摘要
针对内燃机车变频器受开关频率限制的问题,通过采用分段调制方法来研究不同模式PWM之间的切换条件,实现异步PWM、同步PWM、SHEPWM PWM和方波之间的平滑过渡。试验也验证了切换策略的正确性。
According to the restriction of switching frequency in diesel locomotive converter, a subsection modulation technique was used, the transitive strategy was proposed to realize smooth transition of individual modes including the asynchronous PWM, synchronous PWM, SHEPWM and the squire waveform. The experiment results proved the validity of the strategy.
出处
《机车电传动》
北大核心
2014年第5期12-14,共3页
Electric Drive for Locomotives
关键词
分段调制
变频器
特定消谐PWM
中压大功率
动态切换
内燃机车
异步PWM
同步PWM
subsection modulation
converter
selective harmonic elimination pulse width modulation（SHEPWM）
medium voltage and high power
dynamic switching
diesel locomotive
asynchronous PWM
synchronous PWM
