IEC 61850-Based Centralized Protection against Single Line-To-Ground Faults in Ungrounded Distribution Systems

We developed an International Electrotechnical Commission (IEC) 61850-based centralized protection scheme to prevent single line-to-ground (SLG) faults in the feeders and busbars of ungrounded distribution systems. Each feeder intelligent electronic device (IED) measures its zero-sequence current and voltage signals and periodically transmits zero-sequence phasors to a central IED via a Generic Oriented Object Substation Event message. Using the zero-sequence phasors, the central IED detects SLG faults in feeders and busbars. To achieve centralized protection, angle differences between the zero-sequence currents and voltage phasors are exploited, and their calculation compensates for data desynchronization. The feeder IEDs were implemented using the MMS-EASE Lite library, while the transmitted zero-sequence phasors were calculated based on fault signals simulated by Power System Computer Aided Design / Electro-Magnetic Transient Design and Control (PSCAD/EMTDC). The central IED determined if the SLG fault was in a feeder or busbar by aggregating and analyzing the zero-sequence phasors received from the feeder IEDs. The results confirmed the validity and efficiency of our centralized protection scheme.

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Development of IEC 61850 based Integration Engineering Tool for Intelligent Electronic Device

Journal of the Korean Institute of Illuminating and Electrical Installation Engineers ◽

10.5207/jieie.2010.24.8.101 ◽

2010 ◽

Vol 24 (8) ◽

pp. 101-108

Keyword(s):

Electronic Device ◽

Iec 61850 ◽

Intelligent Electronic Device

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Design Methodology for Developing a future-proof IEC 61850 based Intelligent Electronic Device

TENCON 2019 - 2019 IEEE Region 10 Conference (TENCON) ◽

10.1109/tencon.2019.8929559 ◽

2019 ◽

Author(s):

Sudeep Balan ◽

Joseph Mathew ◽

C S Lajitha ◽

L R Sreedhanya ◽

Vijaya Bhaskara Rao

Keyword(s):

Design Methodology ◽

Electronic Device ◽

Iec 61850 ◽

Intelligent Electronic Device

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IEC 61850-Based Communication Networks of Distribution System against Cyber and Physical Failures

World Electric Vehicle Journal ◽

10.3390/wevj12030155 ◽

2021 ◽

Vol 12 (3) ◽

pp. 155

Author(s):

Nevin Fawzy ◽

Hany F. Habib ◽

Osama Mohammed

Keyword(s):

Communication Networks ◽

Transmission Lines ◽

Distribution System ◽

Distribution Systems ◽

System Model ◽

Complete Protection ◽

Iec 61850 ◽

Control Approach ◽

Protection Scheme ◽

Protective Relays

This paper proposes a decentralized control approach using a co-simulation platform to monitor protective elements and provide complete protection scheme for distribution systems. Real time measurements are obtained by interfacing the system model in RSCAD/RTDS with SEL 421 protective relays and publish/subscribe the voltage and current signals of the buses and transmission lines based on IEC 61850 communication protocol to isolate the fault correctly. The proposed technique helps to identify the location of the fault and introduces primary and buck protection for the system. The communication networks assists in facing cyber and physical threats and finding a new path for healthy relays to remove faults from the system. This technique is investigated on an IEEE 14 bus system for all possible fault locations. The proposed scheme can clear the fault by isolating the minimum part of the system and improving the endurance of the power in it. The system shows the smooth information flow between the cyber and physical parts to isolate faults in it in different cases.

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Design and Simulation of Multi-Function Virtual Grid Edge Intelligent Electronic Device with Standardized Semantics Based on IEC 61850 Standard

International Journal of Engineering and Advanced Technology - Regular Issue ◽

10.35940/ijeat.a2664.109119 ◽

2019 ◽

Vol 9 (1) ◽

pp. 2282-2287

Keyword(s):

Smart Grid ◽

Electricity Market ◽

Information Exchange ◽

Electronic Device ◽

Electric Power System ◽

Iec 61850 ◽

Exchange Information ◽

Potential Applications ◽

Intelligent Electronic Device ◽

Advanced Metering

The advancement of communication technologies has facilitated the evolution of traditional electric power system into a vast entity called smart grid. Various domains such as substation automation, distributed energy resources, advanced metering infrastructures, energy storage systems and many more serve as parts and parcels of smart grid. Fundamentally, these domains communicate and exchange information within the domain as well as other domains to execute their intended functions. One example is the grid edge domain in smart grid, where devices at customer premise interact with utility grid as well as electricity market for applications such as demand response and energy trading. Generally, devices in grid edge domain exists independently to perform its specific functions. The information model and communication standards in these devices vary depending on the implementation by its manufacturers. This pose challenges for integration works which may require these devices to exchange information with each other. Therefore, this paper aims to design and proposeamultifunction virtual intelligent electronic device (IED) which capable of performing various applications at grid edge domain. The virtual IED utilizes standardized data model and semantics based on IEC 61850 standard. Information exchange based on IEC 61850 is then simulated between the virtual IED and a Client Simulator. The results indicate successful communication and information exchange based on IEC 61850 standard hence demonstrates the potential applications of the standard for grid edge domain.

