摘要
针对传统的电力系统静态安全预防控制计算复杂、求解有效性低的问题,提出一种简单、有效的优化求解方法。首先,以机组出力调整量最小为目标,建立预防控制的优化模型;为减小模型规模及计算量,基于主导事件剔除其中的无效约束;为加速搜索最优解,利用基尔霍夫电流定律缩小可行域范围;最后利用基于加权惩罚因子的改进外点法对模型进行求解。IEEE-39节点标准系统及其修改系统算例结果验证了所提方法的有效性。
This paper proposes a simple and effective optimal solution method to deal with problems such as complex calculation and low efficiency of the solution of static security preventive control in power system. First of all,the optimal model of preventive control is established. The objective function is the minimum adjustment of the output of generating units. In order to reduce the model size and the amount of calculation,the dominant events method is employed to eliminate invalid constraints. In addition,by using the Kirchhoff＇s current law,the feasible region scope is narrowed to accelerate the search of optimal solution. Finally,the improved external point method based on weighted penalty factor is adopted to solve the proposed model. Simulations are made on IEEE-39 bus system and its modified version.The results show that the proposed method is effective for static security preventive control.
出处
《华北电力大学学报（自然科学版）》
CAS
北大核心
2017年第1期24-30,38,共8页
Journal of North China Electric Power University：Natural Science Edition
基金
国家自然科学基金资助项目(51277076)
中央高校基本科研业务费专项资金资助项目(2015XS109)
关键词
静态安全
预防控制
主导事件
基尔霍夫定律
外点法
static security
preventive control
dominant events
the Kirchhoff＇s current law
external point method
