15th diode D15, the 16th diode D16, the 17th diode D17, the 18th diode
D18, the 19th diode D19, the 20th diode D20, the first transformer T1, the second transformer T2, third transformer T3,
One reactance L1, the second reactance L2 composition, dc generator output capacitor C0 connection dc generator export both ends, DC generation
Machine output capacitor C0 anode connects first one end phase winding M, second one end phase winding N, the one end third phase winding P, the simultaneously
Four one end phase winding Q, the first phase winding M other end connect the 6th diode D6 anode, second phase winding N other end connection the 5th
Diode D5 anode, the third phase winding P other end connect the 12nd diode D12 anode, the 4th phase winding Q other end connection the
11 diode D11 anodes, the 6th diode D6 cathode connect third switching tube V3 cathode, the 4th switching tube V4 anode, third
Diode D3 anode, the 4th diode D4 cathode, first one end transformer T1 first winding N1, the connection of the 5th diode D5 cathode
First switch tube V1 cathode, second switch V2 anode, first diode D1 anode, the second diode D2 cathode, the first transformation
The device T1 first winding N1 other end, the 12nd diode D12 cathode connect the 7th switching tube V7 cathode, the 8th switching tube V8 sun
Pole, the 9th diode D9 anode, the tenth diode D10 cathode, second one end transformer T2 first winding N3, the 11st diode
D11 cathode connects the 5th switching tube V5 cathode, the 6th switching tube V6 anode, the 7th diode D7 anode, the 8th diode D8 yin
Pole, the second transformer T2 first winding N3 other end, first switch tube V1 anode, first diode D1 cathode, third switching tube
V3 anode, the connection of third diode D3 cathode, and connect with first capacitor device C1 anode, the 5th switching tube V5 anode, the seven or two
Pole pipe D7 cathode, the 7th switching tube V7 anode, the connection of the 9th diode D9 cathode, and connect with the second capacitor C2 anode, directly
Stream generator output capacitor C0 cathode connects first capacitor device C1 cathode, second switch V2 cathode, the second diode simultaneously
D2 anode, the 4th switching tube V4 cathode, the 4th diode D4 anode, the second capacitor C2 cathode, the 6th switching tube V6 cathode,
Eight diode D8 anodes, the 8th switching tube V8 cathode, the tenth diode D10 anode, first one end transformer T1 secondary winding N2
Connect the 13rd diode D13 anode and the 14th diode D14 cathode, the connection of the first transformer T1 secondary winding N2 other end
15th diode D15 anode and the 16th diode D16 cathode, the first transformer T1 first winding N1 and secondary winding N2 are same
Name end is symmetrical, and the 13rd diode D13 cathode connects the 15th diode D15 cathode, third capacitor C3 anode, the first reactance
The one end L1, second one end secondary winding N4 transformer T2 connect the 17th diode D17 anode and the 18th diode D18 yin
Pole, the second transformer T2 secondary winding N4 other end connect the 19th diode D19 anode and the 20th diode D20 cathode,
Second transformer T2 first winding N3 and secondary winding N4 Same Name of Ends are symmetrical, the 17th diode D17 cathode connection the 19th
Pole pipe D19 cathode, the 4th capacitor C4 anode, second one end reactance L2, the 14th diode D14 anode connect the 16th pole
Pipe D16 anode, third capacitor C3 cathode, the 18th diode D18 anode, the 20th diode D20 anode, the 4th capacitor
C4 cathode, the first reactance L1 other end connect the one end third transformer T3 first winding N5, second reactance L2 other end connection the
Three one end transformer T3 secondary winding N6, the third transformer T3 first winding N5 other end and third transformer T3 secondary winding N6
Other end connection, and be that different name end is shorted.
First capacitor device C1 and the second capacitor C2 are identical, and third capacitor C3 and the 4th capacitor C4 are identical, and first becomes
Depressor T1 and the second transformer T2 are identical, and all eight switching tubes are identical, third transformer T3 first winding N5 and secondary winding
N6 structure is identical, equal turn numbers, and the first reactance L1 and the second reactance L2 are identical.