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Augmentation of situational awareness by fault passage indicators in distribution network incorporating network reconfiguration

Protection and Control of Modern Power Systems ◽

10.1186/s41601-019-0140-6 ◽

2019 ◽

Vol 4 (1) ◽

Cited By ~ 3

Author(s):

Tanmay Jain ◽

Debomita Ghosh ◽

Dusmanta Kumar Mohanta

Keyword(s):

Power Distribution ◽

Distribution System ◽

Distribution Systems ◽

Fault Location ◽

Situational Awareness ◽

Electronic Device ◽

Distribution Networks ◽

System Stability ◽

System Integrity ◽

Intelligent Electronic Device

AbstractPower distribution systems are profoundly inclined to disturbances like untimely switching of breakers & relays, sympathetic tripping, and uncertainties regarding fault location. Thus, system stability and reliability are greatly affected. In this way, situational awareness and system integrity are the crucial factors in developing power system security, as it empowers successful decision making & timely reaction by the operators to any disturbance and also maintaining continuity of power supply. This paper focuses on the enhancement of situational awareness by fault location through fault passage indicators (FPI) to improve nominal impedance-based methods in distribution networks. Also, the proposed method is validated by comparing it with Intelligent Electronic Device (IED) based fault location method. Further, simultaneous reconfiguration of the system is incorporated to maintain the continuity of supply. The analysis has been tested on IEEE 33 bus distribution system.

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A Survey on Vulnerabilities and Countermeasures in the Communications of the Smart Grid

Electronics ◽

10.3390/electronics10161881 ◽

2021 ◽

Vol 10 (16) ◽

pp. 1881

Author(s):

Jesús Lázaro ◽

Armando Astarloa ◽

Mikel Rodríguez ◽

Unai Bidarte ◽

Jaime Jiménez

Keyword(s):

Smart Grid ◽

Real Time ◽

International Electrotechnical Commission ◽

Communication Infrastructure ◽

Iec 61850 ◽

Best Effort ◽

Electrical Grid ◽

Informational Technology ◽

Iec 62351 ◽

Time Critical

Since the 1990s, the digitalization process has transformed the communication infrastructure within the electrical grid: proprietary infrastructures and protocols have been replaced by the IEC 61850 approach, which realizes interoperability among vendors. Furthermore, the latest networking solutions merge operational technologies (OTs) and informational technology (IT) traffics in the same media, such as time-sensitive networking (TSN)—standard, interoperable, deterministic, and Ethernet-based. It merges OT and IT worlds by defining three basic traffic types: scheduled, best-effort, and reserved traffic. However, TSN demands security against potential new cyberattacks, primarily, to protect real-time critical messages. Consequently, security in the smart grid has turned into a hot topic under regulation, standardization, and business. This survey collects vulnerabilities of the communication in the smart grid and reveals security mechanisms introduced by international electrotechnical commission (IEC) 62351-6 and how to apply them to time-sensitive networking.

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Bi-Directional Power Flow in Switchgear with Static Transfer Switch Applied at Various Renewable Energies

Energies ◽

10.3390/en14113187 ◽

2021 ◽

Vol 14 (11) ◽

pp. 3187

Author(s):

Keon-Woo Park ◽

Chul-Hwan Kim

Keyword(s):

Communication System ◽

Power Flow ◽

Electronic Device ◽

Test Sequence ◽

Test Results ◽

Distributed Generations ◽

Prototype Development ◽

Intelligent Electronic Device ◽

Bidirectional Power Flow ◽

Actual Test

In this study, we describe the development of a plug-in type of switchgear that can control bidirectional power flow. This switchgear system can connect distributed generations such as photovoltaic and wind turbine generation, and AC and DC loads. The proposed switchgear system consists of an inverter for connecting distributed generations and DC load, a static transfer switch (STS) that can control and interrupt the bidirectional power flow, and an intelligent electronic device (IED) that can control each facility using a communication system. Since the topology inside the switchgear is composed of DC bus, it can be operated as a plug-in type of system that can be used by simply connecting the converters of various distributed generations to the inverter in the developed switchgear system. In this study, we describe the overall structure of the proposed switchgear system and the operation of the components. In addition, prototypes of each facility are developed and the results of building a small testbed are presented. Finally, we verify the operation of the inverter by performing an experiment on the testbed and show that throughout a test sequence the proposed switchgear system works normally. The contributions of this study are the development of a plug-in type of switchgear for AC/DC and the actual test results presented through prototype development and testbed configuration.

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