A new passive islanding detection method for hybrid distributed generation under zero power imbalance
by Ch. Rami Reddy; B. Srikanth Goud
International Journal of Power and Energy Conversion (IJPEC), Vol. 12, No. 3, 2021

Abstract: To solve the energy consumption demand of the world and environmental problems in the future, the distributed generation is considered an alternative approach. In this paper, a new passive islanding detection technique is proposed for the hybrid distributed generation (HDG) system based on changes in negative sequence voltage (NSV) and currents during an unintentional islanding. Islanding is caused in the distributed generation system due to failures in the power grid. As per distribution energy resources interconnection standards, it should be detected within 2 sec with the equipments connected to it. It is difficult to detect islanding during zero power imbalance condition. Sequence analyser will separate the positive, negative and zero sequence components of voltages and currents from the voltages and currents obtained at the point of common coupling (PCC). During a wide range of power imbalance conditions, the change in negative sequence voltage and currents are examined for islanding detection. The simulation shows that this method is free from non-detection zone, even at zero power imbalances between load and distribution generation. The computer simulations made in MATLAB/Simulink laboratory show the effectiveness of this method.

Online publication date: Wed, 28-Jul-2021

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
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 Power and Energy Conversion (IJPEC):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your 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