Investigation of a Hybrid HVDC System with DC Fault Ride-Through and Commutation Failure Mitigation Capability

Chunyi Guo; Chengyong Zhao; Maolan Peng; Wei Liu

Investigation of a Hybrid HVDC System with DC Fault Ride-Through and Commutation Failure Mitigation Capability

Vol. 15, No. 5, pp. 1367-1379, Sep. 2015

10.6113/JPE.2015.15.5.1367

Commutation failure

DC fault ride-through

hybrid HVDC

Line commutated converter

Voltage sourced converter

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Abstract

A hybrid HVDC system that is composed of line commutated converter (LCC) at the rectifier side and voltage source converter (VSC) in series with LCC at the inverter side is studied in this paper. The start-up strategy, DC fault ride-through capability, and fault recovery strategy for the hybrid HVDC system are proposed. The steady state and dynamic performances under start-up, AC fault, and DC fault scenarios are analyzed based on a bipolar hybrid HVDC system. Furthermore, the immunity of the LCC inverter in hybrid HVDC to commutation failure is investigated. The simulation results in PSCAD/EMTDC show that the hybrid HVDC system exhibits favorable steady state and dynamic performances, in particular, low susceptibility to commutation failure, excellent DC fault ride-through, and fast fault recovery capability. Results also indicate that the hybrid HVDC system can be a good alternative for large-capacity power transmission over a long distance by overhead line.

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Cite this article

[IEEE Style]

C. Guo, C. Zhao, M. Peng, W. Liu, "Investigation of a Hybrid HVDC System with DC Fault Ride-Through and Commutation Failure Mitigation Capability," Journal of Power Electronics, vol. 15, no. 5, pp. 1367-1379, 2015. DOI: 10.6113/JPE.2015.15.5.1367.

[ACM Style]

Chunyi Guo, Chengyong Zhao, Maolan Peng, and Wei Liu. 2015. Investigation of a Hybrid HVDC System with DC Fault Ride-Through and Commutation Failure Mitigation Capability. Journal of Power Electronics, 15, 5, (2015), 1367-1379. DOI: 10.6113/JPE.2015.15.5.1367.