CN110011578A - The switch reluctance generator converter system of the double direct current outputs of dual-port self-excitation - Google Patents
The switch reluctance generator converter system of the double direct current outputs of dual-port self-excitation Download PDFInfo
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- CN110011578A CN110011578A CN201910263718.2A CN201910263718A CN110011578A CN 110011578 A CN110011578 A CN 110011578A CN 201910263718 A CN201910263718 A CN 201910263718A CN 110011578 A CN110011578 A CN 110011578A
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- 238000004804 winding Methods 0.000 claims abstract description 164
- 230000005284 excitation Effects 0.000 claims abstract description 111
- 239000003990 capacitor Substances 0.000 claims abstract description 104
- 230000005611 electricity Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 8
- 238000010248 power generation Methods 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 abstract 1
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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
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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
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- Control Of Eletrric Generators (AREA)
Abstract
The switch reluctance generator converter system of the double direct current outputs of dual-port self-excitation, its structure is by eight capacitors, 11 switching tubes, three-phase windings, eight diodes, three inductance, isolated converters composition, two-way output is exported by double power generation circuits of each phase winding power generating stage, low pressure outlet side and field power supply are preferentially ensured when being short of power, and the sacrifice of High voltage output side brings the broader range of operation of system, based on enhanced excitation and widen excitation range promoted power benefit purpose, by easy structure and control achievable two-way excitation, in addition, pass through the HF switch control that interlocks, High voltage output side power quality is higher, isolated converters realize that the power quality of isolation and low-pressure side improves；Whole system structure is simple, regulation is convenient, vdiverse in function, adaptable, power benefit is high, has certain application value in system of all kinds of electricity generation system fields in particular for direct current user.
Description
Technical field
The present invention relates to switch reluctance generator system fields, and in particular to a kind of dual-port high-low pressure is adjustable excited, high
The switch reluctance generator current transformer and its regulation method of low pressure dual output direct current.
Background technique
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 application value.
The direct current that switch reluctance generator directly issues in many application fields, traditional sense, often voltage is not
It is able to satisfy requirement, if grid-connected, needs what boosting that can just meet the requirements；Also, in certain fields, difference is negative
Power supply needed for carrying is different, it is especially desirable to the DC power supply of different voltages, it is also desirable to generate by special current divider.
As switch reluctance generator, it is development trend that excitation mode, which selects self-excitation mode, reduces a large amount of artificial dimensions in this way
Workload is protected, but when its external machine power shakiness, self-excitation power supply also will receive influence, and then influence whether its excitation energy
Power, or even have to shut down.
For DC load, they intentionally get in addition to the voltage that meets the requirements, and desirably stable high quality
Supply voltage, so generally require special filter, even what filter.
The excitation of switch reluctance generator, in order to promote generating capacity and adapt to the power generation under different input machine powers
Adaptability, field power supply aspect can strengthen the field power supply carried out, and the excitation voltage that can be adjusted with wide scope, be real
The now important leverage of such function.
Summary of the invention
According to above background technique, present invention proposes a kind of two kinds of DC voltage direct generations of electricity of high-low pressure to export,
Strong self-excitation guarantee, the HF switch that interlocks directly promote output two kinds of power quality, high-low pressure excitation voltages under low input power
The adjustable excited switch reluctance generator converter system in section and its control method.
