对称交流 meaning in English

symmetrical alternating current

This paper put forward the realization method of a kind of multi - function general use inverter system which added other functions based on the independent sine wave inverter , it not only can be used as independent inverter power supply but can be used as an in - support mode ups which realize synchronous with the phase of power grid voltage and realize to switch with power grid mutually , it also can realize three phase ac output by the combination of three synchronous inverters , experiment proved it in this way has a stronger ability of resisting three phase unbalance load
本文提出了一种基于独立正弦波逆变器的功能之上复合其他功能而成的多功能通用逆变电源系统的实现方法，此系统不仅可以作为独立逆变电源使用，还可以与电网电压的相位同步，作为后备式正弦波ups使用，在逆变电源和电网的相互切换时能做到对负载无影响，同时还可以由三台逆变器进行组合自同步实现三相对称交流输出，实验证明这种方式具有较强的抗三相不平衡负载的能力。