Intelligent control method of electrically-driven motor

An electric drive and intelligent control technology, which is applied in the direction of motor generator control, motor control, AC motor control, etc., can solve the problem of inability to perform detection and diagnosis well, reliability is not high enough, and the increase of system bandwidth affects the dynamic performance of the system And other issues

Inactive Publication Date: 2015-11-04
石成富
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are still some deficiencies or areas to be improved in the motor control method used in the electric drive system: its reliability is not high enough, and when the system has a winding open circuit, short circuit or position signal failure, it cannot be detected and diagnosed well, and ...

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  • Intelligent control method of electrically-driven motor
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  • Intelligent control method of electrically-driven motor

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Embodiment Construction

[0030] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can better understand the present invention.

[0031] Such as figure 1 As shown, it is a specific embodiment of an intelligent control method for an electric drive motor according to the present invention, and its specific implementation steps are:

[0032] (1) Collect the current i in the two sets of windings (windings a, b, c and windings x, y, z) of the electric drive motor through the Hall sensor a i b i c and i x i y i z , and then pass it through the abc / dq converter to get the respective actual current value i in the d-q coordinate system d1 i q1 and i d2 i q2 ;

[0033] (2) The rotor position signal θ of the electric drive motor is obtained by detecting and collecting the position detector 1 and the position detector 2 respectively 1 and θ 2 , and then differentiate the collected rotor posit...

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Abstract

Disclosed in the invention is an intelligent control method of an electrically-driven motor. According to the control method, with two sets of windings of the motor, the load is driven to be operated by the motor state by using a PI controller, an integral limiter, a prediction controller and an inverter; and the speed adjustment performance is good. The prediction controller is used for replacing the traditional current PI controller, so that the defect of the hysteresis characteristic of the current PI controller is overcome and the band width and dynamic performances of the system are improved. Besides, functions of redundancy communication, fault diagnosis, position signal fault detection and calibration are added and thus the winding open-circuit and short-circuit existence at the control system or position signal faults can be diagnosed and processed respectively. According to the invention, the method has characteristics of simpleness, easy implement, and high intelligence and reliability and the like; fault-tolerant control of the system open circuit, short circuit or position signal fault can be realized well; and the method is suitable for power driven occasions with high requirements of the dynamic performance and reliability.

Description

technical field [0001] The invention relates to the field of motor control technology, in particular to an intelligent control method for an electric drive motor. Background technique [0002] With the development of power electronics technology and power transmission technology, the motor control system has been widely used. However, in recent years, with the continuous development of new energy, power systems and technology, many motor control applications for electric drive systems have put forward higher requirements for their dynamic performance, reliability and intelligence. [0003] At present, there are still some deficiencies or areas to be improved in the motor control method used in the electric drive system: its reliability is not high enough, and when the system has a winding open circuit, short circuit or position signal failure, it cannot be detected and diagnosed well, and high fault-tolerant operation cannot be achieved. characteristics; and the current PI ...

Claims

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Application Information

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IPC IPC(8): H02P25/22H02P29/00H02P21/00
Inventor 石成富李喜生蒋顺恺
Owner 石成富
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