A series tuned high power IPT stage lighting controller
A series tuned high power IPT stage lighting controller
复制标题
DOI：
10.1109/ecce.2011.6064151
复制
发表时间：
2011-11
期刊：
影响因子：
--
通讯作者：
Jason E. James;A. Chu;D. Robertson;A. Sabitov;G. Covic
中科院分区：
文献类型：
--
作者：
Jason E. James;A. Chu;D. Robertson;A. Sabitov;G. Covic
传统的舞台照明系统在材料/安装方面固有地承受着高昂成本，并且在市电频率下运行时可能会受到可闻噪声的影响。一种用于舞台照明的新型电路被引入以缓解这些问题；它包括一个串联调谐的感应电能传输（IPT）拾取器以及一种新的交流控制拓扑结构。这种拓扑结构基于先前的工作，通过改善负载和拾取器两端的波形以及降低开关额定值来实现。本文对该电路进行了分析、模拟，并对一个实际运行的系统进行了测量和介绍，包括设计中开关与无功元件之间的关系。一个1.2千瓦、240伏的飞利浦百老汇灯泡由该控制器成功供电。负载两端的波形是正弦波，这对于给定的均方根电压或电流水平降低了峰值，减少了噪声并简化了设计。通过在系统上实施闭环控制，输出电压被调节到1%的精度。
Traditional stage lighting systems inherently suffer significant cost in materials/installation and can be affected by audible noise when operating at mains frequency. A new circuit for stage lighting is introduced to mitigate these issues; it comprises a series tuned IPT pickup with a new AC control topology. This topology builds on previous work by improving the waveform across the load & pickup and by lowering the switch ratings. The circuit is analyzed, simulated and a working system is measured and presented herein, including the relationship between the switch and the reactive elements for the design. A 1.2 kW 240V Philips Broadway lamp is successfully powered by this controller. The waveforms across the load are sinusoidal which lower the peak values for a given RMS voltage or current level, reducing noise and simplifying the design. The output voltage is regulated to 1% by implementing closed loop control on the system.