Load tracking type electricity saving device

A power-saving device and load-following technology, which is applied to electrical components, motor control, AC motor control, etc., can solve problems such as motor aging, and achieve the effects of energy saving, low failure rate, and obvious energy saving effect

Inactive Publication Date: 2015-02-04
KERUNNENG TIANJIN TECH DEV
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  • Claims
  • Application Information

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Problems solved by technology

And with the different use time of the motor, the motor will age

Method used

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  • Load tracking type electricity saving device
  • Load tracking type electricity saving device
  • Load tracking type electricity saving device

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[0021] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0022] Such as figure 2 , image 3 As shown, a load tracking type power saving device of the present invention includes a power supply circuit unit 10, an oscillation circuit unit 20, a comparison controller circuit unit 30, a drive circuit unit 40, an output current detection circuit unit 50, and an inverter circuit unit 60. The output current detection circuit unit 50 is used to obtain relevant parameters of the motor in real time; wherein the relevant parameters include the three-phase input current, three-phase input voltage, electrical phase angle and speed of the motor, and the comparator circuit unit 30, It is used to obtain the load factor of the motor in real time, and through optimization calculations to obtain the voltage, current and frequency control variables that enable the motor to always run at the highest efficiency under different...

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Abstract

The invention discloses a load tracking type electricity saving device. A power supply circuit unit and an output current detecting circuit unit are respectively and electrically connected with a comparison controller circuit unit; the comparison controller circuit unit is electrically connected with an inverter circuit unit which is connected in series with a single-phase AC power output end by virtue of a drive circuit unit; a thermal protector FR is connected in series between the output end of the single-phase AC power and a load motor. The load tracking type electricity saving device has the beneficial effects that: as the output current detecting circuit after subjected to analogue-digital conversion is adopted to directly drive a photoelectric coupler, a bidirectional thyristor controls a high-power single-way thyristor in the inverter circuit through phase shift, the current value and the voltage value input to a motor load are enabled to be minimum according to real-time change of volt-ampere characteristic curve of the motor while a motor load torque is satisfied, and the purpose of saving electricity is further realized; the load tracking type electricity saving device has no influence to normal work of the motor, is simple in structure and low in fault rate, can run in a fully automatic manner, has a relatively wide application range and achieves an obvious energy-saving effect.

Description

technical field [0001] The invention relates to the technical field of power-saving devices; in particular, it relates to a load-following type power-saving device for a motor with real-time detection, real-time feedback and real-time control. Background technique [0002] The effective use of energy is a worldwide issue, which is directly related to the survival and development of human beings. There is no country that is not struggling to find an effective solution to the energy problem. The reserves of petrochemical energy are limited, so the focus of solving energy problems naturally falls on the development of new energy and the energy conservation of existing energy. Electric energy is one of the most widely used energy sources, and it is also the most important part of energy consumption. Power saving is the most important topic of energy saving. [0003] Now the three-phase AC asynchronous motor has become one of the most commonly used industrial production equipmen...

Claims

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Application Information

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IPC IPC(8): H02P27/06H02P23/14
CPCH02P27/06H02P2205/01Y02P80/10
Inventor 郑镇朋
Owner KERUNNENG TIANJIN TECH DEV
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