Intelligent motor power saver

A technology for intelligent motors and power savers, which is applied in motor generators/starters, starters of single multi-phase induction motors, AC motor control, etc., and can solve the problem of power terminal utilization rate of only 30% to 40%, low work efficiency, Low load rate and other problems, achieve significant power saving effect, convenient debugging and installation, and prolong service life

Inactive Publication Date: 2012-12-05
深圳市万禧环保节能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vast majority of motors often run under the conditions of no-load, light-load, medium-load and variable load (empty, light and heavy alternately work), low load rate (big horse-drawn cart), low work efficiency, and power terminal utilization The rate is only 30% to 40%, and the power loss is serious

Method used

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  • Intelligent motor power saver

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Embodiment Construction

[0014] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0015] figure 1 It is a structural schematic diagram of an intelligent motor power saver in a specific embodiment of the present invention. Such as figure 1 As shown, the intelligent motor saver includes a power adjustment unit, a voltage sampling unit, a zero detection unit, a sawtooth wave forming unit, a power adjustment signal synthesis unit, a square wave oscillator, a phase detection unit, a first current sampling unit, a switch, A second current sampling unit, a soft start unit, an overload protection unit, a phase loss protection unit, a soft stop unit and a start-up operation conversion unit.

[0016] The second current sampling unit is connected to the motor, the second current sampling unit is also connected to the power adjustment unit, the power adjustment unit is respectively connect...

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Abstract

The invention discloses an intelligent motor power saver. A second current sampling unit is connected with a motor and further connected with a power adjusting unit which is connected with a voltage sampling unit and a first current sampling unit respectively, the voltage sampling unit, a zero detection unit, a sawtooth wave formation unit and a power adjusting signal synthesizing unit are connected sequentially, the second current sampling unit, a phase demodulation unit and the power adjusting signal synthesizing unit are connected sequentially, the voltage sampling unit is further connected with the phase demodulation unit, and the power adjusting signal synthesizing unit is connected with the power adjusting unit through a shift switch which is connected with a square-wave oscillator. By adopting the technical scheme, input power of the motor can be adjusted according to load rate of the motor to guarantee the motor to work with optimal efficiency to improve actual working efficiency of the motor and achieve power-saving effects.

Description

technical field [0001] The invention relates to the technical field of power saving, in particular to an intelligent motor saver. Background technique [0002] The number of three-phase asynchronous motors used in my country accounts for more than 78% of the total number of various motors, and they are widely used. There are several or dozens of units in general enterprises, hundreds of units in large enterprises, and thousands of units in super-large enterprises. The electric energy consumed by them accounts for about 68% of the total industrial power consumption. However, the vast majority of motors often run under the conditions of no-load, light-load, medium-load and variable load (empty, light and heavy alternately work), low load rate (big horse-drawn cart), low work efficiency, and power terminal utilization The rate is only 30% to 40%, and the power loss is serious. Contents of the invention [0003] The purpose of the present invention is to propose an intellige...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P25/02H02P1/26H02H7/09H02H7/085H02P23/26
Inventor 范传伟
Owner 深圳市万禧环保节能科技有限公司
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