Research On Evaluation Method Of New Energy Absorption Based On Time Series Production Simulation

In recent years,with the continuous consumption of traditional fossil energy,renewable and non-polluting new energy has received extensive attention in the field of power generation.However,due to the uncertainties of new energy output,the predictable uncontrollability of grid load and the cross-regional transmission of power grids,under normal circumstances,new energy sources cannot be completely consumption.The traditional typical daily analysis method calculates the new energy consumption value of the maximum peak and valley difference day,and then calculates the annual value,the calculation is too conservative to improving the new energy consumption value.In order to improve the new energy consumption capacity of the grid,the paper mainly focuses on the time series production simulation method and the transmission of cross-region power grid.The main research contents are as follows:(1)Analyzed the factors of new energy output power fluctuation,peak shaving characteristics,capacity credit,load response capacity and cross-region transmission of the power grid,and obtained the main factors of restricting the new energy consumption capacity of the system is peak regulation ability;(2)The principle of time series production simulation is studied.Taking the whole year as the time span,a consumption model for preferentially consumpting new energy is built.the constraints of power balance,conventional unit output,thermal power unit climbing,abandoning the proportion of new energy and energy delivery are considered.The model is evaluated through economic indicators and environmentally friendly capabilities;(3)The introduction and development of optimization methods in recent years are studied.For the high-dimensional and multi-constraint models,the particle swarm optimization algorithm is used to solve the model,and the constraints are processed by penalty function and feasible processing mechanism.(4)The trans-regional transmission based on time series production simulation is studied,and combined with historical data of actual new energy output,load situation and delivery capacity of a province,simulation is carried out by MATLAB.By comparing the typical daily analysis method with the time-series production simulation method,the accuracy of the time-series production simulation method is verified,and it is proved that cross-zone transmission is more favorable for the consumption of new energy under the consideration of economy.The research work is done in this paper can improve the economic benefits of the power grid,and plays a certain guiding role for new energy consumption.At the same time,it can be extended to energy optimization dispatching for new energy grid connection and improving power generation efficiency,and provide an effective basis for energy development planning.