The control method of the electricity generation system of the present embodiment, the direct current energy that dc generator issues, output is as straight outward
While galvanic electricity source, while the field power supply as switch reluctance generator current transformer in switch reluctance generator system, that is, it opens
Close the field power supply in excitation stage when each phase winding of reluctance generator works.
Rotor position information, the phase winding electricity of the detection device detection switch reluctance generator of switch reluctance generator system
Stream information, three transformer winding current informations, information of voltage of each capacitor etc., and as input to the controller, control
For device output drive signal processed to eight switching tubes in switch reluctance generator current transformer, eight switching tubes are full-control type electric power electricity
Sub- device, such as IGBT, power MOSFET, GTR, GTO.
Switch reluctance generator current transformer, such as the structure of attached drawing 2, regulating and controlling method, details are as follows, and wherein switching magnetic-resistance is sent out
Before motor is devoted oneself to work, whole switching tubes should be at off-state, according to switched reluctance machines working principle, the four of the present embodiment
Phase winding, can only be according to the 4th phase winding Q of first phase winding M- the second phase winding N- third phase winding P- or the first phase winding
The sequence time-sharing work of the 4th phase winding Q- third phase winding the second phase winding of P- N of M-, in general, switch reluctance generator
Rotor overlap coefficient is more between 0 to 0.5, and the overlap coefficient of the switch reluctance generator of the present embodiment is 0.35,
That is work has been put into simultaneously in subsequent phase winding when working after there are certain phase winding excitation stage in power generating stage
Operating condition in the excitation stage.
According to switch reluctance generator rotor position information, when the first phase winding M need to devote oneself to work, it is closed first first
Switching tube V1 and the 4th switching tube V4, the first phase winding M are electrically charged excitation, circuit are as follows: C0-M-D6-V4-C0, meanwhile, the first electricity
Container C1 discharges to the first transformer T1 to be exported, circuit are as follows: C1-V1-N1-V4-C1, the first transformer T1 electric current forward flow,
And exported through the 13rd diode D13, the 14th diode D14, the 15th diode D15, the 16th diode D16 rectification,
After third capacitor C3 filtering, through the flat wave electric current of the first reactance L1, believed according to rotor position information and the first phase winding M electric current
Breath, disconnects the 4th switching tube V4 at the end of the first phase winding M excitation stage, and first switch tube V1 uses PWM mode, the first phase
Winding M enters power generating stage, circuit are as follows: M-D6-D3-C1-C0-M is equivalent to the energy storage of the first phase winding M to first capacitor device
C1 provides charging, and can power to external loading, meanwhile, the first transformer T1 first winding N1 is controlled in first switch tube PWM
Closure when continue to export electric energy to the first side secondary winding N2 transformer T1 to the direction the first reactance L1 as described above, circuit
Are as follows: N1-D3-V1-N1, the circuit N1 no-voltage at this time, electric current decline slowly, when the PWM outage of first switch tube V1 is opened, the
One transformer T1 first winding N1 also charges to first capacitor device C1, circuit are as follows: N1-D3-C1-D2-N1, N1 bears anti-at this time
Pressure, so electric current decline is accelerated, to as it can be seen that can change the first transformation to the adjusting of the PWM duty cycle of first switch tube V1
The current duration of device T1 first winding N1, it is contemplated that the first transformer T1 work in if electric current can continuously if quality more preferably
Demand, so, the duty ratio selection principle of the PWM of first switch tube V1 control is: devote oneself to work is the second phase when adjacent
When winding N, the first transformer T1 first winding N1 electric current need to be made to be down to zero when it is devoted oneself to work just, at this time since it is desired that
First transformer T1 establishes continual electric current and reversed, if adjacent, devote oneself to work is not the second phase winding N, the second phase
Winding N does not work, it is desirable that subsequent second phase winding N works, electric current is slow as far as possible in preceding first transformer T1 first winding N1
Decline remains continuous, if not the second phase winding N, then must devote oneself to work followed by the 4th phase winding Q, first open at this time
The duty ratio for closing the PWM control of pipe V1 is fixed as 1, extends the downslope time of the first transformer T1 first winding N1 as far as possible,
It is preferred until entering electric current when the second phase winding N works after the 4th phase winding Q, third phase winding P power cut-off and being down to zero.
