Current-based hybrid protection scheme using signal processing techniques for utility network with high renewable energy generation Online publication date: Wed, 24-Jul-2024
by Anup Kumar; Himanshu Sharma; Ram Niwash Mahia
International Journal of Powertrains (IJPT), Vol. 13, No. 2, 2024
Abstract: Current-based hybrid renewable energy (RE) protection scheme (HREPS) using Stockwell transform (ST), alienation coefficient (ACF) and Wigner distribution function (WDF) is designed for utility network with RE generation. HREPS is effective to detect faults like line to ground, line to line, line to line and ground, all lines and all lines and ground. This is identified by comparing peak magnitude of formulated hybrid RE fault index with RE threshold (RETH). Performance of HREPS is checked to detect faults during operating scenario like changing fault impedance, variations in fault incidence angle, and faults at different nodes of grid. HREPS effectively detects faultswith20dB SNR noise level, discriminates faults from operational events, and detects faults on a 33 kV practical grid. Faults are classified using numbers of faulty phases. Ground availability is recognised using hybrid RE ground fault index. Performance of HREPS is superior compared to protection scheme using discrete wavelet transform.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Powertrains (IJPT):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook