CN107147339B - A kind of four phase electric excitation biconvex electrode electric machine loss of excitation failure tolerant electricity-generating methods - Google Patents
A kind of four phase electric excitation biconvex electrode electric machine loss of excitation failure tolerant electricity-generating methods Download PDFInfo
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- CN107147339B CN107147339B CN201710362180.1A CN201710362180A CN107147339B CN 107147339 B CN107147339 B CN 107147339B CN 201710362180 A CN201710362180 A CN 201710362180A CN 107147339 B CN107147339 B CN 107147339B
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- 230000005284 excitation Effects 0.000 title claims abstract description 178
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- 238000004804 winding Methods 0.000 claims abstract description 84
- 238000010248 power generation Methods 0.000 claims abstract description 34
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- 230000007935 neutral effect Effects 0.000 claims description 3
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- 238000005457 optimization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
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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
- H02P9/305—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices controlling voltage
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Abstract
The invention discloses a kind of four phase electric excitation biconvex electrode electric machine loss of excitation failure tolerant electricity-generating methods, by detect exciting current size judge system excitation part whether failure, if fault-free, then four phase electric excitation biconvex electrode electric machines carry out uncontrollable rectifier power generation to load by full-bridge converter, realize output voltage closed-loop control by adjusting exciting current；If breaking down, then enable the 5th bridge arm, it sets an excitation angle and each leads into forward and reverse exciting current to four phase windings by four phase five bridge-arm converters, the fault-tolerant power generation of loss of excitation failure is realized using magnetic resistance potential, the closed-loop control of feasible system power generation output voltage is adjusted by adjusting excitation angle.The present invention only increases a redundancy bridge arm on conventional full bridge converter, realize the power generation of electric excitation biconvex electrode electric machine loss of excitation failure tolerant, it is effective to control simple and flexible, improves the reliability of electric excitation biconvex electrode electric machine, has broad application prospects in aviation starting-generating, field of wind power generation.
Description
Technical field
The present invention relates to motor control technology fields, more particularly to a kind of four phase electric excitation biconvex electrode electric machine loss of excitation failures to hold
Mistake method for electrically.
Background technique
As a kind of novel brshless DC motor, electric excitation biconvex electrode electric machine is with simple and reliable for structure, control is flexible, holds
Wrong performance is good, is suitable for the advantages of bad working environments, has broad application prospects in aviation, field of wind power generation.Multiphase electricity
Excitation biconvex electrode electric machine can reduce torque pulsation, reduce power generation output voltage ripple, improve System Fault Tolerance performance.As power generation
When machine is run, electric excitation biconvex electrode electric machine powers to the load through uncontrollable rectifier, realizes output voltage by adjusting exciting current
It adjusts, excitation part is system vulnerable component, and fault-tolerant electricity-generating method when breaking down urgently is studied.
Currently, the faults-tolerant control strategy study in relation to electric excitation biconvex electrode electric machine loss of excitation failure is still in its infancy.History
Stand it is big it is equal disclosed in " the fault-tolerant electricity generation system of electric excitation biconvex electrode electric machine excitation fault and its control method " (China, publication date:
On April 29th, 2015, publication number: 104579067A) a kind of electric excitation biconvex electrode based on three-phase four-arm is disclosed in patent
Motor loss of excitation failure tolerant electricity-generating method is passed to using two electrical angle periods as a control period into three-phase windings
Positive and negative reversed exciting current realizes the power generation under loss of excitation failure.But it directly cannot realize loss of excitation failure according to rotor position angle
Excitation function, actual implementation is complicated.
Increase the loss of excitation event that a phase redundancy bridge arm is able to achieve electric excitation biconvex electrode electric machine on the basis of full-bridge converter
Hinder generating function, but in four phase electric excitation biconvex electrode electric machines, every phase armature winding self-induction is in any sector with rotor-position
Change, in patent disclosed above the winding of self-induction constant interval is powered to the load, this electricity driven in four phases, five bridge arm
The short circuit that can cause the 5th bridge arm in excitation biconvex electrode electric machine can not achieve the loss of excitation failure tolerant power generation of system.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of four phases electricity for defect involved in background technique
Excitation biconvex electrode electric machine loss of excitation failure tolerant electricity-generating method.