The technical solution of the present invention is as follows:
Dual-port is encouraged oneself the switch reluctance generator converter systems of double direct current outputs, by first capacitor device, the second capacitor,
Third capacitor, the 4th capacitor, the 5th capacitor, the 6th capacitor, the 7th capacitor, the 8th capacitor, first switch tube,
Second switch, third switching tube, the 4th switching tube, the 5th switching tube, the 6th switching tube, the 7th switching tube, the 8th switching tube,
9th switching tube, the tenth switching tube, the 11st switching tube, the first phase winding, the second phase winding, third phase winding, the one or two pole
Pipe, the second diode, third diode, the 4th diode, the 5th diode, the 6th diode, the 7th diode, the eight or two pole
Pipe, the first inductance, the second inductance, third inductance, isolated converters composition, technical characteristic are the first capacitor device anodes
Connect first phase winding one end, second diode cathode, second phase winding one end, the 4th diode yin
Pole, third phase winding one end, the 6th diode cathode, the 8th capacitor anode, the tenth switching tube yin
Pole, the 11st switch tube cathode, first capacitor device cathode connect the first switch tube cathode, second switch yin
Pole, third switch tube cathode, the 5th capacitor anode, the 8th switch tube cathode, the 7th switching tube yin
Pole, the 7th capacitor anode, the 9th the switch tube cathode, the 8th capacitor anode, third inductance one end, first
The phase winding other end connect first switch tube anode, the first diode anode, it is described 4th switch tube anode, the second phase around
Group other end connection second switch tube anode, the third diode anode, the 5th switch tube anode, third phase winding are another
One end connects third switch tube anode, the 5th diode anode, the 6th switch tube anode, and the second diode anode connects
Second capacitor anode, isolated converters input negative pole end are connect, the second capacitor anode connects first diode yin
Pole, the third capacitor anode, the 4th diode anode, third capacitor anode connect third diode cathode, described the
Four capacitor anodes, the 6th diode anode, the 4th capacitor anode are connecting the 5th diode cathode, isolated converters input just
Extremely, the 5th switch tube cathode of the 4th switch tube cathode connection, the 6th switch tube cathode, the 5th capacitor anode, described first
Inductance one end, second inductance one end, the 7th switch tube anode of first inductance other end connection, the 7th diode sun
Pole, the connection of the second inductance other end the 8th switch tube anode, described 6th capacitor one end, the 6th capacitor other end connection the
Seven diode cathodes, the 8th diode anode, the 8th diode cathode connect the 7th capacitor anode, and isolated converters are defeated
The 9th switch tube anode of positive terminal connection, the tenth switch tube anode out, it is another that isolated converters output negative pole end connects third inductance
One end, the 11st switch tube anode；
First phase winding is made of second first winding of the first phase winding, the first phase winding winding, technical characteristic
It is the second winding parallel connection of first phase winding, first winding and the first phase winding；
Second phase winding is made of second first winding of the second phase winding, the second phase winding winding, technical characteristic
It is that second phase winding, first winding is connected with second phase winding, second winding parallel；
Third phase winding is made of second first winding of third phase winding, third phase winding winding, technical characteristic
It is that first winding of the third phase winding is connected with second winding parallel of the third phase winding.
The control method of the switch reluctance generator converter system of the double direct current outputs of dual-port self-excitation are as follows:
During the switch reluctance generator converter system work of the double direct current outputs of dual-port self-excitation of the invention, need to combine
The operation logic of switch reluctance generator, according to real-time rotor position information, each phase winding is successively devoted oneself to work, every phase winding
It is divided into excitation stage and power generating stage during work, and timesharing carries out；
When the first phase winding need to devote oneself to work, closure first switch tube, the first phase winding enter excitation stage, root first
According to rotor position information and the first phase winding current information, the condition that the excitation stage terminates is to reach the rotor position that need to be turned off at the latest
It sets, if not reaching the rotor-position turned off at the latest but the first phase winding electric current has reached required current value, excitation stage
Terminate i.e. shutdown first switch tube, into power generating stage, the switch-status condition of the 4th switching tube during power generating stage are as follows: when the
For one capacitor-side excitation voltage when within range of normal value, the 4th switching tube is closure on state, when first capacitor device side
When excitation voltage is lower than excitation voltage lower limits of normal i.e. the first lower limit value, the 4th switching tube works in PWM mode, excitation voltage
More low duty ratio is smaller, when excitation voltage continue to drop to the second lower limit value and it is following when, the 4th switching tube is fully disconnected；
When the second phase winding need to devote oneself to work, closure second switch, the second phase winding enter excitation stage, root first
According to rotor position information and the second phase winding current information, the condition that the excitation stage terminates is to reach the rotor position that need to be turned off at the latest
