Charging control method and system of electric automobile group

A charging control method and electric vehicle technology, applied in the field of electric power, can solve problems such as increasing the cost of purchasing electricity for electric vehicle groups

Active Publication Date: 2016-09-07
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, charging at a time when the price is not optimal will increase the electricity purchase cost of the electric vehicle fleet

Method used

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  • Charging control method and system of electric automobile group
  • Charging control method and system of electric automobile group
  • Charging control method and system of electric automobile group

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040] After analyzing the existing electric vehicle charging optimization methods, it is found that its limitations are as follows:

[0041] 1) Research usually analyzes the economics of orderly charging under the condition that electric vehicles passively accept electricity prices;

[0042] 2) The role of large-scale electric vehicles as an important demand-side resource in maintaining the reliability and stability of the power grid is ignored.

[0043]Therefore, the present invention provides a charging control method for electric vehicle groups. In an open market environment, aiming to minimiz...

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Abstract

The invention relates to a charging control method and system of an electric automobile group. The charging control method of the electric automobile group comprises the steps of building a double-layer random dynamic planning model of the electric automobile group for participating in a market bidding strategy; solving the double-layer random dynamic planning model based on a constraint condition to obtain an optimal solution, and determining a charging strategy of the electric automobile group based on the optimal solution; and controlling the charging of the electric automobile group based on the charging strategy. As the upper-layer optimization problem of the double-layer random dynamic planning model corresponds to cost minimization in a charging period of the electric automobile group, and the lower-layer optimization problem corresponds to scheduling of a demand-side resource to realize minimum power generation cost, the true optimal bidding is realized under a precondition of considering coordination of a electricity purchasing cost of the electric automobile group and a minimum power generation cost; and as the charging strategy is determined based on the optimal bidding to schedule a electric automobile group user to adjust a charging behavior and control the charging of the electric automobile group at a suitable bidding cost, the electricity purchasing cost of the electric automobile group is reduced.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a charging control method and system for electric vehicle groups. Background technique [0002] In the future, my country will have a large number of scattered electric vehicles. If they are not effectively controlled and allowed to be randomly connected to the grid, it will lead to increased peak loads, voltage fluctuations, harmonic pollution, etc., reducing the quality of power supply and causing damage to distribution network equipment. have a serious impact. Therefore, it is necessary to deeply study the orderly management of grid-connected charging of electric vehicles. [0003] To carry out the orderly charging management of electric vehicles, the prerequisite is to use scientific and effective optimization methods, that is, to determine when and where to charge electric vehicles at what level of electricity price, so as to achieve the electric energy required by e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00B60L11/18
CPCB60L53/00H02J7/0013Y02T10/70Y02T10/7072Y02T90/14
Inventor 宋艺航张翔蒙文川冷媛王玲席云华傅蔷陈政曾鸣
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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