modulation coefficient meaning in English

调制系数

Based on the investigation with several voltage control methods , such as venturini method , instantaneous double - voltage synthesis method and space vector modulation method ( svm ) , three new control strategies are put forward . firstly , a time - varying modulation coefficient svm method is proposed to improve mc ' s anti - disturbance performance under the asymmetry input voltage . secondly , a 5 - state switching strategy is presented for mc controlled by the svm method , which reduces the commutation number and switching losses remarkably
在分析了venturini控制法、瞬时双电压法、空间矢量法等电压控制方法的基础上，提出了在非对称输入条件下矩阵变换器空间矢量法的时变调制比改进控制策略，提高了变换器的抗干扰性能；对空间矢量法的开关策略进行了研究，提出了新型5状态开关策略，在保证其他性能不受影响的条件下，减少了变换器的换流次数和开关损耗；提出了一种矩阵变换器单电压合成的新方法，它不仅使得变换器的控制简单，计算量减少，而且使得开关损耗达到最少。