CN109742919A - Switched reluctance machines sensor redundancy system and automatic switching method - Google Patents
Switched reluctance machines sensor redundancy system and automatic switching method Download PDFInfo
- Publication number
- CN109742919A CN109742919A CN201910090996.2A CN201910090996A CN109742919A CN 109742919 A CN109742919 A CN 109742919A CN 201910090996 A CN201910090996 A CN 201910090996A CN 109742919 A CN109742919 A CN 109742919A
- Authority
- CN
- China
- Prior art keywords
- sensor
- signal
- switched reluctance
- motor
- reluctance machines
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Control Of Electric Motors In General (AREA)
Abstract
The invention belongs to electric machine speed regulation technical fields, more particularly, to a kind of switched reluctance machines sensor redundancy system and automatic switching method, it is characterized by comprising the magnet ring supporting elements being connected with motor shaft for switched reluctance machines sensor redundancy system, the fixed magnet ring on this magnet ring supporting element, several sensor boards positioned at magnet ring periphery, the interface card being connected with this several sensor board by signal wire, Ns Hall sensor on sensor board is set, signal output interface I on sensor board upper edge is set, two signal input interfaces I on two edge of interface card are set, a signal output interface II on interface card is set, this signal output interface II is connected with motor control panel.The present invention and extraneous line are simple, and strong antijamming capability, error is small, are suitable for bad environments occasion, the automatic switching function of fault sensor may be implemented, improve the non-failure operation time of speed-regulating system.
Description
Technical field
The invention belongs to electric machine speed regulation technical field, more particularly, to a kind of switched reluctance machines sensor redundancy system and
Automatic switching method.
Background technique
With the development of power electronic technique, control technology, switched reluctance machines speed regulating control technology is enable to send out rapidly
Exhibition.The control of switched reluctance machines needs to obtain rotor-position.The magnetic resistance of each phase magnetic circuit of switched reluctance machines with rotor angle
Position and become, to make its normal work, it is necessary to open or turn off the electricity of corresponding phase winding when rotor goes to appropriate location
It is synchronous with corresponding rotor-position to guarantee the electric current of each phase for stream, and in rotor rotation process always each phase of correct switch around
Group.Therefore the Angle Position detection of rotor is a very important link.Because of sensorless technology and immature, performance is not
Height, thus currently on the market switched reluctance machines product based on band position sensor product, and it is most of be optoelectronic switch (suddenly
You switch) formula position sensor.Its principle is the number of phases according to switched reluctance machines, and the different several position sensors of setting are used
In obtaining position of the rotor relative to stator, mutually exports and test the speed according to the control of the signal of sensor.However this sensor according to
So there is the deficiency of itself: 1, sensor guard grade is relatively low, and vulnerable to the influence of dust, rainwater, sensor is easy to aging, damages
It is bad；
2, the machining accuracy that photoelectric sensor code-disc is depended on to the detection of motor position, when code-disc machining accuracy is not high, shadow
The precision that speed calculates and motor angle controls is rung, each phase current imbalance, motor oscillating, noise when motor control are easily led to
Greatly, and controller power device is easily damaged.
Summary of the invention
Easy to operate the object of the present invention is to provide a kind of strong antijamming capability, error is small, and degree of protection is high, Ke Yishi
The automatic switching function of existing fault sensor, improves the switched reluctance machines sensor redundancy of speed-regulating system non-failure operation time
System and automatic switching method.
The purpose of the present invention is what is realized by following technical proposals:
Switched reluctance machines sensor redundancy system of the invention, it is characterised in that the magnetic being connected including the motor shaft with motor
Ring supporting element, the fixed magnet ring on this magnet ring supporting element are fixed on the electric motor end cap and are located at the magnet ring periphery
Several sensor boards, the interface card being connected with this several sensor board by signal wire are arranged in the sensor board
On Ns Hall sensor, the signal output interface I on the sensor board upper edge is set, and setting is in the interface electricity
A signal output interface II on the interface card is arranged in two signal input interfaces I on the edge Ban Liang of road, this
Signal output interface II is connected with motor control panel,
Be equipped in the interface card multiple selector, fault detection module, failure identification module, input switching switch and
Output dip switch, two signal input interfaces and a signal output interface II with the multiple selector phase
Connection.
The sensor board and interface card is integrated into sensor integration plate, thus the signal on sensor integration plate
Output interface III is connected with the motor control panel.
