Analysis of Ride-Through Capability of Unidirectional-Current MMC with Arm Current Unidirectionality Disrupted

被引：1

作者：

Li, Zhengxuan ^{[1
]}

Song, Qiang ^{[1
]}

Zhao, Biao ^{[1
]}

Yu, Zhanqing ^{[1
]}

Zeng, Rong ^{[1
]}

Cui, Bin ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2024年 / 39卷 / 08期

基金：

国家重点研发计划;

关键词：

Voltage; Transient analysis; Circuit faults; Capacitors; Topology; Steady-state; Voltage control; Current control; open-arm state; unidirectional-current full-bridge modular multilevel converter (UC-FB-MMC); unidirectional arm current; CONVERTER;

D O I：

10.1109/TPEL.2024.3392723

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Unidirectional-current full-bridge submodule (UC-FBSM) based modular multilevel converter (UC-FB-MMC) has high power-density, dc fault-clearing capability and dynamic dc voltage adjustability, and is therefore suitable for many new dc applications. The normal operation of UC-FB-MMC requires the arm currents being always positive. This requirement can be met in steady states by designing a sufficiently high ac voltage to decrease the ac components of the arm currents. However, some transient states may cause the arm currents to reach 0 and tend to be negative and cause the UC-FB-MMC to enter an abnormal state with non-positive arm currents. The feasibility of UC-FB-MMCs in practical applications is impacted by whether or not the UC-FB-MMCs can ride through these states. This article first analyzes the current paths and intuitively verifies that the ac- and dc-side currents are not interrupted in the states with non-positive arm currents. Then, the mathematical models of a single arm with non-positive current reveals that the ac- and dc-side currents are still under control, but the control effects become poor. After that, a modified controller is proposed to enhance the control effects. Simulation and experimental results verify the analysis.

引用

页码：9257 / 9267

页数：11

共 42 条

[31] Inner-Loop Current Control for Low-Voltage Ride-Through of Permanent-Magnet Synchronous Generator [J].

Li, Shenghu ;

Huang, Jiejie ;

Wang, Zhengfeng .

IECON 2017 - 43RD ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY, 2017, :2546-2551

[32] A review on current injection techniques for low-voltage ride-through and grid fault conditions in grid-connected photovoltaic system [J].

Hassan, Z. ;

Amir, A. ;

Selvaraj, J. ;

Rahim, N. A. .

SOLAR ENERGY, 2020, 207 :851-873

[33] Predictive Current Control of a Back-to-Back NPC Wind Energy Conversion System to meet Low Voltage Ride-Through Requirements [J].

Alepuz, S. ;

Calle, A. ;

Busquets-Monge, S. ;

Nicolas-Apruzzese, J. ;

Bordonau, J. .

39TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY (IECON 2013), 2013, :5306-5311

[34] Comparison of Current-Limiting Strategies During Fault Ride-Through of Inverters to Prevent Latch-Up and Wind-Up [J].

Bottrell, Nathaniel ;

Green, Timothy C. .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2014, 29 (07) :3786-3797

[35] Harmonic suppression and fault ride-through method of diode-rectifier-based hybrid high-voltage direct current system for offshore wind farms integration [J].

Fang, Zixi ;

Yang, Renxin ;

Cai, Xu ;

Wei, Xinchi ;

Zha, Kunpeng ;

Yu, Haotian .

IET GENERATION TRANSMISSION & DISTRIBUTION, 2023, 17 (15) :3364-3375

[36] Low Voltage Ride-through Compound Control Strategy of Doubly-fed Induction Generator Based on Stator Current Differential Feedforward Control [J].

Jiang H. ;

Wang S. ;

Jia Y. ;

Zhou T. ;

Bai Y. ;

Cai J. .

Gaodianya Jishu/High Voltage Engineering, 2021, 47 (01) :198-204

[37] Non-controlled Fault Current Limiter to Improve Fault Ride through Capability of DFIG-Based Wind Turbine [J].

Nderi, Seyed Behzad ;

Negnevistky, Michael ;

Jalilian, Amin ;

Hagh, Mehrdad Tarafdar .

2016 IEEE POWER AND ENERGY SOCIETY GENERAL MEETING (PESGM), 2016,

[38] Analysis and Control of Fault Ride-Through Capability Improvement for Wind Energy Conversion System Using Linear Active Disturbance Rejection Control With Correction Link [J].

Ma, Youjie ;

Tao, Long ;

Zhou, Xuesong ;

Shi, Xueqi .

IEEE ACCESS, 2020, 8 (73816-73827) :73816-73827

[39] Fault ride through control of PV grid-connected inverter with current-limited capability under unbalanced grid voltage conditions [J].

Guo, Xiaoqiang ;

Liu, Wenzhao ;

Wang, Baocheng ;

Lu, Zhigang ;

Sun, Xiaofeng .

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering, 2015, 35 (20) :5155-5162

[40] Analysis and Control of Fault Ride-Through Capability Improvement for Wind Turbine Based on a Permanent Magnet Synchronous Generator Using an Interval Type-2 Fuzzy Logic System [J].

Gencer, Altan .

ENERGIES, 2019, 12 (12)

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