摘要
本文介绍了电力系统随机生产模拟的另一种方法——修改负荷法。该法直接用发电机组的容量模型修改给定的负荷曲线,它可以很方便地对水电机组及多状态机组进行随机生产模拟,它还可以考虑水电站来水预测的不确定性,以及对互联系统进行随机生产模拟。在此基础上,作者还提出了近似修改负荷法,使计算速度大大提高。本文对等效电量函数法(EEF法)、修改负荷法,经典法和累计量法进行了算例比较,结果表明用近似修改负荷法能在保证一定精度的前提下使计算速度大大提高。为使随机生产模拟在实际电力系统中的应用提供了有力的依据及参考价值。
A new approach to probabilistic power-production-cost modelling for power systems is presented. The essence of the approach is to modify the given load urve directly by capacity models of generating units. This approach is quite applicable to the modelling of hydro-turbo-generators and multi-function generating units. It can also take the uncertainty of incoming water stream to hydro-power station into consideration and carry out the probailistic modelling of interconnected systems. The approximate load-curve modification method presented in this paper makes the calculation much easier and faster than traditional methods.
