Non-complementary chop controlling intelligent AC voltage-stabilizing and pressure regulating method and device

Abstract

The invention discloses a non-complementary chopping-control intelligent AC voltage-stabilizing and voltage-regulating method and a device. The voltage signal and the current signal of a circuit are collected and processed by a signal collecting module (1) and then converted to a timing control signal by an input signal combining module (2); the timing control signal is input to a timing interlock module (4); and the signals of a PWM wave signal generating module (3) and the timing interlock module (4) are simultaneously input to a signal modulating module (6) to obtain a PWM impulse control signal which is modulated by the timing control signal. The method and the device adopt an embedded single-chip microcomputer as the core to control and complete the processes relating to the power signal collection, the PWM signal generation and regulation, the non-complementary chopping-control signal generation and the circuit protection. Compared with the prior art using the hardware technique or the computer control technique with regard to the PWM signal generation and regulation, the circuit structure is differentiated and improved essentially at the levels, and the control accuracy and the overall stability and reliability are greatly increased .

Description

technical field [0001] The invention relates to a non-complementary chopping control type intelligent AC voltage stabilization and voltage regulation method and device, belonging to the non-complementary chopping control type AC voltage stabilization and voltage regulation technical field. Background technique [0002] In the prior art, most of the voltage stabilizers and voltage regulators used in large quantities are electromagnetic or thyristor devices. The electromagnetic device has the disadvantages of electromagnetic shifting, carbon brush flash shock, complex processing technology, large consumption of non-ferrous metal materials, and bulky products; the main disadvantage of the thyristor device is that it destroys the integrity of the output voltage waveform. , and generate a large number of harmonics, causing electromagnetic pollution. The following problems also exist in the newer cutting-control voltage regulating device. The PWM pulse hardware generation technol...

AI Technical Summary

Problems solved by technology

The electromagnetic device has the disadvantages of electromagnetic shifting, carbon brush flash shock, complex processing technology, large consumption of non-ferrous metal materials, and bulky products; the main disadvantage of the thyristor device is that it destroys the integrity of the output voltage waveform. , and generate a large number of harmonics, causing electromagnetic pollution

The following problems also exist in the newer technology chopping control voltage regulating device. The PWM pulse hardware generation technology used is relatively backward and outdated, and the pulse width control effect is obviously inferior to the PWM pulse software generation technology.

There is a phenomenon of timing overlap of control signals, which may easily cause a short circuit of the power supply

The response speed to the suppression of spike interference signals is low, and the buffer circuit consumes a lot of energy

The level of integration and modular structure of related control circuits is relatively low, the degree of intelligent processing of system control signals is not high, and the circuit structure is complex and electromagnetic compatibility is poor

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