Research on Optimal Dispatching of Wind-Photovoltaic-Hydropower-Thermal Power-Pumped Storage Combined Power Generation System with Deep Peak Regulation
The interconnection of multiple energy sources has gradually become the direction of future power system development,and the optimization and scheduling of multi energy interconnection systems is an important means to cope with the large-scale consumption of new energy connected to the grid.We have established a cost model for the wind solar water fire pumping and storage interconnected system that takes into account the cost of deep peak shaving for thermal power units,and a day ahead optimization scheduling model for the wind solar water fire pumping and storage interconnected system that takes into account the initiative of peak shaving.A hierarchical optimization scheduling model solving method is proposed for the complex structure of multi energy coupled systems.The upper level model aims to minimize the fluctuation of net load and obtain the equivalent load curve;The lower level model,based on the scheduling results of the upper level model,takes the economic optimization of peak shaving operation and the minimum amount of new energy waste as the objective function,taking into account the initiative of peak shaving,to solve the economic scheduling problem of a new energy system that considers the deep peak shaving coal consumption characteristics of thermal power units.The simulation examples show that the constructed model achieves complementary operation of multi energy interconnected systems,improves the deep peak shaving ability of thermal power units,reduces the abandonment rate of new energy and system operating costs.
multi-energy systempumped storage power stationdeep peak shavingoptimal dispatchingpeak regulation initiative
NETL
NSTL
万方数据
