Analysis of Propagation Delay for Multi-Terminal High Voltage Direct Current Networks Interconnecting the Large-Scale Off-Shore Renewable Energy

Muhammad Haroon Nadeem, Xiaodong Zheng, Nengling Tai, Mehr Gul and Sohaib Tahir
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Muhammad Haroon Nadeem: School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Xiaodong Zheng: School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Nengling Tai: School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Mehr Gul: School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Sohaib Tahir: School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Energies, 2018, vol. 11, issue 8, 1-15

Abstract: Voltage-source-converter-based multi-terminal high voltage direct current (MTDC) networks are extensively recognized as a viable solution for meeting the increasing demand of electrical energy and escalating penetration of renewable energy sources. DC faults are major limitations to the development of MTDC networks. The analysis of variable constraints has become mandatory in order to develop a reliable protection scheme. This paper contributes in assessing the propagation delay with the analytical approximation in MTDC networks. The propagation delay is analyzed in the time domain by taking only the forward traveling wave into account and considering the initial voltage step of magnitude at the fault position. Numerous simulations were carried out for different parameters and arrangements in Power System Computer Aided Design (PSCAD) to explore the proposed expressions. The results accurately depicted the time development of fault current. The results obtained from the real-time digital simulator (RTDS) confirmed that the proposed approach is capable of evaluating propagation delay in MTDC networks. Moreover, the influence of fault resistance is also taken into account for investigating its effect on the system parameters.

Keywords: propagation delay; high voltage direct current (HVDC) protection; multi-terminal HVDC (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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