蓄能技术一般有五个要求，储能密度大，变换损耗小，运行费用低，维护较容易，不污染环境。

Generally, a five requirements for the storage power station: energy density, transform consumption, lower operating costs, easier maintenance, not pollute the environment.

youdao

基于这种变频法思想，结合傅里叶变换频谱分析法推导了介质损耗参数的工频等效计算公式和算法。

Applying Fourier transform frequency spectrum analysis, the equivalent formula and arithmetic for calculating the dielectric loss at power frequency are deduced.

youdao

双空间矢量调制两级协调控制能实现整流级零电流换流，极大地减少了开关损耗，提高了变换器的效率。

Double space vector modulation can realize zero current commutation of the rectifier side, greatly reduce the switch loss, and improve the efficiency of the converter.

youdao