用于电力系统随机生产模拟的剩余持续负荷曲线

Residual load duration curve for power systems stochastic production simulation

分析了等效持续负荷曲线的特性及其用于随机生产模拟时存在的不足,在此基础上提出了剩余持续负荷曲线的概念,并与等效电量函数法相结合,用于电力系统的随机生产模拟。对IEEE-RTS79扩大系统的仿真结果表明,采用等效持续负荷曲线或剩余持续负荷曲线进行随机生产模拟拥有相同的计算精度,但采用剩余持续负荷曲线可以节约超过60%的计算时间,能够较好地满足实际大规模电力系统的应用要求。

The characteristics of equivalent load duration curve and its shortcomings in stochastic production simulation were analyzed. Then the concept of residual load duration curve was proposed, which was combined with equivalent en- ergy function method for stochastic production simulation. Simulation on the expanded IEEE - RTS79 system showed that stochastic production simulations using residual load duration curve could save more than 60% of the computing time compared with using equivalent load duration curve with the same precision, and could better meet the require- ments of the practical applications on large scale power systems.