Economic Evaluation And New Energy Consumption Study Of Wind And Solar Complementary Power Generation System Considering Reliability

China has a vast territory,rich in wind energy and solar energy resources.The effective development and utilization of renewable energy such as wind energy and solar energy is conducive to reducing the pollution of PM2.5 in the power industry,improving the ecological environment,and providing a certain long-term stable and rapid development of China's economy.Protection.However,in the process of generating electricity by using wind energy and solar energy,wind power and photovoltaic power generation have intermittent and volatility characteristics,which will have certain impact on the reliability of wind/photovoltaic power generation systems.In addition,the cost of wind/photovoltaic power generation and the consumption of wind/photovoltaic power generation are also hot issues for wind/photovoltaic power generation.Therefore,in order to safely,economically and effectively utilize and absorb landscape resources,it is of practical significance to study the reliability,economic evaluation and wind/solar energy consumption of wind-solar hybrid power generation systems.This article first discusses the background and significance of this topic,and introduces the current research status at home and abroad of relevant research points involved in this article.Secondly,the reliability evaluation model of the power generation system is briefly introduced,and the definition of the reliability of the power generation system is given.The reliability evaluation model of wind /photoelectric generators and the output model of wind / photoelectric generators are established respectively.During the establishment of the wind / photovoltaic generator set reliability assessment model,it is considered that there will be a large number of derating states in the actual operation of the wind turbine.Therefore,the wind turbine set reliability model adopts a more detailed three-state model.In actual operation,any component failure will have a certain impact on the photovoltaic output,so the reliability model of photovoltaic units uses the traditional two-state model.Based on the above-mentioned reliability evaluation model of power generation systems,the sequential Monte Carlo method and the load model of theRBTS test system are used to evaluate the reliability of independent power generation systems that include wind and solar power,and evaluate wind power generators,photovoltaic power generators,wind and solar power systems,The impact of the randomness of the outage status of the wind turbine / photovoltaic generator set and the penetration rate on the reliability of the independent power generation system.Based on the reliability evaluation of independent power generation systems with complementary wind and light systems,the reliability indexes of power generation systems under different wind/solar installed capacity and different wind/solar configuration ratios are calculated,and the reliability indicators are quantified into reliability cost functions.The integrated cost function is established based on the inherent cost of the system,and the economic evaluation of the wind-solar complementary power generation system is carried out in consideration of environmental benefits and fuel economy.In addition,in order to better absorb wind energy and solar energy,a virtual power plant composed of a wind power generation system,a photovoltaic power generation system,an energy storage device and an electric vehicle charging station is introduced,and the coordinated control of the electric vehicle charging station and the energy storage is realized.The consumption of new energy(wind/solar)is aimed at maximizing the economic benefits of commercial virtual power plants in the market in the past.Under the premise of satisfying various constraints,the linear inertia weight particle swarm optimization algorithm(LDWPSO)and nonlinear inertia weights The particle swarm optimization algorithm(NDWPSO)solves the proposed model.With the development and continuous improvement of wind/light power generation technology,the new energy power generation technology represented by wind/light is bound to become the mainstream power generation technology in the future because of its own advantages.Through the research of this paper,the wind/light power generation system can be used.Planning and commercial virtual power plants to provide a reference for the day-to-day dispatch plan for the consumption of wind/light resources.