风电场群的无功电压协调控制策略  

Study on Reactive Power and Voltage Coordinated Control Strategy of Wind Farm Group

作　　者：陈惠粉[1] 乔颖[1] 鲁宗相[1] 闵勇[1] 

机构地区：[1]电力系统国家重点实验室,清华大学电机系,北京市100084

出　　处：《电力系统自动化》2010年第18期78-83,共6页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(51077078);电力系统国家重点实验室专项资金(SKLD09M08);国家电网科研专项基金项目“大型互联电网机网协调控制策略研究”的资助~~

摘　　要：现有风电场无功电压控制模式仅考虑单个风电场的无功平衡,无法兼顾大型风电基地的电压综合控制需求。文中提出了风电场群的无功电压协调控制思路,以风电场群的汇集站为电压中枢点,以各风电场升压变压器的高压侧电压为约束,协调各风电场的无功调节装置动作。协调控制策略以多目标的优化模型为基础,应用遗传算法求解。对典型风电场群汇入系统的仿真分析表明,协调控制策略在提高电网的安全性和经济性方面较传统的各风电场单独控制策略具有较大的优越性。Current reactive power and voltage control strategy of wind farms in a same wind energy base aims at reactive power balance of single wind farm only,which cannot satisfy comprehensive voltage and reactive power control needs of the wind farm group in whole.Therefore,a reactive power and voltage coordinated control strategy for wind farm group is proposed.The area voltage control center monitors the pilot bus in the central substation where many wind farms are connected to,and coordinates all kinds of reactive power resources in different wind farms to regulate the voltage profile of all wind farms.The genetic algorithm is used to solve such a multi-objective optimization model.The simulation results of a typical wind power system show that the coordinated control strategy has better performance than the current individual one in respects of security and economy of the grid.

关 键 词：风电场群 笼型机风电场 双馈机风电场 无功电压协调控制 

分 类 号：TM614[电气工程—电力系统及自动化]