NDLI: Band pass filter and AFVmean-based unintentional islanding detection

Content Provider	IET Digital Library
Author	Murugesan, Suman Murali, Venkatakirthiga
Abstract	Several international standards have suggested to detect the unintentional island formation to safeguard the working personnel and protect the electrical equipment in the system. An active islanding detection technique, which employs the q-axis current disturbance injection, has been utilised and an analysing technique is proposed in this work based on a combination of band pass filter and mean of absolute frequency variation (AFVmean) to detect and differentiate the island formation from other transient events. The proposed analysing technique (PAT) detects island formation within 180 ms, which is less than the prescribed time of various international standards, applicable to dynamic loading conditions without the need of adaptive threshold and communication, and offers zero non-detection zone (NDZ). The disturbance injection makes significant variation in the frequency of voltage signal on post-islanding condition even for zero-power mismatch condition, therefore, the NDZ is zero. The PAT is corroborated for various islanding and non-islanding events and the simulations are performed in MATLAB/Simulink tool.
Starting Page	1489
Ending Page	1498
Page Count	10
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 9, May (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2018.5314
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-01-30
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Absolute Frequency Variation Active Islanding Detection Technique AFV Mean-based Unintentional Islanding Detection Band Pass Filter Band-pass Filter Distributed Power Generation Dynamic Loading Condition Electrical Equipment Protection International Standards MATLAB-Simulink Tool Nonislanding Events Other Power Apparatus And Electric Machine Post-islanding Condition Power Distribution Fault Power Filter Power Generation Fault Power Grid Power System Transients Proposed Analysing Technique Q-axis Current Disturbance Injection Time 180.0 Ms Unintentional Island Formation Voltage Signal Frequency Working Personnel Zero Nondetection Zone Zero-power Mismatch Condition
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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