It sets, if not reaching the rotor-position turned off at the latest but the second phase winding electric current has reached required current value, excitation stage
Terminate i.e. shutdown second switch, into power generating stage, the switch-status condition of the 5th switching tube during power generating stage are as follows: when the
For one capacitor-side excitation voltage when within range of normal value, the 5th switching tube is closure on state, when first capacitor device side
When excitation voltage is lower than excitation voltage lower limits of normal i.e. the first lower limit value, the 5th switching tube works in PWM mode, excitation voltage
More low duty ratio is smaller, when excitation voltage continue to drop to the second lower limit value and it is following when, the 5th switching tube is fully disconnected；
When third phase winding need to devote oneself to work, closure third switching tube, third phase winding enter excitation stage, root first
According to rotor position information and third phase winding current information, the condition that the excitation stage terminates is to reach the rotor position that need to be turned off at the latest
It sets, if not reaching the rotor-position turned off at the latest but third phase winding current has reached required current value, excitation stage
Terminate i.e. shutdown third switching tube, into power generating stage, the switch-status condition of the 6th switching tube during power generating stage are as follows: when the
For one capacitor-side excitation voltage when within range of normal value, the 6th switching tube is closure on state, when first capacitor device side
When excitation voltage is lower than excitation voltage lower limits of normal i.e. the first lower limit value, the 6th switching tube works in PWM mode, excitation voltage
More low duty ratio is smaller, when excitation voltage continue to drop to the second lower limit value and it is following when, the 6th switching tube is fully disconnected；
When the 5th capacitor-side voltage is in range of normal value, the 7th switching tube and the 8th switching tube are higher than 5KHZ's
The above same frequency of frequency switchs work, and interleaved switching；
9th switching tube works according to PWM mode；The excitation voltage needed for first capacitor device side need to reach the voltage encouraged by force
When value, i.e., in upper semisection demand in excitation voltage range of normal value when, the closure conducting of the tenth switching tube, the 11st switch
The PWM duty cycle of pipe off-state, the 9th switching tube is adjusted according to the specific requirements to excitation voltage；When to first capacitor device
The demand of side excitation voltage be its range of normal value in lower semisection and it is following when, the tenth switching tube off-state, the 11st switch
Pipe closure conducting, the PWM duty cycle of the 9th switching tube are adjusted according to the specific requirements to excitation voltage.
Technical effect of the invention mainly has:
(1) electricity generation system output end of the invention, has been divided into two-way, is to have the second capacitor, third capacitor, all the way
Lower voltage output end after the series connection of four capacitors, it is direct current output that another way, which is the high-voltage output end of the 7th capacitor-side,
So as to directly in response to the diversified demand of different DC load or micro direct-current power grid, and then reduce the subsequent change of user
Flow link.
(2) the 4th switching tubes, the 5th switching tube, the 6th switching tube are in terms of the effect of each phase winding power generating stage, normally
They are normally off during operation, to guarantee that two-way output is normal, still, when switch reluctance generator of the invention
External input machine power weakens, and is not enough to maintain normal doubleway output when providing electric power (for example under wind drive operating condition),
4th switching tube, the 5th switching tube, the 6th switching tube are worked by PWM mode, until the electric energy for interrupting the 7th capacitor-side is defeated
Out, total power output is reduced to ensure the normal excitation and the power supply of low-pressure end of switch reluctance generator, to widen switch
Reluctance generator minimum input power operation interval improves power generation width and whole power benefit.
The interleaved switching and high-frequency work of (3) the 7th switching tubes and the 8th switching tube, so that the 7th capacitor of output
The voltage and current of device side is more stable, and power quality is high, alleviates subsequent filtering burden, and the adjustable switch of the two switching tubes accounts for
Sky improves its adaptability than that also output voltage can be made adjustable.
The switch respectively of (4) the tenth switching tubes and the 11st switching tube, so that the excitation voltage of supply first capacitor device side
Actually it is divided into two-way dual-port, excitation voltage is higher when (disconnection of the 11st switching tube) is connected in the tenth switching tube closure, is conducive to strong
Change excitation, excitation voltage is relatively low when (disconnection of the tenth switching tube) is connected in the 11st switching tube closure, still, in the above height
It presses in excitation two-way section, specific excitation voltage value is determined by the duty ratio of the 9th switching tube again, thus, relatively traditional change is encouraged
The relatively narrow formula all the way of magnetic voltage range becomes excitation voltage circuit system, and excitation voltage of the invention is not only continuous, and provides model
It encloses wider, improves the adaptability of switch reluctance generator, widened power generation region, improve power benefit；The structure simultaneously
It is again very easy, it reduces costs.
