中国计量大学学报2017，Vol.28Issue(1)：51-56,6.DOI:10.3969/j.issn.2096-2835.2017.01.009
面向铁氧体裂纹检测的感应加热电源研制
Development of an induction heating power supply for detecting ferrite surface cracks
摘要
Abstract
Aiming at the problems of the non-uniform heating distribution and the resonanted frequency drifting of load in ferrite heating using the conventional induction heating power,a series resonant digital induction heating power with a full bridge inverter structure was proposed.Based on the characteristics of phase difference between voltage and current during the commutation of series resonant circuits,the resistive,inductive and capacitive states were simulated with PSPICE.The result show that the circuit operated reliably when the series resonant circuit ran in the weakly inductive state.Based on the principle of electromagnetic coupling,primary compensation and secondary compensation load matching transformers were analyzed;and the latter was applied to the power supply by matching the load equivalent resistance to realize maximized energy efficiency output.The Fuzzy-PI frequency tracking technology was applied to the power supply to realize real-time frequency tracking.Finally,the digital induction heating power was successfully used for the ferrite crack detection experiment.关键词
铁氧体/裂纹检测/串联谐振/感应加热电源/热成像Key words
ferrite/crack detection/series resonance/induction heating power supply/thermal imaging分类
信息技术与安全科学引用本文复制引用
何昕,唐波,王晓娜,叶树亮..面向铁氧体裂纹检测的感应加热电源研制[J].中国计量大学学报,2017,28(1):51-56,6.基金项目
国家重大科学仪器设备开发专项(No.2013YQ470767). （No.2013YQ470767）
