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发明公开
CN110112930A 一种MMC子模块开关频率控制方法、装置及一种MMC 有权

一种MMC子模块开关频率控制方法、装置及一种MMC
摘要：
本发明涉及一种MMC子模块开关频率控制方法、装置及一种MMC，当采用保持因子排序法对子模块进行控制时，根据所需的开关频率以及子模块开关频率和开关频率保持因子的对应关系得到所需的开关频率对应的开关频率保持因子，该对应关系包括至少两个子模块开关频率以及与各子模块开关频率对应的开关频率保持因子；最后根据所需的开关频率对应的开关频率保持因子，采用保持因子排序法对子模块进行控制。通过这种开关频率的控制方法能够对MMC子模块的开关频率实现精确控制。
摘要（英）：

The invention relates to a method and device for controlling the switching frequencies of MMC sub-modules and a MMC. When the sub-modules are controlled by using a retention factor sorting method, a switching frequency retention factor corresponding to a required switching frequency is obtained according to a correspondence relationship between the required switching frequency and the switching frequencies of the sub-modules and the switching frequency retention factor, and the correspondence relationship includes at least two sub-module switching frequencies and switching frequency retentionfactors corresponding to the switching frequencies of the sub-modules. Finally, the sub-modules are controlled by using the retention factor sorting method according to the switching frequency retention factor corresponding to the required switching frequency. The switching frequencies of the MMC sub-modules can be accurately controlled through the switching frequency control method.

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