The low frequency switch shares the current of the high frequency switch and transfers the most power. The high frequency switchs transfer the small power and improve the dynamic response of the system.
低频开关对高频开关处理的电流进行了分流,传递大部分功率,减少了开关损耗;高频部分传递小部分功率,提高系统动态响应。
参考来源 - 双频逆变器供电的异步电机调速系统研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Experiments and simulations show that the proposed system can operate in audio switch frequency range without audio noise from the motor load, meanwhile, EMI can be limited to low level.
实验与仿真结果表明：该系统采用音频开关而不导致电机负载的音频噪声，同时使EMI能被限制在低电平。
It has characteristics of large current, high power, high voltage, high switch frequency, proven reliability, low losses and so on.
它具有大电流、高电压、开关频率高、高可靠性、结构紧凑、低损耗的特点。
The majority of the current pass the accessorial switch, but the switching frequency is low, so the switch consumption is not high.
辅助开关虽然流过大部分电流，但由于其开关频率低，因此开关损耗也不高。
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