Optimized dispatching of wind-PV-thermal-storage for auxiliary power system of thermal power plant
With the increasing annual growth of wind and solar power generation,the issue of power consumption has become increasingly prominent.Meanwhile,high-capacity thermal power plants face relatively high auxiliary power loads,resulting in additional operating costs.To address these issues,a joint optimization dispatch model for wind-PV-thermal-storage for auxiliary power system of thermal power plant is developed based on the concept of multi-energy complementarity.Firstly,the compositional structure of the wind-PV-thermal-storage integrated power supply for auxiliary power of thermal power plants is outlined,prioritizing the supply of auxiliary power loads with wind power and photovoltaic power.Secondly,a wind-PV-thermal-storage integrated power supply optimization scheduling model is developed,taking into account the operating costs of thermal power units at different load rates and the costs associated with wind power,photovoltaic power,and energy storage.A hierarchical analysis method is employed to establish a multi-objective function based on the total cost,wind and solar curtailment costs,and environmental costs,while considering corresponding constraint conditions.Finally,various scenarios are set up to compare and analyze the optimization results of the integrated power supply system for auxiliary power.Experimental results demonstrate that the proposed model for the integrated power supply system can effectively reduce unit operating costs and environmental costs,as well as promote the integration of wind and photovoltaic power.
wind and photovoltaic power consumptionjoint supplyauxiliary powermulti-energy complementoptimal dispatch
万方数据
维普
