Regenerative braking chopping speed regulator for dc motor

A technology for regenerative braking, DC motors, applied in the direction of reduction gears of DC motors, electric motor/converter plugs, excitation or armature current control, etc.

Inactive Publication Date: 2005-03-16
沈阳新阳光机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This circuit has a shortcoming, the kinetic energy of the vehicle eventually turns into heat energy during electric braking, which is consumed by the braking resistors R1 and R2

Method used

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  • Regenerative braking chopping speed regulator for dc motor
  • Regenerative braking chopping speed regulator for dc motor

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Embodiment Construction

[0017] according to Figure 1-2 The specific structure of the present invention will be described in detail. The device is improved on the basis of the structure of the existing safe and reliable DC motor chopper speed regulating device, and it includes series excitation motor main circuit, regenerative braking power generation circuit and other components. The main circuit of the series-excited motor is composed of switch K1, filter inductor L0, traction contactor Q, motor armature winding MQ connected through changeover contactor QZ1 or QF1, QZ2 or QF2, excitation winding FQ, insulated gate bipolar transistor module M and power supply. In this embodiment, the insulated gate bipolar transistor module M is used as the switching element of the main circuit of the series-excited motor. The insulated gate bipolar transistor module M used can also use other electronic components with the same function as switching elements. The regenerative braking power generation circuit is c...

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Abstract

The invention is a regenerative braking DC motor chopping speed regulator, including a main circuit of series excitation motor and a generating circuit, and its technical key point: the generating circuit is a regenerative braking generating circuit and an end of the main circuit is connected with the public end of two switching contactors of the regenerative braking generating circuit. It improves on the basis of existing technical structure and its structural distribution is more reasonable and as braking, it converts kinetic energy of vehicle to electric energy and stores the electric energy or supply the electric energy to running electric car to use.

Description

technical field [0001] The invention relates to a DC motor speed control device for trams, in particular to a DC motor chopper speed control device for traction of urban light rail, trackless, tramcars, traction mines, and regenerative braking of electric locomotives in factories. Background technique [0002] At present, there are many types of DC motor speed control devices used for traction of urban light rail, trackless, trams, mines, and factory electric locomotives. However, the existing DC motor speed control devices are limited by their circuit structure, and only energy consumption braking is available. There is no regenerative braking function, resulting in a great waste of energy. [0003] According to the problems of high cost, many faults, difficult maintenance, and unstable braking effect of the traditional DC motor speed control device, the inventor successively designed an energy-saving DC motor chopper speed control device (patent No. 02274322.7) and Safe a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P3/14H02P7/28
Inventor 付电明
Owner 沈阳新阳光机电科技有限公司
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