变电站电气设备
substation electrical equipment
变电站电气主接线
substation bus arrangement
变电站电压无功控制
voltage quality control(VQC) of substation
电力系统配电变电站
power system distributed substation
Buck三电平变换器
buck three-level converter
PWM Buck 三电平变换器
pulse width modulation buck three-level converter
半桥三电平变换器
Half-bridge Three-level Converter
单元串联多电平变换器
cascaded multilevel convetor
多电平电流调节器
multilevel current regulator