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The Research of the Control System of High Frequency Power Supply for Induction Heating Based on DSP

Author: ZhangSuRong
Tutor: LiMinYuan
School: Xi'an University of Technology
Course: Detection Technology and Automation
Keywords: High frequency induction heating power supply Series resonant Dead zone Digital Signal Processing Power Control
CLC: TM924
Type: Master's thesis
Year: 2004
Downloads: 420
Quote: 26
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Abstract


Series resonant induction heating power supply during the operation , according to the width of the the inverter operating performance dead existence of a close contact with the characteristics of the inverter control part to be able to achieve the regulatory function of load frequency tracking features and online dead . Meanwhile, the control circuit must be the main circuit section of the rectifier circuit , the inverter circuit , and other systems for power control, and maintain the various parameters of the system does not deviate from its set value so that in a variety of disturbance . High frequency series induction heating power of the object of study, brief introduction to the basics of induction heating , induction heating technology development process , also made ??a brief introduction of induction heating control . By analyzing the resonant tank circuit topology induction heating power supply , select the series more suitable for high-frequency induction heating power inverter . Induction heating power the various power adjustment and analysis , In contrast several way power adjustment on the basis , drawn in the rectifier side power adjustment favor high frequency induction heating power supply frequency and power improve , choose a non-controlled rectifier plus chopper regulator as an object of study . In the implementation of the inverter control circuit , DSP-based frequency follower control system with optimal dead . Phase-locked loop frequency tracking as the core of the device , according to the best theory of the dead , with the DSP line adjustment of the dead zone . Control core hardware design TMS320LF2407A control platform , including a sampling circuit protection circuit , phase compensation circuit , driving the peripheral circuits , on this basis, the preparation of the program software . Finally, analysis of the high - frequency induction heating power control strategy of the closed-loop control , and intelligent control of the introduction of induction heating power supply power regulation . This article also gives software and hardware implementation and experimental results .

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CLC: > Industrial Technology > Electrotechnical > Electrification,electrical energy application > Electric heating
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