According to rotor position information, when the second phase winding N need to devote oneself to work, operating mode and the first phase winding M class
Seemingly, opposite to be briefly discussed below: closure second switch V2 and third switching tube V3, the second phase winding N are electrically charged excitation first,
Circuit: C0-N-D5-V2-C0, meanwhile, first capacitor device C1 is along the circuit C1-V3-N1-V2-C1 reversely to the first transformer T1
It discharges and exports rectification to the first direction reactance L1, thus the first winding N1 of the first transformer T1 and the first phase winding M work
When current direction on the contrary, alternation export, according to rotor position information and the second phase winding current information, when the second phase winding N is encouraged
Second switch V2 is disconnected at the end of the magnetic stage, third switching tube V3 uses PW mode, and the second phase winding N enters power generating stage,
Circuit are as follows: N-D5-D1-C1-C0-N, the second phase winding energy storage to first capacitor device discharge, meanwhile, the first transformer T1 once around
Group N1 continues to export electric energy to the first side secondary winding N2 transformer T1 in the closure that the PWM of third switching tube V3 is controlled, and returns
Road: the circuit N1-D1-V3-N1, N1 slowly declines without pressure, electric current, when being disconnected in the PWM of third switching tube V3, the first transformer T1
First winding N1 also charges to first capacitor device C1, and circuit is；N1-D1-C1-D4-N1, at this time N1 receiving counter emf cell decline add
Fastly, so passing through the duty ratio adjustable current duration of third switching tube V3, therefore the PWM control of third switching tube V3
Duty ratio selection principle is: when it is adjacent devote oneself to work be the first phase winding M when because be in same unsteady flow inversion circuit
In, the first transformer T1 first winding N1 electric current need to be made to be down to zero when it is devoted oneself to work just, if adjacent devote oneself to work
Not instead of the first phase winding M, when third phase winding P, the duty ratio of the PWM control of third switching tube V3 is 1, and reason is the same as the
One phase winding M works, and operating condition is identical, and difference when this operating condition and the operating condition of the first phase winding M for the first transformer T1 is
Current direction is different, on the contrary.
Since third phase winding P and the 4th phase winding Q is in same unsteady flow inversion circuit, structure and the first phase winding M
It is identical with unsteady flow inversion circuit where the second phase winding N, so, their operating condition and the first phase winding M and the second phase winding N phase
It is corresponding, it is only briefly described below:
According to rotor position information, when third phase winding P need to devote oneself to work, closure the 5th switching tube V5 and the 8th first
Switching tube V8, while third phase winding P is electrically charged excitation, the second capacitor C2 discharges to the second transformer T2 forward direction to be exported,
According to rotor position information and third phase winding P current information, the 8th switch is disconnected at the end of the third phase winding P excitation stage
Pipe V8, the 5th switching tube V5 use PWM mode, and third phase winding P enters power generating stage, and the energy storage of third phase winding P is to second
Capacitor C2 release, the second transformer T2 first winding N3 continue in the closure that the PWM of the 5th switching tube V5 is controlled to second
Transformer T2 secondary winding N4 side forward direction exports electric energy, locates after rectified to the second reactance L2, the when the 5th switching tube V5 disconnection
Two transformer T2 first winding N3 also charge to the second capacitor C2, and when based on the first phase winding M like above work, the 5th is opened
Close pipe V5 PWM control duty ratio selection principle be: when it is adjacent devote oneself to work be the 4th phase winding Q when, need to its investment
Make the second transformer T2 first winding N3 electric current be down to zero when work just, if it is adjacent devote oneself to work be not the 4th phase around
Group Q, but when the second phase winding N not in a unsteady flow circuit, the duty ratio of the PWM control of the 5th switching tube V5 is 1.
