Journal
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
Volume 129, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijepes.2020.106713
Keywords
Hybrid HVDC system; Line commutated converter; Voltage source converter; PQ operating zone; Power flow reversal; DC fault ride-through
Categories
Funding
- Engineering Research Center Program of the National Science Foundation
- U.S. Department of Energy under NSF [EEC-1041877]
- CURENT Industry Partnership Program
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This paper reviews four hybrid LCC-VSC HVDC topologies: pole-hybrid, terminal-hybrid, series converter-hybrid, and parallel converter-hybrid. It provides a comprehensive analysis and comparison of these topologies in terms of PQ operating zone, power flow reversal, and DC fault ride-through strategy.
Hybrid HVDC system, which consists of the advantages of line commutated converter (LCC) and voltage source converter (VSC), is an emerging power transmission system. This paper presents a review of four LCC-VSC hybrid HVDC topologies. The first topology is the pole-hybrid HVDC system, in which the LCC and VSC form the positive- and negative-pole respectively. The second one is the terminal-hybrid HVDC system; in this topology one terminal adopts LCC and the other terminal adopts VSC. The series converter-hybrid HVDC system is the third topology wherein each terminal is formed by LCC and VSC in series. The fourth hybrid topology under consideration is a parallel converter-hybrid HVDC system with LCC and VSC connected in parallel in each terminal. The main contribution of this paper is a comprehensive analysis and comparison of the four mentioned hybrid topologies in terms of PQ operating zone, power flow reversal method, and DC fault ride-through strategy.
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