Fault-tolerant Operation Technology for Three-level Cell Power Electronic Transformer

ZHU Lin; LI Chushan; LU Yiping; YANG Huan; LI Wuhua

doi:10.7500/AEPS20221031021

您当前的位置：

首页 >

文章列表页 >

Fault-tolerant Operation Technology for Three-level Cell Power Electronic Transformer

Application Research | 更新时间：2025-06-16

- Fault-tolerant Operation Technology for Three-level Cell Power Electronic Transformer
- Automation of Electric Power Systems Vol. 47, Issue 11, Pages: 144-154(2023)
- 作者机构：
  
  1.浙江大学电气工程学院,浙江省杭州市 310027
  2.浙江大学伊利诺伊大学厄巴纳香槟校区联合学院,浙江省海宁市 314400
- 作者简介：
- 基金信息：
  
  National Key R&D Program of China(2022YFE0101900);Joint Key Program for High-speed Train of National Natural Science Foundation of China(U1834205);Key Program of Zhejiang Provincial Natural Science Foundation of China(LZ22E070002)
- DOI：10.7500/AEPS20221031021
  CLC：
- Received：31 October 2022，
  
  Revised：2023-01-12，
  
  Published：10 June 2023
- 稿件说明：
移动端阅览
祝琳,李楚杉,卢倚平等.三电平单元电力电子变压器容错运行技术[J].电力系统自动化,2023,47(11):144-154.

ZHU Lin,LI Chushan,LU Yiping,et al.Fault-tolerant Operation Technology for Three-level Cell Power Electronic Transformer[J].Automation of Electric Power Systems,2023,47(11):144-154.
祝琳,李楚杉,卢倚平等.三电平单元电力电子变压器容错运行技术[J].电力系统自动化,2023,47(11):144-154. DOI： 10.7500/AEPS20221031021.

ZHU Lin,LI Chushan,LU Yiping,et al.Fault-tolerant Operation Technology for Three-level Cell Power Electronic Transformer[J].Automation of Electric Power Systems,2023,47(11):144-154. DOI： 10.7500/AEPS20221031021.

摘要

基于三电平单元的电力电子变压器具有功率模块少、功率密度高等优点，在数据中心不间断电源、铁路配电系统、超级充电站等场景中应用前景广阔。然而，电力电子变压器中开关器件多，器件故障引发的故障模块切除动作将导致系统容量损失，易引发系统失稳、故障越界等问题。针对该问题，文中提出了一种基于故障模块、故障相与非故障相协同的三电平容错运行技术。首先，采用开关组合列举法分析了不同故障类型下三电平单元H桥的共性故障结果，并基于部分器件旁路实现了故障模块重构和容错运行。其次，提出了相内协同控制策略，实现了故障模块电容电压的稳定与均压控制，并通过相间协同控制实现线电压平衡，共同保障电路正常运行。最后，针对不同故障结果提出具体的容错控制方法，并通过仿真验证了所提容错方法的有效性。仿真结果证明了容错控制下电力电子变压器能稳定运行。

Abstract

The power electronic transformer (PET) based on the three-level cell has the advantages of few power modules and high power density

which has broad application prospects in the scenarios of uninterruptible power supplies in data centers

railway power distribution systems and super-charging stations. However

there are many switching devices in PET

and the faulty module removal action triggered by the device fault will lead to the loss of system capacity

which can easily lead to system instability

fault expansion and other problems. To address this problem

this paper proposes a fault-tolerant operation technology based on cooperation among faulty modules

faulty phase and non-fault phase. First

the common fault results of three-level cell H-bridge with different fault types are analyzed by using the switch combination enumeration method

and faulty module reconfiguration and fault-tolerant operation are realized based on partial device bypass. Secondly

the in-phase coordinated control strategy is proposed to realize the capacitor voltage stability and equalization of the faulty module

and the line voltage balance is achieved through the inter-phase coordinated control

which ensures the normal operation of the circuit. Finally

specific fault-tolerant control methods are proposed for different fault results and the effectiveness of the proposed fault-tolerant methods is verified by simulation. The simulation results prove that the PET can operate stably with fault-tolerant control.

关键词

Keywords

references

宗升，何湘宁，吴建德，等 . 基于电力电子变换的电能路由器研究现状与发展［J］. 中国电机工程学报， 2015 ， 35 （ 18 ）： 4559 - 4570 .

