CN109194216A - A kind of switched reluctance machines Direct Torque Fuzzy PI Control System and method - Google Patents
A kind of switched reluctance machines Direct Torque Fuzzy PI Control System and method Download PDFInfo
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- CN109194216A CN109194216A CN201810935232.4A CN201810935232A CN109194216A CN 109194216 A CN109194216 A CN 109194216A CN 201810935232 A CN201810935232 A CN 201810935232A CN 109194216 A CN109194216 A CN 109194216A
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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
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/0003—Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control
- H02P21/001—Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control using fuzzy control
-
- 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
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/14—Estimation or adaptation of machine parameters, e.g. flux, current or voltage
-
- 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
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/14—Estimation or adaptation of machine parameters, e.g. flux, current or voltage
- H02P21/20—Estimation of torque
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/08—Reluctance motors
- H02P25/092—Converters specially adapted for controlling reluctance motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/08—Reluctance motors
- H02P25/098—Arrangements for reducing torque ripple
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Fuzzy Systems (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention discloses a kind of switched reluctance machines Direct Torque Fuzzy PI Control System and methods, pi regulator, switch list module, SRM motor, power inverter and power supply are obscured including revolving speed, revolving speed obscures pi regulator and connect through hysteresis comparator with switch list module, switch list module is connect through power inverter with the input terminal of SRM motor, and power supply is connect with power inverter；The output end of SRM motor point three tunnels, all the way compared with given rotating speed after be sent to revolving speed and obscure pi regulator, the revolving speed that the second tunnel obscures pi regulator output after torque estimating module with revolving speed through a hysteresis comparator is sent to switch list module after being compared；Third road is sent to switch list through a hysteresis comparator afterwards compared with given magnetic linkage value all the way after flux estimate algorithm module, and another way is sent to switch list through region decision module.Present invention improves the dynamic and static state performances of system.Achievement of the present invention has a very important significance the running noises and torque pulsation that reduce switched reluctance machines.
Description
Technical field
The invention belongs to electrical engineering technical fields, and in particular to a kind of switched reluctance machines Direct Torque fuzzy PI hybrid control
System and method.
Background technique
Switched reluctance machines are suitable for due to having many advantages, such as that structure is simple, fault-tolerant power is strong, starting performance is good, overload power is strong
Working environment badly requires that detent torque is big, overload power is strong and is capable of the mine locomotive driving system of safe and reliable frequent starting and braking
In system.Due to the double-salient-pole structure of SRM and the step mode of switch form, keep the more other conventional motors of its torque pulsation serious.
Therefore, research reduces the torque pulsation method of switched reluctance machines, simplifies its control strategy and has become switched reluctance machines research
Critical problem.This system is for the purpose of Direct Torque Control, by detection switch reluctance motor stator voltage and current, according to
Go out instantaneous magnetic linkage and the torque of motor according to space vector theoretical calculation, and given value be compared after stagnant ring control is carried out to its deviation
System.In allowed limits by torque pulsation limitation, mine locomotive system reliability of operation is promoted.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of switching magnetic-resistance
Motor Direct Torque Fuzzy PI Control System and method, using double-closed-loop control, outer ring is speed ring, and inner ring is torque ring,
The effect of middle speed ring is to carry out fuzzy PI to speed to adjust, given value of the output of speed regulator as torque, in torque
Ring carries out the switch control of power inverter to torque error, magnetic linkage error and wayside signaling application direct torque control theory,
Energy is respectively mutually provided for switched reluctance machines.
The invention adopts the following technical scheme:
A kind of switched reluctance machines Direct Torque Fuzzy PI Control System, including revolving speed obscure pi regulator, switch list mould
Block, SRM motor, power inverter and power supply, revolving speed obscure pi regulator and connect through hysteresis comparator with switch list module, switch
Table module is connect through power inverter with the input terminal of SRM motor, and power supply is connect with power inverter；The output end of SRM motor
Point three tunnels, all the way compared with given rotating speed after be sent to revolving speed and obscure pi regulator, the second tunnel after torque estimating module with turn
Speed obscures and is sent to switch list module through a hysteresis comparator after the revolving speed that pi regulator exports is compared；Third road is through magnetic
It is sent to switch list through a hysteresis comparator afterwards compared with given magnetic linkage value all the way after chain estimation block, another way is sentenced through region
Disconnected module is sent to switch list.
