Method and system for centralized control of massive electric vehicles facing dimension reduction equivalence

Abstract

A massive electric vehicle centralized control method oriented to dimension reduction equivalence comprises the following steps: constructing an electric vehicle battery model, constructing an electric vehicle centralized model, constructing travel urgency degree parameters of each electric vehicle, converting target control power of all the electric vehicles currently connected to a power grid into control signals for the electric vehicles, and then outputting the control signals to the electric vehicles; and whether the charging and discharging state of the electric vehicle should be switched is judged, and charging and discharging adjustment is conducted on the currently involved electric vehicle according to the judged charging and discharging state. According to the method, while the dimensions of massive electric vehicle models are reduced, control signals are simplified, and the travel requirements of users are guaranteed. The network access state and the SOC state of the electric vehicle are described by adopting a limited number of discrete states, so that the complexity of the cluster center and the control of a large number of electric vehicles is effectively simplified; by using the self-adaptive control method considering the travel urgency degree of the user, the terminal control meets the personalized travel requirements of the user.

Description

Technical field [0001] The present invention belongs to the field of power system operation control technology, specifically relates to a centralized control method and system for a massive electric vehicle oriented to dimensionality reduction and equivalence. Background [0002] With the rapid development of wind and solar renewable new energy, the power fluctuation problem caused by the random uncertainty of renewable new energy has become more prominent, and an effective way is to configure energy storage for renewable new energy, but the current problem of high energy storage costs directly affects the economy of renewable new energy access to the power grid. In recent years, electric vehicles, with their huge advantages in energy-saving economy and low-carbon environmental protection, have become a new situation in the development of automobiles and have developed rapidly in the world. After the end of electric vehicle travel, it is necessary to access the power grid to obt...

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Problems solved by technology

[0002] With the rapid development of wind and solar renewable new energy, the power fluctuation problem caused by the random uncertainty of renewable new energy has become more and more prominent. One effective way is to allocate energy storage for renewable new energy, but the current cost of energy storage remains high. The problem directly affects the economics of connecting renewable new energy to the grid

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