脉冲宽度调制
电动机驱动
滤波器(信号处理)
伺服电动机
LC电路
控制理论(社会学)
伺服驱动
交流电动机
计算机科学
电子工程
电压
材料科学
工程类
电气工程
电容器
机械工程
人工智能
控制(管理)
作者
Zekai Lyu,Ming Yang,Donglin Xu,Shuyu Shang,Dianguo Xu
标识
DOI:10.23919/icpe2019-ecceasia42246.2019.8796848
摘要
This paper presents a gallium nitride (GaN) - based servo motor drive system. Compared to actual inverters based on insulated gate bipolar transistors (IGBTs), the proposed design extends the pulse width modulation (PWM) frequency to 100 kHz. This allows motor filters with small component sizes. Based on this, an LC filter is added to the motor drive system, and an undamped resonance suppression algorithm is proposed to suppress the resonance introduced by the filter. By adding a proper time delay, system can be stable without any additional sensors or power losses. As a result, ideal sinusoidal line-line voltage at the motor terminals, high motor efficiency and low switching noise are achieved.
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