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Dynamic tuning of current loop controller for a permanent magnet brushless motor
Dynamic tuning of current loop controller for a permanent magnet brushless motor
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机译:永磁无刷电机电流环控制器的动态调整
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摘要
A motor current controller for a permanent magnet AC motor achieves a decrease in bandwidth variations that would otherwise be caused by temperature changes. The current controller dynamically modifies the integral gain of a proportional-integral regulator in response to temperature-induced changes in motor resistance. The integral gain value is calculated to maintain a substantially constant loop bandwidth within a current loop primarily comprising the permanent magnet AC motor, semiconductor switches connected in an H-bridge configuration, and the proportional-integral regulator.
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