UPS应用中δ调制PWM控制器与电压反馈的实现  

Realization of delta modulation PWM controller with voltage feedback for UPS application

作　　者：焦斌[1] 孟丽丽[2] 

机构地区：[1]上海电机技术高等专科学校,上海200240 [2]淄博职业学院化学工程系,山东淄博255013

出　　处：《山东理工大学学报（自然科学版）》2004年第5期60-64,共5页Journal of Shandong University of Technology:Natural Science Edition

摘　　要：为了改善UPS的负载电压品质,提高逆变器的开关频率,减小输出电压的谐波分量,提出了调制PWM控制器,其原理是利用负载变化时相位差来改善输出电压.仿真说明输出电压的稳定性得到了改善.To improve the quality of the load voltage of the UPS, the switching frequency of the converter should be increased and the harmonic content of the output spectrum should be minimized. The modulation has been introduced into the UPS application. The principle of modulation is to use the phase difference to improve the output voltage while the load condition is changed. The simulation result shows that the stability of the output voltage is improved.

关 键 词：PWM控制器 电压反馈 UPS 调制 输出电压 开关频率 负载电压 逆变器 谐波分量 相位差 

分 类 号：TN86[电子电信—信息与通信工程] TM921.52[电气工程—电力电子与电力传动]