考虑分布式电源并网的风力发电站最大注入功率  

Research on the Maximum Injected Power of Wind Power Plants Considering Grid-Connected Distributed Generation

作　　者：郑志杰 李文升 田浩 冯亮[1] 杨波 吴肇赟 ZHENG Zhijie;LI Wensheng;TIAN Hao;FENG Liang;YANG Bo;WU Zhaoyun(Research Institute of Economics and Technology,State Grid Shandong Electric Power Company,Jinan 250021,Shandong,China;Beijing Huisi Huineng Technology Co.,Ltd.,Beijing 100080,China;State Key Lab of Control and Simulation of Power Systems and Generation Equipment(Dept.of Electrical Engineering,Tsinghua University),Beijing 100084,China)

机构地区：[1]国网山东省电力公司经济技术研究院,山东济南250021 [2]北京汇思慧能科技有限公司,北京100080 [3]电力系统及发电设备控制和仿真国家重点实验室(清华大学电机系),北京100084

出　　处：《电网与清洁能源》2024年第12期141-146,共6页Power System and Clean Energy

基　　金：国家重点研发计划项目(SQ2022YFE010405);国网山东省电力公司科技项目(2020A-007)。

摘　　要：风电注入功率会改变电网潮流分布,影响局部电网的节点电压,从而对电网运行的稳定性与可靠性造成较大影响。对考虑分布式电源并网的风力发电站最大注入功率展开研究。建立考虑分布式电源并网的风力发电站内的永磁同步发电机、二极管整流器以及DC/DC变换器的数学模型;利用Weibull分布函数表达风力发电站内风速,确定风速与风力发电站内风电机组输出功率的关系;设置配电网可以接收的最大风电功率作为优化目标,依据机会约束规划问题建立风力发电站最大注入功率的目标函数,并利用遗传算法求解该目标函数,输出风力发电站最大注入功率。实验结果表明,所提方法可以确定不同负荷变化、电容补偿容量以及风速变化时的风力发电站最大注入功率。The power injected by wind power plants will change the power flow distribution of the power grid,affect the node voltage of the local power grid,and thus has a greater impact on the stability and reliability of the power grid operation.Therefore,to improve the safety and reliability of wind power plants connected to the grid,this paper studies the maximum injection power of wind power plants considering the integration of distributed generation with the grid.The mathematical models of permanent magnet synchronous generator,diode rectifier and DC/DC converter in the wind power plant are established considering grid-connected distributed generation.Based on the established mathematical model,the Weibull distribution function is used to express the wind speed in the wind power plant,and determine the relationship between the wind speed and the output power of the wind turbine.The maximum wind power that can be received by the distribution network is set as the optimization objective of the maximum injected power,and the objective function of the maximum injected power of the wind power station is established according to the chance-constrained programming issue,and the genetic algorithm is used to solve the objective function of the maximum injected power of the wind power station to output the maximum injected power of the wind power station.The experimental results show that the designed method proposed in this paper can determine the maximum injection power of wind power plants with different load changes,capacitor compensation capacity and wind speed changes.

关 键 词：分布式电源 并网 风力发电站 最大注入功率 分布函数 风电机组 

分 类 号：TM614[电气工程—电力系统及自动化]