摘要 高压直流输电近年来在大容量电能传输中得到广泛的运用,其在经济性和运行特性方面有着突出的优点,利用交直流混联系统在各区域电网之间互联成为一种重要的输电方式。交直流系统的最优潮流（optimal power flow,OPF）特别是无功优化是系统的一个重要的研究方向,解决无功优化问题中的离散变量的优化问题一直是计算中的一个难点。本文以交直流系统的节点功率平衡方程和直流网络方程为基础,结合无功优化的理论,设计出一种解决离散变量问题的内点算法,以系统网损最小为目标函数进行无功优化计算,通过两个算例,验证了该算法解决交直流系统无功优化中离散变量优化的可行性。
Abstract：HVDC has been widely used in large-capacity power transmission recent years, which has outstanding advantages in terms of economics and operating characteristics, the use of AC-DC hybrid system among the regional power grid interconnection become an important way of transmission. OPF of AC-DC system especially OPRF problem is an important research direction, solving OPRF problem with discrete variables has been a difficulty. This paper combines principle of AC-DC system with reactive power optimization theory, devised a solution to the problem with discrete variable based on interior point algorithms. This paper uses minimum of network loss as objective function of OPRF problem and verifies the algorithm’s feasibility to solve the OPRF problem of AC-DC system with discrete variables through two examples.
张昕, 章慧芸. 交直流系统离散无功优化精确化方法的研究[J]. 电气技术, 2017, 18(3): 73-77.
Zhang Xin, Zhang Huiyun. Research of Accurate Method for Solving Discrete OPRF Problem of AC-DC Transmission System. Electrical Engineering, 2017, 18(3): 73-77.
2017, Vol. 18 
