High-frequency multiphase interleaved conversion device and control method

A conversion device, multi-phase interleaving technology, applied in output power conversion devices, control/regulation systems, conversion of DC power input to DC power output, etc., can solve problems such as slow dynamic response, reduce power requirements, and reduce manufacturing. cost, the effect of improving the application value

Inactive Publication Date: 2013-09-18
NORTHEASTERN UNIV +1
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  • Application Information

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Problems solved by technology

Although fuel cells have many advantages, they also have the disadvantage of slow dynamic response. Therefore, fuel cells in new energy vehicles sh

Method used

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  • High-frequency multiphase interleaved conversion device and control method
  • High-frequency multiphase interleaved conversion device and control method
  • High-frequency multiphase interleaved conversion device and control method

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Embodiment Construction

[0041] An embodiment of the present invention will be further described below in conjunction with the accompanying drawings.

[0042] Such as figure 1 As shown, a high-frequency multi-phase interleaving conversion device includes a drive and power amplification unit 2, an EV manager module 3, an AD sampling module 4, a DSP 5, a serial communication module 6, a human-computer interaction module 7, and a DC voltage detection circuit 8. The DC voltage conditioning circuit 9, the current detection circuit 10 and the current conditioning circuit 11 also include a main circuit 1, and the main circuit includes a first inductor L 1 , the second inductance L 2 , the third inductance L 3 , the first power unit, the second power unit, the third power unit, the capacitor C and the load R, where the first inductor L 1 It is connected in series with the first power unit to form the first bridge arm; the second inductance L 2 It is connected in series with the second power unit to form t...

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Abstract

The invention relates to a high-frequency multiphase interleaved conversion device and a control method, and belongs to the field of power electronics and electric drive. The device comprises a drive and power amplification unit, an EV (Electric Vehicle) manager module, an AD (Analog-Digital) sampling module, a DSP (Digital Signal Processor) processor, a serial port communication module, an HCI (Human-Computer Interaction) module, a DC (Direct Current) voltage detection circuit, a DC voltage conditioning circuit, a current detection circuit, a current conditioning circuit and a main circuit. The system adopts a double closed-loop control technology and a new topological structure to realize system stability and broad stability margin; three inductors at the front end of the topological structure work alternately, and the equivalent switching frequency is 6 times of the traditional switching frequency, so that the whole converter has high frequency, and the output voltage and the ripple amplitude and harmonic component of current are reduced; and the equal-time work of the three front-end inductors per unit time reduces the power requirements on power components IGBT (Insulated Gate Bipolar Transistor) and diodes, reduces the manufacturing cost of the whole device, and improves the application value of the DC converter.

Description

technical field [0001] The invention belongs to the field of power electronics and electric transmission, and in particular relates to a high-frequency multi-phase interleaved conversion device and a control method. Background technique [0002] In recent years, due to the shortage of traditional energy (petroleum, coal, etc.) and the impact on the environment during its use, people are actively looking for new energy to replace traditional energy or to find new ways to use traditional energy more efficiently, which makes The issue of new energy has received widespread attention. With the development of the world economy, automobiles have become one of the important tools for people to travel, followed by a large amount of vehicle exhaust emissions and the consumption of a large amount of traditional energy, people began to pay attention to pure electric vehicles, fuel hybrid vehicles, gasoline-electric hybrid vehicles, etc. Development of new energy vehicles. [0003] At ...

Claims

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Application Information

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IPC IPC(8): H02M3/155H02M1/14
Inventor 张化光闫士杰张炳义王旭刘秀翀褚恩辉蒋大用
Owner NORTHEASTERN UNIV
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