A motor control method, device, storage medium and motor
A technology of motor control and control unit, which is used in motor generator control, control of electromechanical transmission, electronic commutation motor control, etc., can solve the problems of affecting the motor, affecting the accuracy of the three-phase current structure of the motor, etc. performance, realize fault tolerance and current reconstruction, and avoid the effect of reconstruction failure
Active Publication Date: 2021-01-29
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0006] The purpose of the present invention is to provide a motor control method, device, storage medium and motor to solve the problem that the failure of the current sensor affects the structural accuracy of the three-phase current of the motor, and then affects the safety of the motor operation, so as to improve the The effect of motor operation safety
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[0041] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0042] According to an embodiment of the present invention, a motor control method is provided, such as figure 1 A schematic flow diagram of an embodiment of the method of the present invention is shown. The motor control method may include: step S110 to step S130.
[0043] At step S110, it is determined whether the current sensor of the motor fails.
[0044] O...
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The invention discloses a motor control method, device, storage medium and motor. The method includes: determining whether a current sensor of the motor fails; if the current sensor of the motor fails, obtaining the three-phase current of the motor Estimated value: using the estimated value of the three-phase current of the motor as the measured value of the three-phase current of the motor to realize the reconstruction of the three-phase current of the motor, and obtain the reconstructed value of the three-phase current. The solution of the present invention can solve the problem that the failure of the current sensor affects the structural accuracy of the three-phase current of the motor, thereby affecting the operation safety of the motor, and achieves the effect of improving the operation safety of the motor.
Description
technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a motor control method, device, storage medium and motor, and in particular to a sensor fault phase current reconstruction method, device, storage medium and motor based on functional safety. Background technique [0002] Whether the car can run safely is related to the lives of passengers and pedestrians. The vehicle drive motor system is one of the core components of electric vehicles, which can convert the electric energy of the power battery into mechanical energy to provide driving force for the vehicle. The vehicle drive motor system is generally composed of a motor controller and a motor. The control unit of the motor is composed of a control unit, a drive circuit, a voltage sensor, a current sensor, a temperature sensor, and a detection circuit. [0003] During the operation of the motor, the current sensor samples the three-phase current of the motor. Once th...
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IPC IPC(8): H02P21/14H02P21/22
CPCH02P21/14H02P21/22
Inventor 牛高产陈建清张晓庆黄奇卉
Owner GREE ELECTRIC APPLIANCES INC