The present invention uses following technical scheme to solve above-mentioned technical problem:
A kind of four phase electric excitation biconvex electrode electric machine loss of excitation failure tolerant electricity-generating methods, the four phases electric excitation biconvex electrode electric machine
Star-like connection, four phase windings are respectively A phase winding, B phase winding, C phase winding, D phase winding, are driven using four phase five bridge-arm converters
It is dynamic；
The four phases five bridge-arm converter includes four phase full-bridge converters and the 5th bridge arm；
The four phases full-bridge converter includes switch transistor T 1 to T8, diode D1 to D8；5th bridge arm includes switch
Pipe T9 to T10, diode D9 to D10；
The collector of the switch transistor T 1 to T10 is connected with the cathode of diode D1 to D10 respectively, emitter is respectively with two
The anode of pole pipe D1 to D10 is connected；
A phase winding is connected with the cathode of the anode of diode D1, diode D2 respectively；
B phase winding is connected with the cathode of the anode of diode D3, diode D4 respectively；
C phase winding is connected with the cathode of the anode of diode D5, diode D6 respectively；
D phase winding is connected with the cathode of the anode of diode D7, diode D8 respectively；
The neutral points of four phase electric excitation biconvex electrode electric machines by switch S respectively with the anode of diode D9, diode D10
Cathode is connected；
The cathode of diode D1 respectively with the cathode of diode D3, the cathode of diode D5, the cathode of diode D7, two poles
The cathode of pipe D9, the anode of external dc bus are connected；
The anode of diode D2 respectively with the anode of diode D4, the anode of diode D6, the anode of diode D8, two poles
The anode of pipe D10, the cathode of external dc bus are connected；
The loss of excitation failure tolerant electricity-generating method includes the following steps:
Step 1), judge four phase electric excitation biconvex electrode electric machines excitation part whether failure；
Step 2, if the excitation part fault-free of four phase electric excitation biconvex electrode electric machines, is in an off state switch S, four
Phase winding A, B, C, D are generated electricity by the anti-and diode uncontrollable rectifier of four phase full-bridge converters to load:
If the rotor position angle of four phase electric excitation biconvex electrode electric machines passes through in 0 ° ~ 90 ° sections, four phase winding A, B, C, D
Diode D1, D7, D4, D6 generate electricity to load；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines, in 90 ° ~ 180 ° sections, four phase winding A, B, C, D are logical
Diode D1, D3, D6, D8 is crossed to generate electricity to load；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines, in 180 ° ~ 270 ° sections, four phase winding A, B, C, D are logical
Diode D3, D5, D2, D8 is crossed to generate electricity to load；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines, in 270 ° ~ 360 ° sections, four phase winding A, B, C, D are logical
Diode D5, D7, D2, D4 is crossed to generate electricity to load；
Step 3), if the excitation partial fault of four phase electric excitation biconvex electrode electric machines, closure switch S enables the 5th bridge arm,
The loss of excitation failure tolerant generator operation of the power generation of A, C two-phase forward direction, B, D two-phase reverse power generation is carried out under system loss of excitation failure:
If the rotor position angle of four phase electric excitation biconvex electrode electric machines is in 0 ° ~ ° section (90- α), control switch pipe T1 is extremely
T10 is turned off, and for B phase winding by diode D3, D10 reverse power generation, α is preset excitation angle value；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines opens switch transistor T 5 in (90- α) ° ~ 90 ° of sections
Positive excitation is carried out to C phase winding, and control switch pipe T1 is closed to T4, T6 to T10, B phase winding passes through diode D3, D10
Reverse power generation；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines is in 90 ° ~ ° section (180- α), control switch pipe T1
It is turned off to T10, C phase winding is generated electricity by diode D6, D9 forward direction；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines opens switching tube in (180- α) ° ~ 180 ° of sections
T8 carries out reversed excitation to D phase winding, and control switch pipe T1 is closed to T7, T9 to T10, and C phase winding passes through diode D6, D9
Forward direction power generation；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines is in 180 ° ~ ° section (270- α), control switch pipe
T1 to T10 is turned off, and D phase winding passes through diode D7, D10 reverse power generation；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines opens switching tube in (270- α) ° ~ 270 ° of sections
T1 carries out positive excitation to A phase winding, and control switch pipe T2 to T10 is closed, and D phase winding is reversely sent out by diode D7, D10
Electricity；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines is in 270 ° ~ ° section (360- α), control switch pipe
T1 to T10 is turned off, and A phase winding is generated electricity by diode D2, D9 forward direction；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines opens switching tube in (360- α) ° ~ 360 ° of sections
T4 carries out reversed excitation to B phase winding, and control switch pipe T1 is closed to T3, T5 to T10, and A phase winding passes through diode D2, D9
Forward direction power generation.
