摘要
根据三电平理论设计了一种电磁轴承PWM开关功放。计算了三电平和两电平式PWM功放的电流纹波 ,得出三电平功放电流纹波和电源电压无关的结论。实验结果表明 ,三电平功放具有电流纹波小、电流响应快。
This paper introduces a three level PWM power amplifier designed for Active Magnetic Bearings(AMB).By calculating its current ripple, a conclusion that the current ripple is independent on DC link voltage is drawn. Experiment results show that this power amplifier has the characteristic of low current ripple, quick current response,high efficiency and so on.
出处
《电力电子技术》
CSCD
北大核心
2002年第3期13-15,共3页
Power Electronics
