A Permanent Magnet Synchronous Motor Simulator Based on Voltage Feedforward and Current Feedback Control

A permanent magnet synchronous motor and voltage feedforward technology, applied in the direction of motor generator testing, etc., can solve the problems of inability to realize accurate simulation of motor characteristics, affect system stability, system oscillation, etc., achieve flexible testing, improve dynamic response speed, good versatility

Active Publication Date: 2021-09-03
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
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Problems solved by technology

However, since the motor controller generally adopts the current loop control, the motor simulator adopts the current loop control, which will bring about the problem of control conflict, cause system oscillation, and affect the stability of the system
At the same time, due to the nonlinear and time-varying characteristics of the control process, it is impossible to accurately simulate the characteristics of the motor using conventional PID control.

Method used

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  • A Permanent Magnet Synchronous Motor Simulator Based on Voltage Feedforward and Current Feedback Control
  • A Permanent Magnet Synchronous Motor Simulator Based on Voltage Feedforward and Current Feedback Control
  • A Permanent Magnet Synchronous Motor Simulator Based on Voltage Feedforward and Current Feedback Control

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Embodiment Construction

[0051] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are 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.

[0052]A permanent magnet synchronous motor simulator based on voltage feedforward and current feedback control provided by the present invention, such as figure 1 , 2 shown, including:

[0053] Voltage acquisition circuit, current acquisition circuit, real-time processor, power stage converter, coupling filter circuit;

[0054] The external device of the simulator includes a motor controller, a left DC power supply connected to the motor controller, and a right DC power supply connected to the power stage co...

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Abstract

The invention provides a permanent magnet synchronous motor simulator based on voltage feedforward and current feedback control. The interface algorithm based on voltage feedforward and current feedback control avoids the conflict of current loop control and improves the stability of the system. In the simulator of the present invention, the voltage feedforward improves the dynamic response speed of the system, and the current feedback improves the tracking accuracy of the system. Therefore, the motor simulator can achieve the goals of high speed and high precision at the same time, and can realize different power levels of motors. Feature simulation, flexible testing, and good versatility.

Description

technical field [0001] The invention relates to the technical field of motor hardware-in-the-loop testing, in particular to a permanent magnet synchronous motor simulator based on voltage feedforward and current feedback control. Background technique [0002] The wide application of permanent magnet synchronous motors puts forward higher requirements for the electric drive test system. The traditional mechanical test platform cannot meet the test requirements due to the shortcomings of large test space requirements, long test cycle, high test cost, and difficult fault configuration. The motor simulator is a simulation test technology that uses digital simulation and power electronic devices to simulate the characteristics of real motors. Through flexible configuration, it can realize the simulation of different working conditions of different motors, which can greatly shorten the test period and reduce the test cost. [0003] As the core of the motor simulator control, the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/34
CPCG01R31/34
Inventor 王志福孙庆乐孙逢春
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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