Power Control of Induction Heating Inverse Power Supply

摘要：

This paper has proposed an improved pulse frequency modulation (PFM) method aiming at the problem of low modulation precision, and insensitive reaction as for the power control of induction heating power supply. This method has combined the PFM control and the digital constant angle phase-lock control. In this paper, digital phase-lock control method is designed to constrict the phase angle and the analysis and deduction of the instable condition is conducted based on the PIC18F4520 and CD4046. The comparative experiments based on the designed model machine are conducted, the results of which has shown that the designed model machine of improved PFM power control method has achieved to improve the control precision and reliability of series resonance induction heating inverse power working at weak inductance states.

关键词： PFM DPLL Fixed-angle control Dual-Closed loop

作者: You bo Xu peng Wang jie Zhang guijuan

作者单位: College of Automation and Harbin University of Science and Technology Harbin, Heilongjiang Province, Architecture Engineering College Heilongjiang College of Construction Harbin, Heilongjiang Province,

会议类型: 国际会议

会议名称: 2012 International Conference on Measurement,Information and Control(2012测量、信息与控制国际会议 ICMIC2012)

会议地点: 哈尔滨

会议语种:英文

页码: 809-812

在线出版日期: 2012-05-18（万方平台首次上网日期，不代表论文的发表时间）