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New energy automobile motor test power supply

A new energy vehicle, motor testing technology, applied in the direction of motor generator testing, electrical measuring instrument parts, measuring electricity, etc., can solve the problems of grid-side current containing a lot of harmonics, low power factor, etc., to achieve convenient capacity expansion , The effect of less power loss, convenient and free energy supply and absorption

Inactive Publication Date: 2012-02-22
张文武
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are also semi-controlled device thyristors used for active inverter to feed energy back to the grid, but because the thyristors adopt a phase control method, the grid-side current contains a large number of harmonics during operation, and the power factor is low

Method used

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  • New energy automobile motor test power supply
  • New energy automobile motor test power supply
  • New energy automobile motor test power supply

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Embodiment Construction

[0024] The following further description with reference to the drawings does not limit the scope of the present invention.

[0025] See Figure 1 to Figure 4 As shown, the present invention includes an AC / DC power supply unit, a common DC bus control system, a soft controller system, and a feedback bridge control circuit. The AC / DC power supply unit adopts a parallel mode and an independent control mode without interconnection, and is controlled by a program to the car The motor controller supplies electric energy or absorbs the feedback energy generated when the motor is braking. The discharge and feedback energy conversion time is short, the conversion process is stable, and the voltage ripple is small. The common DC bus control system includes rectifier / feedback unit, common DC bus, and inverter unit , The feedback unit is divided into two ways: energy feedback through the autotransformer and energy feedback without the autotransformer. The energy feedback through the autotran...

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Abstract

The invention relates to a new energy automobile motor test power supply which comprises an AC / DC power supply unit, a common direct current bus control system, a soft controller system and a feedback bridge control circuit. The AC / DC power supply unit employs a parallel connection mode and a wireless independent control mode, and is controlled by a program to supply electric energy for an automobile motor controller or absorb feedback energy generated by a motor in braking. Discharge and feedback electric energy conversion time are short. A conversion process is stable. Voltage pulsation is small. The common direct current bus control system comprises a rectification / feedback unit, a common direct current bus, an inversion unit. The feedback unit has two modes of energy feedback through an auto transformer and energy feedback not through the auto transformer. The new energy automobile motor test power supply has wide application prospect in detection equipment in fields of an automobile motor, a household electrical appliance motor and the like.

Description

Technical field [0001] The invention belongs to the technical field of automobile manufacturing, and particularly relates to a new energy automobile motor test power supply. Background technique [0002] When the locomotive is braking, the motor is in the state of feedback braking and generating operation, and the mechanical energy is transformed into electric energy; the battery pack must be charged and discharged regularly during the maintenance process; various DC power supplies (linear power supplies, switching power supplies) must be carried out before leaving the factory Aging test. The energy produced by all these processes can be recycled and reused. At present, these renewable energies basically use resistance discharge devices for resistance discharge, without realizing regeneration and utilization, which is contrary to energy saving. Although there are also semi-controlled thyristors for active inversion to feed energy back to the grid, because the thyristors are pha...

Claims

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Application Information

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IPC IPC(8): G01R1/28G01R31/34H02M7/66
Inventor 张文武高德欣窦明武段俊勇
Owner 张文武
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