Dissertation > Excellent graduate degree dissertation topics show

Research on Intermediate Frequency Induction Heating System Used in the Injection Molding Machine

Author: QiaoPanKe
Tutor: BiShuE
School: South China University of Technology
Course: Theory and New
Keywords: Induction heating Phase-shift control Series resonant Lock Phase loop
CLC: TQ320.52
Type: Master's thesis
Year: 2011
Downloads: 132
Quote: 0
Read: Download Dissertation

Abstract


With the rapid development of induction heating theory and power electronics technology, the technology of induction heating is used in industry field widely. Because the technology is high efficiency, fast heating, easy to control and easy to implement intelligent, automated, etc, in the field of plastics processing industry as one of China’s pillar industry, the traditional heating methods in industry have been generally modified for the induction heating method.Analyzing and comparing the series resonant inverter structure and the parallel resonant inverter structure, the induction heating system is suitable for work in the induction quasi-resonant state with series resonant inverter structure. In this paper ,a couple of normally and newly used power modulation applied in induction heating are analyzed and compared with each other. This paper introduces the overall design of the injection molding machine induction heating system. The phase-shift power modulation is very widely, and its power factor is high, meanwhile its dynamic response is good. The power system is controlled by the MCU. The lock phase loop frequency MM74HC4046 and the phase-shift integrated chip UCC3895 are the core of the power system. Simultaneously, the paper describes the Protection circuit, keyboard and display circuit, isolation driver circuit, and auxiliary power circuit. Furthermore the paper focuses on analysis the operational principle of the lock Phase loop frequency tracking module, designed the digital control of independent excitation to self-excited and the loss of lock during the operation. In the control system software design, this paper describes the programming ideas. The MCU can Real-time control the power system by the excellent program. And the paper focuses on analysis the PID control module which can precisely control the temperature of the load workpiece.According to the system main circuit design, eventually develops a prototype of 35kW/20kHz phase-shift induction heating power system for injection molding machine. After Continuously Debug and modify, the power achieves the requirements of design. During tests the prototype and study the experimental results to verify feasibility, reliability and stability of the system.

Related Dissertations

  1. Exploration and Simulation on Semi-solid Billet by Induction Heating in Temperature Field,TG249.9
  2. DSP-based research IGBT induction heating power supply,TM924.5
  3. Capacitors ( series resonant ) frequency power supply AC voltage test systems research,TM464
  4. Injection molding machine induction heating system and its implementation,TM924
  5. Study of HA Coating Formation on Heated Temperature-controlled Substrate,R318.08
  6. Research of Technology of Green Switch Power Based on UC3875,TM46
  7. Research of A Practical Nanosecond High-voltage Pulse Power Source,TM46
  8. The Study of Knotted Reactor Preconcentration On-line Heating Acidity Eluent Coupled with Atomic Spectrometry,O657.31
  9. Research on High Frequency Induction Heating Power Supply Based on 3-order Resonant Converter,TM924
  10. Electromagnetic development and application of heat-setting machine,TS04
  11. Research on Induction Heating Power Supply of Time-sharing and Power-synthesis Based on IGBT,TM924
  12. Numerical Simulation of Electromagnetic and Thermal Fields in the Mains Frequency Induction Furnace for Melting Zinc,TM924.5
  13. Research on High Performance and High Frequency Induction Heating Power Supply,TM924
  14. Study on High Frequency Soft-Switching Power Supply,TM46
  15. Study on Numerical Simulation in High-Frequency Induction Welding of Free Penetration Depositing on Steel Base,TG401
  16. The Study of Intermediate Frequency Power Supply Control Circuit Base on FPGA,TN86
  17. Research on the Multi-level AC/AC Converter with High-frequency Link,TM46
  18. The Design and Development of Phase-shifting Controlled PWM Full-bridge Soft-switch DC/DC Converter,TM46
  19. Heavy oil recovery Dynamic temperature compensation Self-Optimizing Control System Research and Design,TP273.1
  20. Phase-shifted full-bridge adjustable pressure plate Research and Design,TM46

CLC: > Industrial Technology > Chemical Industry > Synthetic resins and plastics industry > General issues > Machinery and equipment > Products processing molding equipment
© 2012 www.DissertationTopic.Net  Mobile