The number of the Ns Hall sensor is arranged according to the number of phases Ns of motor.
When the described number of motor phases Ns > 3, the number of Hall sensor can negate mode by signal symmetry and reduce
Number.
The magnet ring carries out 2Nr sections of radial magnetizings according to rotor number of poles Nr.
A kind of automatic switching method of switched reluctance machines sensor redundancy system, which is characterized in that the switching magnetic-resistance
Electromechanical transducer redundant system is any switched reluctance machines sensor redundancy system in the claims 1-5；Institute
The method of stating includes:
It is magnetized magnet ring based on Hall sensor and radial square wave, carries out position detection, and generate detection information；
The motor control that speed, rotor-position signal pass through the signal output interface connection switch reluctance motor of interface card
Plate, to realize to motor speed closed-loop control；
Interface card circuit includes multiple selector, fault detection module, failure identification module, input switching switch, output
Switching switch, signal input interface, signal output interface；It is closed output dip switch, operation input switching switch, which is in, not to be connected
State is connect, signal input interface, which receives, comes from two or more sensor signals, and two or more fault detection module judgements should
Whether sensor is working properly, and output failure combinational logic is used for the selection signal of multiple selector, and selection one is trouble-free
Output of the sensor signal as multiple selector, the motor control panel through signal output interface connection switch reluctance motor；
Output dip switch is opened, switch realization is switched by operation input and manually selects sensor.
The detection method of the fault detection module are as follows: judge input sensor signal whether simultaneously for height or simultaneously
To be low, if it is, latching the signal, output fault logic believes level number.
The failure identification module is one group of fixed logic level signal identical with sensor signal digit, when all
Input sensor signal breaks down, multiple selector selection this group of signal of output, the motor control for switched reluctance machines
The breakdown judge that making sheet fails to electromechanical transducer.
Advantages of the present invention:
Switched reluctance machines sensor redundancy system of the invention and automatic switching method, it is simple with extraneous line, it is anti-interference
Ability is strong, easy to operate, and error is small, and due to no optical element, resistance to greasy dirt is firm, and entire detection device degree of protection is high, is suitble to
For bad environments occasion, the automatic switching function of fault sensor may be implemented, improve the failure-free operation of speed-regulating system
Time.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is switching circuit figure of the invention.
Fig. 3 is the structural schematic diagram of the embodiment of the present invention 2.
Fig. 4 is the switching circuit figure of the embodiment of the present invention 2.
Specific embodiment
A specific embodiment of the invention is further illustrated with reference to the accompanying drawing.
As shown in Figs 1-4, switched reluctance machines sensor redundancy system of the invention, it is characterised in that including with motor
The magnet ring supporting element 4 that motor shaft is connected, the fixed magnet ring 3 on this magnet ring supporting element 4, be fixed on the electric motor end cap and
Several sensor boards 1 positioned at 3 periphery of magnet ring, the interface circuit being connected with this several sensor board 1 by signal wire
The Ns Hall sensor 5 on the sensor board 1 is arranged in plate 2, and the signal on 1 upper edge of sensor board is arranged in
Two signal input interfaces I 7 on 2 liang of edges of the interface card are arranged in output interface I 6, and setting is in the interface electricity
A signal output interface II 8 on road plate 2, this signal output interface II 8 are connected with motor control panel 9,
It is equipped with multiple selector 10 in the interface card 2, fault detection module 11, failure identification module 12, inputs and cuts
Change switch 13 and output dip switch 14, two signal input interfaces 7 and a signal output interface II 8 with it is described
Multiple selector 10 be connected.
The sensor board 1 and interface card 2 is integrated into sensor integration plate 15, thus on sensor integration plate 15
Signal output interface III 16 be connected with the motor control panel 9.
The number of the Ns Hall sensor 5 is arranged according to the number of phases Ns of motor.
When the described number of motor phases Ns > 3, the number of Hall sensor 5 can negate mode by signal symmetry and reduce
Number.
The magnet ring 3 carries out 2Nr sections of radial magnetizings according to rotor number of poles Nr.