As the of the invention a kind of further side of optimization of four phase electric excitation biconvex electrode electric machine loss of excitation failure tolerant electricity-generating methods
Case is realized to four phase electric excitation biconvex electrodes electricity by adjusting the exciting current of four phase electric excitation biconvex electrode electric machines in the step 2
The closed-loop control of machine generating voltage increases four phases if the generating voltage of four phase electric excitation biconvex electrode electric machines is less than given voltage
The exciting current of electric excitation biconvex electrode electric machine；If the generating voltage of four phase electric excitation biconvex electrode electric machines is greater than given voltage, subtract
The exciting current of small four phases electric excitation biconvex electrode electric machine.
As the of the invention a kind of further side of optimization of four phase electric excitation biconvex electrode electric machine loss of excitation failure tolerant electricity-generating methods
Case, the closed loop for carrying out four phase electric excitation biconvex electrode electric machine generating voltages in the step 3) by adjusting α is adjusted, if four phase electricity are encouraged
The generating voltage of magnetic double salient-pole electric machine is less than given voltage, increases α；If the generating voltage of four phase electric excitation biconvex electrode electric machines is greater than
Given voltage then reduces α.
The invention adopts the above technical scheme compared with prior art, has following technical effect that
1. driving electric excitation biconvex electrode electric machine using four phases, five bridge arm, normal condition and excitation fault can be achieved at the same time
When four phase electric excitation biconvex electrode electric machines power generation, further improve the reliability of electric excitation biconvex electrode electric machine；
2. the adjusting of output voltage can be realized by adjusting exciting current in electric excitation biconvex electrode electric machine under normal circumstances,
By adjusting excitation angle just adjustable output voltage and load current, Generation Control simple and flexible when excitation fault.
Detailed description of the invention
Fig. 1 is the four phase five bridge-arm converters driving topology of four phases electric excitation biconvex electrode electric machine provided by the invention；
Fig. 2 is four phase electric excitation biconvex electrode electric machines, four phase self-induction curve；
Fig. 3 is four phase electric excitation biconvex electrode electric machine loss of excitation failure tolerant generation current schematic diagrames.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing:
The invention discloses a kind of four phase electric excitation biconvex electrode electric machine loss of excitation failure tolerant electricity-generating methods, the four phases electricity is encouraged
Magnetic double salient-pole electric machine star-like connection, four phase windings are respectively A phase winding, B phase winding, C phase winding, D phase winding, using four phases five
Arm converter driving；
The four phases five bridge-arm converter includes four phase full-bridge converters and the 5th bridge arm；
The four phases full-bridge converter includes switch transistor T 1 to T8, diode D1 to D8；5th bridge arm includes switch
Pipe T9 to T10, diode D9 to D10；
The collector of the switch transistor T 1 to T10 is connected with the cathode of diode D1 to D10 respectively, emitter is respectively with two
The anode of pole pipe D1 to D10 is connected；
A phase winding is connected with the cathode of the anode of diode D1, diode D2 respectively；
B phase winding is connected with the cathode of the anode of diode D3, diode D4 respectively；
C phase winding is connected with the cathode of the anode of diode D5, diode D6 respectively；
D phase winding is connected with the cathode of the anode of diode D7, diode D8 respectively；
The neutral points of four phase electric excitation biconvex electrode electric machines by switch S respectively with the anode of diode D9, diode D10
Cathode is connected；
The cathode of diode D1 respectively with the cathode of diode D3, the cathode of diode D5, the cathode of diode D7, two poles
The cathode of pipe D9, the anode of external dc bus are connected；
The anode of diode D2 respectively with the anode of diode D4, the anode of diode D6, the anode of diode D8, two poles
The anode of pipe D10, the cathode of external dc bus are connected；
The loss of excitation failure tolerant electricity-generating method includes the following steps:
Step 1), judge four phase electric excitation biconvex electrode electric machines excitation part whether failure；
This can be by being arranged exciting current sensor, according to the sense of exciting current sensor in the excitation winding of motor
