Automatic generation control for Gezhouba Erjiang Hydropower Plant

The authors present a new approach to solving the automatic generation control (AGC) problem stage by stage, using in each stage different methods, namely dynamic programming, known as "priority indices of generating unit start/stop" and the principle of equal incremental of water flow, which was implemented at Gezhouba Erjiang Hydropower Plant. Since June 1989 the AGC program has operated continuously and successfully. Plant operation security was significantly improved. The plant automation level was raised. Considerable economical benefits were obtained. In comparison with other methods, this approach has many important advantages. The proposed approach is suitable for use in various hydropower plants.<>