A kind of automatic switching method of switched reluctance machines sensor redundancy system, which is characterized in that the switching magnetic-resistance
Electromechanical transducer redundant system is any of the above-described switched reluctance machines sensor redundancy system；The described method includes:
It is magnetized magnet ring 3 based on Hall sensor 5 and radial square wave, carries out position detection, and generate detection information；
The motor control that speed, rotor-position signal pass through the signal output interface connection switch reluctance motor of interface card 2
Plate 9, to realize to motor speed closed-loop control；
2 circuit of interface card includes multiple selector 10, and fault detection module 11, failure identification module 12, input, which switches, opens
Pass 13, output dip switch 14, signal input interface, signal output interface；It is closed output dip switch 14, operation input switching
Switch 13 is in not-connected status, and signal input interface, which receives, comes from two or more sensor signals, two or more failures
Detection module 11 judges whether the sensor is working properly, and selection of the output failure combinational logic for multiple selector 10 is believed
Number, output of the trouble-free sensor signal as multiple selector 10 is selected, through signal output interface connection switch magnetic
Hinder the motor control panel 9 of motor；
Output dip switch 14 is opened, the realization of switch 13 is switched by operation input and manually selects sensor.
The detection method of the fault detection module 11 are as follows: judge the sensor signal of input whether simultaneously to be high or same
When to be low, if it is, latching the signal, output fault logic believes level number.
The failure identification module 12 is one group of fixed logic level signal identical with sensor signal digit, works as institute
There is output transducer to break down, selection this group of signal of output of multiple selector 10, the motor control for switched reluctance machines
The breakdown judge that making sheet 9 fails to electromechanical transducer.
Embodiment 1: as depicted in figs. 1 and 2,
System is made of two sensor boards 1, interface card 2, magnet ring 3, magnet ring supporting element 4.According to motor on sensor board 1
The number of phases arrange 3 Hall sensors 5 and its relevant signal processing circuit, the edges of boards of sensor board 1 are along arrangement signal output
Interface I 6.Sensor board 1 is connected to interface card 2 by signal wire, and there are two signal inputs to connect for arrangement on interface card 2
Mouth I 7, faulty automatic switch-over circuit is arranged in a signal output interface II 8, and the feelings of 1 failure of sensor board all the way may be implemented
Under condition, spare sensor board 1 is automatically switched to.Magnet ring 3 connects according to 16 sections of radial magnetizings of rotor number of poles, sensor board 1
Interface circuit board 2 is fixed on electric motor end cap；Magnet ring 3 is fixed on magnet ring supporting element 4, and magnet ring supporting element 4 connects motor shaft, with motor
Axis rotates synchronously.Speed, rotor-position signal pass through the II 8 connection switch reluctance motor of signal output interface of interface card 2
Motor control panel 9, thus realize to motor speed closed-loop control.
The switched reluctance machines sensor redundancy system of the embodiment of the present invention 1, it is automatic when may be implemented sensor fault
Switching, 2 circuit of interface card include multiple selector 10, and fault detection module 11, failure identification module 12, input, which switches, opens
Pass 13, output dip switch 14, signal input interface I 7, signal output interface II 8.Its working principle is that closure output switching
Switch 14, operation input switching switch 13 are in not-connected status, and input interface, which receives, comes from two or more sensor signals,
Two or more fault detection modules 11 judge whether the sensor is working properly, and output failure combinational logic is used for multi-path choice
The selection signal of device 10 selects output of the trouble-free sensor signal as multiple selector 10, connects through signal output
The motor control panel 9 of II 8 connection switch reluctance motors of mouth.Output dip switch 14 is opened, switch 13 is switched by operation input
Also it may be implemented to manually select sensor.
Multiple selector 10 can be built by discrete devices such as data selectors, can also can be compiled using cpld or fpga etc.
Journey device is realized.
The detection method of fault detection module 11 be judge input sensor signal whether for height or be simultaneously simultaneously
Low, if it is, latching the signal, output fault logic believes level number.This module can realize with combinational logic gate circuit,
It can also be realized with programmable logic circuit.
Failure identification module 12 is one group of fixed logic level signal identical with sensor signal digit, when all outputs
Sensor breaks down, selection this group of signal of output of multiple selector 10, and the motor control panel 9 for switched reluctance machines is right
The breakdown judge of electromechanical transducer failure.
Automatic switch-over circuit can be individually placed in interface card 2, also be desirably integrated into sensor board 1, simplify installation knot
Structure.
Embodiment 2: as shown in Figure 3 and Figure 4,
Sensor board 1 and interface card 2 are integrated into sensor integration plate 15, thus the signal on sensor integration plate 15 is defeated
Outgoing interface III 16 is connected with the motor control panel 9.
