This paper illustrates how converter interfaces, used to connect renewable energy sources, HVDC links and infeeds to the power system, may bring significant changes to the behaviour of protection systems in the future. A converter model, capable of providing adjustable fault responses, is used to investigate the response of power system protection to a range of fault conditions. Different scenarios have been simulated by applying different types of faults at different location of the transmission system with a variety of different converter response types. A dynamic, verified, relay model and a hardware relay device have been injected with the simulated results to ascertain network protection performance.
R. Li, C. Booth, A. Dysko, A. Roscoe, H. Urdal, J. Zhu, 13th International Conference on Development in Power System Protection 2016 (DPSP), 2016
KEYWORDS: power system protection, power electronics, renewable power integration, system modelling, protection testing