Charging-discharging converter of electric vehicle battery pack

An electric vehicle and inverter technology, which is applied in electric vehicle charging technology, electric vehicle, battery load switching, etc., can solve the problems of occupying vehicle space, occupying large land, and low work efficiency.

Inactive Publication Date: 2020-01-17
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the related service fields of electric vehicles also need to develop rapidly. In order to meet the energy demand of electric vehicles in the market, large-scale construction of charging piles is required, but the application of charging piles has not yet been fully popularized, and the construction of charging stations will occupy a lot of land; At present, there are split car chargers and car inverters on the market, which not only have low work efficiency but also occupy the space of the car

Method used

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  • Charging-discharging converter of electric vehicle battery pack

Examples

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Embodiment Construction

[0010] A charge and discharge converter for an electric vehicle battery pack is mainly composed of a power grid 1, a full-bridge converter 2, a two-way DC / DC3, a battery 4, a DSP control unit 5 and a panel display 6, and is characterized in that: the power grid 1 is connected to full bridge converter 2, full bridge converter 2 is connected to bidirectional DC / DC3, bidirectional DC / DC3 is connected to battery 4, grid 1, full bridge converter 2, bidirectional DC / DC3, The storage batteries 4 are connected to the DSP control unit 5, and the panel display 6 is connected to the DSP control unit 5.

[0011] The full-bridge converter 2 is an IGBT full-bridge converter with a filter. The converter uses a classic voltage source single-phase full-bridge converter circuit topology; the AC side of the converter is added with an LCL filter, The filter with this structure has strong filtering capability and high THDi index, which is suitable for intermediate and advanced filter circuits. At the...

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Abstract

The invention discloses a charging-discharging converter of an electric vehicle battery pack, and belongs to the technical field of electric energy. The converter is mainly composed of a power grid, afull-bridge converter, a bidirectional DC/DC, a storage battery, a DSP control unit and a panel display, and is characterized in that the power grid is connected with the full-bridge converter, the full-bridge converter is connected with the bidirectional DC/DC, and the bidirectional DC/DC is connected with the storage battery; the power grid, the full-bridge converter, the bidirectional DC/DC and the storage battery are all connected with the DSP control unit, and the display panel is connected with the DSP control unit. According to the charging-discharging converter of the electric vehiclebattery pack, when the electric vehicle battery pack needs to be charged, the converter is connected with a standard mains supply alternating current socket through a cable to charge the electric vehicle battery pack, and the plug and charge is achieved; when a vehicle runs outside or a family is powered off, the electric vehicle battery pack is used as a standby power supply, and the standard alternating-current electric energy is generated through the converter.

Description

Technical field [0001] The invention relates to a charge and discharge converter for an electric vehicle battery pack, belonging to the technical field of electric energy. Background technique [0002] The increase in the total number of vehicles has made exhaust gas one of the most important sources of air pollution in modern cities, leading to the rapid consumption of a large amount of non-renewable energy. In the environment of vigorously developing energy conservation and emission reduction and promoting the development of low-carbon economy, energy-saving and environmentally-friendly new energy vehicles represented by electric vehicles have received attention and promotion. At the same time, the related service areas for electric vehicles also need to develop rapidly. In order to meet the energy demand of electric vehicles in the market, it is necessary to build charging piles on a large scale, but the application of charging piles has not been fully popularized, and the con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/02H02J7/00B60L53/00
CPCH02J7/0068Y02T10/70Y02T10/7072Y02T10/92Y02T90/14
Inventor 贺贤俊陈晓琪刘东东
Owner NORTHWEST A & F UNIV
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