... tree branch voltage vector 树支电压向量 voltage vector diagram 电压矢量图 branch voltage vector 支路电压向量 ...
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The voltage vector diagram is a very useful method that can make a qualitative analysis of the steady values of power system in normal and fault conditions.
定性地分析电力系统正常运行状态和故障后的稳态量时，电压相量图法是十分有用的工具。
In this paper the principle of a 3-phase voltage-typed PWM rectifying circuit is analyzed and both the vector diagram of rectifying circuit and a series of formula are also offered.
本文分析了三相电压型PWM整流电路的工作原理，给出了整流电路的相量图和一系列公式。
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