Motor control method and device

A control method and technology of a control module, which are used in motor generator control, control of electromechanical transmission devices, electronic commutation motor control, etc., can solve the problems of poor input signal tracking ability, divergence, and easy occurrence of oscillation, and simplify the control difficulty. Effect

Active Publication Date: 2021-07-02
WEICHAI POWER CO LTD +1
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  • Claims
  • Application Information

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Problems solved by technology

[0003] However, by e.g. figure 1 Compared with the input signal, the output signal is prone to oscillation or even divergence, and the tracking ability of the input signal is poor.

Method used

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Embodiment Construction

[0042] pass figure 1 The PI regulator shown in the figure controls the speed of the motor. Compared with the input signal, the output signal is prone to oscillation or even divergence, and the ability to track the input signal is poor.

[0043] Based on this, an embodiment of the present application provides a motor control method, which may include, for example: the motor control device obtains an intermediate result according to the target mechanical angular velocity of the motor, the first feedback signal and the first control module, and, according to The intermediate result, the second feedback signal and the second control module obtain the actual mechanical angular velocity of the motor, wherein the first feedback signal is determined according to the actual mechanical angular velocity, the first control module is used to realize proportional, integral and differential control, and the second The second feedback signal is determined according to the actual mechanical an...

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Abstract

The embodiment of the invention discloses a motor control method and device, and the method comprises the steps: obtaining an intermediate result according to the target mechanical angular velocity of a motor, a first feedback signal and a first control module, and obtaining the actual mechanical angular velocity of the motor according to the intermediate result, a second feedback signal and a second control module. Thus, through the design thought of the anti-saturation controller and the two-degree-of-freedom controller, the designed motor control device can well track input signals, coefficient feedback control is adopted in the control process, a complex state equation is not introduced for control and adjustment, the control difficulty is greatly simplified, and the control device of the motor corresponding to the control method of the motor can be simply and conveniently engineered.

Description

technical field [0001] The present application relates to the technical field of motors, in particular to a method and device for controlling a motor. Background technique [0002] At present, a proportional-integral (English: proportional integral, PI for short) regulator is usually used to control the rotational speed of the motor. The control block diagram of the PI regulator can be found in figure 1 , the input of the PI regulator is the target mechanical angular velocity, after the joint action of (α*Kp) and (Ki / s), the actual mechanical angular velocity of the motor is obtained through the model expression of the controlled motor, where Kp is the The proportional coefficient of the PI regulator, Ki is the integral coefficient of the PI regulator. In this way, the control of the motor speed is realized. [0003] However, by e.g. figure 1 Compared with the input signal, the output signal of the PI regulator shown in the way of controlling the motor speed is prone to ...

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Application Information

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IPC IPC(8): H02P21/00H02P21/20H02P21/14
CPCH02P21/0003H02P21/20H02P21/14Y02T10/72
Inventor徐亚美高乐高文进吕凤龙
OwnerWEICHAI POWER CO LTD