【摘要】 为了改善逆变器的输出,对死区效应进行了分析,提出了一种新型的在线补延时偿算法.该算法可以省掉开关器件没有必要的开通和关断,不需要任何额外的硬件电路、离线的实验测量,算法实现简单,输出波形谐波含量小,较好地解决了系统在低频时输出电流的脉动;适用于永磁同步电机.通过DSP TMS320F2812为开发平台的实验样机进行了实验,结果表明,该算法具有良好的在线补偿效果.更多还原

【Abstract】 In order to improve the output of inverter,the dead-time effect was analyzed,and a new on-line dead-time time delay compensation algorithm was proposed for improving the inverter output performance.The proposed algorithm consists of forbidding unnecessary triggers for the inverter switches and do not need any additional circuits and off-line experimental measurement.The realization of algrithm is very simple,the harmonics in output waveform are small,and the algrithm resoves the pulsant when the system works at the low frequency.The proposed algorithm was applied to a PM synchronous motor drive system.This experiment was realized on the platform of TMS320F2812.The experimental results demonstrate the effectiveness of the proposed algorithm.更多还原