电力系统自动化2011，Vol.35Issue(2)：73-78,6.
三相单级光伏并网系统对配电网侧负荷建模的影响
Impact of Three-phase Single-stage Photovoltaic System on Distribution Network Load Modeling
摘要
Abstract
This paper builds a MATLAB/Simulink dynamic model of three-phase single-stage photovoltaic system connected with distribution network, and its external characteristics is studied. The research results show that the model frame of the generalized load model of distribution network which contains three-phase single-stage photovoltaic system can be obtained by adding a variable active power source to the fictitious bus of conventional synthesis load model. Seven parameters to be identified are added to that of the conventional synthesis load model, I.e. three characteristic parameters of the photovoltaic array, the capacity of the electric capacitor in parallel with photovoltaic array, the proportion of three-phase single-stage photovoltaic system relative to pure load, the proportion amplification constant and the integral amplification constant of voltage regulator. A parameters identification strategy is proposed. Firstly the loads are aggregated. Then the low-sensitive parameters are fixed as aggregation values, while high-sensitive parameters are identified near the aggregation value by genetic algorithm. The characteristic fitting capability and the generalization capability of the proposed generalized load model are validated by a simulation example.关键词
广义负荷建模/光伏发电/分布式电源/参数辨识/模型结构/模型泛化能力Key words
generalized load modeling/ photovoltaic generation/ distributed generator/ parameter identification/ model frame/model generalization capability引用本文复制引用
张剑,孙元章..三相单级光伏并网系统对配电网侧负荷建模的影响[J].电力系统自动化,2011,35(2):73-78,6.基金项目
国家科技支撑计划重点项目(2008BAA13B04). （2008BAA13B04）
