整流桥并联馈电系统电流反馈的算法  

Current feedback algorithm in parallel bridge rectifier feed system

作　　者：郝新[1] 徐文立[1] 张曾科[1] 

机构地区：[1]清华大学自动化系,北京100084

出　　处：《清华大学学报（自然科学版）》2001年第4期174-177,共4页Journal of Tsinghua University(Science and Technology)

摘　　要：两组整流桥并联组成的大电流馈电系统在工业生产中有着广泛的应用。但整流桥并联馈电系统中存在着由于平衡电抗器和共用负载带来的电流反馈的耦合现象 ,对系统性能产生了许多不利的影响。该文在实践的基础上提出一种改进算法 ,可以有效地消除原算法中存在的电流耦合问题。新算法在没有改动硬件的条件下 ,仅通过简单的修改调节器软件的算法 ,就可以使系统在鲁棒性和快速性两方面都有较大的提高。该算法已应用于以 Intel80 C196 KC单片机为核心的十二相整流电路控制器 ,并取得了满意的结果。Industrial production frequently uses high current DC power, which is often composed of parallel three phase bridge rectifiers. However, a coupling problem is caused by the need to balance the current transformer and the common load in the parallel rectifier feed system. A simple method is presented here to effectively eliminate the coupling problem existing in the original design. Without changing hardware or adding more system load, the new method achieves both better stability and shorter transition time by simply altering the software of the adjusters. The algorithm was applied in a controller with an Intel 80C196KC microchip for a high current twelve phase rectifier with satisfactory results.

关 键 词：整流电路 电流反馈 解耦 整流桥联馈电系统 电流耦合 平衡电抗器 共用负载 

分 类 号：TN344[电子电信—物理电子学] TP13[自动化与计算机技术—控制理论与控制工程]