NDLI: Integration of renewable energy sources with LCC HVDC system using a new circuit topology with DC fault ride-through capability

Content Provider	IET Digital Library
Author	Mathew, Ebin Cherian Das, Anandarup Sharma, Rahul
Abstract	The integration of remote renewable energy sources located near the long-distance HVDC transmission corridor to the HVDC system is an active area of research. This study presents a new fault-tolerant scheme using a modular soft-switched DC–DC converter with high-voltage gain to integrate renewable energy sources to LCC-based HVDC systems. The configuration, operating principle and mathematical modelling of the new DC–DC converter are described in this study. As both the charging and discharging processes takes place through resonant circuits, zero current switching of all the switches used in the converter is achieved. The proposed scheme has the inherent fault-tolerant capability and enables fast recovery from commutation failures in the main LCC HVDC system. The operation of the proposed scheme during various fault scenarios is analysed and explained in this study. The performance of the proposed scheme and its fault ride though the capability is verified using a simulation model built in PSCAD/EMTDC and an experimental prototype.
Starting Page	4551
Ending Page	4561
Page Count	11
ISSN	17554535
Volume Number	13
e-ISSN	17554543
Issue Number	Issue 19, Dec (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2020.0696
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/13/19
Journal	IET Power Electronics
Publisher Date	2021-01-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Circuit Topology Commutation Control of Electric Power System D.C. Transmission DC Fault Ride-through DC-DC Power Converter DC–DC Converter Fault Scenario Fault Tolerance Fault-tolerant Scheme High-voltage Gain HVDC Power Converter HVDC Power Transmission Inherent Fault-tolerant Capability Main LCC HVDC System Power Converter Power Grid Power Supplies to Apparatus Remote Renewable Energy Source Renewable Energy Source Resonant Circuit Switching Converter Zero Current Switching
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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