考虑日前调峰分配和流量波动平抑的梯级水电双层优化调度

发布时间：2018-03-14 11:10

本文选题：梯级水电站　切入点：调峰计划　出处：《电网技术》2017年03期 　论文类型：期刊论文

【摘要】：反调节水库平抑下泄水流波动,为上游水电站参与电网深度调峰提供支撑,有利于电网消纳高渗透率间歇性可再生能源,且上游电站增泄流量亦提高反调节水电站出力,实现多赢增效。建立了梯级水电上游调峰电站和下游反调节水库的协调调度模型,包含日前调度层和实时调度层。日前调度中优先安排上游电站调峰出力,应用滑动平均滤波方法平抑调峰非恒定流,以实现反调节水库在满足库水位、下游河道断面流量等约束下平稳泄流,并对滤波参数及日前调峰计划滚动调整以免约束破坏。实时调度侧重于跟踪并及时修正实时运行与日前计划的较大偏差,确保日前计划的顺利执行。最后以某梯级水电站为例,通过Matlab编程仿真表明:所提策略对指导调峰?反调节水库的联合运行具有较强实用性。
[Abstract]:The reverse regulation reservoir can stabilize the flow fluctuation, provide the support for the upstream hydropower station to participate in the deep peak-shaving of the power network, help the power grid to absorb the intermittent renewable energy with high permeability, and increase the discharge of the upstream power station to increase the output of the reverse regulation hydropower station. The coordinated operation model of cascade hydropower upstream peak shaving power station and downstream reverse regulation reservoir is established, which includes pre-day dispatching layer and real-time dispatching layer. The sliding average filtering method is used to stabilize the peak shaving unsteady flow in order to realize the steady discharge of the reverse regulation reservoir under the constraints of the reservoir water level and the downstream channel section discharge. The filtering parameters and the rolling adjustment of the pre-day peak shaving plan are adjusted to avoid the constraint damage. The real-time dispatching focuses on tracking and correcting the large deviation between the real-time operation and the pre-day plan in order to ensure the smooth execution of the pre-day plan. Finally, a cascade hydropower station is taken as an example. The simulation results of Matlab show that the proposed strategy can direct peak shaving. The joint operation of reverse regulation reservoir has strong practicability.
【作者单位】：华北电力大学电气与电子工程学院;
【基金】：国家自然科学基金项目(51277071) 国家电网公司科技项目(高占比风电调峰辅助服务正向激励机制研究)~~
【分类号】：TM73

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