High-efficiency intelligent duplicate voltage compensation power saver

Abstract

The invention discloses a high-efficiency intelligent duplicate voltage compensation power saver. The high-efficiency intelligent duplicate voltage compensation power saver comprises a logic control module and three power saving processing systems. Each of the power saving processing systems comprises a duplicate auto-transformer, the duplicate auto-transformer is connected to an alternating power supply primary circuit of a three-phase alternating power supply after being connected in parallel with a filter circuit, a power factor improving circuit and a bypass circuit in the corresponding power saving processing system, and the alternating power supply primary circuit is connected in series with a composite protection circuit and a breaker. The logic control module is connected with a zeroing switch, a wire inlet switch and a wire outlet switch of each duplicate auto-transformer through control wires. The high-efficiency intelligent compound voltage compensation power saver comprises a measuring statistics circuit, a remote signaling and control module, a man-machine interaction system and a communication module. The high-efficiency intelligent compound voltage compensation power saver is low in equipment cost and high in power saving rate and voltage stabilization rate, can achieve automatic operation and remote manual control and has the advantages of intelligent adjustment, high efficiency and low cost.

Description

technical field [0001] The invention relates to an electric device, in particular to a high-efficiency intelligent compound voltage compensation power saver. Background technique [0002] Capacitance compensation for power-saving devices is the earliest power-saving method. It started in the 1960s. It is a power-saving method that uses the energy storage characteristics of capacitors to compensate reactive power for lines and power equipment, but it can only be improved to a limited extent. The power supply quality of the power grid and the improvement of the power factor of the line are difficult to achieve better compensation for the changing load in the power supply circuit of the power equipment running on load, and are subject to many restrictions in application. [0003] After years of research and development, the energy-saving technology has made great progress, with higher energy-saving efficiency and better stability. The existing energy-saving technologies general...

AI Technical Summary

Problems solved by technology

This method has low efficiency, poor power factor, and high cost. In the energy-saving application of motors, fans and water pumps, the value of its active power saving rate is very low, and for applications with a load greater than 65% and a power factor greater than 0.7 The object is extremely inapplicable, the equipment failure rate is high, and it does not have the conditions for widespread promotion and use

[0005] ②Thyristor voltage regulation technology, which uses the change of the conduction angle of the thyristor to reduce the voltage to achieve the purpose of saving electricity. Although it has a certain power-saving effect, it causes serious distortion of the sine wave during the voltage regulation process. The output is unstable, and it also leads to a large number of harmonics and peak voltages, polluting the grid, the use effect is poor, and the use range is very narrow, limited to the variable load of the motor, light load and low power factor load range

Its core technology is to dynamically track the change of the load of the motor, adjust the voltage and current during the operation of the motor, without changing the speed of the motor, without affecting the normal operation of the motor, and avoiding the waste of electric energy caused by the excessive output of the motor. Dynamic power-saving control function, but because of its high cost, its application range is limited

[0010] A comprehensive analysis of the existing energy-saving technologies shows that some technologies have better power-saving effects, can better filter out clutter, and can well meet the requirements of use, but the price is too high to be widely used; the other part of the technology although The price is low, but its power saving effect is not good, the output voltage is unstable, the power of the load is limited, and it cannot meet the actual production requirements

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