Data are answered to judge；
Step 2, if the excitation part fault-free of four phase electric excitation biconvex electrode electric machines, is in an off state switch S, four
Phase winding A, B, C, D are generated electricity by the anti-and diode uncontrollable rectifier of four phase full-bridge converters to load:
If the rotor position angle of four phase electric excitation biconvex electrode electric machines passes through in 0 ° ~ 90 ° sections, four phase winding A, B, C, D
Diode D1, D7, D4, D6 generate electricity to load；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines, in 90 ° ~ 180 ° sections, four phase winding A, B, C, D are logical
Diode D1, D3, D6, D8 is crossed to generate electricity to load；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines, in 180 ° ~ 270 ° sections, four phase winding A, B, C, D are logical
Diode D3, D5, D2, D8 is crossed to generate electricity to load；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines, in 270 ° ~ 360 ° sections, four phase winding A, B, C, D are logical
Diode D5, D7, D2, D4 is crossed to generate electricity to load；
Step 3), if the excitation partial fault of four phase electric excitation biconvex electrode electric machines, closure switch S enables the 5th bridge arm,
The loss of excitation failure tolerant generator operation of the power generation of A, C two-phase forward direction, B, D two-phase reverse power generation is carried out under system loss of excitation failure:
If the rotor position angle of four phase electric excitation biconvex electrode electric machines is in 0 ° ~ ° section (90- α), control switch pipe T1 is extremely
T10 is turned off, and for B phase winding by diode D3, D10 reverse power generation, α is preset excitation angle value；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines opens switch transistor T 5 in (90- α) ° ~ 90 ° of sections
Positive excitation is carried out to C phase winding, and control switch pipe T1 is closed to T4, T6 to T10, B phase winding passes through diode D3, D10
Reverse power generation；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines is in 90 ° ~ ° section (180- α), control switch pipe T1
It is turned off to T10, C phase winding is generated electricity by diode D6, D9 forward direction；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines opens switching tube in (180- α) ° ~ 180 ° of sections
T8 carries out reversed excitation to D phase winding, and control switch pipe T1 is closed to T7, T9 to T10, and C phase winding passes through diode D6, D9
Forward direction power generation；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines is in 180 ° ~ ° section (270- α), control switch pipe
T1 to T10 is turned off, and D phase winding passes through diode D7, D10 reverse power generation；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines opens switching tube in (270- α) ° ~ 270 ° of sections
T1 carries out positive excitation to A phase winding, and control switch pipe T2 to T10 is closed, and D phase winding is reversely sent out by diode D7, D10
Electricity；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines is in 270 ° ~ ° section (360- α), control switch pipe
T1 to T10 is turned off, and A phase winding is generated electricity by diode D2, D9 forward direction；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines opens switching tube in (360- α) ° ~ 360 ° of sections
T4 carries out reversed excitation to B phase winding, and control switch pipe T1 is closed to T3, T5 to T10, and A phase winding passes through diode D2, D9
Forward direction power generation.
The four phase five bridge-arm converters driving topology that four phase electric excitation biconvex electrode electric machines use is as shown in Figure 1.
Fig. 2 is four phase electric excitation biconvex electrode electric machines, four phase winding self-induction with rotor-position change curve, it can be seen that four
Phase armature winding self-induction changes with rotor-position at an arbitrary position.
When Fig. 3 is four phase electric excitation biconvex electrode electric machine loss of excitation failure of four phases five bridge-arm converter driving proposed by the present invention
Fault-tolerant generation current schematic diagram.
It is realized by adjusting the exciting current of four phase electric excitation biconvex electrode electric machines to four phase electric excitation biconvex electrodes in step 2
The closed-loop control of electric power generation voltage increases four if the generating voltage of four phase electric excitation biconvex electrode electric machines is less than given voltage
The exciting current of phase electric excitation biconvex electrode electric machine；If the generating voltage of four phase electric excitation biconvex electrode electric machines is greater than given voltage,
Reduce the exciting current of four phase electric excitation biconvex electrode electric machines.
