基于机会约束规划的汇流风电场穿透功率极限计算  

Power Penetration Limit Calculation of Converged Wind Farms Based on Chance-Constrained Programming

作　　者：高正平 赵宏大 王哲 戴琦 陈永祥[2] 

机构地区：[1]国网江苏省电力公司电力经济技术研究院,江苏南京210009 [2]河海大学能源与电气学院,江苏南京211100

出　　处：《电网与清洁能源》2016年第5期128-133,141,共7页Power System and Clean Energy

基　　金：国家自然科学基金项目(51422701)~~

摘　　要：大规模的风力发电并网给电网的运行与稳定带来了一系列的问题,研究风力发电的穿透功率极限对于风力发电并网的规划以及运行有着重要意义。基于随机规划理论,利用拉丁超立方采样(latin hypercube sampling,LHS)处理汇流风电场的相关性风速数据,提出了汇流风电场穿透功率极限计算方法,计算中考虑了在同一汇流点不同风电场的风速随机性和相关性,计算得到含有汇流风电场发电系统的线路潮流,进一步基于机会约束规划,利用改进的粒子群算法计算得到汇流风电场的穿透功率极限。在IEEE30系统算例上验证了计算方法的有效性,并简要分析了风力发电位于不同接入点对穿透功率极限的影响。Integration of large-scale wind power brings a series of problems to the operation and stability of the power system,so research on the wind power penetration limit is of great significance for wind power generation and network planning and operation.This paper presents a method to calculate the power penetration limit of converged wind farms based on stochastic programming theory and Latin hypercube sampling is used to simulate the correlated wind speeds of converged wind farms.Considering randomness and correlations of the wind speed between converged wind farms,it analyzes the load flow of the power system with converged wind farms and further uses chance—constrained programming and particle swarm optimization to calculate power penetration limit.Finally,taking the IEEE 30-bus system as an example shows the calculation method is effective,and different access points that impact on the power penetration limit are analyzed.

关 键 词：汇流风电场 穿透功率极限 机会约束规划 拉丁超立方采样 改进粒子群算法 

分 类 号：TM715[电气工程—电力系统及自动化]