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大型互联电网交流计划潮流算法 被引量:6

Algorithm of Alternating Current Schedule Power Flow for Bulk Interconnected Grid
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摘要 在中国电网,交流计划潮流计算是校核计划安全性的重要基础。该文提出适用于大型互联电网的交流计划潮流算法。首先确立计算必须遵循的忠实性、分区域、真实性和可选择等4个原则;然后给出基于多断面控制法的实现方案。提出分阶段逐步逼近有功计划的方法,并给出3种不同的不平衡功率分配方式;提出以相似潮流中无功分布为初值并根据有功潮流相似度决定参数变化范围的无功调整方法。所提算法的有效性用IEEE 39节点和中国国家电网的算例进行了验证。所提算法收敛性强,能给出与计划值和电网实际情况高度接近的潮流结果,具有良好的推广应用价值。 In China Power Grid, calculation of alternating current schedule power flow is an important foundation for checking security of schedule. An algorithm of AC schedule power flow applied to bulk interconnected power system was put forward in this paper. The principle of calculating was set firstly, which include four points, namely faithfulness, diversity by area, reality, selectable. Then solution based on interfaces controlling method was given. An approach to active schedule step by step was offered with three means of distributing unbalance power. To regulate reactive power, a method taking advantage of react power arranged in similar power flow was employed, which included using voltage of similar power flow as initial and determining parameter variation referring to closeness between active power of schedule and similar power flow. The algorithm was validated by cases from IEEE 39-node and China State Grid. The algorithm proposed is convergent well, can give power flow close to schedule data and situation appearing in power system, and owns good value for popularization and application.
出处 《中国电机工程学报》 EI CSCD 北大核心 2014年第31期5618-5624,共7页 Proceedings of the CSEE
关键词 交流计划潮流 多断面控制法 大型互联电网 分步逼近 相似潮流 alternating current schedule power flow interfaces controlling method bulk interconnected power system approaching step by step similar power flow
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