Converter Control and Protection of the Nelson River HVDC Bipole 2 Commissioning and First Year of Commercial Operation

Mazur, G.B.; Carryer, R.; Ranade, S. T.; Web, T.

doi:10.1109/tpas.1981.316860

Cited by 8 publications

(2 citation statements)

References 1 publication

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“…The algorithms reported in [15][16][17][18] are similar in nature, where the dc voltage and its derivative are compared against thresholds and possibly complemented by a threshold on the current derivative. Although in [15,17], the use of the phase domain is not explicitly mentioned, statements and schemes found in [16,21,22] imply that these functions are implemented on a perpole basis. The detection time and the thresholds are chosen to discriminate line faults from converter and ac faults as well as to prevent the trip of the healthy pole.…”

Section: Phase Domainmentioning

confidence: 99%

HVDC grid protection algorithm design in phase and modal domains

Leterme¹,

Azad

Hertem³

2018

IET Renewable Power Generation

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To meet the required operation speed for protection of meshed voltage source converter (VSC) high voltage direct current (HVDC) grids, traveling wave-based algorithms operating in the sub-millisecond time-frame can be used. The domain in which these algorithms operate, i.e., modal or phase, determines their performance in fault discrimination, fault type classification and faulted pole selection. In the recent literature, high-speed algorithms have been proposed for various VSC HVDC grid configurations and transmission line types; yet the choice of domain has received insufficient attention. This paper offers recommendations for the choice of domain for protection algorithm design of HVDC overhead line or cable systems in symmetric monopolar and bipolar configurations. The theoretical analysis of this paper, which is based on fundamental wave propagation theory, indicates that the preferred domain for protection algorithms for cable and overhead line systems are the phase and modal, respectively. Furthermore, the paper provides comprehensive guidelines to construct detection functions for both configurations and discusses the errors introduced by approximations. Finally, study results from a bipolar overhead line test system demonstrate the advantages of modal over phase domain for fast fault discrimination and classification and illustrate practical problems associated with non-ideal detection functions.

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Section: Phase Domainmentioning

confidence: 99%

HVDC grid protection algorithm design in phase and modal domains

Leterme¹,

Azad

Hertem³

2018

IET Renewable Power Generation

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“…The research about converter fault-detection technology can make sure the type and position of fault and provide strong safeguard for the safe operation of devices and rapid recovery from fault. In recent years, there are many research activities on the hardware and software structure of protection system and the influence of AC system on protection system [1], [2], [3]. But there are few specific studies about HVDC system fault detection and classification.…”

Section: Introductionmentioning

confidence: 99%

S-Transform-Based Classification of Converter Faults in HVDC System by Support Vector Machines

Wen

Zhou

et al. 2013

AMM

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Based on Support Vector Machines (SVM) and S-transform, a novel approach to detect and classify various types of high voltage direct current (HVDC) converter faults is presented. An electro-magnetic transient state simulation software PSCAD/EMTDC was used to set up a simulation model of HVDC system to investigate the typical converter faults. For the good time-frequency characteristic of S-transform, S-transform is applied to obtain useful features of the non-stationary fault signals. Then fault types are identified through the pattern recognition classifier based on SVM classification tree. Numerical results show that the proposed classification method is an effective technique for building up a pattern recognition system for converter fault signals.

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Control Strategies for Multi-Terminal DC Transmission System with Special Parallel Topology

Su¹,

et al. 2020

2020 4th International Conference on HVDC (HVDC)

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Converter Control and Protection of the Nelson River HVDC Bipole 2 Commissioning and First Year of Commercial Operation

Cited by 8 publications

References 1 publication

HVDC grid protection algorithm design in phase and modal domains

HVDC grid protection algorithm design in phase and modal domains

S-Transform-Based Classification of Converter Faults in HVDC System by Support Vector Machines

Control Strategies for Multi-Terminal DC Transmission System with Special Parallel Topology

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