Detailed description of the invention
Fig. 1 show the switch reluctance generator converter system structure chart of the double direct current outputs of dual-port self-excitation of the invention.
Specific embodiment
The switch reluctance generator converter system of the double direct current outputs of dual-port self-excitation of the present embodiment, structure chart such as attached drawing 1
It is shown, by first capacitor device C1, the second capacitor C2, third capacitor C3, the 4th capacitor C4, the 5th capacitor C5,
Six capacitor C6, the 7th capacitor C7, the 8th capacitor C8, first switch tube V1, second switch V2, third switching tube V3,
4th switching tube V4, the 5th switching tube V5, the 6th switching tube V6, the 7th switching tube V7, the 8th switching tube V8, the 9th switching tube
V9, the tenth switching tube V10, the 11st switching tube V11, the first phase winding M, the second phase winding N, third phase winding P, the one or two pole
Pipe D1, the second diode D2, third diode D3, the 4th diode D4, the 5th diode D5, the 6th diode D6, the seven or two
Pole pipe D7, the 8th diode D8, the first inductance L1, the second inductance L2, third inductance L3, isolated converters composition, first capacitor
Device C1 is as each phase winding field power supply supply side, first one end phase winding M of anode connection, the second diode D2 cathode, the
The one end two-phase winding N, the 4th diode D4 cathode, the one end third phase winding P, the 6th diode D6 cathode, the 8th capacitor C8
Anode, the tenth switching tube V10 cathode, the 11st switching tube V11 cathode, first capacitor device C1 cathode connect first switch tube V1 yin
Pole, second switch V2 cathode, third switching tube V3 cathode, the 5th capacitor C5 cathode, the 8th switching tube V8 cathode, the 7th open
Pipe V7 cathode, the 7th capacitor C7 cathode, the 9th switching tube V9 cathode, the 8th capacitor C8 cathode, the one end third inductance L3 are closed,
The first phase winding M other end connection first switch tube V1 anode, first diode D1 anode, the 4th switching tube V4 anode, second
The phase winding N other end connect second switch V2 anode, third diode D3 anode, the 5th switching tube V5 anode, third phase around
The group P other end connects third switching tube V3 anode, the 5th diode D5 anode, the 6th switching tube V6 anode, the second diode D2
Anode connects the second capacitor C2 cathode, isolated converters input negative pole end, and the second capacitor C2 anode connects first diode
D1 cathode, third capacitor C3 cathode, the 4th diode D4 anode, third capacitor C3 anode connect third diode D3 yin
Pole, the 4th capacitor C4 cathode, the 6th diode D6 anode, the 4th capacitor C4 anode connect the 5th diode D5 cathode, every
Positive terminal is inputted from current transformer, the 4th switching tube V4 cathode connects the 5th switching tube V5 cathode, the 6th switching tube V6 cathode, the 5th
Capacitor C5 anode, first one end inductance L1, second one end inductance L2, the 7th switching tube V7 sun of first inductance L1 other end connection
Pole, the 7th diode D7 anode, the second inductance L2 other end connect the 8th switching tube V8 anode, the 6th one end capacitor C6, the
The six capacitor C6 other ends connect the 7th diode D7 cathode, the 8th diode D8 anode, the 8th diode D8 cathode connection the
Seven capacitor C7 anodes, the 7th side capacitor C7 connects as the present embodiment high pressure U2 outlet side, isolated converters output cathode end
The 9th switching tube V9 anode, the tenth switching tube V10 anode are connect, it is another that isolated converters output negative pole end connects third inductance L3
End, the 11st switching tube V11 anode, the output both ends of isolated converters can be directly output as in addition to connecting the above device
The low pressure U1 outlet side of the present embodiment, and the field power supply of the output of the 8th capacitor-side just derives from this；
First phase winding M is made of second first winding M1 of the first phase winding, the first phase winding winding M2, the first phase
Second winding M2 of first winding M1 of winding and the first phase winding is connected in parallel；
Second phase winding N is made of second first winding N1 of the second phase winding, the second phase winding winding N2, the second phase
Second winding N2 of first winding N1 of winding and the second phase winding is connected in parallel；
Third phase winding P is made of second first winding P1 of third phase winding, third phase winding winding P2, third phase
Second winding P2 of first winding P1 of winding and third phase winding is connected in parallel；This three-phase windings is respectively divided into two branch respectively
Lu Hou, excitation effect, that is, excitation voltage enhance one times, and often every phase winding of the switch reluctance generator of routine is not a set of,
In fact also often it is divided into even number winding tricks, i.e. even number winding branch, it is achieved that it is easy to get up, and can enhanced excitation
Energy.