According to rotor position information, when the 4th phase winding Q need to devote oneself to work, closure the 6th switching tube V6 and the 7th first
Switching tube V7, while the 4th phase winding Q is electrically charged excitation, the second capacitor C2 is exported to the second transformer T2 back discharge,
According to rotor position information and the 4th phase winding Q current information, the 6th switch is disconnected at the end of the 4th phase winding Q excitation stage
Pipe V6, the 7th switching tube V7 use PWM mode, and the 4th phase winding Q enters power generating stage, and the 4th phase winding Q energy storage is electric to second
Container C2 release, the second transformer T2 first winding N3 continue to become to second in the closure that the PWM of the 7th switching tube V7 is controlled
The side depressor T2 secondary winding N4 reversely exports electric energy, exports after rectified to the second reactance L2, when the 7th switching tube V7 is disconnected
Second transformer T2 first winding N3 also charges to the second capacitor C2, the same when based on the second phase winding N like above work,
The duty ratio selection principle of the PWM control of 7th switching tube V7 is: when it is adjacent devote oneself to work be third phase winding P when, need to be
Make the second transformer T2 first winding N3 electric current be down to zero when it is devoted oneself to work, devote oneself to work is not if adjacent just
Three-phase windings P, but when the first phase winding M, the duty ratio of the PWM control of the 7th switching tube V7 is 1.
In view of although its fault-tolerance is strong, also bringing the hidden danger of output power quality in switch reluctance generator work,
Such as certain phase winding operation irregularity or the components failure such as generating unit speed fluctuation or capacitor etc., easily cause to be in parallel
Third capacitor C3 and the 4th both ends capacitor C4 it is unbalanced, and then caused a certain parallel branch electric current excessive pressure is big
The problem of, in addition to the first reactance L1 and the second reactance L2 are connected in two roads respectively, the another effect for passing through third transformer T3,
So that two-way branch couples, two-way electric current is equalized, the electric energy exported at this time is more stable, is particularly suitable for the direct current source of welding current
With.
It is transferred to power generating stage from the excitation stage when above-mentioned every phase winding works, mentioning need to be according to rotor position information
It the problem of with phase winding current information, need to be described as follows, in general, phase winding electric current need to reach and want at the end of the excitation stage
It asks, but if reach maximum excitation phases-time angle, when phase winding electric current still not up to requires, it is necessary to terminate the excitation stage
Into power generating stage, generating efficiency otherwise can be reduced, certainly, has been mentioned if before defined maximum excitation stage point
Phase winding electric current needed for preceding acquisition, then terminate in advance the excitation stage, movement principle when this is excitation forwarding electricity.
Due to above switch reluctance generator phase winding job order, it is seen that third capacitor C3 and the 4th capacitor C4
The Current Voltage that rectification obtains is also cross complementary, more stable.
From the present embodiment as it can be seen that system is total dc generator power output U0, first capacitor device C1 output UC1, the
It is total that two capacitors export UC2, third capacitor C3 output U3, the 4th capacitor C4 output U4, the third side transformer T3 output U5
Six road DC power supplies are counted to select for output, also have the first transformer T1 secondary winding N2 side U1, the second transformer T2 bis- times around
The group side N4 U2 two-way alternating current is after filtering for output, it is contemplated that the present embodiment switch reluctance generator runs on high-speed range
Interior, ac output frequency wants high more with respect to power frequency.
It is viewed from above although described in the present embodiment being four phase switch reluctance generators, it is equal for two-phase or six
The switch reluctance generator of even number phase, structure and control are all the same, so still falling within protection scope.
Claims (7)
1. a kind of electricity generation system is made of dc generator, diesel engine, speed changer, switch reluctance generator system, technology is special
Sign is that the dc generator, the diesel engine, the speed changer, the switch reluctance generator system are coaxially connected, altogether
Dynamic rotation operation is generated with by diesel engine, wherein speed changer is speed increaser.
