AC high voltage high power adjustable CVCF power apparatus and its emendation method

Abstract

The invention discloses an AC high voltage high-power adjustable voltage-stabilizing constant frequency power supply apparatus and correction method thereof, including an input terminal sensor, phase-shifting transformator, a sampling device, a power part, an embedded system, and an output terminal sensor. The input terminal sensor is linked to the cable jumper of the electric network and the phase-shifting transformator, the output terminal sensor is linked to the cable jumper of the power part and the load, the sampling device is linked with the input terminal and the output terminal sensors, the embedded system is linked to the power part and the sampling device separately. The method includes the steps of initialization firstly; then calculating a regulation proportionality value; thirdly, scaling the memory address of a corresponding power unit control signal of the regulation proportionality value in a chip; finally, outputting the control signal in the chip address to the powerunit. The voltage gradation is high, the input capacity is large, the voltage is stable and reliable, the operation is reliable, and the regulation capability is strong.

Description

Technical field: [0001] The invention relates to an AC high-voltage high-power adjustable voltage-stabilized frequency power supply device, and also relates to a calibration method for the AC high-voltage high-power adjustable voltage-stabilized frequency power supply device. The method includes open-loop and closed-loop calibration methods. The output of the device is Both voltage and frequency can be adjusted as required. Background technique: [0002] The existing AC high-voltage regulated power supply device is limited by the withstand voltage level of power devices, and mainly adopts two technical solutions. One is the high-low-high scheme, which uses an input transformer to reduce high-voltage AC power to low-voltage AC power, and then uses a step-up transformer to output high-voltage AC power after completing low-voltage stabilization. This solution has some disadvantages: the current in the intermediate low-voltage link is too large, which limits the scope of applic...

AI Technical Summary

Problems solved by technology

This solution has some shortcomings: the current in the middle low-voltage link is too large, which limits the scope of application of the device; the efficiency is low, and the power loss is large; the volume of the whole device is too large

There are also some problems in this solution: the output current has a large harmonic content, and the input and output need to be equipped with filters; the input power factor is low, which affects the power quality of the grid

[0003] At the same time, the AC high-voltage regulated power supply that adopts the above two technical solutions still has some shortcomings in actual use: the structure of the device is not reasonable, and when a certain part fails, it often needs to be shut down to repair the whole machine, which is difficult to meet the operating requirements. reliability requirements

In addition, the output voltage and frequency are fixed, or the adjustment range is limited, which cannot meet the requirements of different working conditions.

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