并与传统的功率理论表达式相比较，具有一定的一致性和物理意义。
Compared with the traditional power theory expression, this algorithm has certain uniformity and its physics significance.
利用功率平衡理论进行故障测距能够在原理上克服传统阻抗法普遍存在的受故障电阻影响的缺陷。
The location results are always affected by fault resistance in almost all conventional impedance methods in fault location, but the application of power balance theory can overcome the shortcoming.
传统的根据无功功率的定义来计算SVC系统中的无功功率的方法难以满足快速响应要求，因此本文采用瞬时无功理论来实现SVC系统中无功功率的计算和检测。
The traditional methods based on definitions of reactive power can not fulfill the demand, so the paper employs the instantaneous reactive power theory to detect the reactive power in SVC system.
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