【摘要】 风电出力的非平稳性是目前制约风电并网运行的关键因素,将水电和风电联合运行调度是一种新的思路。本文以黄河上游5座百万千瓦级的梯级水电站与甘肃河西千万千瓦级的风电站为研究对象,综合考虑各种复杂约束条件,以弃风电量最小为目标,建立了水电-风电互补运行优化调度数学模型,采用改进的量子粒子群算法对该模型进行求解。实例研究表明:经过风水互补后,风电出力基本平稳,最大的波动偏差为1.65%,最小的仅为0.04%,满足了电网稳定性的要求。因此,将水电风电联合运行优化调度合理、可靠,以期为大规模风电并网运行提供了一条有效途径。更多还原

【Abstract】 It is very difficult for the strong instability of wind power to be absorbed by the grid on large scale,and the joint operation of wind power and hydropower provides a new idea.In this paper,the wind power-hydropower system is discussed involving five million-kilowatts hydropower stations located in the upstream of the Yellow River and a ten million-kilowatts hydropower stations located in Hexi of Gansu province.A model aiming at minimizing the loss of wind power is established in considering all kinds of complicated constraints,which is solved by the modified QPSO method.Case study reveals that the output of wind power compensated by hydropower becomes stable,and that the maximum and minimum volatility deviations are 1.65% and0.04%,which satisfies the requirement for system stability and improves the amount of wind onto the grid,and decreases the loss of the wind power.Therefore,the joint operation of the wind power and hydropower is feasible and rational,providing an effective way to make the wind power absorbed by the grid.更多还原