2. a kind of electricity generation system according to claim 1, is technically characterized in that, the switch reluctance generator system by
Switch reluctance generator current transformer, controller, detection device composition, the controller output control signal drive the switch magnetic
Hinder each switching tube in generator converter, all kinds of run signal in the detection device detection switch reluctance generator system
And in input controller.
3. a kind of electricity generation system according to claim 2, is technically characterized in that, the switch reluctance generator current transformer
Including dc generator output capacitor, the first phase winding, the second phase winding, third phase winding, the 4th phase winding, first capacitor
Device, the second capacitor, third capacitor, the 4th capacitor, first switch tube, second switch, third switching tube, the 4th switch
Pipe, the 5th switching tube, the 6th switching tube, the 7th switching tube, the 8th switching tube, first diode, the second diode, the three or two pole
Pipe, the 4th diode, the 5th diode, the 6th diode, the 7th diode, the 8th diode, the 9th diode, the 12nd pole
Pipe, the 11st diode, the 12nd diode, the 13rd diode, the 14th diode, the 15th diode, the 16th
Pole pipe, the 17th diode, the 18th diode, the 19th diode, the 20th diode, the first transformer, the second transformation
Device, third transformer, the first reactance, the second reactance composition, technical characteristic are the dc generator output capacitor connections
Dc generator exports both ends, and dc generator output capacitor anode connects first phase winding one end, described the simultaneously
Two-phase winding one end, third phase winding one end, described 4th phase winding one end, first phase winding other end connection described the
Six diode anodes, the second phase winding other end connect the 5th diode anode, described in the connection of the third phase winding other end
12nd diode anode, the 4th phase winding other end connect the 11st diode anode, the connection of the 6th diode cathode
Third switch tube cathode, the 4th switch tube anode, the third diode anode, the 4th diode cathode,
Described first transformer first winding one end, the 5th diode cathode connect the first switch tube cathode, the second switch
Tube anode, the first diode anode, second diode cathode, the first transformer first winding other end, the 12nd
Diode cathode connection the 7th switch tube cathode, the 8th switch tube anode, the 9th diode anode, described the
Ten diode cathodes, described second transformer first winding one end, the 11st diode cathode connect the 5th switching tube yin
Pole, it is described 6th switch tube anode, the 7th diode anode, the 8th diode cathode, the second transformer once around
The group other end, first switch tube anode, first diode cathode, third switch tube anode, the connection of third diode cathode, and with
The first capacitor device anode connection, the 5th switch tube anode, the 7th diode cathode, the 7th switch tube anode, the 9th 2 pole
Tube cathode connection, and connect with second capacitor anode, dc generator output capacitor cathode connects the first electricity simultaneously
Container cathode, second switch tube cathode, the second diode anode, the 4th switch tube cathode, the 4th diode anode, the second capacitor
Device cathode, the 6th switch tube cathode, the 8th diode anode, the 8th switch tube cathode, the tenth diode anode, the first transformer
Secondary winding one end connects the 13rd diode anode and the 14th diode cathode, the first transformer secondary winding
The other end connects the 15th diode anode and the 16th diode cathode, the first transformer first winding and secondary winding
Same Name of Ends is symmetrical, and the 13rd diode cathode connects the 15th diode cathode, the third capacitor anode, first electricity
Anti- one end, second transformer secondary winding one end connect the 17th diode anode and the 18th diode cathode,
The second transformer secondary winding other end connects the 19th diode anode and the 20th diode cathode, the second transformer
First winding and secondary winding Same Name of Ends are symmetrical, and the 17th diode cathode connects the 19th diode cathode, the 4th electricity
Capacitor positive electrode, second reactance one end, it is negative that the 14th diode anode connects the 16th diode anode, third capacitor
Pole, the 18th diode anode, the 20th diode anode, the 4th capacitor anode, first reactance other end connection described the
Three transformer first winding one end, the second reactance other end connect third transformer secondary winding one end, and third transformer is primary
The winding other end is connected with the third transformer secondary winding other end, and is the connection of different name end.
