Study On the Optimal DC Voltage Control For Power Electronic Transformer

被引:0
|
作者
Zhou, Ke [1 ]
Chu, Hongbo [1 ]
Lan, Zheng [2 ]
Hu, Yangkai [2 ]
Sun, Zhiyuan [1 ]
Liu, Mosi [1 ]
机构
[1] Guangxi Grid Co Ltd, Elect Power Res Inst, Nanning 530023, Guangxi, Peoples R China
[2] Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Hunan, Peoples R China
关键词
DC-link voltage; capacitor voltage control; power loss; distorted current of power supply; adaptive regulator; CONVERTER; STRATEGY;
D O I
暂无
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Power electronic transformer (PET), the key equipment for future smart grid, is vital for the whole power grid to be in normal operation. The mathematical relationship between the DC-link voltage and the system parameters for PET were analyzed in this paper. Based on the analysis, the optimal DC-link voltage for PET is obtained by mathematical deduction. Then, a novel adaptive voltage regulation method is proposed, in which the DC-link voltage reference value will be maintained in the required optimal voltage level, and it also can be adaptively changed according to different grid voltage levels and load levels. Therefore, PET can avoid the grid voltage and load level fluctuation impact on the input current distortion and output voltage stability. Finally, representative simulation results in PSCAD/EMTDC verify the validity and effectiveness of the optimal DC-link voltage design and the proposed adaptive voltage regulation method.
引用
收藏
页码:2270 / 2275
页数:6
相关论文
共 50 条
  • [1] The Study of Power Electronic Transformer on Power Flow Control and Voltage Regulation in DC Micro-grid
    Zhou, Ke
    Jin, Qingren
    Lan, Zheng
    Tu, Chunming
    Guo, Ming
    Liu, Guangshi
    [J]. 2015 5TH INTERNATIONAL CONFERENCE ON ELECTRIC UTILITY DEREGULATION AND RESTRUCTURING AND POWER TECHNOLOGIES (DRPT 2015), 2015, : 2166 - 2172
  • [2] Voltage Balance Control Based on Dual Active Bridge DC/DC Converters in a Power Electronic Traction Transformer
    Liu, Jianqiang
    Yang, Jingxi
    Zhang, Jiepin
    Nan, Zhao
    Zheng, Qionglin
    [J]. IEEE TRANSACTIONS ON POWER ELECTRONICS, 2018, 33 (02) : 1696 - 1714
  • [3] Optimal Power Flow for Hybrid AC/DC Grid With Power Electronic Transformer
    Geng, Qi
    Hu, Yan
    He, Jianzong
    Zhou, Yongyan
    Zhao, Wei
    [J]. Dianwang Jishu/Power System Technology, 2019, 43 (09): : 3288 - 3296
  • [4] DC Ripple Voltage Suppression Strategy for Cascaded Power Electronic Transformer
    Tu, Chunming
    Xiao, Fan
    Yuan, Jingbin
    Zhou, Da
    [J]. Diangong Jishu Xuebao/Transactions of China Electrotechnical Society, 2019, 34 (14): : 2990 - 3003
  • [5] A Power Electronic Traction Transformer for a Medium Voltage DC Electric Railway System
    Ferencz, Izsak
    Petreus, Dorin
    Tricoli, Pietro
    [J]. 2021 44TH INTERNATIONAL SPRING SEMINAR ON ELECTRONICS TECHNOLOGY (ISSE), 2021,
  • [6] Energy Balance Control for Improving Transient Performance of DC Bus Voltage in Power Electronic Transformer for the Voltage-Sensitive Loads
    Feng, Gaohui
    Bu, Pengsheng
    Yuan, Liqiang
    [J]. ENERGIES, 2022, 15 (09)
  • [7] Coordinated Control Method for Medium-voltage DC Interconnected Distribution Network Based on Power Electronic Transformer
    Lin, Lin
    Pei, Zhongchen
    Cai, Guowei
    Liu, Chuang
    Wang, Jingyue
    Kong, Dehao
    [J]. Dianli Xitong Zidonghua/Automation of Electric Power Systems, 2021, 45 (08): : 51 - 59
  • [8] Voltage and Power Balance Control of Cascaded Power Electronic Transformer With Minimum Power Backflow
    Chen, Shujian
    Pan, Hongbin
    He, Wenfeng
    Li, Zhen
    [J]. 2018 CHINESE AUTOMATION CONGRESS (CAC), 2018, : 2295 - 2300
  • [9] Individual DC Voltage Balance Control for Cascaded H-Bridge Electronic Power Transformer With Separated DC-Link Topology
    Tian, Jie
    Hu, Dewang
    Zhou, Chunxiao
    Yang, Yun
    Wu, Weihan
    Mao, Chengxiong
    Wang, Dan
    [J]. IEEE ACCESS, 2019, 7 : 38558 - 38567
  • [10] A Power Electronic Traction Transformer Model for a New Medium Voltage DC Electric Railway
    Ferencz, Izsak
    Petreus, Dorin
    [J]. ADVANCES IN ELECTRICAL AND COMPUTER ENGINEERING, 2021, 21 (03) : 99 - 108