Load tracking type electricity saving device

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...

AI Technical Summary

Problems solved by technology

And with the different use time of the motor, the motor will age, and the corresponding parameters will also change accordingly.

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