调频式串联谐振试验电源数字控制器设计  

Design of digital controller for frequency-tuned series resonance power source

作　　者：黄新波[1] 刘斌[1] 张周熊[1] 乔卫中 姬林垚 

机构地区：[1]西安工程大学电子信息学院,陕西西安710048

出　　处：《电力自动化设备》2016年第7期138-142,155,共6页Electric Power Automation Equipment

基　　金：教育部"新世纪优秀人才支持计划"(NCET-11-1043);陕西省重点科技创新团队计划(2014KCT-16)~~

摘　　要：基于状态反馈的观点,引入极点配置算法,设计了基于负载电流前馈的滤波电感电流内环、滤波电容电压外环的双环控制器,同时为了避免电感电流的直接测量,设计了状态观测器对电感电流进行观测。仿真与实验结果表明所设计的控制器可以较好地保证调频式串联谐振试验电源输出电压波形的正弦化与稳定性,有利于在扫频时准确地锁定高压回路的谐振频率,同时可以保证交流耐压试验时为高压回路提供良好的正弦输入电压。The pole assignment algorithm is introduced based on the concept of state feedback and a dual-loop controller with the inner loop of filtering inductor current and the outer loop of filtering capacitor voltage is designed based on the load current feed-forward. A state observer is designed for observing the inductor current to avoid the direct measuring. Simulative and experimental results show that,the designed controller can ensure the sine-shape and stability of the output voltage of frequency-tuned series resonance power source quite well to accurately lock up the resonance frequency of HV loop during the frequency sweep and provide excellent sinusoidal input voltage for HV loop during AC voltage withstanding test.

关 键 词：串联谐振 装置电源 状态反馈 极点配置 交流耐压试验 

分 类 号：TM91[电气工程—电力电子与电力传动]