摘要
针对超高压气体绝缘封闭式组合电器型(GIS)电流互感器校验系统需要在宽范围输出保持较高精度的问题,采用了一种电力电子电源与电工电源串联的组合电源结构,其中电力电子电源采用单相全桥逆变器结构,与工频电源一起完成粗调、微调功能。为了使组合电源保持串联同步运行,提出了一种频率自适应比例谐振(PR)控制器。实验结果表明:采用频率自适应PR控制器可以使组合电源输出电压稳定,无低频波动,宽输出范围内均保持THD<3%。
In order to maintain high accuracy in a wide range of output for ultra-high voltage gas insulated switchgear(GIS) current transformer calibration system,a series combined structure of electronic power source and electrical source was used.The electronic power source adopted full bridge single-phase structure,starting when the output voltage of combined power source is high.In order to make the electronic power source and electrical power maintain synchronous operation,afrequency adaptive proportional resonant(PR)controller was used.The experimental results show that with the help of the frequency adaptive PR controller,the combined power has a stable output voltage with no low-frequency fluctuations,and the THD<3% in a wide rage.
作者
翟少磊
余恒洁
孙军
曹敏
林聪
王鹿军
ZHAI Shaolei;YU Hengjie;SUN Jun;CAO Min;LIN Cong;WANG Lujun(Electric Power Research Institute,Yunnan Electric Power Grid Co.,Ltd.,Kunmin 650217,Yunnan,China;Yunnan Power Grid Co.,Ltd.,Kunmin 650217,Yunnan,China;Wuhan Pandian Technology Co.,Ltd.,Wuhan 430058,Hubei,China;Solar Energy Efficient Use of Hubei Cooperative Innovation Center,Hubei University of Technology,Wuhan 430068,Hubei,China)
出处
《电气传动》
北大核心
2019年第7期64-68,共5页
Electric Drive
基金
国家自然科学基金青年项目(51607060)
关键词
电流互感器
校验系统
频率自适应
比例谐振控制器
current transformer
calibration system
frequency adaptive
proportional resonant(PR)controller
