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Novel automobile motor test power supply

A technology for motor testing and power supply devices, applied in the field of automobile manufacturing, can solve the problems of grid-side current containing a large number of harmonics and low power factor, and achieve the effects of convenient capacity expansion, less power loss, and simplified feedback logic

Inactive Publication Date: 2016-05-18
杨宴敏
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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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  • Novel automobile motor test power supply
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Embodiment Construction

[0024] The following will be further described in conjunction with the accompanying drawings, not to limit the scope of the present invention.

[0025] see Figure 1 to Figure 4 As shown, the present invention includes AC / DC power supply unit, public direct current bus control system, soft controller system and feedback bridge control circuit, and AC / DC power supply unit unit adopts parallel mode and no interconnection line independent control mode, is controlled by program to automobile The motor controller supplies electric energy or absorbs the feedback energy generated when the motor brakes. The discharge and feedback electric energy conversion time is short, the conversion process is stable, and the voltage ripple is small. The public DC bus control system includes rectification / feedback unit, public 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 ener...

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Abstract

The invention relates to a novel automobile motor test power supply, which comprises an AC / DC power supply unit, a common DC bus control system, a soft controller system and a feedback bridge control circuit. A parallel connection mode and a non-interconnection independent control mode are adopted by the AC / DC power supply unit, and the AC / DC power supply unit is controlled by a program to supply electric energy to an automobile motor controller or absorb feedback energy generated during braking of a motor. The discharging time and the conversion time of the feedback energy are short, the conversion process is stable, and voltage ripple is small. The common DC bus control system comprises a rectification / feedback unit, a common DC bus and an inversion unit. The feedback unit has an energy feedback mode through an autotransformer and an energy feedback mode without through the autotransformer. The novel automobile motor test power supply has broad application prospect in detection devices of the fields such as automobile motors and motors for household appliances.

Description

technical field [0001] The invention belongs to the technical field of automobile manufacturing, and in particular relates to a novel automobile motor test power supply device. Background technique [0002] When the locomotive brakes, the motor is in the state of regenerative braking and power generation, and the mechanical energy is converted into electrical energy; during the maintenance process of the battery pack, the charging and discharging test must be carried out regularly; all kinds of DC power supplies (linear power supply, switching power supply) need to be Aging test. The energy generated by all these processes can be recovered and recycled. At present, these renewable energies are basically discharged by means of resistance discharge devices, and the regeneration has not been realized, which is contrary to energy saving. Although there are also semi-controlled device thyristors for active inverter to feed energy back to the grid, but because the thyristors ado...

Claims

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Application Information

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IPC IPC(8): H02J1/10G01R31/34
Inventor 杨宴敏
Owner 杨宴敏
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