摘要
传统潮流计算中包含3种类型的节点,即PQ节点、PV节点和Vθ节点。潮流计算在数学上属于非线性代数方程组求解问题。潮流计算要可解,要求方程组中线性无关的方程数与未知量数目相等,对节点类型并没有限制。提出一种可考虑任意节点类型的节点类型扩展潮流算法,在许多潮流调整应用场合,采用该算法能够更方便地实现调节目标。给出基于快速分解法的节点类型扩展潮流计算的求解算法,并对节点类型扩展潮流计算的可解性问题进行详细讨论,给出一个直观的基于拓扑结构的节点类型扩展潮流可解性判据,并通过算例验证该可解性判据的有效性。
There are three types of buses in the ordinary load flow calculation, which are PQ, PV and Vθ. Since load flow calculation is to solve a set of nonlinear algebraic equations, it is necessary that the number of linearly independent equations equal to the number of unknown state variables, without limitation for bus types. A bus-type extended load flow algorithm which could consider all bus types was introduced in this paper. This proposed general method can make some load flow adjusting much easier. A fast decoupled load flow algorithm was used to solve this problem, and a proposed topology-based method was used to identify the solvability of the bus-type extended load flow. Numerical tests with various cases had been done to verify the solvability judgment.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2011年第13期79-85,共7页
Proceedings of the CSEE
基金
国家自然科学基金项目(50707013)~~
