High-frequency and high-voltage power supply controller for electrostatic dust collection and control method

Abstract

The invention discloses a high-frequency and high-voltage power supply controller for electrostatic dust collection and a control method. The high-frequency and high-voltage power supply controller for the electrostatic dust collection comprises a voltage conditioning circuit, a sliding mode controller, a fuzzy controller, a digital logic unit and a driving circuit, wherein voltage acquired by a voltage transformer of a high-frequency and high-voltage power supply main circuit is input into the voltage conditioning circuit, is conditioned and then is input into the sliding mode controller and the fuzzy controller; a sliding mode face parameter of the sliding mode controller is set and adjusted by the fuzzy controller; an output signal of the sliding mode controller passes through the digital logic unit to obtain a PWM signal of a driving switch; and the PWM signal drives an inverter circuit of the high-frequency and high-voltage power supply main circuit by the driving circuit. According to the high-frequency and high-voltage power supply controller for the electrostatic dust collection and the control method, fuzzy sliding mode control is applied to a high-frequency and high-voltage power supply for the electrostatic dust collection; and the sliding mode control has the characteristic of strong robustness on system parameter changes and outside disturbances, so that the system stability during reference voltage changes and load disturbances is improved.

Description

technical field [0001] The invention relates to a high-frequency and high-voltage power supply for electrostatic dust removal, in particular to a controller and a control method for the high-frequency and high-voltage power supply, and belongs to the technical field of environmental protection equipment. Background technique [0002] With the rapid development of domestic industry, environmental problems have followed. In recent years, air pollution has particularly hurt people's nerves. Days of haze weather has sounded the alarm for us. The formulation of new atmospheric emission standards has brought new challenges to the dust removal industry. requirements and opportunities. The more and more extensive application of high-frequency and high-voltage electrostatic precipitator power supplies in the dust removal industry also requires higher and higher performance requirements. [0003] At present, the control method of domestic high-voltage electrostatic precipitator is ma...

AI Technical Summary

Problems solved by technology

In actual use, it is found that because the power control system is a lagging system, and the working environment is complex, with characteristics such as nonlinearity, variability and complexity, it is difficult to obtain an accurate mathematical model

It makes the traditional PID controller face the problem that the control parameters are difficult to select

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