隔河岩水电站实时运行负荷分配控制研究

针对隔河岩水电站机组自动控制方式下的实时运行负荷分配,从时间和空间两方面建立双目标实时负荷分配模型,并提出水电站不可调控区的判定及区内运行策略。在时间上采用机组优先顺序判定与开停机原则相结合的方法安排机组组合,用动态规划法求解空间目标、同时协调时间目标求得一组优化解,并根据少开停机、少穿越振动区等需要筛选合适的负荷分配方案。经隔河岩水电站模拟运行,节约了用水并减少了机组穿越振动区次数,效果显著。

Real-time Load Distribution Control for the Operation of Geheyan Hydropower Station

This paper investigates real-time load distribution in the mode of unit automatic control for the Geheyan hydropower plant operation. A real-time load distribution model based on double object functions according to spatial and temporal aspects, and the identifiable method and operation strategy of power uncontrolled range were proposed. Temporally, unit commitment scheme of real-time operation is setting by combining unit priority list with unit open-down rules. A set of optimal solutions can be obtained using dynamic programming method to resolve spatial object function and assort with temporal object, from which the load distribution scheme rules were chosen in accordance with real-time control demand. The results of daily simulation operation during April to July, 2006 show that this operation model can save water more than 2%, and reduce frequency number of unit crossing oscillation range by 253. Furthermore, under the condition of giving four different reserve load modes, consumption of power production and frequency number of unit crossing oscillation range are also reduced evidently by the proposed model.