标题:
长江上游梯级水库联合发电调度研究Joint Operation of Cascade Reservoirs’ Hydropower Generation in the Upper Yantze River Reach
作者:
周建中, 穆青青, 冯宇, 张勇传
关键字:
金沙江下游梯级, 三峡梯级, 粒子群算法, 优化运行, 效益分析Jinsha River Downstream Cascade; Three Gorges Cascade; Particle Swarm Optimization;
Optimal Dispatching; Benefit Analysis
期刊名称:
《Journal of Water Resources Research》, Vol.2 No.1, 2013-02-27
摘要:
随着金沙江下游梯级水库的相继建成和投运，将逐渐改变长江流域梯级水库综合调度格局，原有的单个电站常规发电调度方案已难以达到全局最优。由此，针对长江上游水库群联合发电调度问题，提出以发电量最大为目标且兼顾保证出力要求的长江上游六库联合发电优化调度模型，并采用改进粒子群优化算法进行求解。结果表明：在均满足保证出力的情况下，六库联合优化调度方案比常规调度方案发电量大，不仅能够获得较好的发电效益，有效提高水能资源利用率，而且联合调度后，已投入生产的三峡梯级可增发电量25.41亿千瓦时，新增效益3.05%，由此可见，六库电站联合运行对三峡梯级的电量补偿效益巨大。
Along with the JinshaRiverdownstream cascade built and put into operation, the comprehensive control pattern of the Yangtze River valley cascade reservoirs will be changed, and the original single power station has been difficult to conventional power generation scheduling scheme optimum. So Joint Operation of Hydropower Generation for multi-reservoir of Upper Yangtze River inChinawas studied in this paper. Choosing maximum hydropower generation as objective function under the considering firm power, a optimal model were established for joint operation of Upper Yangtze River, the model was solved by improved particle swarm optimization. The result shows that compared with the conventional dispatching the joint optimal dispatching of six reservoirs could Sends more electricity, creating better economic benefits, satisfying the demand of power system load better, and improving Water resources utilization effectively; and compared with the individual operation of three Gorges cascade, the power generation of three Gorges cascade increases 25.41 kWh, growing rate run at 3.05%. The compensation benefit of the Three Gorges cascade is significant.