The control method of the switch reluctance generator converter system of the double direct current outputs of dual-port self-excitation of the present embodiment:
During the switch reluctance generator converter system work of the double direct current outputs of dual-port self-excitation of the present embodiment, need to tie
The operation logic of combination switch reluctance generator, according to real-time rotor position information, each phase winding is successively devoted oneself to work, timesharing into
Row is all respectively divided into excitation stage and power generating stage during every phase winding work, and timesharing carries out；
When the first phase winding M need to devote oneself to work, closure first switch tube V1, the first phase winding M first enters excitation rank
Section, circuit are as follows: C1-M-V1-C1, according to rotor position information and the first phase winding M current information, the condition that the excitation stage terminates
To reach the rotor-position that need to be turned off at the latest, if not reaching the rotor-position turned off at the latest but the first phase winding M electric current
Up to required current value, then the excitation stage terminates to turn off first switch tube V1, and into power generating stage, there are two for power generating stage
Circuit, first circuit is: M-D1-C2-D2-M, second circuit is: M-V4-C5-C1-M, but second circuit is not necessarily
It is formed, because the 4th switching tube V4 will decide whether to be connected as the case may be, the switch-status condition of the 4th switching tube V4 are as follows:
When the side first capacitor device C1 excitation voltage is when within range of normal value, the 4th switching tube V4 is closure on state, when first
When capacitor C1 side excitation voltage is lower than excitation voltage lower limits of normal i.e. the first lower limit value, the 4th switching tube V4 works in PWM
Mode, it is smaller that excitation voltage gets over low duty ratio, when excitation voltage continue to drop to the second lower limit value and it is following when, the 4th switching tube
V4 is fully disconnected；That is, need to gradually sacrifice the high-pressure side i.e. output energy of U2 output end when external machine power deficiency
Power ensures low-pressure side output, because low-pressure side output electric energy need to be as the secondary source of field power supply, otherwise generator can only be mentioned
Preceding shutdown；
When the second phase winding N need to devote oneself to work, closure second switch V2, the second phase winding N first enters excitation rank
Section, circuit are as follows: C1-N-V2-C1, according to rotor position information and the second phase winding N current information, the condition that the excitation stage terminates
To reach the rotor-position that need to be turned off at the latest, if not reaching the rotor-position turned off at the latest but the second phase winding N electric current
Up to required current value, then the excitation stage terminates to turn off second switch V2, and into power generating stage, there are two for power generating stage
Circuit, first circuit is: N-D3-C3-D4-N, second circuit is: N-V5-C5-C1-N, but second circuit is not equally
One is shaped as, because the 5th switching tube V5 will decide whether to be connected as the case may be, the switch state article of the 5th switching tube V5
Part are as follows: when the side first capacitor device C1 excitation voltage is when within range of normal value, the 5th switching tube V5 is closure on state, when
When first capacitor device C1 side excitation voltage is lower than excitation voltage lower limits of normal i.e. the first lower limit value, the 5th switching tube V5 is worked in
PWM mode, it is smaller that excitation voltage gets over low duty ratio, when excitation voltage continue to drop to the second lower limit value and it is following when, the 5th opens
Pipe V5 is closed to be fully disconnected；Likewise, sacrificing on high-tension side output carrys out the operation of safeguards system in order to avoid shutting down in advance；
