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A selection electric vehicle power grid access control method adapted to V2G

A technology for electric vehicles and power grids, which is applied in circuit devices, AC network circuits, and AC network load balancing to reduce power grid load fluctuations and enhance user satisfaction.

Active Publication Date: 2019-01-11
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of how to select electric vehicles to connect to the power grid to participate in regulation and control, the present invention provides an index system for selecting electric vehicles as distributed energy to participate in power grid regulation and control while considering the reduction of regulation costs on the basis of meeting the needs of electric vehicle owners

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  • A selection electric vehicle power grid access control method adapted to V2G
  • A selection electric vehicle power grid access control method adapted to V2G
  • A selection electric vehicle power grid access control method adapted to V2G

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0042] In this embodiment, 5,000 electric vehicle clusters on the scale of industrial and commercial districts are taken as the research object.

[0043] Assuming that the cluster electric vehicle network access time t on It obeys N(8.5,2) normal distribution, and the off-grid time obeys N(18,2) normal distribution; assuming the EV type is the same, the battery capacity is 48KWh, the charging power limit is 8KW, and the discharging power limit is -8KW. The pile efficiency is 0.95; set the initial SOC to obey N(0.5,1) normal distribution, and the maximum SOC max 1, minimum SOC min is 0.2; select the marginal electricity price P marginal is 0.8 yuan / degree, P car Obey N(0.6,1) normal distribution; take ω 1 = 0.5, ω 2 = 0.5; assuming that 85% of all car owners with an F value greater than 1 are willing to participate in regulation; it is belie...

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Abstract

The invention discloses a selection electric vehicle power grid access control method adapted to V2G, In considering the requirements of electric vehicle owners, electric vehicle aggregators and dispatchers, according to the charge and discharge characteristics of electric vehicles, a two-layer management mode of electric vehicle aggregator and dispatcher based on demand response is established, and four judging indexes for electric vehicles to participate in grid regulation are put forward, including battery life, controllable state of electric vehicles, state of charge of electric vehicles,and economic effect of participating in regulation. On this basis, the invention proposes an electric vehicle aggregation control strategy based on index sorting considering the constraints such as travel demand of users and the like. At that same time, The invention can realize the priority ranking of electric vehicle power grid access, and can better regulate and control the peak cutting and valley filling of electric vehicle power grid access in V2G without affecting the use demand of vehicle owners, meanwhile, the regulation cost factor is considered in the regulation and control of electric vehicles, unnecessary regulation and control cost can be reduced, and the optimization of V2G can be realized.

Description

technical field [0001] The invention belongs to the field of regulation and control of electric vehicles, and in particular relates to a method for regulating and controlling the network access of selected electric vehicles suitable for V2G. Background technique [0002] As an environmentally friendly new type of transportation, electric vehicles have developed rapidly. With the increase in cruising range and the improvement of related infrastructure, the promotion and use of electric buses and electric taxis is gaining momentum. At the same time, the power market is also undergoing continuous reforms. The management of the power industry is no longer limited to the independent management of the supply side in the past, but has gradually become a two-way management model of the demand side and the supply side. Absorbing electric energy can also be used as a temporary energy storage system to reversely release electric energy to the grid during peak hours of electric load, re...

Claims

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Application Information

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IPC IPC(8): H02J3/32
CPCH02J3/32H02J2203/20
Inventor 胡春璇李天然袁超王琦薄鑫
Owner NANJING NORMAL UNIVERSITY
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