ZONG Sheng ， HE Xiangning ， WU Jiande ， et al . Overview of power electronics based electrical energy router ［J］. Proceedings of the CSEE ， 2015 ， 35 （ 18 ）： 4559 - 4570 .

王优，郑泽东，李永东 . 中高压电力电子变压器拓扑与控制应用综述［J］. 电工电能新技术， 2017 ， 36 （ 5 ）： 1 - 10 .

WANG You ， ZHENG Zedong ， LI Yongdong . Review of topology and control application of medium and high voltage power electronic transformer ［J］. Advanced Technology of Electrical Engineering and Energy ， 2017 ， 36 （ 5 ）： 1 - 10 .

郑聪慧，徐婉莹，王晓婷，等 . 多有源桥型电力电子变压器简化电磁暂态等效模型［J］. 电力系统自动化， 2022 ， 46 （ 19 ）： 113 - 122 .

ZHENG Conghui ， XU Wanying ， WANG Xiaoting ， et al . Simplified electromagnetic transient equivalent model of multi-active-bridge-based power electronic transformer ［J］. Automation of Electric Power Systems ， 2022 ， 46 （ 19 ）： 113 - 122 .

袁立强，高深，姬世奇，等 . 基于占空比同步的电力电子变压器低压交流端口模式切换控制［J］. 电工技术学报， 2022 ， 37 （ 3 ）： 729 - 738 .

YUAN Liqiang ， GAO Shen ， JI Shiqi ， et al . Mode transition for low voltage AC port of power electronic transformers based on duty cycle synchronization ［J］. Transactions of China Electrotechnical Society ， 2022 ， 37 （ 3 ）： 729 - 738 .

李骏驰，吴俊勇，熊飞，等 . 多端口电力电子变压器的安全稳定运行区域分析与控制［J］. 电力系统自动化， 2022 ， 46 （ 20 ）： 129 - 138 .

LI Junchi ， WU Junyong ， XIONG Fei ， et al . Analysis and control of safe and stable operation region for multi-port power electronic transformer ［J］. Automation of Electric Power Systems ， 2022 ， 46 （ 20 ）： 129 - 138 .

高范强，李子欣，李耀华，等 . 面向交直流混合配电应用的10 kV-3 MV·A四端口电力电子变压器［J］. 电工技术学报， 2021 ， 36 （ 16 ）： 3331 - 3341 .

GAO Fanqiang ， LI Zixin ， LI Yaohua ， et al . 10 kV-3 MV·A four-port power electronic transformer for AC-DC hybrid power distribution applications ［J］. Transactions of China Electrotechnical Society ， 2021 ， 36 （ 16 ）： 3331 - 3341 .

张航，李耀华，高范强，等 . 级联H桥型电力电子变压器隔离级高频电流波动抑制策略［J］. 电力系统自动化， 2020 ， 44 （ 7 ）： 130 - 138 .

ZHANG Hang ， LI Yaohua ， GAO Fanqiang ， et al . High-frequency current fluctuation suppression strategy for isolation stage of cascaded H-bridge based power electronic transformer ［J］. Automation of Electric Power Systems ， 2020 ， 44 （ 7 ）： 130 - 138 .

HUBER J E ， KOLAR J W . Common-mode currents in multi-cell solid-state transformers ［C］// 2014 International Power Electronics Conference （IPEC-Hiroshima 2014 - ECCE ASIA）， May 18-21 ， 2014 ， Hiroshima， Japan ： 766 - 773 .

陆城，胡文斐，张伟强 . 用于快速充电站的高频高效模块化固态变压器［J］. 电源学报， 2021 ， 19 （ 6 ）： 74 - 82 .

LU Cheng ， HU Wenfei ， ZHANG Weiqiang . High-frequency high-efficiency modular solid state transformer for quick charging stations ［J］. Journal of Power Supply ， 2021 ， 19 （ 6 ）： 74 - 82 .

SHARMA R ， DAS A . Postfault operation of cascaded H-bridge converter for equal power handling by the healthy cells ［J］. IEEE Transactions on Industrial Electronics ， 2020 ， 67 （ 11 ）： 9174 - 9183 .

桑子夏，郑旭，方仍存，等 . 基于综合能源系统的固态变压器中开关器件故障特性分析与诊断［J］. 电工技术学报， 2021 ， 36 （增刊1 ）： 231 - 240 .

SANG Zixia ， ZHENG Xu ， FANG Rengcun ， et al . Fault characteristics and diagnosis strategy analysis of power switch failures on solid state transformer in integrated energy system ［J］. Transactions of China Electrotechnical Society ， 2021 ， 36 （ Supplement 1 ）： 231 - 240 .