4. a kind of electricity generation system according to claim 3, is technically characterized in that, the first capacitor device and the second capacitor
Device is identical, and third capacitor and the 4th capacitor are identical, and the first transformer and the second transformer are identical, all eight switching tube phases
Together, identical, equal turn numbers, the first reactance are identical with the second reactance with secondary winding structure for third transformer first winding.
5. a kind of electricity generation system according to claim 1, is technically characterized in that, the direct current that the dc generator issues
Electric energy, while output is as DC power supply outward, as switch reluctance generator current transformer in switch reluctance generator system
Field power supply, i.e. each phase winding of switch reluctance generator work when the excitation stage field power supply.
6. being technically characterized in that according to a kind of electricity generation system described in claim 2,3, the switch reluctance generator system
Detection device detection switch reluctance generator rotor position information, phase winding current information, three transformer winding electric currents
Information and as input to the controller, controller output drive signal is to eight switches in switch reluctance generator current transformer
Pipe.
7. a kind of electricity generation system according to claim 3, is technically characterized in that, the switch reluctance generator current transformer
Regulation method, before switch reluctance generator is devoted oneself to work, whole switching tubes are in an off state；
According to rotor position information, when the first phase winding need to devote oneself to work, it is closed first switch tube and the 4th switching tube first,
While first phase winding is electrically charged excitation, first capacitor device is exported to the first transformer discharge, according to rotor position information and
First phase winding current information, disconnects the 4th switching tube at the end of the first phase winding excitation stage, and first switch tube uses PWM
Mode, the first phase winding enter power generating stage, and the first phase winding energy storage is discharged to first capacitor device, the first transformer first winding
Continue to export electric energy to the first transformer secondary winding side in the closure of first switch tube PWM control, the first transformation when disconnection
Device first winding also charges to first capacitor device, and the duty ratio selection principle of first switch tube PWM control is: when adjacent investment work
When what is made is the second phase winding, the first transformer once winding current need to be made to be down to zero when it is devoted oneself to work just, if
Adjacent not instead of the second phase winding devoted oneself to work, when four phase windings, the duty ratio of first switch tube PWM control is 1；
According to rotor position information, when the second phase winding need to devote oneself to work, it is closed second switch and third switching tube first,
While second phase winding is electrically charged excitation, first capacitor device is exported to the first transformer discharge, according to rotor position information and
Second phase winding current information, disconnects second switch at the end of the second phase winding excitation stage, and third switching tube uses PWM
Mode, the second phase winding enter power generating stage, and the second phase winding energy storage is discharged to first capacitor device, the first transformer first winding
Continue to export electric energy to the first transformer secondary winding side in the closure of third switching tube PWM control, the first transformation when disconnection
Device first winding also charges to first capacitor device, and the duty ratio selection principle of third switching tube PWM control is: when adjacent investment work
When what is made is the first phase winding, the first transformer once winding current need to be made to be down to zero when it is devoted oneself to work just, if
Adjacent not instead of the first phase winding devoted oneself to work, when third phase winding, the duty ratio of third switching tube PWM control is 1；
According to rotor position information, when third phase winding need to devote oneself to work, it is closed the 5th switching tube and the 8th switching tube first,
While third phase winding is electrically charged excitation, the second capacitor is exported to the second transformer discharge, according to rotor position information and
Third phase winding current information, disconnects the 8th switching tube at the end of the third phase winding excitation stage, and the 5th switching tube uses PWM
Mode, third phase winding enter power generating stage, and the energy storage of third phase winding is discharged to the second capacitor, the second transformer first winding
