Open AccessMicrogrid protection using Hilbert–Huang transform based‐differential scheme
Author(s) -
Gururani Ashika,
Mohanty Soumya R.,
Mohanta Jagadish Chandra
Publication year - 2016
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2015.1563
Subject(s) - microgrid , fault (geology) , reliability (semiconductor) , computer science , electrical impedance , control theory (sociology) , hilbert transform , scheme (mathematics) , fault detection and isolation , differential (mechanical device) , signal (programming language) , electronic engineering , mathematics , engineering , power (physics) , telecommunications , artificial intelligence , electrical engineering , mathematical analysis , control (management) , aerospace engineering , physics , spectral density , quantum mechanics , seismology , actuator , programming language , geology
Time–frequency‐based differential scheme is proposed for microgrid protection using non‐stationary signal analysis. The non‐stationary signal processing algorithm Hilbert–Huang Transform (HHT) have been implemented for the protection objective and the comparative assessment with that of S‐transform, differential current is carried out in order to demonstrate the reliability of the proposed protection scheme with different case studies. The series of simulation results demonstrates the efficacy of HHT, than that of S‐transform in some critical cases such as high impedance fault where accurate detection is a challenge. The configuration of the microgrid test model has been developed in PSCAD with different distributed generation such as photovoltaic and wind generation system penetrated at different buses. Thus, it is found that the HHT scheme is quite reliable and efficient for fault detection objective.