摘要
研究了包含异步风力发电机的配电网无功规划问题。采用基于场景概率的方法,建立了新的成本-效益比值和静态电压稳定指标的综合优化模型,并引入不同场景下的节点电压水平约束,模型和约束对于风电出力的随机性和波动性适应较好。运用改进的自适应权重粒子群算法进行带约束的目标函数求解,在无功补偿电容器的安装容量和位置不确定的情况下,得到无功补偿的最优规划方案。算例部分通过对IEEE33配网节点进行分析,验证了该模型及方法的可行性和有效性。
The optimal reactive power planning for distribution network containing asynchronous wind power generators has been researched. A new comprehensive optimal model that is composed of cost-benefit ratio and static voltage stability index has been built based on adopting scenario analysis, and bus voltage constraints in various scenario are also introduced, which adapts to the characteristic of randomicity and fluctuation of wind power. Under the condition that the installed capacity and position of capacitors are unknown, an optimal planning scheme is attained by using improved PSO algorithm to solve the solution of constrained objective function. Through the case analysis of IEEE33 buses, the method has been proved to be correct and effective.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2012年第5期80-84,132,共6页
Power System Protection and Control
关键词
异步风力发电机
无功规划
粒子群算法
成本-效益
asynchronous wind power generators
reactive power planning
PSO algorithm
cost-benefit