Continue to export electric energy to the second transformer secondary winding side in the closure of the 5th switching tube PWM control, the second transformation when disconnection
Device first winding also charges to the second capacitor, and the duty ratio selection principle of the 5th switching tube PWM control is: when adjacent investment work
When what is made is four phase windings, the second transformer once winding current need to be made to be down to zero when it is devoted oneself to work just, if
Adjacent not instead of the 4th phase winding devoted oneself to work, when the second phase winding, the duty ratio of the 5th switching tube PWM control is 1；
According to rotor position information, when the 4th phase winding need to devote oneself to work, it is closed the 6th switching tube and the 7th switching tube first,
While 4th phase winding is electrically charged excitation, the second capacitor is exported to the second transformer discharge, according to rotor position information and
4th phase winding current information, disconnects the 6th switching tube at the end of the 4th phase winding excitation stage, and the 7th switching tube uses PWM
Mode, the 4th phase winding enter power generating stage, and the 4th phase winding energy storage is discharged to the second capacitor, the second transformer first winding
Continue to export electric energy to the second transformer secondary winding side in the closure of the 7th switching tube PWM control, the second transformation when disconnection
Device first winding also charges to the second capacitor, and the duty ratio selection principle of the 7th switching tube PWM control is: when adjacent investment work
When what is made is third phase winding, the second transformer once winding current need to be made to be down to zero when it is devoted oneself to work just, if
The adjacent not instead of third phase winding devoted oneself to work, when the first phase winding, the duty ratio of the 7th switching tube PWM control is 1.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110557064A (en) * | 2019-08-20 | 2019-12-10 | 中国计量大学 | Wide-range excitation power generation and automatic double-charging switched reluctance generator current transformation system |
| CN114301345A (en) * | 2021-12-21 | 2022-04-08 | 福建广通机电科技有限公司 | Automatic voltage regulating circuit of generator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060043938A1 (en) * | 2004-08-24 | 2006-03-02 | O'gorman Patrick A | Automotive electrical system configuration using a two bus structure |
| CN104079184A (en) * | 2014-06-23 | 2014-10-01 | 周细文 | Wind power converter based on bipolar direct-current structure |
| CN206041839U (en) * | 2016-08-17 | 2017-03-22 | 国家电网公司 | Compact electric automobile module of charging |
| WO2018019944A1 (en) * | 2016-07-29 | 2018-02-01 | Rheinisch-Westfälische Technische Hochschule Aachen (RWTH) | Drive converter for a switched reluctance machine |
| CN107979314A (en) * | 2017-12-14 | 2018-05-01 | 中国计量大学 | A kind of varying speed switch magnetic resistance wind-driven generator maximum power tracking and controlling method |
-
2019
- 2019-03-27 CN CN201910264417.1A patent/CN109995283B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060043938A1 (en) * | 2004-08-24 | 2006-03-02 | O'gorman Patrick A | Automotive electrical system configuration using a two bus structure |
| CN104079184A (en) * | 2014-06-23 | 2014-10-01 | 周细文 | Wind power converter based on bipolar direct-current structure |
| WO2018019944A1 (en) * | 2016-07-29 | 2018-02-01 | Rheinisch-Westfälische Technische Hochschule Aachen (RWTH) | Drive converter for a switched reluctance machine |
| CN206041839U (en) * | 2016-08-17 | 2017-03-22 | 国家电网公司 | Compact electric automobile module of charging |
| CN107979314A (en) * | 2017-12-14 | 2018-05-01 | 中国计量大学 | A kind of varying speed switch magnetic resistance wind-driven generator maximum power tracking and controlling method |
Non-Patent Citations (2)
| Title |
|---|
| MOHAMAD ABD ELMUTALAB等: "Extending the speed range of a switched reluctance motor using a fast demagnetizing technique", 《 2016 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE)》 * |
| 季小康: "永磁直驱三电平变流器控制策略研究", 《中国优秀硕士学位论文全文数据库（电子期刊）》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110557064A (en) * | 2019-08-20 | 2019-12-10 | 中国计量大学 | Wide-range excitation power generation and automatic double-charging switched reluctance generator current transformation system |
| CN110557064B (en) * | 2019-08-20 | 2021-02-12 | 中国计量大学 | Switched reluctance generator current transformation system |
| CN114301345A (en) * | 2021-12-21 | 2022-04-08 | 福建广通机电科技有限公司 | Automatic voltage regulating circuit of generator |
| CN114301345B (en) * | 2021-12-21 | 2023-10-20 | 福建广通机电科技有限公司 | Automatic voltage regulating circuit of generator |
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