HID电子镇流的谐波抑制技术研究-检测技术与自动化置专业毕业论文.docx

英文摘要Subject： 英文摘要 Subject： Study on Harmonic Suppress Techniques of Electric Ballast for High Intensity Discharge Lamp Speciality： Detecting Technology and Automation Equipment Name： Fu Zhongwei (sil naturesignature)J Instructor： Cheng Weibin (signature) As a new lighting source with hi曲efficiency and long life，HID Lamp acts as an important role in lighting domain．Along with generalizing of the green lighting，electronic ballast based on high frequency conversion will gradually substitute for the traditional inductance type ballast because of its excellence in energy saving，light weight，etc．Studying on electronic ballast has become an important research point．But harmonics will be produced when working in high frequency,SO it is difficult to design electronic ballasts． In this paper,the design requests and structure composing of HID lamp electronic ballast are researched．Harmonious produced by input stage and output stage of HID lamp electric ballast are analyzed，as well as the suppression technology．The driving circuit and the assistant circuit are designed for HID lamp． The Boost converter math model is built，chaos phenomenon and parameter sensitivities are analyzed，and a chaotic approach of resonant parametric perturbation is researched． The principles of enhancing power factor and reducing harmonic of APFC converter are analyzed，one kind of Boost type APFC controller based on UC3 842 is designed，simulation and experiment are carried on for the designed electric circuit． According to the condition which may give birth to the acoustic resonance，the principles of spread spectrum、^，ith resonant parametric perturbation are analyzed， one kind of non·feedback electric circuit based on the SG3 525 is designed for suppression of acoustic resonance，simulation and experiment are carried on，too． It indicated that this APFC controller wim resonant parametric perturbation Can enhance the power factor and reduce the input stage harmonics，the spread spectrum electric circuit