Electric vehicle charging management method and system based on urban infrastructure

An electric vehicle and infrastructure technology, applied in the field of electric vehicle charging management and system based on urban infrastructure, can solve the problems of non-operation of equipment, waste of resources, low load utilization rate of substations, etc., to achieve less space and delay investment. , The effect of solving the load pressure of the power grid

Active Publication Date: 2019-03-19
ZHUHAI TITANS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, the current load utilization rate of substations in urban infrastructure (such as traction substations for rail transit and trolleybuses) is low, and there is a large amount of surplus power, and the equipment does not operate in the maximum energy efficiency area. , resulting in a waste of resources

Method used

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  • Electric vehicle charging management method and system based on urban infrastructure
  • Electric vehicle charging management method and system based on urban infrastructure
  • Electric vehicle charging management method and system based on urban infrastructure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] like image 3 As shown, this invention utilizes the abundant power of the existing urban basic smart grid and several substations electrically connected to the urban basic grid, and transforms it on this basis, and appropriately increases some substations according to the station conditions Fast charging devices and energy storage batteries not only solve the load pressure on the power grid brought about by the large-scale development of electric vehicles, but also are used for peak shaving and valley filling, spinning reserve, new energy access, and improve the flexibility, reliability and energy utilization efficiency of power grid power supply , Delay investment in power grid construction.

[0040] Specifically, the system includes an urban basic smart grid, several substations electrically connected to the urban basic grid, a bidirectional power supply electrically connected to the substation, an energy storage battery connected to the bidirectional power supply, and ...

Embodiment 2

[0052] like Figure 4 As shown, this embodiment is roughly the same as Embodiment 1, the difference is that the urban basic smart grid described in this embodiment is the catenary of urban trams, and the traction substation of urban trams receives power from the urban power supply network. The traction substation outputs 800V (650V) alternating current from the 10kV / 20kV power grid through the traction rectifier transformer, and outputs 750V (600V) traction power through the 12-phase or 24-phase rectifier, and takes power from the DC traction power supply 750V (600V) after transformation. The two-way power supply, the energy storage battery, the substation fast charging device and the power dispatching software management system are connected.

Embodiment 3

[0054] like Figure 5 As shown, this embodiment is roughly the same as Embodiment 1. The difference is that the urban basic smart grid described in this embodiment is an urban supercapacitor tram catenary, and the traction power supply of the urban supercapacitor tram takes power from 380V and is rectified by traction. After the transformer is stepped up, it outputs 520 AC power, outputs 600-720V traction power through a 12-phase rectifier, takes power from 600-720V DC traction power, and respectively connects to the bidirectional power supply, the energy storage battery, and the substation fast charging device And power scheduling software management system.

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Abstract

The invention discloses and provides an electric vehicle charging management method based on urban infrastructure, which can realize high efficiency, less space, and low investment, and can solve the bottleneck of large-scale popularization of electric vehicles to supplement electric energy and hinder the development of electric vehicles. and system. The power supply dispatching software management system receives in real time the power values ​​of several substations in the city and the power storage conditions sent by the energy storage batteries in the substations, and sends the real-time power distribution command to the substations or the energy storage batteries; the substation Or the energy storage battery selects the electric vehicle to be charged and the charging and discharging power after receiving the command power value of the power dispatching software management system, and sends an instruction to the substation fast charging device to charge the electric vehicle; the substation quickly The charging device performs charging of the electric vehicle. The invention can be widely used in the charging field of electric vehicles.

Description

technical field [0001] The invention relates to an electric vehicle charging management method and system based on urban infrastructure. Background technique [0002] According to the national new energy vehicle industry development plan, 2010 to 2015 is the key five years for the industrialization and large-scale promotion and application of electric vehicles. Relevant research shows that 2016 is an inflection point for the industrialization of electric vehicles, and the development of electric vehicles has entered a period of rapid growth. A large number of vehicle charging will bring a new round of rapid growth in electricity load. The daily electricity consumption of these electric vehicles will increase the pressure on power generation, transmission, and distribution for the power system with increasing peak and valley differences in electricity load. . [0003] For this reason, the State Council pointed out in Guofa [2012] No. 22 "Development Plan for Energy Saving a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J7/02H01M10/44B60L53/00B60L53/63B60L53/53B60L53/64
CPCY02E60/10Y02T10/70Y02T10/7072Y02T90/12Y02T90/14
Inventor 潘景宜李欣青
Owner ZHUHAI TITANS TECH
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