A New Current Limiting and Overload Protection Strategy for Droop-Controlled Voltage-Source Converters in Islanded AC Microgrids Under Grid Faulted Conditions

被引：0

作者：

Li, Zi-lin ^{[1
]}

Hu, Jiefeng ^{[2
]}

Chan, Ka Wing ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Elect Engn, Hong Kong, Peoples R China

[2] Federat Univ Australia, Sch Engn Informat Technol & Phys Sci, Mt Helen, Australia

来源：

2020 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2020年

关键词：

grid-forming converter; current limiting; transient disturbances; fault ride-through capability; microgrid;

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：

Grid-forming voltage source converter (VSC) plays a vital role in the future renewable energy-based utility grid. Limited by the thermal capability of semiconductor switches, grid-forming VSC-based distributed generation units (DGs) cannot stand excess overcurrent like synchronous generators (SG) during large transient disturbances. In order to protect the VSC from overcurrent and ride through the transient disturbances, a new current limiting and overload protection strategy is proposed in this paper. By properly selecting the maximum current thresholds in the synchronous rotating frame, overcurrent and overload protection are achieved simultaneously. The synchronization among DGs is enhanced by feeding back the output voltage in the q-axis to the active power droop control. A comparison study between the proposed strategy and two existing methods are conducted using a networked microgrid in PSCAD/EMTDC, examining the effectiveness of the proposed strategy.

引用

页码：3888 / 3893

页数：6

共 18 条

[1]

[Anonymous], 2020, IEEE T POWER ELECT, DOI DOI 10.1109/JIOT.2020.2992069

[2]

aspatis A.G. P., 2019, 2019 IEEE MILAN POWERTECH, P1, DOI 10.1109/PTC.2019.8810595

[3] Unidirectional Fault Current Limiter: An Efficient Interface Between the Microgrid and Main Network [J].

Ghanbari, Teymoor ;

Farjah, Ebrahim .

IEEE TRANSACTIONS ON POWER SYSTEMS, 2013, 28 (02) :1591-1598

[4] Current Reference Generation Based on Next-Generation Grid Code Requirements of Grid-Tied Converters During Asymmetrical Faults [J].

Graungaard Taul, Mads ;

Wang, Xiongfei ;

Davari, Pooya ;

Blaabjerg, Frede .

IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, 2020, 8 (04) :3784-3797

[5] Voltage Stabilization A Critical Step Toward High Photovoltaic Penetration [J].

Hu, Jiefeng ;

Li, Zilin ;

Zhu, Jianguo ;

Guerrero, Josep M. .

IEEE INDUSTRIAL ELECTRONICS MAGAZINE, 2019, 13 (02) :17-30

[6]

Hu JF, 2014, INT C ELECTR MACH SY, P2815, DOI 10.1109/ICEMS.2014.7013977

[7] Transient Stability Analysis and Control Design of Droop-Controlled Voltage Source Converters Considering Current Limitation [J].

Huang, Linbin ;

Xin, Huanhai ;

Wang, Zhen ;

Zhang, Leiqi ;

Wu, Kuayu ;

Hu, Jiabing .

IEEE TRANSACTIONS ON SMART GRID, 2019, 10 (01) :578-591

[8] Grid-Forming Inverters: A Critical Asset for the Power Grid [J].

Lasseter, Robert H. ;

Chen, Zhe ;

Pattabiraman, Dinesh .

IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, 2020, 8 (02) :925-935

[9] Virtual-Impedance-Based Fault Current Limiters for Inverter Dominated AC Microgrids [J].

Lu, Xiaonan ;

Wang, Jianhui ;

Guerrero, Josep M. ;

Zhao, Dongbo .

IEEE TRANSACTIONS ON SMART GRID, 2018, 9 (03) :1599-1612

[10] Virtual Impedance Current Limiting for Inverters in Microgrids With Synchronous Generators [J].

Paquette, Andrew D. ;

Divan, Deepak M. .

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2015, 51 (02) :1630-1638

← 1 2 →