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IEC 61850 interface for real time power system simulation

Karol Kurek Łukasz Nogal Ryszard Kowalik Marcin Januszewski
Bulletin of the Polish Academy of Sciences Technical Sciences | 2021 | 69 | 3 | e137057 | DOI: 10.24425/bpasts.2021.137057
Keywords implementation in real time power system protection relays testing computer simulation IEC 61850
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Abstract

Real time simulators of IEC 61850 compliant protection devices can be implemented without their analogue part, reducing costs and increasing versatility. Implementation of Sampled Values (SV) and GOOSE interfaces to Matlab/Simulink allows for interaction with protection relays in closed loop during power system simulation. Properly configured and synchronized Linux system with Real Time (RT) patch, can be used as a low latency run time environment for Matlab/Simulink generated model. The number of overruns during model execution using proposed SV and GOOSE interfaces with 50 µs step size is minimal. The paper discusses the implementation details and time synchronization methods of IEC 61850 real time simulator implemented in Matlab/Simulink that is built on top of run time environment shown in authors preliminary works and is the further development of them. Correct operation of the proposed solution is evaluated during the hardware-in-the-loop testing of ABB REL670 relay.
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Bibliography

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Authors and Affiliations

Karol Kurek
1
ORCID: ORCID
Łukasz Nogal
1
ORCID: ORCID
Ryszard Kowalik
1
Marcin Januszewski
1
  1. Faculty of Electrical Engineering, Warsaw University of Technology, Pl. Politechniki 1, 00-661 Warszawa, Poland

The real-time simulator using MATLAB/Simulink software for closed-loop coordination protection devices testing

Adam Smolarczyk Sebastian Łapczyński Michał Szulborski Łukasz Kolimas Łukasz Kozarek
Bulletin of the Polish Academy of Sciences Technical Sciences | 2021 | 69 | 4 | e137413 | DOI: 10.24425/bpasts.2021.137413
Keywords real-time simulator distance protections protection relays testing closed-loop testing MATLAB/Simulink
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Abstract

This paper aims to discuss the behavior of the proprietary real-time simulator (RTS) during testing the coordination of distance relay protections in power engineering. During the construction process of the simulator, the mapping of various dynamic phenomena occurring in the modeled part of the power system was considered. The main advantage to the solution is a lower cost of construction while maintaining high values of essential parameters, based on the generally available software environment (MATLAB/Simulink). The obtained results are discussed in detail. This paper is important from the point of view of the cost-effectiveness of design procedures, especially in power systems exploitation and when avoiding faults that result from the selection of protection relay devices, electrical devices, system operations, and optimization of operating conditions. The manuscript thoroughly discusses the hardware configuration and sample results, so that the presented real-time simulator can be reproduced by another researcher.
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Bibliography

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Authors and Affiliations

Adam Smolarczyk
1
ORCID: ORCID
Sebastian Łapczyński
1
ORCID: ORCID
Michał Szulborski
1
ORCID: ORCID
Łukasz Kolimas
1
ORCID: ORCID
Łukasz Kozarek
2
ORCID: ORCID
  1. Warsaw University of Technology, Faculty of Electrical Engineering, Electrical Power Engineering Institute, 00-662 Warsaw, Poland
  2. ILF Consulting Engineers Polska Sp. z o.o., ul. Osmańska 12, 02-823 Warsaw, Poland

Implementation of IEC 61850 power protection tester in Linux environment

K. Kurek Ł. Nogal R. Kowalik M. Januszewski
Bulletin of the Polish Academy of Sciences Technical Sciences | 2020 | 68 | No. 4 (i.a. Special Section on Advances in Electrical Power Engineering) | 689-696 | DOI: 10.24425/bpasts.2020.134167
Keywords implementation in real time power systems protective relay testing digital control systems IEC 61850
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Abstract

Software power protection tester implemented in a real-time operating system (RTOS) might replace the conventional testing setups in IEC 61850 protection systems. This paper describes an open power protection testing platform. Linux RT capabilities related to runtime environment for such a tester are examined and OS latency sources are identified and evaluated. An algorithm for a multithreaded tester operation is proposed, including Sampled Values (SV) publisher, GOOSE input/output and time synchronization. SV and GOOSE services implemented in RT Linux environment are evaluated in accordance with IEC 61850‒5 transfer time requirements. Linux PTP time synchronization service of two similar systems controlling its electrical ports is evaluated in different synchronization scenarios. The developed tester is compared to an equivalent conventional setup during the test of IED over-current function. The conducted tests show that the Linux implementation of power protection tester in the case of scheduler latency, time synchronization accuracy and transfer time all meet the requirements of IEC 61850.

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Authors and Affiliations

K. Kurek
Ł. Nogal
R. Kowalik
ORCID: ORCID
M. Januszewski

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