声谐振组合频率调制电路的优化与设计  

Circuit design and optimization of combined frequency modulation for acoustic resonance suppression

作　　者：张德春[1] 郭颖娜[1] 程为彬[1] 田丰[1] 

机构地区：[1]西安石油大学电子程学院,陕西西安710065

出　　处：《电源技术》2013年第3期465-467,共3页Chinese Journal of Power Sources

基　　金：国家自然科学基金(61174191);陕西省工业攻关计划(2011k06-27);陕西省教育厅科研专项(09JK687)资助;西安石油大学研究生科研创新基金资助项目(2011cx100314)

摘　　要：针对高强度气体放电灯在特定频率和足够的能量时会产生声谐振现象,建立参数扰动频率调制电路模型,并对组合频率扰动调制进行分析,利用PWM集成芯片和全波整流输出脉动电压,优化设计参数,以减小各频率分量的振幅,降低激励能量;同时使得调制频率非线性变化,防止离子声波在固定频率点上产生驻波,从而达到抑制声谐振目的。应用Saber软件进行时域和频域仿真分析,验证设计电路模型的有效性和可行性。High intensity discharge lamp will bring out acoustic resonance phenomenon at a particular frequency with enough energy.Frequency modulation circuit model with parameter perturbation was established and perturbation modulation of mixed frequency was analyzed in this paper.Circuit parameters were optimized by PWM integrated chip and output ripple voltage of full-wave rectifier to reduce the amplitude of each frequency component and incentive energy.Nonlinear change of modulation frequency prevented ion sound waves from producing standing wave at the fixed frequency point,so as to suppress acoustic resonance.The effectiveness and feasibility of designing circuit model were validated by using simulation analysis both in time domain and frequency domain with Saber software.

关 键 词：高强度气体放电灯 频率调制 SABER 仿真 优化设计 

分 类 号：TM743[电气工程—电力系统及自动化]