互联系统的有效容量分布累积量法

The Cumulant Method Using Available Capacity Distribution for Two-area Power System

本文把有效容量分布累积量法［２，３］推广到互联系统的随机生产模拟中，严格地处理了发电单元支援容量的随机性质和联络线的容量约束，精确地反映了互联系统之间的电能交换过程。由于等值有效容量的运用，该方法不仅为互联系统的随机生产模拟开辟了新的途径，而且易于从两系统随机生产模拟推广至三系统，甚至更多系统。数字算例表明，该算法具有很高的计算精度和计算效率。

This paper extends the cumulating method using avaiable capacity distribution to solve the two-area production cost problem.The random characters of senerating available capacity and the transmission capacity limit have been considered accurately. By using equivalent available capacity, the method gives a new approach of the stochastic production simulation for two-area power system and it is easy to be extended to three-or multi-area power system. A corresponding algorithm and computer software have been developed and the case study shows that the method is efficient and accurate.