解耦-补偿牛顿型三相潮流

首次将三相潮流计算中三相约束条件转化为单相正序约束条件，不仅简化了分析，而且 为直接采用单相潮流算法铺平了道路。将性能良好的牛顿-拉夫逊法、P-Q分解法与电力 网元件的三相解耦或三相解耦-补偿模型结合，形成了性能优良的解耦-补偿牛顿型三相潮 流算法——即解耦-补偿牛顿-拉夫逊法和解耦-补偿P-Q分解法。提出的三相潮流算法 不仅适合于不对称三相电力系统正常运行方式的分析，而且也适合于不对称三相电力系统非 正常运行方式，如稳态单相断线或开路的分析。算例表明，两种方法具有良好的收敛特性和 快速的计算速度，且非常适于并行计算。

DECOUPLING COMPENSATION NEWTON TYPE THREE PHASE LOAD FLOW

In this paper, with the incorporation of decoupling-compensation unbalanced network modelsand the transformation of three-phase bus specifications into positive single-phase bus specifications withany conventional single-phase load flow model , two novel decoupling-compensation Newton type three-phase load flow algorithms are proposed , which make use of special characteristics of power system net-works to achieve computational efficiency. These algorithms have sound convergence characteristics, needless storage requirements and take less CPU time. The algorithms presented in this paper are not only suit-able for normal unbalanced three-phase load flow analysis but also for abnormal unbalanced three-phaseload flow analysis. In addition to their speed on sequential computers, the algorithms are also suitable forparallel processing, witch is very promising for both on-line and off-line large scale unbalanced three-phase load flow analysis. It is worthwhile to mention that the algorithms proposed can also be extended tounbalanced three-phase harmonic load flow study.