基于派克变换的电力系统非全相故障的数值仿真  

Digital Simulations of Short-Circuit Fault in Power Systems Based on Park Coordinate Transformation

作　　者：戴家祯[1] 

机构地区：[1]深圳市能源集团有限公司

出　　处：《华中电力》1999年第5期11-14,共4页Central China Electric Power

摘　　要：介绍一种新的电力系统非全相故障管态过程的数值仿真方法，该方法通过派克变换，用dqo坐标系来描述电力系统的三相对称部分，用在d、q、o三轴瞬态伴随网络的故障支路分别接入等值电流源来模拟不同类型的非全相故障，从而达到简化计算过程和减少计算量的目的。分别推导和给出了在各种非全相故障条件下上述等值电流源的计算公式，并以一个简单的实例验证了该方法及所推导的计算公式的正确性。This paper presents a novel method for digi-tal simulahons of power systems with open-phase fau1t.With this method the fault-free parts of power systemsare simulated by decoupled dqo-coordinates while thefault is modeled with equivalent current resources cas-caded to the faulted branches of the equivalent transientnetworks.The calculation formulas of the above men-tioned equivalent currentS for different mpes of open-phase fault are deduced.A simPle examle is presentedto illustrate the useffoess of this method.

关 键 词：电力系统 故障 数值仿真 派克变换 

分 类 号：TM711[电气工程—电力系统及自动化] TM743