基于改进遗传算法的风电场最优接入容量问题研究  

Research on the optimum capacity of wind power integration into power system based on an improved genetic algorithm

作　　者：韩伟[1] 蒋海峰[2] 雷文宝 李海涛[1] 祁佟 张飞 徐子鲲 王冰冰 HAN Wei;JIANG Haifeng;LEI Wenbao;LI Haitao;QI Tong;ZHANG Fei;XU Zikun;WANG Bingbing(State Grid Huaian Power Supply Company,Huaian 223002,China;School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]国网淮安供电公司,江苏淮安223002 [2]南京理工大学自动化学院,江苏南京210094

出　　处：《电力科学与工程》2019年第10期51-56,共6页Electric Power Science and Engineering

摘　　要：风电场接入系统极大地影响了电力系统的安全运行,确定其最优接入容量是风电场接入系统规划和运行的重要部分。首先分析了由异步风力发电机组构成的风电场的简化等值电路模型,实现了含异步风电场的电力系统潮流计算。建立了风电场接入系统的安全运行约束条件和最大接入容量的目标函数,提出了基于改进遗传算法的求解方法,引入精英保留策略和参数动态调整策略,提高了遗传算法的收敛速度和全局寻优能力。利用IEEE9节点系统作为仿真算例,验证了所提算法的有效性,并分析了节点电压和无功补偿对风电场最优接入容量的影响。Wind farm access to power system has a great influence on the safe operation of power system.To determine its optimum capacity is a significant step in wind farm planning and operation.Firstly,a simplified equivalent circuit steady-state model of wind farm composed of asynchronous wind turbines is established,and power flow calculation with asynchronous wind farms is realized.Then,the constraints and the object function of the wind farm capacity are established,and the problem is solved based on an improved genetic algorithm.Adopting the strategies of elitist preservation and dynamic control parameter adjustment to improve its convergence speed and global optimization ability.The effectiveness of the proposed method is verified by the simulation of IEEE9-node system,and the influence of node voltage and reactive compensation on the optimal access capacity of wind farms is analyzed.

关 键 词：风电 最优接入容量 改进遗传算法 无功补偿 

分 类 号：TM715[电气工程—电力系统及自动化]