【摘要】 机组组合问题是电力市场环境下编制短期发电计划所面临的主要问题 ,在满足各种约束条件的情况下 ,如何合理地开、停机组 ,以及负荷如何在运行的发电机组之间经济地分配是一个比较困难的问题 ,特别是由于发电机组出力上升、下降速度的限制 ,使这个问题一直没有很好的解决方法。提出一种组合优化方法解决这一问题 ,即用启发式方法确定机组组合 ,用分段线性规划算法分配功率 ,并满足各种约束条件 ,特别是可以处理发电机组出力上升、下降速度约束 ,经实际系统检验是一种非常有效的算法。更多还原

【Abstract】 Unit commitment is the primary task for short term generation scheduling in electric power market. It is difficult to rationally start up or shut down the units and to economically dispatch the loads among the units with all constraints satisfied.Especially when the changing rate of unit output is limited, there is no a better solution.A novel unit commitment method is proposed for it,which applies the heuristic principle for unit commitment and the sectional linear programming for power dispatch with all constraints satisfied.It can deal with the constraint of unit output ramp rate.Verified by a real system, it is a very efficient algorithm.更多还原