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交流潮流凸松弛约束发输电联合扩展优化规划 被引量:1

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摘要 电力系统交流潮流方程是非线性非凸的,直流潮流是交流潮流的有功近似,输电网扩展规划数学优化方法使用线性的直流潮流。考虑到电源规划对输电网影响,在输电网扩展规划中增加发电机组待选集,构建发输电联合扩展规划。为求解交流潮流约束的发输电联合扩展规划,分析了交流潮流支路功率方程,提出了一种新颖的支路功率方程凸松弛方法,并建立了最优潮流凸松弛模型。为加强松弛的紧性,提出了电压相角近似约束,建立了交流潮流凸松弛约束的发输电联合扩展优化规划模型,该模型是混合整数二阶锥规划。最后使用IEEE RTS 24节点和IEEE 118节点标准算例,调用数学优化引擎GUROBI,测试了以上模型,对比了直流潮流约束和交流潮流凸松弛约束的发输电联合扩展优化规划结果。算例验证说明了该方法的有效性和意义。
出处 《江西电力》 2019年第8期2-7,共6页 Jiangxi Electric Power
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