溪洛渡水电站大规模机组群厂内经济运行实用化方法

水电站厂内经济运行是提高水电站运行效益的重要途径。当水电站机组类型和台数较多时,传统计算方法或智能算法会面临计算耗时长或结果稳定性等方面的问题。为改善这一问题,以溪洛渡水电站大规模复杂机组群为对象,研究了其厂内经济运行的实用化求解方法,提出了需要增加机组台数、需减少机组台数时的机组类型和台数的计算方法。实例验算表明实用化方法计算耗时少、计算结果很接近最优值,满足在线运行需求,可为类似电站厂内经济运行提供参考。

Practical method of in-plant economical operation of Xi-Luo-Du hydropower plant with large number of generator sets

In-plant economical operation is an important measure to improve the benefit of a hydropower plant. In cases where a large number of generator sets of various types are in operation, traditional methods or intelligent algorithms come up against problems, such as too much time-consuming and uncertainty in solutions. Through a case study of the large number of complex generator sets at the Xi-Luo-du hydropower plant, a practical method has been developed to achieve in-plant economical operation of generator sets, including operation schemes of how to add new generator sets and shut down some of the existing sets. Results show that our method can give solutions very close to the optimal at less computational cost. The method is fast enough to meet on-line operation needs and it would be useful to the design and operation of similar hydropower plants.