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Energy consumption braking method and device

A technology of energy consumption braking and braking mode, applied in the direction of electric motor/converter plug, etc., can solve the problems of not particularly obvious braking effect, reduce system reliability, increase peripheral devices, etc., achieve fast braking speed, Improve practicality and reduce energy

Active Publication Date: 2017-03-22
SHANGHAI STEP ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first method needs to increase peripheral devices, increase the cost, and reduce the overall reliability of the system; the second method has no obvious braking effect, and can only be used at low frequencies. At the same time, this method consumes all energy to the motor on, will affect the life of the motor

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  • Energy consumption braking method and device
  • Energy consumption braking method and device

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

[0036] The first embodiment of the present invention relates to a dynamic braking method, the specific process is as follows figure 1 shown, including the following steps:

[0037] Step 101, the user presets the braking control mode of the frequency converter. Wherein, the braking control mode is a vector braking mode or a...

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Abstract

The invention relates to a braking technology and discloses a dynamic braking method and device. The dynamic braking method comprises the following steps that a user presets a braking control mode of a frequency changer; the braking control mode is a vector braking mode or a scalar braking mode; whether the preset braking control mode is the vector braking mode is judged; if yes, the vector braking mode is carried out, and vector braking is carried out on a motor; and otherwise, the scalar braking mode is carried out, and scalar braking is carried out on the motor. Compared with the prior art, under the condition that periphery parts are not increased, the motor is braked, cost is saved, meanwhile, the motor can be braked at whole frequency bands, practicability is high, braking speed is high, and the service life of the motor is prolonged.

Description

technical field [0001] The invention relates to braking technology, in particular to a method and device for energy consumption braking. Background technique [0002] At present, there are mainly two methods for energy-consuming braking of frequency converters: (1) braking through braking resistors; (2) braking using DC braking. The first method needs to increase peripheral devices, increase the cost, and reduce the overall reliability of the system; the second method has no obvious braking effect, and can only be used at low frequencies. At the same time, this method consumes all energy to the motor On, it will affect the life of the motor. Contents of the invention [0003] The purpose of the present invention is to provide a dynamic braking method and device, so that the motor can be braked without adding peripheral devices, saving costs; at the same time, the motor can also be braked in the full frequency range, Strong practicability; and the braking speed is fast, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P3/06
Inventor 李兴鹤金辛海蔡新波宋吉波张震宇吴芸李武君王亮平吴浩
Owner SHANGHAI STEP ELECTRIC