A novel low voltage ride through strategyfor cascaded power electronic transformer

Jiexiang Han; Xiangping Kong; Peng Li; Zhe Zhang; Xianggen Yin

doi:10.1186/s41601-019-0137-1

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

A novel low voltage ride through strategyfor cascaded power electronic transformer

Original Research | 更新时间：2026-09-30

- A novel low voltage ride through strategyfor cascaded power electronic transformer
- Protection and Control of Modern Power Systems Vol. 4, Issue 3, Pages: 1-12(2019)
- 作者机构：
  
  1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology,Wuhan,China
  2. State Grid Jiangsu Electric Power Co. Ltd., Research Institute,Jiangsu,Nanjing,China
- 作者简介：
- 基金信息：
- DOI：10.1186/s41601-019-0137-1
  CLC：
- Published：01 July 2019
- 稿件说明：
移动端阅览
Jiexiang Han, Xiangping Kong, Peng Li, et al. A novel low voltage ride through strategyfor cascaded power electronic transformer[J]. Protection and Control of Modern Power Systems, 2019, 4(3): 1-12.
DOI：

Jiexiang Han, Xiangping Kong, Peng Li, et al. A novel low voltage ride through strategyfor cascaded power electronic transformer[J]. Protection and Control of Modern Power Systems, 2019, 4(3): 1-12. DOI： 10.1186/s41601-019-0137-1.

摘要

In view of the operating characteristics for voltage sags of AC side of the power electronic transformer(PET)

a low-voltage ride through(LVRT) strategy adapted to bidirectional power exchange of PET is proposed for the purposes of maintaining the system stability

assisting the system voltage recovery and protecting PET safety. During the asymmetric voltage sag

the negative sequence current of PET is eliminated to ensure the symmetry of the injected current. According to the degree of positive sequence voltage sag

the reactive current injection is provided to assist in voltage recovery. According to the PET active power condition before the voltage sag

the level and direction of which are maintained as far as possible without exceeding the limit

for which the disturbance to the AC and DC grids is reduced. Finally

the effectiveness of the proposed LVRT strategy is verified by simulation model.

Abstract

In view of the operating characteristics for voltage sags of AC side of the power electronic transformer(PET)

a lowvoltage ride through(LVRT) strategy adapted to bidirectional power exchange of PET is proposed for the purposes of maintaining the system stability

assisting the system voltage recovery and protecting PET safety. During the asymmetric voltage sag

the negative sequence current of PET is eliminated to ensure the symmetry of the injected current. According to the degree of positive sequence voltage sag

the reactive current injection is provided to assist in voltage recovery. According to the PET active power condition before the voltage sag

the level and direction of which are maintained as far as possible without exceeding the limit

for which the disturbance to the AC and DC grids is reduced. Finally

the effectiveness of the proposed LVRT strategy is verified by simulation model.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Multi-Timescale Modeling and Dynamic Stability Analysis for Sustainable Microgrids: State-of-the-Art and Perspectives

Review of sub-synchronous interaction in wind integrated power systems: classification, challenges, and mitigation techniques

Power quality enhancement in islanded microgrids via closed-loop adaptive virtual impedance control

Optimal Control Strategy for LVRT and Quasi-Synchronous Droop-Controlled Inverter Considering Voltage Drop on the Distribution

Coordinated Control Strategy and Engineering Application of FSC-VSPSU in Generation State

Related Author

Mingyue Zhang

Yang Han

Yuxiang Liu

Amr S. Zalhaf

Ensheng Zhao

Karar Mahmoud

Mohamed M. F. Darwish

Frede Blaabjerg

Related Institution

School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China

Department of Electrical Engineering, Delhi Technological University, Delhi

Instrumentation and Control Engineering Department, Bharati Vidyapeeth's College of Engineering

Department of Electrical Power Engineering, Faculty of Electrical Engineering, Universiti Teknologi Malaysia (UTM)

Department of Electrical Engineering, Graphic Era Deemed to be University, Dehradun

AI问答

⁰