The closed loop for carrying out four phase electric excitation biconvex electrode electric machine generating voltages in step 3) by adjusting α is adjusted, if four phases are electric
The generating voltage of excitation biconvex electrode electric machine is less than given voltage, increases α；If the generating voltage of four phase electric excitation biconvex electrode electric machines is big
In given voltage, then reduce α.
The fault-tolerant power generation that four phase electric excitation biconvex electrode electric machine loss of excitation failures can be realized through the above steps, further increases
The reliability of electric excitation biconvex electrode electric machine.
Those skilled in the art can understand that unless otherwise defined, all terms used herein (including skill
Art term and scientific term) there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Also
It should be understood that those terms such as defined in the general dictionary should be understood that have in the context of the prior art
The consistent meaning of meaning will not be explained in an idealized or overly formal meaning and unless defined as here.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not limited to this hair the foregoing is merely a specific embodiment of the invention
Bright, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection scope within.
Claims (3)
1. a kind of four phase electric excitation biconvex electrode electric machine loss of excitation failure tolerant electricity-generating methods, which is characterized in that the four phases electrical excitation
Double salient-pole electric machine star-like connection, four phase windings are respectively A phase winding, B phase winding, C phase winding, D phase winding, using four Xiang Wuqiao
The driving of arm converter；
The four phases five bridge-arm converter includes four phase full-bridge converters and the 5th bridge arm；
The four phases full-bridge converter includes switch transistor T 1 to T8, diode D1 to D8；5th bridge arm includes switch transistor T 9
To T10, diode D9 to D10；
The collector of the switch transistor T 1 to T10 is connected with the cathode of diode D1 to D10 respectively, emitter respectively and diode
The anode of D1 to D10 is connected；
A phase winding is connected with the cathode of the anode of diode D1, diode D2 respectively；
B phase winding is connected with the cathode of the anode of diode D3, diode D4 respectively；
C phase winding is connected with the cathode of the anode of diode D5, diode D6 respectively；
D phase winding is connected with the cathode of the anode of diode D7, diode D8 respectively；
The neutral point of four phase electric excitation biconvex electrode electric machines passes through the switch S cathode with the anode of diode D9, diode D10 respectively
It is connected；
The cathode of diode D1 respectively with the cathode of diode D3, the cathode of diode D5, the cathode of diode D7, diode D9
Cathode, external dc bus anode be connected；
The anode of diode D2 respectively with the anode of diode D4, the anode of diode D6, the anode of diode D8, diode
The anode of D10, the cathode of external dc bus are connected；
The loss of excitation failure tolerant electricity-generating method includes the following steps:
Step 1), judge four phase electric excitation biconvex electrode electric machines excitation part whether failure；
Step 2, if the excitation part fault-free of four phase electric excitation biconvex electrode electric machines, is in an off state switch S, four phases around
Group A, B, C, D is generated electricity by the anti-and diode uncontrollable rectifier of four phase full-bridge converters to load:
If the rotor position angle of four phase electric excitation biconvex electrode electric machines passes through two poles in 0 ° ~ 90 ° sections, four phase winding A, B, C, D
Pipe D1, D7, D4, D6 generate electricity to load；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines passes through two in 90 ° ~ 180 ° sections, four phase winding A, B, C, D
Pole pipe D1, D3, D6, D8 generate electricity to load；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines passes through two in 180 ° ~ 270 ° sections, four phase winding A, B, C, D
Pole pipe D3, D5, D2, D8 generate electricity to load；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines passes through two in 270 ° ~ 360 ° sections, four phase winding A, B, C, D
Pole pipe D5, D7, D2, D4 generate electricity to load；
Step 3), if the excitation partial fault of four phase electric excitation biconvex electrode electric machines, closure switch S enables the 5th bridge arm, in system
The loss of excitation failure tolerant generator operation of the power generation of A, C two-phase forward direction, B, D two-phase reverse power generation is carried out under loss of excitation failure:
If the rotor position angle of four phase electric excitation biconvex electrode electric machines is in 0 ° ~ ° section (90- α), control switch pipe T1 to T10
