Key Technologies to Design and Develop Optimized Operation System for Large-Scale Hydropower Stations of China

With the rapid development of hydropower in China during the last two decades, inter-basin and large-scale hydropower systems have appeared. A variety of methods and techniques are needed to deal with these systems of complex scheduling relations. Therefore, it is vital to construct a decision-support system that is scientific, efficient, convenient, and available. A spatio-temporal resolution is presented to solve the optimal operation problem of complex inter-basin hydropower systems by analyzing existing optimal operation technologies and using computer science and artificial intelligence. The resolution includes directed-graph technology to describe the topology of cascade hydropower stations, smart memory and script control technology to set the restrictions automatically, interface programming, and the same model in MVC to handle the linkage between table and chart in multi-reservoir operation. By adopting these technologies, the mid-long term runoff prediction system, long-term, mid-term, and short-term optimal operation system and real-time operation system have been developed and applied successfully in provincial power grids of Fujian, Yunnan, and Guizhou of China.