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SLIDING MODE CONTROL STRATAGE AND REALIZATION OF AC VARIABLE SPEED DRIVE SYSTEM
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| Author(s) |
Min-Xun Chen; Hui-Jun Huang |
| Abstract |
This paper details an AC motor inverter-fed drive system which based on the sliding mode variable structure control strategy. The system structured with GTR-PWM inverter and controlled by the microcomputer. In the paper discussed the strategies of the sliding mode control and put forward a method that the measure of angle velocity only can judge the symbol of super surface, thereby determine the switch time and direction. As the result of the motor current exists harmonics, the paper gives a simple effect method to evalute the realtime effective value of the current at any frequency precisely and instantly. The system is examined at a 0.75 Kw AC motor, and got a satisfying dynamic performance such as rapid response, zero overshoot and robustness to the various of the motor parameter. |
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| Filename: | Unnamed file |
| Filesize: | 486 KB |
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| Type |
Members Only |
| Date |
Last modified 2021-02-09 by System |
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