Threats against critical infrastructure in various sectors (power, water, etc.) are constantly present as their cyber-physical control and communication systems introduce a combination of modern and legacy components....
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Image inpainting is an important task in computer vision. As admirable methods are presented, the inpainted image is getting closer to reality. However, the result is still not good enough in the reconstructed texture...
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Wavelet threshold noise reduction is widely used because of its simple algorithm and small computation. The properties of the threshold function are studied and a new two-parameter adjustable threshold function is des...
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Integrating inverter-based resources (IBRs) into the grid significantly alters the dynamics of modern power systems, and IBRs have been linked to sub-synchronous oscillation (SSO) events worldwide. Identifying the con...
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ISBN:
(数字)9798331507695
ISBN:
(纸本)9798331507701
Integrating inverter-based resources (IBRs) into the grid significantly alters the dynamics of modern power systems, and IBRs have been linked to sub-synchronous oscillation (SSO) events worldwide. Identifying the conditions favorable for the occurrence of SSO is essential to ensure the stability of the system and prevent adverse interactions that could damage the components of the power system or even lead to system failure. This paper investigates a specific 20 Hz oscillation event that took place at 5:30 AM on November 21, 2021, at the Kaua'i power system following the tripping of an oil power plant. Using an electromagnetic transient (EMT) model in PSCAD, we performed a sensitivity analysis to examine the conditions and scenarios that contribute to the creation of SSO's. Our findings reveal that specific Synchronous Reference Frame Phase-Locked Loop (SRF-PLL), when interacting with shunt compensation, plays a significant role in the generation of SSO's. To validate these findings, a frequency-scanning-based impedance analysis (FSBIA) is conducted. FSBIA provides a comprehensive assessment of the impedance characteristics of the system on a wide range of frequencies, which is used to identify the stability of the system. The study illustrates that precise tuning of SRF-PLL parameters can effectively mitigate SSO risks.
Distilled self-supervised models have shown competitive performance and efficiency in recent years. However, there is a lack of experience in jointly distilling multiple self-supervised speech models. In our work, we ...
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The field of Human Activity Recognition (HAR) is growing significantly in several areas but little research focuses on cultural behavior. How machine learning can explain human activity as a promotional tool in unders...
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Cellular quantum dot (QCA) technology is a recent technology. It is used to get rid of the limitations of complementary metal semiconductor (CMOS). This is why high-speed QCA circuits, ultra-low consumption, and less ...
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Fabrication today relies on disparate, large machines spread across industrial facilities. These are operated by domain experts to construct and assemble artefacts in sequential steps from large numbers of parts. This...
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Hybrid network protection algorithms represent a critical vicinity in facts safety techniques. Inside the computation of networking environments, such algorithms provide a cozy and dependable mechanism for site visito...
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