| In order to effectively alleviate the phenomenon of wind curtailment and enhance the economic vitality of the western region,the state has implemented a series of industrial transfer policies to encourage energy-intensive enterprises to build industrial parks near large-scale wind power bases in Gansu and Xinjiang.It is hoped that energy-intensive enterprises will be used to solve these regional causes Wind curtailment problems caused by lack of spare capacity,limited peak shaving capacity,and insufficient transmission capacity.Energy-intensive enterprises account for a high proportion of electricity costs in total production costs and are sensitive to electricity prices;at the same time,enterprises have a large proportion of internal adjustable loads,and most of them have self-supplied power plants with flexible adjustment capabilities.Therefore,it is necessary to make full use of the flexible adjustment ability and response enthusiasm of energy-intensive enterprises to actively participate in power system dispatch to increase wind power consumption.Analyze and study the principles of energy-intensive enterprises participating in wind power consumption,and classify them according to their load characteristics and the types of self-supplied power plants.Based on the specific analysis of various types of energy-intensive enterprises participating in regulation and absorbing the potential of wind power,two main ways for them to participate in wind power absorption are given,which will serve as the basis for subsequent research on the strategies of different types of energy-intensive enterprises participating in wind power absorption.Aiming at how energy-intensive enterprises including cogeneration power plants participate in wind power consumption,a short-time-scale power generation rights trading model is designed,that is,based on medium and long-term power transactions,the transaction volume and transaction unit price of power generation rights are based on the hourly time scale.Settlement takes days as the time scale;at the same time,electric heating devices are used to participate in combined heating,decoupling the thermoelectric coupling constraints of units,and reducing unit electric output;aiming at the lowest operating cost of self-supplied power plants,build a clean alternative to cogeneration of wind power plants and self-supplied power plants Scheduling model.The simulation results show that this method effectively improves the level of wind power consumption,reduces the energy cost of energy-intensive enterprises,reduces coal consumption,and realizes clean replacement of electric energy.Aiming at how energy-intensive enterprises with adjustable load and conventional thermal power self-supplied power plants participate in wind power consumption,a joint dispatch mode of energy-intensive enterprises and wind power plants is designed,that is,the adjustable load and conventional thermal power self-supplied power plants are used as demand response resources at the same time In order to analyze the difference in the effect of different types of enterprises participating in demand response and absorbing wind power,an internal consideration of contribution is formulated in order to analyze the difference in the effect of different types of enterprises participating in demand response and absorbing wind power,and taking into account the differences in their response characteristics.Benefit sharing mechanism;with the goal of combining the lowest overall operating cost to build a dispatch model with energy-intensive enterprises participating in demand response;simulation results show that this method effectively improves the level of wind power consumption,reduces system operating costs,and reduces enterprise electricity costs.Good social and economic benefits.Fully tapping the adjustable load in energy-intensive enterprises and the regulation potential of their own power plants can effectively promote wind power consumption,reduce system operating costs,reduce coal consumption,and promote the implementation of energy-saving and emission-reduction policies. |
