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Intelligent motor energy saver

A power-saving and intelligent technology, applied in the direction of motor control, electrical components, control system, etc., can solve the problems of low operation efficiency, low load rate, waste of electric energy, etc.

Inactive Publication Date: 2016-06-29
QINGDAO TAIWEI MACHINE TOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These devices often have a low load rate, low operating efficiency, and the waste of electric energy is staggering.

Method used

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Embodiment Construction

[0014] A motor intelligent power saver according to the present invention includes a DC voltage stabilizing circuit, a pulse width modulation circuit, a half-bridge drive circuit and a high-frequency isolation transformer circuit, and the DC stabilizing circuit includes a transformer, a bridge rectifier circuit, and a filter capacitor , a current limiting resistor and a Zener diode, the voltage input end of the transformer is connected to the power supply of the power saver, the voltage output end of the transformer is connected to the input end of the bridge rectifier circuit, and the bridge rectifier The circuit and the filter capacitor are connected in parallel, the filter capacitor and the negative pole of the Zener diode are grounded, and the positive pole of the filter capacitor is connected to the positive pole of the Zener diode after being connected in series with the current limiting resistor; The wide modulation circuit includes a chip TL494CN, the pin 8 of the chip ...

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Abstract

The invention discloses an intelligent motor energy saver. The intelligent motor energy saver comprises a DC voltage stabilizing circuit, a pulse width modulation circuit, a half-bridge drive circuit, and a high-frequency isolation voltage transformation circuit. The DC voltage stabilizing circuit includes a transformer, a bridge type rectification circuit, a filtering capacitor, a current-limiting resistor, and a Zener diode. The pulse width modulation circuit includes a chip TL494CN. A pin 8 of the chip TL494CN is connected with a positive electrode of the Zener diode. A pin 9 and a pin 10 of the chip TL494CN are drive signal output ends. The half-bridge drive circuit includes a field effect transistor Q1 and a field effect transistor Q2. A G electrode of the field effect transistor Q1 is connected with the pin 9 of the chip TL494CN. A G electrode of the field effect transistor Q2 is connected with the pin 10 of the chip TL494CN. A D electrode of the field effect transistor Q1 and a D electrode of the field effect transistor Q2 are connected with an input end of the high-frequency isolation voltage transformation circuit.

Description

technical field [0001] The invention relates to a power saver, more specifically, the invention relates to a motor intelligent power saver. Background technique [0002] Motor saver is to adjust the input power of the motor at any time according to the load rate of the motor without changing the rated speed of the motor, so as to ensure the stable operation of the motor at the optimal load rate and reduce the copper loss, iron loss and stray energy of the motor. Loss and additional loss, so that the life of the motor is extended, but also greatly improve the operating efficiency of the motor, thereby achieving the purpose of saving electricity. At present, compared with developed countries, domestic motors generally have lower operating efficiency. This is because considering factors such as grid voltage fluctuations, equipment overload, and mechanical wear, 30% of the power margin is generally reserved when selecting motor equipment. . However, these devices rarely reach ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P29/00
Inventor 秦海鹏
Owner QINGDAO TAIWEI MACHINE TOOL
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