WANG Laizeng, FENG Lu, ZHANG Xinjing. Economic study on wind-solar-storage systems technology considering time-of-use electricity prices[J]. Thermal power generation, 2024, 53(10): 66-71.
DOI:
WANG Laizeng, FENG Lu, ZHANG Xinjing. Economic study on wind-solar-storage systems technology considering time-of-use electricity prices[J]. Thermal power generation, 2024, 53(10): 66-71. DOI: 10.19666/j.rlfd.202402040.
Economic study on wind-solar-storage systems technology considering time-of-use electricity prices
Based on the time-of-use electricity price and the cost of wind-PV-energy storage system
technical and economic research of source-grid-load-storage system is studied. Firstly
a microgrid system model integrating renewable energy and energy storage system is proposed
which includes PV
wind power
energy storage system
grid
and load. Then
under the premise of ensuring reliable power supply to the load
an optimization model of the source-grid-load-storage system is established with the goal of optimizing the system economy based on load data
irradiation data
wind speed data
time-of-use electricity price data
and the costs of each unit of the system.Finally
the optimal capacity and economic feasibility of configuring a wind-PV-storage system in a certain region are analyzed in detail through a numerical example. The analysis results indicate that
the energy storage systems store energy at low electricity prices and release energy at high electricity prices
thereby avoiding users from purchasing electricity from the grid at high electricity prices and reducing the cost of purchasing electricity from the grid. The configuration of a wind-PV-energy storage system can effectively reduce the annual cost of purchasing electricity from the grid.