Fault detection in HVDC-connected wind farm with full converter generator

Irnawan, Roni; Srivastava, K. N.; Mohajerpoor, Reza

doi:10.1016/j.ijepes.2014.08.003

Cited by 15 publications

(9 citation statements)

References 14 publications

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“…22 HVDC system is prone to DC and AC fault. 23 Pole to ground fault is very common in DC and there are AC faults like single line to ground fault, double line to ground fault and three phase fault. Single line to ground faults were analyzed in Pathan and Kulkarni.…”

Section: Introductionmentioning

confidence: 99%

Closed loop control of voltage source converters during faults in high voltage DC transmission system

Ramesh

Kirubakaran

Suresh³

et al. 2019

The International Journal of Electrical Engineering & Educa

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High voltage DC transmission is very cost effective alternate solution for high voltage AC transmission. High voltage DC transmission towers occupy less space and poles carry more current compared to high voltage AC system. High voltage DC transmission lines are emerging as an alternate solution for flexible AC transmissions (FACTS) technology. Earlier either thyristor valves or mercury valves were used in converters.Voltage source converter has replaced conventional converter in high voltage DC system because of their flexible control, black start capability, and they can work with weak AC system. Switching at higher frequency is also an added advantage. In voltage source converter-based high voltage DC transmission, both real and reactive power transmitted can be controlled whereas in conventional line commutated converter-based high voltage DC transmission system, only the real power transmitted was controlled. There may be chances of grid faults in sending end and receiving end stations. The typical faults are single line fault, double line to ground fault and three phase fault. The faults in one high voltage DC station should not affect the other end station. Necessary control should be initiated to take care of AC faults on both the sides that are before rectification in the sending end station and after inversion in the receiving end station. To handle such faults, the voltage source converters should be

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Section: Introductionmentioning

confidence: 99%

Closed loop control of voltage source converters during faults in high voltage DC transmission system

Ramesh

Kirubakaran

Suresh³

et al. 2019

The International Journal of Electrical Engineering & Educa

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“…The use of offshore wind farms has resulted in some technical challenges, including fault detection, isolation, and restoration (FDIR) methods for offshore wind farms. In the offshore collector grid, fault currents are mainly determined by FRC-WTs and HVDC controls in the case of a fault [11]. Offshore wind farms with a VSC-HVDC connection will have different fault responses compared to conventional alternating current (AC) systems.…”

Section: Introductionmentioning

confidence: 99%

“…If the system topology is changed, the fault current levels should be recalculated. The authors of [18] proposed a protection method based on peak current and directional power; the protection system can detect the faulted feeder and faulted feeder section. However, this method can only respond to a three-phase fault.…”

Section: Introductionmentioning

confidence: 99%

Unsynchronized Phasor-Based Protection Method for Single Line-to-Ground Faults in an Ungrounded Offshore Wind Farm with Fully-Rated Converters-Based Wind Turbines

et al. 2017

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This paper proposes a protection method for single line-to-ground (SLG) faults in an ungrounded offshore wind farm with fully-rated converter-based wind turbines. The proposed method uses the unsynchronized current phasors measured by unit protections installed at the connection point of the fully-rated converter (FRC)-based wind turbines (WTs). Each unit protection collects the unsynchronized current phasors from two adjacent nodes and synchronizes them by aligning the positive-sequence current to the same phase angle. The faulted section is identified by comparing the phase angles of the synchronized zero-sequence currents from adjacent nodes. Simulations of an ungrounded offshore wind farm with relay models were carried out using power system computer-aided design (PSCAD)/ electromagnetic transients including direct current (EMTDC).

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“…Due to its merits of bidirectional power transmission, sinusoidal line current, controllable power factor, and good dc‐link voltage regulation ability with a small‐size capacitor [1–4], three‐phase pulse width modulation rectifier (PWMR) has been widely used in various grid‐connected power conversion system, including adjustable speed drives [5], microgrid [6], voltage source converter transmission [7], active power ﬁlter [8] and wind turbine generation system [9–11].…”

Section: Introductionmentioning

confidence: 99%

Diagnosis of single‐phase open‐line fault in three‐phase PWM rectifier with LCL filter

Sun

Duan

2016

IET Generation, Transmission & Distribution

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Fault detection in HVDC-connected wind farm with full converter generator

Cited by 15 publications

References 14 publications

Closed loop control of voltage source converters during faults in high voltage DC transmission system

Closed loop control of voltage source converters during faults in high voltage DC transmission system

Unsynchronized Phasor-Based Protection Method for Single Line-to-Ground Faults in an Ungrounded Offshore Wind Farm with Fully-Rated Converters-Based Wind Turbines

Diagnosis of single‐phase open‐line fault in three‐phase PWM rectifier with LCL filter

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