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Electric vehicle intelligent charger capable of automatically responding to tou price

A time-of-use electricity price, electric vehicle technology, applied in electric vehicles, battery circuit devices, current collectors, etc., can solve the problem of not being able to maximize the total social welfare, and achieve the effect of automatic and intelligent response and low charging cost.

Inactive Publication Date: 2015-02-25
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the charging load can better respond to the time-of-use electricity price, but currently no charger can use this characteristic to transfer the peak load, reduce the risk of grid operation, and reduce the charging cost of users, which cannot maximize the total social welfare

Method used

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  • Electric vehicle intelligent charger capable of automatically responding to tou price
  • Electric vehicle intelligent charger capable of automatically responding to tou price
  • Electric vehicle intelligent charger capable of automatically responding to tou price

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Embodiment Construction

[0034] The structural composition and optimization algorithm of the electric vehicle intelligent charger of the present invention will be described below in conjunction with the accompanying drawings.

[0035] Such as figure 1 As shown, the electric vehicle intelligent charger of the present invention adopts a controllable rectification circuit and its control circuit to realize the adjustment and control of charging power. Compared with the general charger, the charger of the present invention includes an electricity price setting module, a BMS communication module and an optimization control module. In the process of charging power optimization, the optimization control module needs to call the electricity price information stored in the electricity price setting module and the battery SOC value read by the BMS communication module as input parameters for optimization.

[0036] image 3 It is an optimization algorithm diagram of the charger of the present invention, and t...

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Abstract

The invention provides an electric vehicle intelligent charger capable of automatically responding to tou price. The intelligent charger can automatically adjust charging power in order to realize the minimization of the charging cost of a user and the peak load shifting of grid load. The intelligent charger comprises a price setting module, a BMS communication module, and an optimization control module. The price setting module stores the tou price information in each period, and sets or modifies the price in each period through a human-computer interface, wherein the human-computer interface can further input the charging time and the maximum charging power. The BMS communication module realizes the communication with a battery management system (BMS) and real-time acquires the SOC value of a battery. The optimization control module writes in a heuristic optimization algorithm, takes into account the characteristic that the tou price and the maximum rechargeable power of the power battery reduce with the increment of the battery SOC, and solves the optimization charging power that minimizes the charging cost of the user.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging, in particular to an electric vehicle intelligent charger that automatically responds to time-of-use electricity prices. Background technique [0002] As an important means of demand side management, time-of-use electricity price is a product of the development of the electricity market, which can well solve the problems of tight and unbalanced power supply. In recent years, many provinces and cities in my country have implemented peak-valley time-of-use electricity price measures, which effectively adjusted the peak-valley difference in electricity consumption and eased the power shortage. [0003] Time-of-use electricity prices are implemented on a wide range of objects, ranging from residential electricity consumption to industrial users' production electricity consumption. With the promotion and popularization of electric vehicles, electric vehicle charging load will become ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/04H02J3/32
Inventor 曹一家唐升卫黎灿兵黄小庆
Owner HUNAN UNIV
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