复功率电源的元件功率分量理论与仿真

基于支路复功率分量理论^〔1〕，推导了具有多条串并联等效支路的电力元件上复功率损耗和潮流分量的准确计算公式。建立了电力元件上复功率损耗分量与电源之间的准确对应关系和电力元件首、末端潮流分量之间的非线性关系。将传统的只适用于无损网络的流追踪法推广到有多等效支路的元件构成的有损网络，提出了复功率地节点负荷和元件功率分量贡献的有效计算方法，为电源对电力系统元件利用份额的唯一性和深入研究输电服务奠定了理论基础。多个系统的数字仿真结果验证了该方法的正确性和有效性。

THEORY OF ELEMENT COMPLEXPOWER COMPONENTS INCURRED BY INDIVIDUAL GENERATORS AND SIMULATIONS

Based on the theory of branch complex power components incurred by individual generators [1] ,accurate formulas are derived to determine complex loss and flow components in power elements with multi equivalent series and parallel branches.The accurate relationships between element complex loss components and individual generators are established.The nonlinear relationships between the element inflow and outflow power components are put forward.The traditional electricity tracing method just applicable for lossless networks is extended to deal with lossy networks consisted of general power elements.An efficient algorithm for finding the contributions of individual generators to complex loads and element complex flow components is presented.The proposed method lays theoretically a new foundation for the study of transmission service in power markets.Staring from power flow solutions,simulation results of different power networks show that the proposed method is correct and effective.