A kind of switched reluctance machines Direct Torque Fuzzy PI utilizes the switched reluctance machines Direct Torque
Fuzzy PI Control System, using double-closed-loop control, outer ring is speed ring, and inner ring is torque ring, and speed ring obscures speed
PI is adjusted, and revolving speed obscures given value of the output of pi regulator as torque；Torque ring is to torque error, magnetic linkage error and section
Signal application direct torque control theory carries out the switch control of power inverter, respectively mutually provides energy for switched reluctance machines.
Specifically, inner ring using Direct Torque Control, specifically includes the control of switch list module, torque estimating module controls,
Region decision module and magnetic linkage control, the stagnant ring moulds block control of torque；
Switch list module control are as follows: by selecting voltage vector, while considering the variation of magnetic linkage and torque, by magnetic linkage and turn
The variation relation of square is concluded, and power switch is switched on or off state in control power inverter；
Torque estimating module are as follows: θ, the i obtained according to detection obtains each phase torque T by T (θ, i) functional relation, then right
Obtained each phase torque summation, finds out the total instantaneous torque of switched reluctance machines；
Region decision module are as follows: according to the size and three-phase switch reluctance machine space vector of the magnetic linkage angle δ being calculated
Distribution, correspondence judge flux linkage vector region；
Magnetic linkage, the stagnant ring moulds block of torque are as follows: magnetic linkage, torque controller use stagnant ring moulds block, when deviation exceeds stagnant ring ring width,
If deviation is positive, hysteresis comparator output is 1, increases magnetic linkage, torque value；If deviation is negative, hysteresis comparator output
It is 0, reduces magnetic linkage, torque.
Further, magnetic linkage, torque hysteresis band take 0.01,0.1 respectively.
Further, in the control of switch list module, according to flux estimate algorithm module ukObtain winding current, voltage and stator magnet
The relational expression of chain establishes out the model of stator flux of motor calculating section, and amplitude, the magnetic of instantaneous magnetic linkage are obtained after magnetic linkage converts
Chain angle δ；When SRM motor threephase stator coordinate system A axis forward direction is consistent with space vector a axis, three phase coordinates are become with coordinate transform
It changes two phase coordinate systems into, obtains the transformation for mula of magnetic linkage conversion module.
Further, flux estimate algorithm module ukCalculation formula is as follows:
Wherein, RKFor K phase winding internal resistance, ikFor for K phase winding electric current, ekFor kth phase winding electromotive force,For kth
Phase winding magnetic linkage, relative position angle of the θ between kth phase winding and rotor.
Further, the relational expression of winding current, voltage and stator magnetic linkage are as follows:
Wherein,For stator magnetic linkage, U is stator winding end voltage, and i is stator winding current, RsFor electronics winding internal resistance.
Further, the transformation for mula of magnetic linkage conversion module is as follows:
Wherein,Component for total magnetic linkage in the direction space vector coordinate system real axis α,It is total magnetic linkage in space vector
The component of coordinate system imaginary axis β axis direction,For the magnetic linkage of c phase winding,For b phase winding magnetic linkage,For a phase winding magnetic linkage, δ is
Magnetic linkage angle.
Specifically, outer ring uses revolving speed fuzzy PI hybrid control, fuzzy controller is used when system speed error is big, works as revolving speed
When error is less than setting value, it is switched to PI controller；Fuzzy controller is input, root with speed error e and error change amount ec
After carrying out fuzzy reasoning according to fuzzy rule, then pass through anti fuzzy method, precisely controlled variable.
Compared with prior art, the present invention at least has the advantages that
A kind of switched reluctance machines Direct Torque Fuzzy PI Control System of the present invention, including revolving speed obscure pi regulator, open
Table module, SRM motor, power inverter and power supply are closed, the speed control of system uses Fuzzy~+ PI technology, not only
Expectation torque and the magnetic linkage of reference directly can be provided for direct torque inner ring, have take full advantage of fuzzy control and PI control it is excellent
Point is conducive to the dynamic and static performance of raising system.Inner ring directly controls torque, exports corresponding winding voltage signal,
Keep control more direct effective.
A kind of switched reluctance machines Direct Torque Fuzzy PI of the present invention, using double-closed-loop control, outer ring is speed
Ring is spent, inner ring is torque ring, and speed ring carries out fuzzy PI to speed and adjusts, and revolving speed obscures the output of pi regulator as torque
Given value；Torque ring carries out power inverter to torque error, magnetic linkage error and wayside signaling application direct torque control theory
Switch control, provide energy mutually respectively for switched reluctance machines,.