When third phase winding P need to devote oneself to work, closure third switching tube V3, third phase winding P first enters excitation rank
Section, circuit are as follows: C1-P-V3-C1, according to rotor position information and third phase winding P current information, the condition that the excitation stage terminates
To reach the rotor-position that need to be turned off at the latest, if not reaching the rotor-position turned off at the latest but third phase winding P electric current
Up to required current value, then the excitation stage terminates to turn off third switching tube V3, and into power generating stage, there are two for power generating stage
Circuit, first circuit is: P-D5-C4-D6-P, second circuit is: P-V6-C5-C1-P, but second circuit is not equally
One is shaped as, because the 6th switching tube V6 will decide whether to be connected as the case may be, the switch state article of the 6th switching tube V6
Part are as follows: when the side first capacitor device C1 excitation voltage is when within range of normal value, the 6th switching tube V6 is closure on state, when
When first capacitor device C1 side excitation voltage is lower than excitation voltage lower limits of normal i.e. the first lower limit value, the 6th switching tube V6 is worked in
PWM mode, it is smaller that excitation voltage gets over low duty ratio, when excitation voltage continue to drop to the second lower limit value and it is following when, the 6th opens
Pipe V6 is closed to be fully disconnected；Likewise, sacrificing on high-tension side output carrys out the operation of safeguards system in order to avoid shutting down in advance；
Since the second capacitor C2, third capacitor C3, the 4th capacitor C4 series connection generate electricity back in each phase winding first
The output end on road is connected in series, so have the function of increasing voltage, but due to during each phase winding works in practice, excitation rank
Section generally wants short compared to power generating stage, in conjunction with each phase winding time-sharing work, that is to say, that first switch tube V1, second switch
The duty cycle of switching very little of pipe V2, third switching tube V3, in general between 1/12-1/6, so even if series connection, phase
To under the interleaved switching and its circuit of the 7th switching tube V7 and the 8th switching tube V8, the voltage after the output series connection of the first circuit is still
It is much lower, so the side output U1 after isolated converters are isolated is low-voltage output；
When the 5th side capacitor C5 voltage is in range of normal value, i.e., each phase winding second servo loop is to its normal power supply
When, the 7th switching tube V7 and the 8th switching tube V8 are in the above same frequency switch work of frequency higher than 5KHZ, generally 10-
50KHZ is preferred, and interleaved switching, i.e. the 8th switching tube V8 is off-state when the 7th switching tube V7 closure is connected, and the 7th opens
8th switching tube V8 closure conducting when closing pipe V7 off-state, in terms of respective state, when the 7th switching tube V7 closure, circuit
Are as follows: C5-L1-V7-C5, circuit after shutdown: C5-L1-D7-D8-C7-C5, then the both ends C7, that is, output voltage is higher than the both ends C5 naturally
Voltage, because L1 both end voltage accommodates, when similar 8th switching tube V8 switch motion, except the aid of L2, under equal conditions more
Increase the aid of the 6th capacitor C6, so the 7th two sides capacitor C7 voltage is very high, but, the 7th capacitor in the present embodiment
C7, including the 6th capacitor C6, their capacitance must be sufficiently large, thus based on obtaining under the premise of two switching tube interleaved switchings
More stable output HIGH voltage U2, also, output voltage U2 be also it is adjustable, by being switched to the 7th switching tube V7 and the 8th
The duty cycle adjustment of pipe V8, due to the circuit difference of two switching tubes, respective duty ratio is not necessarily identical, with same voltage item
It is preferential that more stable better output power quality is obtained under part.