OUNI S ， NOROOZI N ， SHAHBAZI M ， et al . A new fault tolerant scheme for cascaded H-Bridge multilevel converter ［C］// 2013 3rd International Conference on Electric Power and Energy Conversion Systems ， October 2-4 ， 2013 ， Istanbul， Turkey ： 1 - 5 .

MORADI E ， IMAN-EINI H ， SHEIKHAEI S . A simple hardware-based fault-tolerant method for cascaded H-bridge converters ［J］. IEEE Transactions on Industrial Electronics ， 2022 ， 69 （ 10 ）： 9711 - 9720 .

ALEENEJAD M ， MAHMOUDI H ， AHMADI R . Unbalanced space vector modulation with fundamental phase shift compensation for faulty multilevel converters ［J］. IEEE Transactions on Power Electronics ， 2016 ， 31 （ 10 ）： 7224 - 7233 .

NEYSHABOURI Y ， MONFARED K K ， IMAN-EINI H ， et al . Symmetric cascaded H-bridge multilevel inverter with enhanced multi-phase fault tolerant capability ［J］. IEEE Transactions on Industrial Electronics ， 2022 ， 69 （ 9 ）： 8739 - 8750 .

NEYSHABOURI Y ， IMAN-EINI H ， CHAUDHARY S K ， et al . Improved post-fault operation strategy for a cascaded H-bridge based STATCOM ［J］. IET Power Electronics ， 2020 ， 13 （ 12 ）： 2413 - 2423 .

OUNI S ， NARIMANI M ， CHENG Z Y ， et al . A new postfault control method for CHB inverter to increase maximum output voltage ［J］. IEEE Transactions on Industry Applications ， 2020 ， 56 （ 5 ）： 5499 - 5510 .

HAN P C ， HE X Q ， REN H J ， et al . Fault diagnosis and system reconfiguration strategy of a single-phase three-level neutral-point-clamped cascaded inverter ［J］. IEEE Transactions on Industry Applications ， 2019 ， 55 （ 4 ）： 3863 - 3876 .

WAN Y P ， HAN P C ， HE X Q . Research on fault diagnosis and reconfiguration strategy of single-phase three-level cascaded inverter ［C］// 2021 IEEE 16th Conference on Industrial Electronics and Applications （ICIEA）， August 1-4 ， 2021 ， Chengdu， China ： 849 - 854 .

WANG Y ， HE X Q ， HAN P C ， et al . Fault diagnosis and system reconfiguration strategy of single-phase cascaded inverter ［C］// 2017 IEEE Transportation Electrification Conference and Expo， Asia-Pacific （ITEC Asia-Pacific）， August 7-10 ， 2017 ， Harbin， China ： 1 - 6 .

LIU J Q ， ZHAO N . Improved fault-tolerant method and control strategy based on reverse charging for the power electronic traction transformer ［J］. IEEE Transactions on Industrial Electronics ， 2018 ， 65 （ 3 ）： 2672 - 2682 .

ZHAO N ， ZHENG Z D ， LI Y D . Fault-tolerant method based on reconstructed modulation for H-bridge converter in power electronic traction transformer ［C］// 2021 IEEE Transportation Electrification Conference & Expo （ITEC）， June 21-25 ， 2021 ， Chicago， USA ： 1 - 4 .

LEZANA P ， POU J ， MEYNARD T A ， et al . Survey on fault operation on multilevel inverters ［J］. IEEE Transactions on Industrial Electronics ， 2010 ， 57 （ 7 ）： 2207 - 2218 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

大规模水电直流外送柔直同频控制与常直FLC协同控制策略

Electromagnetic Transient Real-time Low-consumption Equivalent Model of Dual Active Bridge Based Power Electronic Transformer

Active Fault-tolerant Control Technology of Hybrid Advanced Co-phase Traction Power Supply Device Based on Module Cooperation

Related Author

SHU Hongchun

SHAO Zongxue

ZHAO Wei

HE Tingyi

SHU Hongchun

SHAO Zongxue

ZHAO Wei

HE Tingyi

Related Institution

Collaborative Innovation Center for Fault Detection and Protection Control of Smart Grid (Co-built by Province and Ministry)(Kunming University of Science and Technology)

Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology

Faculty of Electric Power Engineering, Kunming University of Science and Technology

Department of Electrical Engineering and Automation, Harbin Institute of Technology

⁰