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Indexed by:会议论文

Date of Publication:2017-05-21

Included Journals:EI、CPCI-S

Page Number:476-489

Key Words:Hydropower absorption; Optimal operation; Coordination strategy; Provincial power grid with rich hydropower

Abstract:Southwest China has experienced a rapid development of hydropower in recent years. In contrast, the power demand growth is very slow in the region. The increasing imbalance between power supply and demand have led to great challenges on the hydropower absorption and operation of provincial power grids with rich hydropower. In this paper, a practical method for long-term scheduling of provincial power grids with rich hydropower is proposed. An optimization model with maximizing the absorption of hydropower is formulated. A coordination strategy, which is capable of minimizing the thermal power generation according to the energy-saving scheduling principle, is employed to increase the absorption of hydropower. The proposed method was implemented on the generation scheduling of yunnan power grid (YNPG), with more than 60GW hydropower capacity and 160 large and middle-sized hydropower plants. The case study presents different simulation results by considering scenarios of inflow and demand. It is demonstrated that our method can obviously increase hydropower absorption. It is effective and practical.