CAJ | 학술논문

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。
전력계통기본조류무가행해시，통상지능근거경험이인공대가조적부하출력진행반복조시재능획득일개교접근초시상태적신가행해。위료재회복조류가행해적동시，조도원운행방식중도치무해적증결，이절점주입편차량절대치최소위목표，제출료일충신적조류회복실용모형，병채용원—대우내점법구해。대IEEE표준계통급실제초대전망계통적방진표명해모형유효，우화결과가이교호지변식출도치원운행방식무조류가행해적절점출력화부하，계산효솔이체도실제응용수평。
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).