Control of voltage source converter based multi-terminal DC grid under DC fault operating condition

Yousefpoor, Nima; Kim, Sung-Min; Bhattacharya, Subhashish

doi:10.1109/ecce.2014.6954183

Cited by 13 publications

(8 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fault detection strategies have been discussed by researchers when the concept of hybrid breaker was not conceptualised. Researchers in [89,90] have elaborated a mechanism which involves proper detection and isolation of faults in the system with the use of fast DC switches. 'Handshaking' method allows the selection of only one fast DC switch during fault isolation.…”

Section: Fault Detection Strategiesmentioning

confidence: 99%

HVDC transmission for access to off‐shore renewable energy: a review of technology and fault detection techniques

Mitra

Chowdhury

Manjrekar

2018

IET Renewable Power Generation

View full text Add to dashboard Cite

The ever-increasing demand for electric power has partially been met with access to offshore renewable energy, such as wind and tidal energy. With the development in power electronics, high-voltage direct current (HVDC) transmission is taking over as the primary choice for connecting offshore generation to onshore grids. Voltage source converter (VSC)-based HVDC is set to become the backbone of the multi-terminal DC grids replacing the conventional line commutated converter networks. VSC-HVDC networks offer the flexibility for HVDC grids to be connected as conventional AC grids in a meshed network. Advancement of technology has led to the development of the modular multilevel converter which has higher efficiency compared to the two-level VSC configurations. They are gradually becoming a popular choice. Although VSC-based grids offer a varied range of advantages, it is highly vulnerable to DC faults. Many designs of breakers have been patented over the years and various means have been proposed for their control. This study aims to review the available designs of HVDC terminals, the available protection devices and the protection and control methods for HVDC breakers. By comparing the state-of-the-art technologies that are currently available, this study aims to address the research issues and the additional research and development work that needs to be done.

show abstract

Section: Fault Detection Strategiesmentioning

confidence: 99%

HVDC transmission for access to off‐shore renewable energy: a review of technology and fault detection techniques

Mitra

Chowdhury

Manjrekar

2018

IET Renewable Power Generation

View full text Add to dashboard Cite

show abstract

“…The DC current of the converter terminal rapidly increases after a DC fault. Thus, once the measured DC current (i DC , Figure 1) is out of normal range, the DC fault is detected and appropriate protection measures can then be adopted (Yousefpoor, Kim, & Bhattacharya, 2014).…”

Section: Converter DC Terminal Currentmentioning

confidence: 99%

Review of DC fault protection for HVDC grids

2017

WIREs Energy & Environment

View full text Add to dashboard Cite

The development of modular multilevel converter (MMC) and the increased needs for long distance bulk power transmission using underground and subsea cables have promoted the rapid development and application of voltage source converter (VSC) based high‐voltage DC (HVDC) systems. In this paper, recent advances in the area of DC fault protection in VSC‐based HVDC systems are reviewed. The main characteristics during DC faults are described and various converter topologies, which have DC fault blocking capability, are introduced and compared in terms of efficiency, cost, and control flexibility. The development of DC circuit breaker is introduced and various methods for DC fault detection and system level protection approaches for large scale HVDC grids are also discussed. WIREs Energy Environ 2018, 7:e278. doi: 10.1002/wene.278 This article is categorized under: Energy Infrastructure > Systems and Infrastructure Energy Systems Economics > Systems and Infrastructure

show abstract

“…Multi-terminal HVDC system (MTDC) using VSC technology has greater flexibility for large-scale renewable energy integration and transmission network connection due to its ability for independent power control both active and reactive power, AC voltage support, and black-start capabilities. However, there is a major challenge toward the protection of an MTDC system in the event of a fault at the DC side of the network including fault protection, fault location and isolation [1][2][3]. As the rate of rise of DC fault current is very high due to the low impedance of the DC network, the protection system has to act fast and an effective protection method needs to detect the fault and its location and isolate the faulty line in a selective manner allowing fast restoration of normal system operation following a DC fault [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

DC fault protection strategy considering DC network partition

Rahman

Yao

2016

2016 IEEE Power and Energy Society General Meeting (PESGM)

View full text Add to dashboard Cite

This paper investigates DC network partition and alternative DC fault protection strategy for Multi-terminal HVDC (MTDC) system. Fast acting DC Circuit Breakers (DCCBs) or fault blocking DC-DC converters can be configured at strategic locations to allow the entire MTDC system to be operated interconnected but partitioned into islanded DC network zones following faults. In case of any DC fault event, the DCCBs or DC-DC converters at the strategic cable connections that link the different DC network partitions are opened or blocked such that the faulty DC network zone is quickly isolated from the remaining of the MTDC system. Thus, the healthy DC network zone can remain operational or recover quickly to restore power transmission. Each DC zone can be protected using AC circuit breakers and DC switches for cost reduction. The validity of the proposed protection strategy is confirmed using MATLAB/SIMULINK simulation

show abstract

Control of voltage source converter based multi-terminal DC grid under DC fault operating condition

Cited by 13 publications

References 6 publications

HVDC transmission for access to off‐shore renewable energy: a review of technology and fault detection techniques

HVDC transmission for access to off‐shore renewable energy: a review of technology and fault detection techniques

Review of DC fault protection for HVDC grids

DC fault protection strategy considering DC network partition

Contact Info

Product

Resources

About