power conversion system meaning in Chinese

动力转换系统

What is the definition of “ efficiency of a power conversion system “ ? how to measure
翻译：请问电源转换系统效率的定义，怎样去测量？
In general , most of recent wind power generation systems are connected to the local or global power grid via an electrical power conversion system , which mostly consists of two converters namely generator - side and grid - side converters
一般来说,大多数最近开发的风力发电系统都是通过电能变换装置与地区电网或者全国性电网相连。此种电能变换装置包括发电机侧变换器和电网侧变换器。