摘要
电力系统基本潮流无可行解时,通常只能根据经验以人工对可调的负荷出力进行反复调试才能获得一个较接近初始状态的新可行解。为了在恢复潮流可行解的同时,找到原运行方式中导致无解的症结,以节点注入偏差量绝对值最小为目标,提出了一种新的潮流恢复实用模型,并采用原—对偶内点法求解。对IEEE标准系统及实际超大电网系统的仿真表明该模型有效,优化结果可以较好地辨识出导致原运行方式无潮流可行解的节点出力和负荷,计算效率已达到实际应用水平。
Manually altering the output flow and load by experienced operators is the most widely used way when the power system power flow calculation has no feasible solution.To find out the critical causes while restoring the power flow solvability,this paper proposes a practical power flow restoration optimization model,with the absolute value of bus inj ection deviation as the optimizing obj ective and the problem solved by the primal-dual interior point method.The proposed method is able to find out the improper bus inj ections and optimize the system to obtain solvable power flow calculations.Simulations on Institute of Electrical and Electronics Engineers (IEEE) standard systems and practical bulk power systems have proved the effectiveness and correctness of the proposed method.The calculation scale capability and calculating efficiency is qualified for practical applications. This work is supported by National High Technology Research and Development Program of China (863 Program) (No.2011AA05Al18).
出处
《电力系统自动化》
EI
CSCD
北大核心
2014年第23期60-64,76,共6页
Automation of Electric Power Systems
基金
国家高技术研究发展计划(863计划)资助项目(2011AA05Al18)~~
关键词
可行潮流恢复
原—对偶内点法
潮流优化
可行解
电力系统
power flow solvability restoration
primal-dual interior point method
power flow optimization
feasible solution
power system