Multi-energy storage power station wide-area coordinated scheduling method of high-permeability new energy power system

Abstract

A wide-area coordinated dispatching method for multiple energy storage power stations of a high-permeability new energy power system comprises the following steps: firstly, acquiring a power system load, new energy and conventional energy power generation power supply power in a target time period of a dispatching operation day, and determining the total power demand of the energy storage power stations in the target time period according to a power balance principle of the power system; superposing the power supply curves of the energy storage power stations in the target time period to obtain a total power supply curve of the energy storage power stations, and taking the condition that the total power supply quantity of the energy storage power stations is equal to the total power demand quantity as a supply-demand equalization point to obtain a charge-discharge equalization price and an equalization quantity; and then determining a power supply plan of the energy storage power stations according to the charge and discharge balance price and the power supply curve of each energy storage power station, finally performing safety check on the supply plan, if the check is passed, taking the supply plan as a final scheduling scheme, otherwise, adjusting the energy storage power stations and the distributed power supply quantity until the check is passed. By means of the design, reasonable and effective dispatching of the wide-area multiple energy storage power stations in the high-permeability new energy power system is achieved.

Description

technical field [0001] The invention belongs to the technical field of power grid optimization and scheduling, and in particular relates to a wide-area coordinated scheduling method for multi-energy storage power stations in a high-penetration new energy power system. Background technique [0002] In order to achieve the goal of low-carbon power system, it is necessary to build a clean, low-carbon, safe and efficient energy system, implement renewable energy alternative actions, and build a new power system with new energy as the main body. The characteristics and development trends of the power system are as follows: First, new energy sources such as wind power and solar power are connected to the power grid on a large scale. The proportion of new energy power sources in the power system continues to increase, and the power system has gradually evolved into a high-penetration new energy power system. , the randomness and volatility of wind power and solar power generation m...

AI Technical Summary

Problems solved by technology

However, there are multiple energy storage power stations in the high-penetration new energy power system, which are widely distributed geographically and belong to different market entities. Charge and discharge power curves, etc.) and economic characteristics (such as operating costs, etc.) are also different, and it is difficult to fully obtain the above information. At the same time, multiple energy storage power stations have coupling effects on the power balance of the power system

Therefore, the method based on the above-mentioned literature cannot effectively solve the scheduling problem of multi-energy storage power stations in high-penetration new energy power systems.

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