【作者】 谢正；

【导师】 刘汉奎；

【作者基本信息】 哈尔滨工业大学 ， 电力电子与电力传动， 2006， 硕士

【摘要】 由于不可再生能源可预见性的短缺,节能已经成为一个全球话题,绿色照明正引起越来越多的关注。作为一种高效、长寿命的新型电光源高强度气体放电灯在绿色照明工程中扮演了重要角色。因此,与之配套的电子镇流器的开发研制已成为了研究热点。电子镇流器由于其节能、轻便等一系列优点将逐渐替代传统的电感式镇流器。使用有源功率因数校正技术的电子镇流器对于抑制电网电流谐波和提高功率因数是非常有效的,本文分析了临界导电模式Boost型功率因数校正电路的电路结构及其工作原理,给出了其电路参数的设计方法。声共振现象是高强度气体放电灯高频工作的特有现象,论文阐述了有关金卤灯声共振的情况与声共振现象的产生机理及几种解决声共振的方法,并采用在高频驱动中加入低频频率调制的方法来解决声共振。可调光电子镇流器采用单片机控制,实现了电子镇流器的点火、恒功率、调光和保护控制。本文设计了一种具有自动定时调光功能的路灯用高压钠灯电子镇流器,并给出了一个额定功率为400W的高压钠灯电子镇流器的实验结果。本文论述了手动调光的硬件和软件设计,包括辅助电源的设计,最后在此基础上成功研制出采用0～10V控制电压的可调光高压钠灯电子镇流器,并进行了相应的调光分析研究。更多还原

【Abstract】 Because of the shortage of non-renewable energy, energy saving has become a world-wide topic. Being part of it, green lighting projects are attracting more and more attention. As a high efficacy, long life time lighting source, High Intensity Discharge (HID) lamp plays an important role in it. Therefore the development of the drive circuit of the lamp, namely ballast has become an important research point. Because of excellence in energy saving, lighting weight, etc., electronic ballast will gradually take the place of traditional electromagnetic (EM) ballast.Active power factor correction (APFC) technology can restrain humorous waves of input current, and improve the power factor (PF) of electronic ballast efficiently. The dissertation introduces transition mode(TM) Boost PFC circuit and offers basis to design the parameters in the circuit suitably.The dissertation introduces the theory of acoustic resonance and the injection of low-frequency into high-frequency modulation can eliminate acoustic resonance in majority of metal halide (MH) lamps.The dissertation presents a digital controlled electronic ballast for high pressure sodium lamps. Its digital controller includes some functions for soft starting, lamp fault protection, power control for dimming, frequency modulation. The circuit offers the capability of dimming the lamp power from 100% to 50%.The experimental results are given by testing digital electronic ballast for 400W HPS lamps.The dissertation designs the hardware and software of hand controlled dimming, including designing a novel accessorial DC source for electronic ballast. In the end, a practical dimmable electronic ballast for 250W HPS lamps, is developed successfully on the base of above research.更多还原