System is made of two sensor integration plates 15, magnet ring 3, magnet ring supporting element 4.According to electricity on sensor integration plate 15
The number of phases of machine arranges 3 Hall sensors 5 and its relevant signal processing circuit, switching circuit, and edges of boards are along arrangement signal output
Interface III 16 and signal input interface II 17.Faulty automatic switch-over circuit is arranged in sensor integration plate 15, this biography may be implemented
In the case where 1 failure of sensor plate, backup sensors plate 1 is automatically switched to.Magnet ring 3 is filled according to 16 sections of radial directions of rotor number of poles
Magnetic, sensor integration plate 15 are fixed on electric motor end cap；Magnet ring 3 is fixed on magnet ring supporting element 4, and magnet ring supporting element 4 connects motor
Axis is rotated synchronously with motor shaft.Speed, rotor-position signal pass through the electricity of III 16 connection switch reluctance motor of signal output interface
Machine control panel 9, to realize to motor speed closed-loop control.
The switched reluctance machines sensor redundancy system of the embodiment of the present invention 2, it is automatic when may be implemented sensor fault
Switching, switching circuit include multiple selector 10, and fault detection module 11, failure identification module 12, input switches switch 13, defeated
Switch switch 14, signal input interface II 17, signal output interface III 16 out.II 17-1 of signal input interface is spare for connecting
Sensor board 1, II 17-2 of signal input interface are used to connect the sensor signal of current sensor plate 1, its working principle is that, it closes
Output dip switch 14 is closed, operation input switching switch 13 is in not-connected status, and signal input interface II 17, which receives, comes from two
A or multiple sensor signals, two or more fault detection modules 11 judge whether the sensor is working properly, export failure
Combinational logic is used for the selection signal of multiple selector 10, selects a trouble-free sensor signal as multiple selector 10
Output, the motor control panel 9 through III 16 connection switch reluctance motor of signal output interface.Output dip switch 14 is opened, is led to
Crossing operation input switching switch 13 also may be implemented to manually select sensor.
Multiple selector 10 can be built by discrete devices such as data selectors, can also can be compiled using cpld or fpga etc.
Journey device is realized.
The detection method of fault detection module 11 be judge input sensor signal whether for height or be simultaneously simultaneously
Low, if it is, latching the signal, output fault logic believes level number.This module can realize with combinational logic gate circuit,
It can also be realized with programmable logic circuit.
Failure identification module 12 is one group of fixed logic level signal identical with sensor signal digit, when all outputs
Sensor breaks down, and selection this group of signal of output of multiple selector 10 passes motor for switched Reluctance Motor Control plate
The breakdown judge of sensor failure.
Switched reluctance machines sensor redundancy system of the invention and automatic switching method, it is simple with extraneous line, resist
Interference performance is strong, easy to operate, and error is small, and due to no optical element, resistance to greasy dirt is firm, and entire detection device degree of protection is high,
Suitable for bad environments occasion, the automatic switching function of fault sensor may be implemented, improve the fault-free of speed-regulating system
Runing time.
Claims (8)
1. a kind of switched reluctance machines sensor redundancy system, it is characterised in that the magnet ring being connected including the motor shaft with motor
Supporting element, the fixed magnet ring on this magnet ring supporting element are fixed on the electric motor end cap and are located at the number of the magnet ring periphery
A sensor board, the interface card being connected with this several sensor board by signal wire are arranged on the sensor board
Ns Hall sensor, the signal output interface I on the sensor board upper edge is set, is arranged in the interface circuit
A signal output interface II on the interface card is arranged in two signal input interfaces I on two edge of plate, this letter
Number output interface II is connected with motor control panel,
Be equipped in the interface card multiple selector, fault detection module, failure identification module, input switching switch and
Output dip switch, two signal input interfaces and a signal output interface II with the multiple selector phase
Connection.
2. switched reluctance machines sensor redundancy system according to claim 1, it is characterised in that the sensor board
It is integrated into sensor integration plate with interface card, thus the signal output interface III on sensor integration plate and the motor
Control panel is connected.
3. switched reluctance machines sensor redundancy system according to claim 1, it is characterised in that the Ns Hall
The number of sensor is arranged according to the number of phases Ns of motor.
