Research on Demand Response Strategy of User Side Photovoltaic and Energy Storage System Based on Real Time Price

Abstract

In order to analyze the economics of user-side photovoltaic and energy storage system operation and promote the widespread promotion of photovoltaic energy storage system, this paper first analyzes the operation mode of user demanding response after PV and energy storage system configuration in the background of real-time electricity price in the spot market. Secondly, aiming at maximizing the operating revenue of the user's optical storage system, considering reducing electricity charges, online electricity sales, photovoltaic power generation subsidies, user-interruptible load incentive subsidies, energy storage charge subsidies, and establishing the objective function of the user electricity price demand response model, consider the power balance and battery operating conditions are constrained to establish the objective function of the model, and a complete optical storage user price demand response model is formed. Finally, based on the actual business user load data and other data research, call matlab's fmincon function to solve the model and analyze the user's daily income and investment recovery period after the different subsidy mechanism, the energy recovery cost is reduced.