考虑柔性交流输电系统设备控制的校正型安全约束最优潮流

发布时间：2018-01-05 06:26

本文关键词：考虑柔性交流输电系统设备控制的校正型安全约束最优潮流　出处：《电力系统自动化》2017年12期 　论文类型：期刊论文

【摘要】：为提升安全约束最优潮流调度的经济性与安全性,提出一种基于直流潮流的考虑柔性交流输电系统(FACTS)设备控制的校正型安全约束最优潮流模型。在线路故障发生后,通过FACTS设备校正措施,将线路潮流控制在其容许范围内。由于所提模型为大规模的非凸、非线性优化问题,难以直接求解,因此先采用大M法,将原非线性优化模型转换为混合整数线性规化模型,并采用Benders分解算法将转换后的模型分解为基态最优潮流主问题与N-1故障校验子问题。通过固定整数变量的方法,将非凸的混合整数优化子问题转换为线性规划子问题,从而能向主问题返回对应的Benders割。6节点系统与IEEE RTS-79节点系统算例验证了所提模型与算法的有效性。结果表明,考虑FACTS设备校正控制的安全约束最优潮流能有效提升调度运行的经济性。
[Abstract]:In order to improve the economy and security of the optimal power flow scheduling with security constraints. This paper presents a calibrated safety constrained optimal power flow model based on DC power flow considering the control of flexible AC transmission system facts equipment. After line failure occurs, FACTS equipment is used to correct the power flow. Because the proposed model is a large-scale non-convex, nonlinear optimization problem, it is difficult to solve it directly, so the large M method is adopted first. The original nonlinear optimization model is transformed into a mixed integer linear planning model. Benders decomposition algorithm is used to decompose the transformed model into the ground state optimal power flow master problem and the N-1 fault check subproblem. The nonconvex mixed integer optimization subproblem is transformed into a linear programming subproblem. The results show that the proposed model and algorithm are valid for the main problem, and the corresponding Benders cut 6 node system and IEEE RTS-79 node system can be returned to the main problem to verify the effectiveness of the proposed model and algorithm. Considering the security constraints of FACTS equipment correction control, the optimal power flow can effectively improve the economy of dispatching operation.
【作者单位】：强电磁工程与新技术国家重点实验室(华中科技大学);浙江大学电气工程学院;
【基金】：中国博士后科学基金资助项目(2016M590693)~~
【分类号】：TM721.2
【正文快照】： 上网日期:2017-05-08。0引言安全约束最优潮流(security-constrainedoptimal power flow,SCOPF)是电力系统安全可靠运行的重要调度方法[1]。该方法又分为:预防性安全约束最优潮流(preventive security-constrainedoptimal power flow,PSCOPF)与计及校正控制的安全约束最优潮流

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