Peaking Shaving Energy Model for Combined Optimization of Pumped Storage Power Plant and Coal-Fired Power Unit Considering the Farmland Drainage and Irrigation

Irrigation station is the large energy consumed unit of water conservancy drainage and irrigation in north China. A region in that part of China dominated by thermal power is difficult to meet the requirements of the increasing differences between peak and valley as well as economy of peak shaving, a concern of which is expected to be solved at present. Through describing the status quo of farmland drainage and irrigation and starting from the optimized perspective, the thesis presents a peak shaving energy optimized model for combining pumped storage power and coal-fired power unit considering farmland drainage and irrigation. GAMS software is used to obtain solution of the model as well. Example shows that farmland drainage and irrigation cost reduces 412,300 yuan per hour, SO₂, NOx and CO₂ emissions decrease 7.49 tons, 30.14 tons, and 51,935.45 tons respectively, and total cost of peak shaving lowers 10.8577 million yuan in a daily peak period. The model serves as a way to improve economy and environmental benefits of regional power grid peak shaving, and provides a reference for farmland drainage and irrigation and regional energy saving schedule.