This thesis mainly focuses on the control strategy of a new cascade multilevel converter with single DC source.
本文对一种新型单电源级联多电平拓扑的控制策略进行了研究。
The DC/DC power converter is a high effective source device that can convert the DC voltage from one type to other type or several types.
DC/DC电源变换器是能将一种直流电压变换成另外一种或几种直流电压的高效供电装置。
The HVDC light is a new DC transmission technology based on voltage source converter(VSC)and pulse width modulation(PWM)technology.
建立了基于电压源换流器（VSC）的高压直流（HVDC）（VSC-HVDC）输电系统的标幺值数学模型。
Derived the formula for computing quadratic harmonics of output current in the single phase unit power factor ac DC converter based on analysis of the circuit module of the equivalent current source.
在基于对等效电流源电路模型分析的基础上，推导出了单相单位功率因数变流器输出电流二次谐波的计算公式，将输出二次谐波电流正、反向交替注入交流输入侧来抵消电流中的谐波。
Based on hysteresis current control, the basic operation principle of PWM AC DC voltage source converter is analysed. Moreover, the design concept of the control system is described in detail.
从滞后电流控制的角度阐述了PW M电压型高频整流器的基本工作原理，较详细地介绍了控制系统的设计思想。
Based on hysteresis current control, the basic operation principle of PWM AC DC voltage source converter is analysed. Moreover, the design concept of the control system is described in detail.
从滞后电流控制的角度阐述了PW M电压型高频整流器的基本工作原理，较详细地介绍了控制系统的设计思想。
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