A Real-Time Load Distribution Method of Hydro-Thermal Power Grid Based on Working Conditions Self-Matching

School of Hydropower and Information Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P R China

^a Corresponding author: 1103448274@qq.com

Abstract

Short-term hydro-thermal power optimal dispatch is a classical problem. Traditional scheduling methods cannot meet the requirements of different dispatch periods separately, and can hardly ensure the safety operation of cascade hydropower stations and reduce wasting water. So the problem how to ensure the safety operation of power grid and the rational utilization of water resources should be settled urgently. In order to solve the problem, a real-time load distribution method of hydro-thermal power grid based on working conditions self-matching is proposed in this paper. In the proposed method, working conditions self-matching is proposed to meet the requirements of different dispatch periods separately for ensuring the efficiency and economy of the power grid. Finally, the proposed method is applied to Sichuan power grid to verify its feasibility and effectiveness. Compared to traditional scheduling methods, the proposed method not only has excellent performance in the utilization of water resources but also can meet all constrains of each scheduling period, which provides a new method to solve the real-time load distribution of hydro-thermal power grid.