Further, inner ring use Direct Torque Control, after motor speed is mapped on motor torque, directly to turn
Square is controlled, and current regulation is no longer converted into, but to corresponding voltage signal is exported after torque direct control, directly adjust
Winding phase voltage, control are more direct effective.And given torque needed for Strategy of Direct Torque Control and given magnetic linkage are by speed
Degree ring obtains, removes conversion and control strategy without the difference with system speed, is suitable for full speed range.
Further, the width of stagnant ring directly affects the fluctuation range of SRM torque pulsation, when ring width is wide, tracking error
Greatly；When ring width is narrow, tracking error is small, but switching frequency is high, and switching loss is big.According to the size of practical magnetic linkage and torque, examine
Consider the factors such as system control precision, transfer efficiency and torque fluctuation range, magnetic linkage, torque hysteresis band are taken as 0.01 respectively,
0.1。
Further, it by the size of the available δ of transformation for mula of magnetic linkage conversion module, is opened according to the size of δ and three-phase
Flux linkage vector region can be judged by closing the distribution of reluctance motor space vector.
Further, due to non-linear, the structure changes characteristic of switched reluctance machines, conventional PI is adjusted in switching magnetic-resistance electricity
Machine speed is difficult to determine the adjustment parameter of controller in adjusting.And fuzzy control is suitable for controlling complicated nonlinear system, it is right
Parameters variation has robustness, and strong antijamming capability can guarantee the stability and good dynamic property of system.But Fuzzy Control
There are the blind area of control for system, herein the control method compound using fuzzy PI, have both solved system adjustment parameter and have been difficult to determining ask
Topic, also overcomes the blind area of control of fuzzy control, the dynamic and static characteristic of system is made to be superior to single control method.
In conclusion motor speed adjusting is mapped to torque and is adjusted present invention introduces Strategy of Direct Torque Control
Torque it is expected to motor, directly torque is controlled, and the variation of torque, magnetic linkage is required through switch list reflection to switch magnetic
In the on-off for hindering each winding phase main switching device of motor, the voltage being added on each phase winding of motor is controlled, so that control is more
Directly effectively.Speed regulator uses fuzzy PI hybrid control technology, hence it is evident that improves the dynamic and static state performance of system.Achievement pair of the present invention
It is had a very important significance in the running noises and torque pulsation for reducing switched reluctance machines.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is switched reluctance machines Direct Torque Fuzzy PI Control System structural schematic block diagram；
Fig. 2 is switched reluctance machines fuzzy PI hybrid control block diagram.
Specific embodiment
Referring to Fig. 1, the present invention provides a kind of switched reluctance machines Direct Torque Fuzzy PI Control System, including revolving speed
Belonging to fuzzy pi regulator, power inverter, switch list, SRM motor, torque and flux estimate algorithm, torque and flux regulating, magnetic linkage
Seven part of region decision is constituted.
SRM motor respectively with torque estimating, flux estimate algorithm and revolving speed obscure pi regulator connect, SRM motor speed and
Given rotating speed is sent to revolving speed and obscures pi regulator after being compared, through stagnant ring after being then compared with the result of torque estimating
Comparator is connect with switch list；Flux linkage estimation value judges to connect with switch list through magnetic linkage affiliated area, gives magnetic linkage value and magnetic linkage
Estimated value is connect through hysteresis comparator with switch list after being compared；Switch list is connect through power inverter with SRM motor.
Control strategy uses double-closed-loop control, and outer ring is speed ring, and inner ring is torque ring, and wherein the effect of speed ring is pair
Speed carries out fuzzy PI and adjusts, and revolving speed obscures given value of the output of pi regulator as torque.Torque inner ring to torque error,
Magnetic linkage error and wayside signaling application direct torque control theory carry out the switch control of power inverter, are switched reluctance machines
It is each that energy is mutually provided.
Referring to Fig. 2, a kind of switched reluctance machines Direct Torque Fuzzy PI of the present invention, including inner ring directly turn
Square control and outer ring revolving speed fuzzy PI hybrid control.
Inner ring Direct Torque Control is specific as follows:
(1) switch list module: by selecting suitable voltage vector, while the variation of magnetic linkage and torque is considered, by magnetic linkage
It is concluded with the variation relation of torque, is switched on or off state with what this controlled power switch in power inverter.
Flux estimate algorithm module ukCalculation formula is as follows:
Wherein, RKFor stator phase winding resistance, ikFor stator phase winding electric current, ekFor stator phase winding electromotive force,It is fixed
Sub- phase winding magnetic linkage, θ are rotor position angle, and i is phase winding electric current, and dt is time diffusion.
