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Energy-saving type motor control system

A motor control and control system technology, applied in the electronic field, can solve the problems of high energy consumption and achieve the effects of reducing failure rate, avoiding damage, and avoiding voltage shock

Inactive Publication Date: 2015-07-15
CHENGDU JIELONG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the defect that the current motor consumes too much energy, and to provide an energy-saving motor control system

Method used

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Embodiment

[0021] Such as figure 1 As shown, the present invention consists of a motor 5, a control system 2, a voltage detection device 1 connected with the control system 2, a motor protection system 3 connected with the voltage detection device 1, a frequency conversion control system 4 connected with the motor 5 and a dynamic It consists of a power correction circuit 7 and a harmonic elimination device 6 connected with the frequency conversion control system 4 .

[0022] In order to better realize the purpose of the present invention, the motor protection system 3 is also connected with the motor 5, and the control system 2 is connected with the external power grid, and the frequency conversion control system 4 is connected with the control system 2 after passing through the amplifier P1 and the capacitor C1 in sequence. Connection, that is, after the external voltage is output by the control system 2, it is filtered by the capacitor C1 and amplified by the amplifier P1, and then sen...

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Abstract

The invention discloses an energy-saving type motor control system. The system is characterized by comprising a motor (5), a control system (2), a voltage detecting device (1), a motor protecting system (3), a frequency converting control system (4), a dynamic power correcting circuit (7) and a resonance elimination device (6), wherein the voltage detecting device (1) is connected with the control system (2), the motor protecting system (3) is connected with the voltage detecting device (1), the frequency converting control system (4) and the dynamic power correcting circuit (7) are connected with the motor (5), and the resonance elimination device (6) is connected with the frequency converting control system (4); the control system (2) is connected with an external power grid, the frequency converting control system (4) sequentially passes by an amplifier P1 and a capacitor C1 and is connected with the control system (2), the motor protecting system is further connected with the motor (5), and both the resonance elimination device (6) and the dynamic power correcting circuit (7) are connected with the control system (2). The frequency converting control system is adopted to control the motor, so that the energy saving efficiency reaches 30%; meanwhile, closed-loop constant voltage control as well as soft stop and soft start of the motor can be realized.

Description

technical field [0001] The invention relates to the field of electronics, in particular to an energy-saving motor control system. Background technique [0002] At present, energy conservation and emission reduction and environmental issues have become the focus of people's increasing attention. With the gradual implementation of the national energy conservation and emission reduction plan, industrial enterprises are trying various methods to reduce energy consumption in various new or reconstruction projects. The motor is the main power device of industrial enterprises, and it is widely used in various working conditions. According to relevant data, various electric motors consume the most energy in industrial enterprises. The power consumption of motors in my country accounts for 60% of the country's power consumption. %-70%, in order to meet the requirements of energy saving and emission reduction, all enterprises are trying to reduce the energy consumption of motors. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P23/00H02P27/04
Inventor 王艳
Owner CHENGDU JIELONG TECH CO LTD
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