基于序优化理论的输电网规划

Transmission Expansion Planning Based on Ordinal Optimization Theory

序优化理论从工程实际出发,能够以足够高的概率求解到足够好的解,在求解输电网规划问题时,可大大减少计算量,又能满足工程需要.文中以输电网扩建工程投资费用、扩建后系统发电费用,以及新电网在各种预想事故下的失负荷损失费用三者之和作为目标函数,综合考虑了输电网所有者、发电厂商以及用户等方面的影响,并通过引入序优化理论来求解足够好的输电网规划方案.基于Garver系统的算例表明,采用序优化理论求解输电网规划是有效的,并具有一定工程实用价值.

The ordinal optimization theory based on practical engineering provides an efficient tool to obtain good enough solutions to transmission expansion planning problem with a high probability, and helps to remarkably lighten the computation load and well satisfy the engineering requirements. In this paper, the ordinal optimization theory is employed to seek good enough planning schemes for transmission expansion, with the sum of the expansion investment cost to transmission owners, the generation cost to generators and the possible outage cost to customers as the objective function. Test results in a Garver system show that the transmission expansion planning based on the ordinal optimization theory is effective and feasible in practice.