It can be concluded that the relational expression of winding current, voltage and stator magnetic linkage are as follows:
Wherein,For stator winding magnetic linkage, U is stator winding end voltage, and i is stator winding current, RsFor stator winding electricity
Resistance.
Thus the model for establishing out stator flux of motor calculating section, obtained after magnetic linkage converts instantaneous magnetic linkage amplitude,
Magnetic linkage angle δ.When SRM threephase stator coordinate system A axis forward direction is consistent with space vector a axis, with coordinate transform three-phase coordinate transform
At two phase coordinate systems, the transformation for mula for obtaining magnetic linkage conversion module is as follows:
Wherein,Component for total magnetic linkage in the direction space vector coordinate system real axis α,It is total magnetic linkage in space vector
The component of coordinate system imaginary axis β axis direction,For a phase winding magnetic linkage,For the magnetic linkage of c phase winding,For b phase winding magnetic linkage, δ is
Magnetic linkage angle.
(2) torque estimating module: θ, the i obtained according to detection obtains each phase torque T by T (θ, i) functional relation, then right
Obtained each phase torque summation, finds out the total instantaneous torque of switched reluctance machines.
(3) region decision module: according to point of the size for the δ being calculated and three-phase switch reluctance machine space vector
Cloth, correspondence judge flux linkage vector region.
(4) magnetic linkage, the stagnant ring moulds block of torque: magnetic linkage, torque controller use stagnant ring moulds block, when deviation exceeds stagnant ring ring width
When, if deviation is positive, hysteresis comparator output is 1, increases magnetic linkage, torque value；If deviation is negative, hysteresis comparator is defeated
Out it is 0, reduces magnetic linkage, torque.
In order to mention high control precision, magnetic linkage, torque hysteresis band take 0.01,0.1 respectively.
Outer ring revolving speed fuzzy PI hybrid control:
In order to improve quiet, the dynamic property of switched Reluctance Motor Control System, the speed of rotary speed-torque double closed-loop control system
It spends controller and uses Fuzzy~+ PI technology.When system speed error is greater than the 8% of steady-state speed, using fuzzy control
Device is switched to PI controller when speed error is less than the 8% of steady-state speed.Fuzzy controller is become with speed error e and error
Change amount ec is input, after carrying out fuzzy reasoning according to fuzzy rule, then passes through anti fuzzy method, precisely controlled variable.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being described and shown in usually here in attached drawing is real
The component for applying example can be arranged and be designed by a variety of different configurations.Therefore, below to the present invention provided in the accompanying drawings
The detailed description of embodiment be not intended to limit the range of claimed invention, but be merely representative of of the invention selected
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The simulation model that system is established by Matlab simulation software carries out fuzzy PI direct Torque Control
Emulation experiment, the parameter of electric machine used are as follows: Ns=6, Nr=4, voltage rating 240V, rated power 132kW, motor speed are
500r/min, giving magnetic linkage amplitude is 0.33Wb, and motor original state is zero load, experimental period 3s.Simulation result shows: electricity
After machine operation, revolving speed rapidly rises to stable state, and without speed overshoot.The interference of load 12Nm was added to motor at 2 seconds,
Its revolving speed, torque curve occur compared with stable operation quickly after minor swing.It is indicated above inhibition of the control method to torque ripple
Effect is obvious, has good anti-interference ability, and stable state floating.Send elsewhere it is bright can further genralrlization Study on direct torque control technology
Application range in switched reluctance machines.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (9)
1. a kind of switched reluctance machines Direct Torque Fuzzy PI Control System, which is characterized in that including revolving speed obscure pi regulator,
Switch list module, SRM motor, power inverter and power supply, revolving speed obscure pi regulator through hysteresis comparator and switch list module
Connection, switch list module are connect through power inverter with the input terminal of SRM motor, and power supply is connect with power inverter；SRM motor
Output end point three tunnels, all the way compared with given rotating speed after be sent to revolving speed and obscure pi regulator, the second tunnel is through torque estimating mould
It is obscured after block with revolving speed and is sent to switch list module through a hysteresis comparator after the revolving speed that pi regulator exports is compared；The
Three tunnels are sent to switch list, another way through a hysteresis comparator afterwards compared with given magnetic linkage value all the way after flux estimate algorithm module
Switch list is sent to through region decision module.
2. a kind of switched reluctance machines Direct Torque Fuzzy PI, which is characterized in that opened using described in claim 1
Reluctance motor Direct Torque Fuzzy PI Control System is closed, using double-closed-loop control, outer ring is speed ring, and inner ring is torque ring, speed
Degree ring carries out fuzzy PI to speed and adjusts, and revolving speed obscures given value of the output of pi regulator as torque；Torque ring is to torque
Error, magnetic linkage error and wayside signaling application direct torque control theory carry out the switch control of power inverter, to switch magnetic
Resistance motor respectively mutually provides energy.
