Virtual Power Plant System Based on Demand Side Management

Abstract

The present invention relates to a virtual power plant system, in particular to a virtual power plant system based on demand side management. Plan, play a similar function to energy storage, so as to realize the utilization of multi-category electric energy; through demand side management, on the basis of forecasting power load, actively integrate controllable load and distributed power as a whole, through Unified scheduling management, arrange the output or power consumption plan of each part in a coordinated manner to meet the electricity demand of users, so as to realize the comprehensive and rational utilization of various resources; the virtual power plant system actively performs unified scheduling with public power grid equipment, and public The power supply capacity of the grid equipment is coordinated to achieve reliable power supply to the distribution network, peak shaving and valley filling, and the effect of reducing peak-valley differences, reducing redundant investment in equipment, and making the utilization of grid facilities and investment more reasonable.

Description

technical field [0001] The invention relates to a virtual power plant, in particular to a virtual power plant system based on demand side management. Background technique [0002] The traditional distribution network power supply mode is mainly connected to the power distribution room or power distribution room of users such as residential areas, commercial areas, industrial parks or complexes through lines and grid-connected switches from the substations, ring main units or switching stations of the public power grid. Transformer for power supply. With the development of distributed power sources represented by distributed photovoltaics, distributed wind power, and distributed energy stations, and the nearby access to the user side, the traditional distribution network power supply mode has been expanded, and the reliability and reliability of power supply to users have been improved. resource utilization. [0003] In order to coordinate and manage distributed power sourc...

AI Technical Summary

Problems solved by technology

However, the existing virtual power plants are limited to the coordinated control of distributed power sources. For the controllable loads represented by electric vehicles that gradually increase in power consumption, they are only proposed conceptually without specific control measures. It can only unilaterally and passively respond to the power demand of controllable loads, and cannot actively use its controllability characteristics

In addition, the existing virtual power plants do not realize the overall utilization of the public grid and distributed power sources, resulting in excessive reserve margins for the power supply capacity of the public grid, low utilization of power transmission and transformation equipment, and waste of investment.

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