电力系统自动化2016，Vol.40Issue(8)：51-56,6.DOI:10.7500/AEPS20150908012
适用于低电压穿越仿真的风电场内集电线路等值方法
Collector Network Equivalent Method of Wind Farm for Low Voltage Ride Through Simulation
摘要
Abstract
Based on the two-machine parallel model,a method of collector network equivalence for wind farm is presented, which is suitable for low voltage ride through(LVRT) simulation.The equivalence of line reactance is based on the principle that the output reactive power of wind farm at the point of common coupling(PCC)before and after the transformation should be consistent during the grid voltage dip,and the equivalence of line resistance is based on the principle that the active power losses of collector network should be equal.By the impedance transformation of collector network,the wind farm can be made equivalent to a single-machine model connected to the PCC through an equivalent impedance.The line impedance equivalent method proposed is applicable to the equivalence of collector networks with tree like,radial or hybrid topology,and the calculated parameters of line impedance are constant which is convenient for actual application.Simulation results show that the equivalent model has high precision during a power system fault.关键词
风电场/集电线路/等值模型/低电压穿越Key words
wind farm/collector network/equivalent model/low voltage ride through(LVRT)引用本文复制引用
陈钊,夏安俊,汪宁渤,乔颖,马彦宏..适用于低电压穿越仿真的风电场内集电线路等值方法[J].电力系统自动化,2016,40(8):51-56,6.基金项目
国家高技术研究发展计划(863计划)资助项目(2011AA05A104) （863计划）
国家电网公司科技项目(522727140006,52272714000Y)。This work is supported by National High Technology Research and Development Program of China (863 Program)(No.2011AA05A104) and State Grid Corporation of China(No.522727140006,No.52272714000Y) （522727140006,52272714000Y）
