Intelligent motor power saver

A power-saving and intelligent technology, applied in motor generators/starters, starters of single multi-phase induction motors, AC motor control, etc., can solve problems such as waste of electric energy, low operating efficiency, and low load rate, and achieve guaranteed The effect of safety, prolonging service life and saving electric energy

Active Publication Date: 2014-10-29
JIANGYIN HONGLONG ENERGY SAVING TECH
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  • 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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  • Intelligent motor power saver
  • Intelligent motor power saver

Examples

Experimental program
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Embodiment 1

[0019] Example 1: This implementation provides a motor smart power saver, its working principle diagram is as follows figure 1 As shown, RST is a 380V voltage input terminal, and the 380V voltage is input to the voltage input interfaces 01 and 02 of the motor smart power saver, and the stable voltage is input to the power supply of the motor through the voltage stabilization feedback interface 13 and 14 .

[0020] The circuit diagram of the motor smart power saver provided in this embodiment is as follows figure 2 As shown, it includes a DC voltage regulator circuit, a pulse width modulation circuit, a half-bridge drive circuit, a high-frequency isolation transformer circuit and an overcurrent protection circuit.

[0021] The DC voltage stabilizing circuit includes a transformer T1, a bridge rectifier circuit, a filter capacitor C1, a current limiting resistor R2 and a voltage stabilizing diode D5, the voltage input end of the transformer T1 is connected to the power supply...

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PUM

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Abstract

The invention discloses an intelligent motor power saver. The intelligent motor power saver comprises a direct-current voltage stabilizing circuit, a pulse width modulation circuit, a half-bridge driver circuit and a high-frequency isolation transformer circuit; the direct-current voltage stabilizing circuit comprises a transformer T1, a bridge rectifier circuit, a filter capacitor C1, a current-limiting resistor R2 and a voltage stabilizing diode D5; the pulse width modulation circuit comprises a chip TL494 CN; the pin 8 of the chip TL494 CN is connected to the anode of the voltage stabilizing diode D5; the pin 9 and the pin 10 of the chip TL494 CN serve as driving signal output ends; the half-bridge driver circuit comprises a field-effect tube Q1 and a field-effect tube Q2; the pole G of the field-effect tube Q1 is connected with the pin 9 of the chip TL494 CN, the pole G of the field-effect tube Q1 is connected with the pin 10 of the chip TL494 CN, and the pole D of the field-effect tube Q1 and the pole D of the field-effect tube Q2 are connected with the input end of the high-frequency isolation transformer circuit, respectively.

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): H02P27/06H02P1/30H02H7/085H02H7/09
Inventor 邢明亮曹龙华
Owner JIANGYIN HONGLONG ENERGY SAVING TECH
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