Permanent magnet electric drive vehicle power supply system and control method thereof

A power supply system and electric drive technology, applied in the field of permanent magnet electric drive vehicle power supply system and its control, can solve the problems of low utilization efficiency of super capacitors, large generator current amplitude and fluctuation, etc.

Inactive Publication Date: 2017-06-13
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a permanent magnet electric drive vehicle power supply system and its control method to solve the technical problem of low utilization efficiency of supercapacitors caused by the large generator current amplitude and fluctuation in the existing permanent magnet electric drive vehicle power supply system

Method used

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  • Permanent magnet electric drive vehicle power supply system and control method thereof
  • Permanent magnet electric drive vehicle power supply system and control method thereof
  • Permanent magnet electric drive vehicle power supply system and control method thereof

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Embodiment Construction

[0032] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] see figure 1 As shown, the present invention provides a permanent magnet electric drive vehicle power supply system, which includes: a generator, a supercapacitor, a DC converter and a power bus, the generator is connected to the power bus, and the supercapacitor is converted through the DC The device is electrically connected to the power bus.

[0034] Wherein, the power bus of the present invention is equipped with a rectifier connected to the output end of the generator, a DC bus connected to the output end of the rectifier, and an inverter connected to the DC bus, and the output end of the DC converter is connected to the DC bus. And connect the DC converter i...

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Abstract

The invention provides a permanent magnet electric drive vehicle power supply system and a control method thereof. The charge state of a super capacitor is adjusted so that the power compensation of the super capacitor to a generator can be fully and effectively achieved; and then a reference current of the super capacitor is optimized based on the charge state of the super capacitor so that the utilization rate of the super capacitor can be increased, thus, the amplitude value and the fluctuation range of a current of the generator are effectively reduced, and then the generator is protected.

Description

technical field [0001] The present invention relates to the technical field of power supply for permanent magnet electric drive vehicles, and more particularly, to a power supply system for permanent magnet electric drive vehicles and a control method thereof. Background technique [0002] Due to the increasingly serious environmental pollution and the deepening of the energy crisis, hybrid electric vehicles have developed into an inevitable trend by virtue of their advantages of energy saving and environmental protection. The core of the theory of environmental protection and energy saving of hybrid electric vehicles is to use the energy storage system to "shave the peak and fill the valley" of the power required by the working condition, and recover the kinetic energy during braking, so that the efficiency of the entire power system is higher. Over the past ten years, hybrid electric vehicles (HEVs) have been well developed in both commercial and civilian applications. ...

Claims

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Application Information

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IPC IPC(8): B60L11/00
CPCB60L50/40Y02T10/70Y02T10/72
Inventor 黄守道高剑陈峰泉荣飞罗德荣
Owner HUNAN UNIV
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