电工技术学报  2020, Vol. 35 Issue (4): 839-849    DOI: 10.19595/j.cnki.1000-6753.tces.181867
电力电子 |
电压源逆变器虚拟矢量模型预测共模电压抑制方法
郭磊磊1, 金楠1, 李琰琰1, 曹玲芝1, 代林旺2, 罗魁2
1. 郑州轻工业大学电气信息工程学院 郑州 450002;
2. 新能源与储能运行控制国家重点实验室(中国电力科学研究院有限公司) 北京 100192
Virtual Vector Based Model Predictive Common-Mode Voltage Reduction Method for Voltage Source Inverters
Guo Leilei1, Jin Nan1, Li Yanyan1, Cao Lingzhi1, Dai Linwang2, Luo Kui2
1. College of Electric and Information Engineering Zhengzhou University of Light Industry Zhengzhou 450002 China;
2. State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems China Electric Power Research Institute Beijing 100192 China
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摘要 针对两电平电压源逆变器常规单矢量模型预测共模电压抑制方法存在电流谐波较大的问题,提出一种基于虚拟矢量的逆变器模型预测共模电压抑制方法,以在实现共模电压抑制的同时,减小电流谐波。首先,给出了虚拟矢量法的实现原理,并分析了死区和控制延时对所述虚拟矢量法的影响。其次,为了消除因死区和控制延时而产生的共模电压尖峰,进一步对所述虚拟矢量模型预测共模电压抑制法进行了改进。同时,还详细分析了虚拟矢量作用下三相电流在单个控制周期内的变化规律,从而为电流扇区的准确划分提供了理论基础。仿真和实验结果表明,所提方法不仅能实现共模电压抑制,而且可以明显降低电流谐波。
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郭磊磊
金楠
李琰琰
曹玲芝
代林旺
罗魁
关键词 虚拟矢量电压源逆变器模型预测控制共模电压抑制死区    
Abstract:Considering the problem that the conventional single vector based model predictive common-mode voltage(CMV) reduction method has large current harmonics for 2-level voltage source inverters(VSIs), a virtual vector based model predictive CMV reduction method is proposed to achieve the CMV suppression as well as the current harmonics reduction. Firstly, the realization principle of the virtual vector approach is given, and the influence of the dead time and the control delay on the proposed virtual vector approach is analyzed. Secondly, in order to eliminate the CMV spikes caused by the dead time and the control delay, the proposed virtual vector-based model predictive CMV reduction method is further improved. Meanwhile, the variation rules of three-phase current in a single control period under the action of the virtual vectors are also analyzed in detail to provide a theoretical foundation for dividing the current sector more accurately. Simulation and experimental results show that the proposed method can not only achieve the CMV suppression, but also reduce the current harmonics significantly.
Key wordsVirtual vector    voltage source inverter    model predictive control    common-mode voltage reduction    dead time   
收稿日期: 2018-12-04      出版日期: 2020-02-28
PACS: TM464  
基金资助:国家自然科学基金项目(51607159,51707176)、新能源与储能运行控制国家重点实验室(中国电力科学研究院有限公司)开放基金和河南省高等学校重点科研项目(18A470020)资助
通讯作者: 金 楠 男,1982年生,副教授,硕士生导师,主要研究方向为新能源变换技术等。E-mail: jinnan@zzuli.edu.cn   
作者简介: 郭磊磊 男,1987年生,博士,讲师,硕士生导师,主要研究方向为并网逆变器模型预测优化控制等。E-mail: 2006guoleilei@163.com
引用本文:   
郭磊磊, 金楠, 李琰琰, 曹玲芝, 代林旺, 罗魁. 电压源逆变器虚拟矢量模型预测共模电压抑制方法[J]. 电工技术学报, 2020, 35(4): 839-849. Guo Leilei, Jin Nan, Li Yanyan, Cao Lingzhi, Dai Linwang, Luo Kui. Virtual Vector Based Model Predictive Common-Mode Voltage Reduction Method for Voltage Source Inverters. Transactions of China Electrotechnical Society, 2020, 35(4): 839-849.
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