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μPMU‐based intelligent island detection – the first crucial step toward enhancing grid resilience with MG
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μPMU‐based intelligent island detection – the first crucial step toward enhancing grid resilience with MG
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Journal Article
μPMU‐based intelligent island detection – the first crucial step toward enhancing grid resilience with MG
2020
Overview
With the increased climatic change and modern grid complexity, extreme grid power outage events caused by natural calamity and human interruptions have led to an urgency to enhance the grid resiliency. Microgrids (MGs) have proved to be a concrete solution to these situations. However, these events are quite uncertain, leading to the unintentional island of MGs that has adverse effects. Thus, as a first step toward increasing grid resiliency with MG, informing the distributed generations about the unintentional island is a critical task. Hence, there is a need to develop a quick and reliable unintentional island detection scheme. Micro phasor measurement units (μPMUs) are becoming popular in MG. Given this, this study proposes an inadvertent island detection scheme in an MG using an intelligent μPMU. With the μPMU, the voltage at solar generator bus is measured, three features are extracted through spectral kurtosis and random forest classifier is employed for island detection. After island detection, a control methodology is proposed to circumvent the post‐effects. The method has zero non‐detection zone, 99.83% accuracy and a detection time of 20 ms. The reliability of the algorithm is ascertained using the analytical hierarchical approach and software fault‐tree analysis.
Publisher
The Institution of Engineering and Technology,John Wiley & Sons, Inc,Wiley
Subject
/ analytical hierarchical approach
/ B6140 Signal processing and detection
/ B8120K Distributed power generation
/ B8150 Power system measurement and metering
/ B8250 Solar power stations and photovoltaic power systems
/ distributed power generation
/ inadvertent island detection scheme
/ Kurtosis
/ Methods
/ microphasor measurement units
/ Phasors
/ quick island detection scheme
/ reliable unintentional island detection scheme
/ Sensors
/ Software
