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    Home > Chemicals Industry > Chemical Technology > Guangxi built the first wireless power supply lane for electric vehicles in China

    Guangxi built the first wireless power supply lane for electric vehicles in China

    • Last Update: 2022-11-20
    • Source: Internet
    • Author: User
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    In the high-voltage test base of the Electric Power Research Institute of Guangxi Power Grid Company, there is the first wireless power supply lane
    for electric vehicles that provides electric energy for vehicles through wireless energy transmission.
    As long as the electric vehicle is driven to the designated location, no additional action is required, the vehicle can be automatically recognized and charged
    .

    The driver drives the electric car to the designated location without additional action to automatically identify the vehicle and charge
    the on-board battery without direct wire contact with the air gap through magnetic field-based wireless power transfer technology.
    At the same time, it can monitor the charging status of the vehicle in real time and protect the charging process to prevent various emergencies
    .

    According to Zhu Wenji, Dr.
    Zhu Wenji of the Smart Grid and Demand Side Research Institute of the Electric Power Research Institute of Guangxi Power Grid Corporation, the "Research on Key Technologies of Wireless Power Transmission for Smart Grid" was implemented by the Electric Power Research Institute of Guangxi Power Grid Co.
    , Ltd.
    and passed the review and acceptance
    of Guangxi Power Grid Co.
    , Ltd.
    in December 2015 。 The project developed an engineering design platform for wireless power transmission systems, developed a stationary electric vehicle charging device, and successfully built the first small test track for wireless power supply for electric vehicles in China.
    The first set of transmission and distribution line monitoring terminal wireless power supply system in China was developed, and the installation and commissioning
    of distribution lines and transmission line online monitoring terminal wireless power supply demonstration projects were completed in Liuzhou Power Supply Bureau and Hezhou Power Supply Bureau of Guangxi Power Grid.

    Electric vehicle wireless charging technology has convenience, no need to stop, just drive along the guide rail to charge; The on-board battery requirements are low, and the battery is only used as a backup in places without guides; Strong endurance, you can drive where there is a guide rail; Strong environmental adaptability, can also be used normally in rainy and snowy weather and humid environments; Low cost, reduce the on-board battery, reduce weight, save space and other advantages, and the wireless charging/power supply system mainly uses power electronic devices for long-term operation generally will not fail, and the later maintenance is very convenient
    .

    At present, the charging method of electric vehicles on the market is mainly wired charging
    .
    This charging method requires the use of charging cables to connect the charger and the electric vehicle, and there is a large charging current (especially in the fast charging mode), which makes the connector bulky and affects the aesthetics; When charging, you need to stop first, and then connect the charging cable on the charger to the charging interface on the electric vehicle, which is cumbersome, time-consuming and laborious to operate; Due to the mechanical friction between the socket and the plug, the charging effect is affected after long-term use; In some cases (such as aging of the cable, rain and snow, forgetting to unplug the connector after charging, and accidentally pulling the connecting cable, etc.
    ), it is easy to cause leakage, resulting in safety accidents
    .
    The wireless charging technology of electric vehicles overcome by Guangxi Power Grid Company has solved these problems
    .

    In the high-voltage test base of the Electric Power Research Institute of Guangxi Power Grid Company, there is the first wireless power supply lane
    for electric vehicles that provides electric energy for vehicles through wireless energy transmission.
    As long as the electric vehicle is driven to the designated location, no additional action is required, the vehicle can be automatically recognized and charged
    .

    Electric vehicle

    The driver drives the electric car to the designated location without additional action to automatically identify the vehicle and charge
    the on-board battery without direct wire contact with the air gap through magnetic field-based wireless power transfer technology.
    At the same time, it can monitor the charging status of the vehicle in real time and protect the charging process to prevent various emergencies
    .

    According to Zhu Wenji, Dr.
    Zhu Wenji of the Smart Grid and Demand Side Research Institute of the Electric Power Research Institute of Guangxi Power Grid Corporation, the "Research on Key Technologies of Wireless Power Transmission for Smart Grid" was implemented by the Electric Power Research Institute of Guangxi Power Grid Co.
    , Ltd.
    and passed the review and acceptance
    of Guangxi Power Grid Co.
    , Ltd.
    in December 2015 。 The project developed an engineering design platform for wireless power transmission systems, developed a stationary electric vehicle charging device, and successfully built the first small test track for wireless power supply for electric vehicles in China.
    The first set of transmission and distribution line monitoring terminal wireless power supply system in China was developed, and the installation and commissioning
    of distribution lines and transmission line online monitoring terminal wireless power supply demonstration projects were completed in Liuzhou Power Supply Bureau and Hezhou Power Supply Bureau of Guangxi Power Grid.

    Electric vehicle wireless charging technology has convenience, no need to stop, just drive along the guide rail to charge; The on-board battery requirements are low, and the battery is only used as a backup in places without guides; Strong endurance, you can drive where there is a guide rail; Strong environmental adaptability, can also be used normally in rainy and snowy weather and humid environments; Low cost, reduce the on-board battery, reduce weight, save space and other advantages, and the wireless charging/power supply system mainly uses power electronic devices for long-term operation generally will not fail, and the later maintenance is very convenient
    .

    At present, the charging method of electric vehicles on the market is mainly wired charging
    .
    This charging method requires the use of charging cables to connect the charger and the electric vehicle, and there is a large charging current (especially in the fast charging mode), which makes the connector bulky and affects the aesthetics; When charging, you need to stop first, and then connect the charging cable on the charger to the charging interface on the electric vehicle, which is cumbersome, time-consuming and laborious to operate; Due to the mechanical friction between the socket and the plug, the charging effect is affected after long-term use; In some cases (such as aging of the cable, rain and snow, forgetting to unplug the connector after charging, and accidentally pulling the connecting cable, etc.
    ), it is easy to cause leakage, resulting in safety accidents
    .
    The wireless charging technology of electric vehicles overcome by Guangxi Power Grid Company has solved these problems
    .

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