9th switching tube V9 works according to PWM mode；Needed for the side first capacitor device C1 excitation voltage, which need to reach, encourages by force
When voltage value, i.e., in upper semisection demand in excitation voltage range of normal value when, the tenth switching tube V10 closure conducting, the
11 switching tube V11 off-states, the PWM duty cycle of the 9th switching tube V9 are adjusted according to the specific requirements to excitation voltage；
When the demand to the side first capacitor device C1 excitation voltage be its range of normal value in lower semisection and it is following when, the tenth switching tube V10
Off-state, the 11st switching tube V11 closure conducting, the PWM duty cycle of the 9th switching tube V9 is according to electricity generation system to excitation electricity
The specific requirements of pressure are adjusted；To as it can be seen that by the switch of the tenth switching tube V10 and the 11st switching tube V11, and combine in addition
Third inductance L3, the 9th switching tube V9 composition easy structure, can be realized two-way field power supply output, while the 9th switch
The adjusting of the duty cycle of switching of pipe V9 is so that two-way excitation can continuous type variation.
Although switch reluctance generator described in the present embodiment is M/N/P three-phase windings, from the structure or more of attached drawing 1
The control model can arbitrarily delete phase winding number as it can be seen that under same structure parallel connection and regulation method, that is to say, that
Still has protection scope for the switch reluctance generator present invention of two-phase or four phases and its above number of windings.
Claims (2)
- The switch reluctance generator converter system of double direct current outputs 1. dual-port is encouraged oneself, by first capacitor device, the second capacitor, the Three capacitors, the 4th capacitor, the 5th capacitor, the 6th capacitor, the 7th capacitor, the 8th 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, Nine switching tubes, the tenth switching tube, the 11st switching tube, the first phase winding, the second phase winding, third phase winding, first diode, Second diode, third diode, the 4th diode, the 5th diode, the 6th diode, the 7th diode, the 8th diode, First inductance, the second inductance, third inductance, isolated converters composition, technical characteristic are the first capacitor device anode connections First phase winding one end, second diode cathode, second phase winding one end, the 4th diode cathode, Third phase winding one end, the 6th diode cathode, the 8th capacitor anode, it is described tenth switch tube cathode, The 11st switch tube cathode, first capacitor device cathode connect the first switch tube cathode, the second switch tube cathode, Third switch tube cathode, the 5th capacitor anode, the 8th switch tube cathode, the 7th switch tube cathode, 7th capacitor anode, the 9th the switch tube cathode, the 8th capacitor anode, third inductance one end, the first phase The winding other end connects first switch tube anode, the first diode anode, the 4th switch tube anode, the second phase winding The other end connects second switch tube anode, the third diode anode, the 5th switch tube anode, and third phase winding is another End connection third switch tube anode, the 5th diode anode, the 6th switch tube anode, the connection of the second diode anode Second capacitor anode, isolated converters input negative pole end, the second capacitor anode connection first diode cathode, The third capacitor anode, the 4th diode anode, third capacitor anode connect third diode cathode, the 4th electricity Container cathode, the 6th diode anode, the 4th capacitor anode connect the 5th diode cathode, isolated converters input anode End, the 5th switch tube cathode of the 4th switch tube cathode connection, the 6th switch tube cathode, the 5th capacitor anode, first electricity Feel one end, second inductance one end, first inductance other end connection the 7th switchs tube anode, the 7th diode anode, The connection of the second inductance other end the 8th switch tube anode, described 6th capacitor one end, the 6th capacitor other end connection the 7th Diode cathode, the 8th diode anode, the 8th diode cathode connect the 7th capacitor anode, isolated converters output The 9th switch tube anode of positive terminal connection, the tenth switch tube anode, it is another that isolated converters output negative pole end connects third inductance End, the 11st switch tube anode；First phase winding is made of second first winding of the first phase winding, the first phase winding winding, and technical characteristic is institute State the second winding parallel connection of first winding of the first phase winding and the first phase winding；Second phase winding is made of second first winding of the second phase winding, the second phase winding winding, and technical characteristic is institute First winding of the second phase winding is stated to connect with second phase winding, second winding parallel；Third phase winding is made of second first winding of third phase winding, third phase winding winding, and technical characteristic is institute First winding of third phase winding is stated to connect with second winding parallel of the third phase winding.
