Negative Sequence Current Control in Wind Power Plants With VSC-HVDC Connection

被引：91

作者：

Chaudhary, Sanjay K. ^{[1
]}

Teodorescu, Remus ^{[1
]}

Rodriguez, Pedro ^{[2
,3
]}

Kjaer, Philip Carne ^{[4
]}

Gole, Ani M. ^{[5
]}

机构：

[1] Aalborg Univ, Dept Energy Technol, DK-9220 Aalborg, Denmark

[2] Tech Univ Catalonia, Dept Elect Engn, Terrassa 08222, Spain

[3] Aalborg Univ, DK-9220 Aalborg, Denmark

[4] Vestas Wind Syst AS, DK-8200 Aarhus, Denmark

[5] Univ Manitoba, Winnipeg, MB R3T 5V6, Canada

来源：

IEEE TRANSACTIONS ON SUSTAINABLE ENERGY | 2012年 / 3卷 / 03期

关键词：

Full-scale converter; high voltage direct-current (HVDC); second-order generalized integrator (SOGI); sequence components; voltage source converter (VSC); wind power plant; wind turbine generator; FARMS;

D O I：

10.1109/TSTE.2012.2191581

中图分类号：

X [环境科学、安全科学];

学科分类号：

083001 [环境科学];

摘要：

Large offshore wind power plants may have multi-MW wind turbine generators (WTG) equipped with full-scale converters (FSC) and voltage source converter (VSC) based high voltaage direct-current (HVDC) transmission for grid connection. The power electronic converters in the WTG-FSC and the VSC-HVDC allow fast current control in the offshore grid. This paper presents a method of controlling the negative sequence current injection into the offshore grid from the VSC-HVDC as well as WTG-FSCs. This would minimize the power oscillations and hence reduce the dc voltage overshoots in the VSC-HVDC system as well as in the WTG-FSCs; especially when the offshore grid is unbalanced due to asymmetric faults. The formulation for negative sequence current injection is mathematically derived and then implemented in electromagnetic transients (EMT) simulation model. The simulated results show that the negative sequence current control mitigates the power oscillations and therefore limits the dc voltage excursions in the VSC-HVDC system during the asymmetric faults.

引用

页码：535 / 544

页数：10

共 19 条

[1]

Control Strategies Based on Symmetrical Components for Grid-Connected Converters Under Voltage Dips [J].