Photovoltaic parallel grid charging system for electric car

A charging system and electric vehicle technology, applied in photovoltaic power generation, electric vehicles, secondary battery charging/discharging, etc., can solve problems such as instability, unresolved charging organization and management problems, and no system solutions, etc., to achieve a wide range of uses Effect

Inactive Publication Date: 2010-02-03
ENN SCI & TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Invention patent 200610062677.3 discloses a charging system for electric vehicles. However, this system uses commercial power charging. Invention patent 200710118518.5 discloses a charging operation method for electric vehicles. The charging station involved can use commercial power or solar energy. Charging for cars, but this invention does not solve the problem of charging organization and management under the operation of multiple vehicles and multiple power supply systems, especially there is no system solution for the characteristics of solar ener

Method used

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  • Photovoltaic parallel grid charging system for electric car
  • Photovoltaic parallel grid charging system for electric car
  • Photovoltaic parallel grid charging system for electric car

Examples

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Embodiment 1

[0029] like figure 1 As shown in the figure, the charging station of the present invention is a charging system for charging electric vehicles by using photovoltaic modules to generate electricity on the grid, including a photovoltaic module array, a grid-connected inverter, a component and an environmental monitoring system, a transformer, a power distribution cabinet and a meter. , charge control system, charge monitoring system and charger. The electricity generated by the photovoltaic module array is connected to the power distribution cabinet in parallel with the electricity of the grid through the grid-connected inverter for use by the load. The charge control system and charger can selectively charge the battery pack.

[0030] The difference between this solution and the existing mains and solar charging stations is that the charging system can have a variety of charging modes to choose from according to the actual situation. Sexual charging.

[0031] Its work contro...

Embodiment 2

[0033] like image 3 As shown in the figure, the difference from the first embodiment is that in the charging system in which the battery pack can be disassembled and required to run all day, the control process is as follows Figure 4 As shown in the figure, the electricity generated by the photovoltaic modules passes through the grid-connected inverter and is connected in parallel with the mains to charge the electric vehicle. The electric vehicle does not need to be graded and can be connected and charged at any time. The charger for this system automatically disconnects when the battery pack is fully charged.

Embodiment 3

[0035] like image 3 As shown, the difference from the second embodiment is that the power distribution cabinet can automatically allocate the power of the photovoltaic components and the commercial power according to the information obtained by the components and the environment monitoring system. as control flow Figure 5 As shown, during the day, the mains is isolated from the system, and all electric vehicles connected to the system are charged from the electricity generated by the photovoltaic modules, and at night, the mains is connected to the system and the batteries of all electric vehicles are charged. Group is full.

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Abstract

The invention discloses a photovoltaic parallel grid charging system for an electric car, which comprises a photovoltaic component array, a parallel grid inverter, a component and environment monitoring system, a transformer, a power distribution cabinet, a meter, a charging control system, a charging monitoring system and a charger, and can be applied to golf battery cars, electric buses and other electric car charging stations. The charging control system can control an access number and an access sequence of the charger to realize the charging management of the electric car. The charging monitoring system monitors the charging information of a battery over and again and displays the charging states of all accessed electric car battery packs. The charger completes detailed charging control and overcharge protection of the electric car battery packs. An electric car photovoltaic parallel grid charging station can realize the charging organization and management of a plurality of electric cars of different types produced by different producers, and can realize quick charging, pure solar energy charging and other charging forms for the electric cars.

Description

technical field [0001] The invention relates to a charging system for electric vehicles, in particular to a charging system for charging electric vehicles by using photovoltaic components to connect to the grid to generate electricity. Background technique [0002] At present, there is a shortage of global energy, and automobiles are an important area of ​​energy consumption. The development and promotion of electric vehicles is of great significance to the realization of energy diversification and sustainable development. The automotive industry and major industrial countries attach great importance to the development of electric vehicles. my country has included the development of electric vehicles in the key areas of the national medium and long-term development strategy. Electric vehicle charging station is an important infrastructure for the industrialization and commercial operation of electric vehicles. With the increasing use of electric vehicles on the market, wh...

Claims

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Application Information

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IPC IPC(8): H02J7/35H02J7/00H01M10/44
CPCY02E10/58Y02E10/566Y02E10/56
Inventor 孙劲鹏原粉林冯智辉魏子海杨武保武振羽周民
Owner ENN SCI & TECH DEV
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