- The controlling party of the switch reluctance generator converter system of double direct current outputs 2. dual-port according to claim 1 is encouraged oneself Method are as follows:It, need to be in conjunction with switch during the switch reluctance generator converter system work of the double direct current outputs of dual-port self-excitation of the invention The operation logic of reluctance generator, according to real-time rotor position information, each phase winding is successively devoted oneself to work, every phase winding work Period is divided into excitation stage and power generating stage, and timesharing carries out；When the first phase winding need to devote oneself to work, closure first switch tube first, the first phase winding enters the excitation stage, according to turning Sub- location information and the first phase winding current information, the condition that the excitation stage terminates are to reach the rotor-position that need to be turned off at the latest, If not reaching the rotor-position turned off at the latest but the first phase winding electric current having reached required current value, the excitation stage terminates First switch tube is turned off, into power generating stage, the switch-status condition of the 4th switching tube during power generating stage are as follows: when the first electricity For container side excitation voltage when within range of normal value, the 4th switching tube is closure on state, when first capacitor device side excitation When voltage is lower than excitation voltage lower limits of normal i.e. the first lower limit value, the 4th switching tube works in PWM mode, and excitation voltage is lower Duty ratio is smaller, when excitation voltage continue to drop to the second lower limit value and it is following when, the 4th switching tube is fully disconnected；When the second phase winding need to devote oneself to work, closure second switch first, the second phase winding enters the excitation stage, according to turning Sub- location information and the second phase winding current information, the condition that the excitation stage terminates are to reach the rotor-position that need to be turned off at the latest, If not reaching the rotor-position turned off at the latest but the second phase winding electric current having reached required current value, the excitation stage terminates Second switch is turned off, into power generating stage, the switch-status condition of the 5th switching tube during power generating stage are as follows: when the first electricity For container side excitation voltage when within range of normal value, the 5th switching tube is closure on state, when first capacitor device side excitation When voltage is lower than excitation voltage lower limits of normal i.e. the first lower limit value, the 5th switching tube works in PWM mode, and excitation voltage is lower Duty ratio is smaller, when excitation voltage continue to drop to the second lower limit value and it is following when, the 5th switching tube is fully disconnected；When third phase winding need to devote oneself to work, closure third switching tube first, third phase winding enters the excitation stage, according to turning Sub- location information and third phase winding current information, the condition that the excitation stage terminates are to reach the rotor-position that need to be turned off at the latest, If not reaching the rotor-position turned off at the latest but third phase winding current having reached required current value, the excitation stage terminates Third switching tube is turned off, into power generating stage, the switch-status condition of the 6th switching tube during power generating stage are as follows: when the first electricity For container side excitation voltage when within range of normal value, the 6th switching tube is closure on state, when first capacitor device side excitation When voltage is lower than excitation voltage lower limits of normal i.e. the first lower limit value, the 6th switching tube works in PWM mode, and excitation voltage is lower Duty ratio is smaller, when excitation voltage continue to drop to the second lower limit value and it is following when, the 6th switching tube is fully disconnected；When the 5th capacitor-side voltage is in range of normal value, the 7th switching tube and the 8th switching tube are in the frequency for being higher than 5KHZ The above same frequency switchs work, and interleaved switching；9th switching tube works according to PWM mode；When the excitation voltage needed for first capacitor device side need to reach the voltage value encouraged by force, When i.e. in upper semisection demand in excitation voltage range of normal value, the closure conducting of the tenth switching tube, the 11st switching tube is disconnected The PWM duty cycle of open state, the 9th switching tube is adjusted according to the specific requirements to excitation voltage；It is encouraged when to first capacitor device side The demand of magnetoelectricity pressure be its range of normal value in lower semisection and it is following when, the tenth switching tube off-state, the 11st switching tube closes Conducting is closed, the PWM duty cycle of the 9th switching tube is adjusted according to the specific requirements to excitation voltage.
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| CN201910263718.2A CN110011578B (en) | 2019-03-27 | 2019-03-27 | Double-port self-excitation double-direct-current-output switched reluctance generator current conversion system |
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Cited By (1)
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| CN112803848A (en) * | 2021-03-22 | 2021-05-14 | 河北工业大学 | Semi-self-excitation power converter of switched reluctance wind driven generator |
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| CN110011578B (en) | 2020-10-02 |
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