4. switched reluctance machines sensor redundancy system according to claim 3, it is characterised in that the number of motor phases
When Ns > 3, the number of Hall sensor can negate mode by signal symmetry and reduce number.
5. switched reluctance machines sensor redundancy system according to claim 1, it is characterised in that the magnet ring according to
Rotor number of poles Nr carries out 2Nr sections of radial magnetizings.
6. a kind of automatic switching method of switched reluctance machines sensor redundancy system, which is characterized in that the switching magnetic-resistance electricity
Machine sensor redundancy system is any switched reluctance machines sensor redundancy system in the claims 1-5；It is described
Method includes:
It is magnetized magnet ring based on Hall sensor and radial square wave, carries out position detection, and generate detection information；
The motor control that speed, rotor-position signal pass through the signal output interface connection switch reluctance motor of interface card
Plate, to realize to motor speed closed-loop control；
Interface card circuit includes multiple selector, fault detection module, failure identification module, input switching switch, output
Switching switch, signal input interface, signal output interface；It is closed output dip switch, operation input switching switch, which is in, not to be connected
State is connect, signal input interface, which receives, comes from two or more sensor signals, and two or more fault detection module judgements should
Whether sensor is working properly, and output failure combinational logic is used for the selection signal of multiple selector, and selection one is trouble-free
Output of the sensor signal as multiple selector, the motor control panel through signal output interface connection switch reluctance motor；
Output dip switch is opened, switch realization is switched by operation input and manually selects sensor.
7. the automatic switching method of switched reluctance machines sensor redundancy system according to claim 6, it is characterised in that
The detection method of the fault detection module are as follows: judge input sensor signal whether simultaneously for height or simultaneously be it is low, such as
Fruit is then to latch the signal, and output fault logic believes level number.
8. the automatic switching method of switched reluctance machines sensor redundancy system according to claim 6, it is characterised in that
The failure identification module is one group of fixed logic level signal identical with sensor signal digit, when all outputs sense
Device breaks down, and multiple selector selection this group of signal of output, the motor control panel for switched reluctance machines passes motor
The breakdown judge of sensor failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910090996.2A CN109742919A (en) | 2019-01-30 | 2019-01-30 | Switched reluctance machines sensor redundancy system and automatic switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910090996.2A CN109742919A (en) | 2019-01-30 | 2019-01-30 | Switched reluctance machines sensor redundancy system and automatic switching method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109742919A true CN109742919A (en) | 2019-05-10 |
Family
ID=66366785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910090996.2A Pending CN109742919A (en) | 2019-01-30 | 2019-01-30 | Switched reluctance machines sensor redundancy system and automatic switching method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109742919A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736681A (en) * | 2017-04-21 | 2018-11-02 | 庄立伟 | D.c. motor with multiplication torque |
| CN110752799A (en) * | 2019-10-31 | 2020-02-04 | 江苏科技大学 | Switching method and switching system for double-mode control of brushless direct current motor |
| CN110879523A (en) * | 2019-12-11 | 2020-03-13 | 中国人民解放军陆军工程大学 | Repair switching control module |
| CN112729186A (en) * | 2020-12-21 | 2021-04-30 | 珠海格力电器股份有限公司 | Fault processing method, device and system for displacement sensor and processor |
| CN114257046A (en) * | 2021-11-15 | 2022-03-29 | 华能铜川照金煤电有限公司 | Motor rotor state monitoring system and monitoring method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4434389A (en) * | 1980-10-28 | 1984-02-28 | Kollmorgen Technologies Corporation | Motor with redundant windings |
| CN103650327A (en) * | 2011-06-30 | 2014-03-19 | Ntn株式会社 | Motor drive device |
| CN206759281U (en) * | 2017-06-02 | 2017-12-15 | 无锡奥征科技有限公司 | Multigroup Hall switch motor |
| CN108134486A (en) * | 2018-02-13 | 2018-06-08 | 内蒙古幸汇国创重工有限公司 | One kind is based on redundant sensor motor speed acquisition system |