3. a kind of switched reluctance machines Direct Torque Fuzzy PI according to claim 2, which is characterized in that interior
Ring uses Direct Torque Control, specifically includes the control of switch list module, the control of torque estimating module, region decision module and magnetic
Chain control, the stagnant ring moulds block control of torque；
Switch list module control are as follows: by selecting voltage vector, while the variation of magnetic linkage and torque is considered, by magnetic linkage and torque
Variation relation is concluded, and power switch is switched on or off state in control power inverter；
Torque estimating module are as follows: each phase torque T is obtained by T (θ, i) functional relation according to detection obtained θ, i, then to obtaining
Each phase torque summation, find out the total instantaneous torque of switched reluctance machines；
Region decision module are as follows: according to point of the size for the magnetic linkage angle δ being calculated and three-phase switch reluctance machine space vector
Cloth, correspondence judge flux linkage vector region；
Magnetic linkage, the stagnant ring moulds block of torque are as follows: magnetic linkage, torque controller use stagnant ring moulds block, when deviation exceeds stagnant ring ring width, if partially
Difference is positive, and hysteresis comparator output is 1, increases magnetic linkage, torque value；If deviation is negative, hysteresis comparator output is 0,
Reduce magnetic linkage, torque.
4. a kind of switched reluctance machines Direct Torque Fuzzy PI according to claim 3, which is characterized in that magnetic
Chain, torque hysteresis band take 0.01,0.1 respectively.
5. a kind of switched reluctance machines Direct Torque Fuzzy PI according to claim 3, which is characterized in that open
It closes in the control of table module, according to flux estimate algorithm module ukThe relational expression for obtaining winding current, voltage and stator magnetic linkage establishes out electricity
The model of machine stator flux linkage calculation part obtains amplitude, the magnetic linkage angle δ of instantaneous magnetic linkage after magnetic linkage converts；SRM motor three-phase is fixed
When subcoordinate system A axis forward direction is consistent with space vector a axis, three-phase coordinate transform is obtained at two phase coordinate systems with coordinate transform
The transformation for mula of magnetic linkage conversion module.
6. a kind of switched reluctance machines Direct Torque Fuzzy PI according to claim 5, which is characterized in that magnetic
Chain estimation block ukCalculation formula is as follows:
Wherein, RKFor K phase winding internal resistance, ikFor for K phase winding electric current, ekFor kth phase winding electromotive force,For kth mutually around
Group magnetic linkage, relative position angle of the θ between kth phase winding and rotor.
7. a kind of switched reluctance machines Direct Torque Fuzzy PI according to claim 5, which is characterized in that around
The relational expression of group electric current, voltage and stator magnetic linkage are as follows:
Wherein,For stator magnetic linkage, U is stator winding end voltage, and i is stator winding current, RsFor electronics winding internal resistance.
8. a kind of switched reluctance machines Direct Torque Fuzzy PI according to claim 5, which is characterized in that magnetic
The transformation for mula of chain transformaiton module is as follows:
Wherein,Component for total magnetic linkage in the direction space vector coordinate system real axis α,It is total magnetic linkage in space vector coordinate
It is the component of imaginary axis β axis direction,For the magnetic linkage of c phase winding,For b phase winding magnetic linkage,For a phase winding magnetic linkage, δ is magnetic linkage
Angle.
9. a kind of switched reluctance machines Direct Torque Fuzzy PI according to claim 2, which is characterized in that outer
Ring uses revolving speed fuzzy PI hybrid control, and fuzzy controller is used when system speed error is big, when speed error is less than setting value,
It is switched to PI controller；Fuzzy controller is input with speed error e and error change amount ec, is obscured according to fuzzy rule
After reasoning, then pass through anti fuzzy method, precisely controlled variable.
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| CN110829932A (en) * | 2019-11-15 | 2020-02-21 | 南京理工大学 | Direct torque control system and method for transverse flux switch reluctance motor |
| CN111654218A (en) * | 2020-06-10 | 2020-09-11 | 大连海事大学 | Switched reluctance motor torque distribution function control system with improved fuzzy control |
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| CN110829932A (en) * | 2019-11-15 | 2020-02-21 | 南京理工大学 | Direct torque control system and method for transverse flux switch reluctance motor |
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Application publication date: 20190111 |