Energy storage configuration and cost analysis method for supporting new energy consumption of power system

Abstract

The invention discloses an energy storage configuration and cost analysis method for supporting new energy consumption of a power system. The power system comprises energy storage, wind power, photovoltaic power, thermal power, hydropower and a load, the wind power and the photovoltaic power form new energy, and the thermal power and the hydropower form a conventional unit. The method comprises the following steps:firstly, establishing a mathematical model of new energy output, and analyzing installed capacity of wind power and photovoltaic power and output characteristics under multiple time scales; according to the historical load data, predicting and considering the load demand quantity of the power system under different time scales; according to the electric power and electric quantity balance relation, calculating unbalanced power between the load and the new energy, and establishing a refined mathematical model of energy storage; and finally, based on the cost data of wind power generation, photovoltaic power generation, thermal power generation and hydroelectric power generation, analyzing the influence of different energy storage configurations and energy storage costs on the total cost of the power system by taking the comprehensive operation cost of the power system as a target. The invention solves the problem of existing new energy consumption.

Description

technical field [0001] The invention relates to the technical field of new energy high-permeability electric power systems, in particular to an energy storage configuration and cost analysis method for supporting new energy consumption in electric power systems. Background technique [0002] Renewable energy has become an inevitable trend of energy development and has been valued by countries all over the world. As of 2019, the installed capacity of renewable energy accounted for 21.6% in the United States, 67.9% in Germany, and 39.5% in China. The development of renewable energy can promote the improvement of photovoltaic industry, energy storage, wind power, machinery, environment and other industries and their equipment technology, and drive the development of national economy and national energy. However, due to the volatility of renewable energy power generation and insufficient peak-shaving capacity of the system, it will inevitably lead to a large number of abandonme...

AI Technical Summary

Problems solved by technology

At present, the research on energy storage demand is mostly focused on the charging and discharging control strategy of energy storage and the configuration of energy storage capacity in specific application scenarios, and there is a lack of research on the overall energy storage configuration planning method and economic impact of the system.

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