AC driver and processing method thereof

Abstract

The invention discloses an AC driver and a processing method thereof, comprising a start-stop control module, a load module, an AC power supply and an AC motor, the AC power supply is connected to the AC motor through the start-stop control module, and the AC motor is drivingly connected to the load module; the load module There is a load unit and a sensor for collecting the physical quantity inside the load unit. The start-stop control module is equipped with an MCU single-chip microcomputer and a non-arc switch for controlling the start and stop of the AC motor. One end of the non-arc switch is connected to the AC power supply, and the non-arc switch The other end of the MCU is connected to the AC motor; the physical quantity sensor is connected to the input end of the MCU single-chip microcomputer, and the output end of the MCU single-chip microcomputer is connected to the arcless switch; the MCU single-chip microcomputer is provided with a storage unit, and the storage unit stores the required work of the load unit. The arcless switch of the present invention realizes the safe restart of the AC motor, avoids a strong impact on the AC motor after shutdown, protects the AC motor, and achieves the effect of energy saving and power saving by frequent starting.

Description

technical field [0001] The invention relates to the technical field of motor control, in particular to an AC drive and a processing method thereof. Background technique [0002] According to the spirit of the green energy system in the 13th Five-Year Plan of the country, the most important thing to consider in the current design of AC drive power saving transformation is to consider green energy saving. At present, everyone agrees that the energy saving and consumption reduction of AC motors is the use of frequency converters as power-saving transformations. Now it has been proved that the use of frequency converters cannot achieve the expected energy saving goals, and a heavy environmental pollution price has to be paid. In order to carry forward the country's energy-saving renovation business, a new AC asynchronous motor power saver must be proposed. This power saver must be able to truly save electricity and have no side effects of environmental pollution. [0003] The h...

AI Technical Summary

Problems solved by technology

At present, the environmental pollution problem caused by frequency converters in the drive of medium and high-power motors is the most serious, which cannot be eradicated but can only be suppressed; but suppression requires reinvestment, and the efficiency will decline further

[0010] The energy-saving transformation of the frequency converter will reduce the efficiency of the entire power supply system and drive system, so the power-saving effect will be greatly reduced. pollution problem

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