It is turned off, for B phase winding by diode D3, D10 reverse power generation, α is preset excitation angle value；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines opens switch transistor T 5 to C phase in (90- α) ° ~ 90 ° of sections
Winding carries out positive excitation, and control switch pipe T1 is closed to T4, T6 to T10, and B phase winding is reversely sent out by diode D3, D10
Electricity；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines is in 90 ° ~ ° section (180- α), control switch pipe T1 is extremely
T10 is turned off, and C phase winding is generated electricity by diode D6, D9 forward direction；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines opens switch transistor T 8 to D in (180- α) ° ~ 180 ° of sections
Phase winding carries out reversed excitation, and control switch pipe T1 is closed to T7, T9 to T10, and C phase winding is positive by diode D6, D9
Power generation；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines is in 180 ° ~ ° section (270- α), control switch pipe T1 is extremely
T10 is turned off, and D phase winding passes through diode D7, D10 reverse power generation；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines opens switch transistor T 1 to A in (270- α) ° ~ 270 ° of sections
Phase winding carries out positive excitation, and control switch pipe T2 to T10 is closed, and D phase winding passes through diode D7, D10 reverse power generation；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines is in 270 ° ~ ° section (360- α), control switch pipe T1 is extremely
T10 is turned off, and A phase winding is generated electricity by diode D2, D9 forward direction；
If the rotor position angle of four phase electric excitation biconvex electrode electric machines opens switch transistor T 4 to B in (360- α) ° ~ 360 ° of sections
Phase winding carries out reversed excitation, and control switch pipe T1 is closed to T3, T5 to T10, and A phase winding is positive by diode D2, D9
Power generation.
2. four phases electric excitation biconvex electrode electric machine loss of excitation failure tolerant electricity-generating method according to claim 1, which is characterized in that
It is realized by adjusting the exciting current of four phase electric excitation biconvex electrode electric machines to four phase electric excitation biconvex electrode electric machines in the step 2
The closed-loop control of generating voltage increases four phases electricity if the generating voltage of four phase electric excitation biconvex electrode electric machines is less than given voltage
The exciting current of excitation biconvex electrode electric machine；If the generating voltage of four phase electric excitation biconvex electrode electric machines is greater than given voltage, reduce
The exciting current of four phase electric excitation biconvex electrode electric machines.
3. four phases electric excitation biconvex electrode electric machine loss of excitation failure tolerant electricity-generating method according to claim 1, which is characterized in that
The closed loop for carrying out four phase electric excitation biconvex electrode electric machine generating voltages in the step 3) by adjusting α is adjusted, if four phase electrical excitations
The generating voltage of double salient-pole electric machine is less than given voltage, increases α；It is given if the generating voltage of four phase electric excitation biconvex electrode electric machines is greater than
Constant voltage then reduces α.
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| CN109245660B (en) * | 2018-08-13 | 2020-12-11 | 南京航空航天大学 | Four-phase electro-magnetic doubly salient motor fault-tolerant driving system and dynamic model establishment method thereof |
| CN110798121B (en) * | 2019-10-22 | 2021-04-20 | 华中科技大学 | Thyristor-based magnetic field modulation switched reluctance motor driving system and control method |
| CN114123928B (en) * | 2021-11-26 | 2023-11-07 | 南京航空航天大学 | N-phase doubly salient motor optimal current control method based on N+1 bridge arm |
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| JPS54125416A (en) * | 1978-03-23 | 1979-09-28 | Toshiba Corp | Three-phase armature winding with the number of convertible poles |
| CN101425776B (en) * | 2008-08-05 | 2010-06-30 | 东南大学 | Fault tolerant control method for double salient pole permanent magnet motor |
| CN103812319B (en) * | 2014-02-25 | 2016-08-17 | 南京航空航天大学 | A kind of four phase brushless DC motor error tolerant power converter and control methods |
| CN104579099B (en) * | 2015-01-09 | 2017-01-25 | 南京航空航天大学 | Four-phase electrical-excitation double-salient-pole motor and open-circuit fault diagnosis method thereof |
| CN104579067B (en) * | 2015-01-09 | 2017-05-17 | 南京航空航天大学 | Excitation fault fault-tolerant power generation system of double-salient electro-magnetic motor and control method of system |
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