| CN209593243U (en) * | 2019-01-30 | 2019-11-05 | 辽宁国信科技有限公司 | Switched reluctance machines sensor redundancy system |
-
2019
- 2019-01-30 CN CN201910090996.2A patent/CN109742919A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4434389A (en) * | 1980-10-28 | 1984-02-28 | Kollmorgen Technologies Corporation | Motor with redundant windings |
| CN103650327A (en) * | 2011-06-30 | 2014-03-19 | Ntn株式会社 | Motor drive device |
| CN206759281U (en) * | 2017-06-02 | 2017-12-15 | 无锡奥征科技有限公司 | Multigroup Hall switch motor |
| CN108134486A (en) * | 2018-02-13 | 2018-06-08 | 内蒙古幸汇国创重工有限公司 | One kind is based on redundant sensor motor speed acquisition system |
| CN209593243U (en) * | 2019-01-30 | 2019-11-05 | 辽宁国信科技有限公司 | Switched reluctance machines sensor redundancy system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736681A (en) * | 2017-04-21 | 2018-11-02 | 庄立伟 | D.c. motor with multiplication torque |
| CN110752799A (en) * | 2019-10-31 | 2020-02-04 | 江苏科技大学 | Switching method and switching system for double-mode control of brushless direct current motor |
| CN110879523A (en) * | 2019-12-11 | 2020-03-13 | 中国人民解放军陆军工程大学 | Repair switching control module |
| CN110879523B (en) * | 2019-12-11 | 2023-01-24 | 中国人民解放军陆军工程大学 | Repair switching control module |
| CN112729186A (en) * | 2020-12-21 | 2021-04-30 | 珠海格力电器股份有限公司 | Fault processing method, device and system for displacement sensor and processor |
| WO2022134570A1 (en) * | 2020-12-21 | 2022-06-30 | 珠海格力电器股份有限公司 | Fault processing method, apparatus and system for displacement sensor, and processor |
| CN114257046A (en) * | 2021-11-15 | 2022-03-29 | 华能铜川照金煤电有限公司 | Motor rotor state monitoring system and monitoring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109742919A (en) | Switched reluctance machines sensor redundancy system and automatic switching method | |
| CN102290790B (en) | Fault detecting and protective circuit of brushless direct current motor | |
| EP3656639B1 (en) | Alternating current turnout equipment, system, and control method therefor | |
| CN104767429B (en) | Brshless DC motor power inverter power-on self-test device and self checking method | |
| US5708576A (en) | Fault tolerant power converter | |
| US8743573B2 (en) | Voltage inverter and method of controlling such an inverter | |
| CN101551441B (en) | Fault diagnosis method for power converter of switch reluctance motor | |
| CN106908722B (en) | A kind of diagnostic method of the phase current failure of switched reluctance machines | |
| CN103424651A (en) | Fault detection method for Hall position sensors | |
| CN103548254A (en) | Method and device for operating a brushless motor | |
| CN104734580A (en) | Dual-redundancy control method and system of brushless motor | |
| CN110949446B (en) | Control circuit and method for electronic turnout | |
| CN100431256C (en) | Fault diagnosis and fault-tolerant control method for brushless motor position signal | |
| CN108809173B (en) | Common-bus open-winding brushless doubly-fed wind generator system fault-tolerant control method | |
| CN103018615A (en) | Device and method used for detecting crowbar circuit in wind turbine generator | |
| CN209593243U (en) | Switched reluctance machines sensor redundancy system | |
| McCrow et al. | Fault tolerant drives for safety critical applications | |
| US4635045A (en) | Failed fuse detector and detecting method for rotating electrical equipment | |
| CA2260030A1 (en) | Switched reluctance machine capable of improved fault operation | |
| CN202127233U (en) | Power grid fault measuring and controlling device | |
| CN103026249A (en) | Method of detecting a fault in a permanent-magnet alternator and power supply device comprising a detection module | |
| CN109946567B (en) | Distributed intelligent FA fault positioning method based on direction identification | |
| US6038114A (en) | Motor controller having delta motor wiring error detection capability | |
| CN109917275A (en) | A kind of fault detection method, system, device and readable storage medium storing program for executing | |
| CN115508742A (en) | Open-circuit fault diagnosis method for doubly salient electro-magnetic power converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200428 Address after: 101102 Room 101, floor 1, building 1, yard 7, Xingmao 1st Street, Tongzhou District, Beijing Applicant after: Beijing dakohuan Transmission Technology Co., Ltd Applicant after: Ding Jinlong Address before: 114000 No. 427 Tonghai Road, Qianshan District, Liaoning, Anshan Applicant before: LIAONING GUOXIN TECHNOLOGY Co.,Ltd. Applicant before: Ding Jinlong |
|
| TA01 | Transfer of patent application right |