Publication type: Conference paper
Type of review: Peer review (publication)
Title: Experimental and HIL investigation of under-frequency and rate of change of frequency load shedding schemes in interconnected networks with high penetration of renewable generation
Authors: Favre-Perrod, Patrick
Sattinger, Walter
Korba, Petr
Ramirez Gonzalez, Miguel
Segundo Sevilla, Felix Rafael
Wartmann, Bruno
et. al: No
DOI: 10.1049/icp.2021.1898
Proceedings: CIRED 2021 - The 26th International Conference and Exhibition on Electricity Distribution
Page(s): 1131
Pages to: 1135
Conference details: The 26th International Conference and Exhibition on Electricity Distribution (CIRED), online, 20-23 September 2021
Issue Date: Sep-2021
Publisher / Ed. Institution: Institution of Engineering and Technology
ISBN: 978-1-83953-591-8
Language: English
Subjects: Under-frequency load shedding; Rate of change of frequency; Protection; Frequency stability
Subject (DDC): 621.3: Electrical, communications, control engineering
Abstract: Under-frequency Load Shedding Schemes (UFLS) are a well-established part of any under-frequency defence plan. Their future effectiveness in systems with increased penetration of renewable energy sources without rotating mass should however be questioned: lower inertia implies higher frequency gradients; more power electronics implies higher harmonics. Both factors will concur to make frequency measurements and short relay operation times more challenging: In this contribution, the impact of the penetration of renewable sources on the rate of change of frequency (RoCoF) in continental Europe has been simulated with the dynamic ENTSO-E model for different penetration levels, confirming the higher RoCoF and lower frequency nadir to be expected in case of large disturbances. The operation of the current UFLS scheme is included in the model and has been compared with a scheme incorporating a RoCoF criterion. The authors have also performed laboratory tests in order to assess the use of RoCoF-based load shedding as an improvement to frequency-only based load shedding schemes. Central European transmission and distribution system operators have established joint bodies for agreeing on the best evolution of underfrequency defence plans: challenges include frequency measurement and correct coordination of several control schemes and approaches within the CE transmission system community.
URI: https://digitalcollection.zhaw.ch/handle/11475/24949
Fulltext version: Published version
License (according to publishing contract): Licence according to publishing contract
Departement: School of Engineering
Organisational Unit: Institute of Energy Systems and Fluid Engineering (IEFE)
Appears in collections:Publikationen School of Engineering

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