Search
Now showing items 1-10 of 78
Grid Frequency and Amplitude Control Using DFIG Wind Turbines in a Smart Grid
(MDPI, 2021-01-11)
Wind-generated energy is a fast-growing source of renewable energy use across the world. A dual-feed induction machine (DFIM) employed in wind generators provides active and reactive, dynamic and static energy support. In ...
A Fixed-Latency Architecture to Secure GOOSE and Sampled Value Messages in Substation Systems
(IEEE, 2021-03-26)
International Electrotechnical Commission (IEC) 62351-6 standard specifies the security mechanisms to protect real-time communications based on IEC 61850. Generic Object Oriented Substation Events (GOOSE) and Sampled Value ...
Functional Safety BMS Design Methodology for Automotive Lithium-Based Batteries
(MDPI, 2021-10-21)
The increasing use of lithium batteries and the necessary integration of battery management systems (BMS) has led international standards to demand functional safety in electromobility applications, with a special focus ...
Refractive-Index Profile Reconstruction in Graded-Index Polymer Optical Fibers Using Raman Spectroscopy
(MDPI, 2020-05-14)
This work reports a novel method to create a 3D map of the refractive index of different graded-index polymer optical fibers (GI-POF), measuring the Raman spectra at different points of their transverse sections. Raman ...
Structural Health Monitoring Using Ultrasonic Guided-Waves and the Degree of Health Index
(MDPI, 2021-02-02)
This paper proposes a new damage index named degree of health (DoH) to efficiently tackle structural damage monitoring in real-time. As a key contribution, the proposed index relies on a pattern matching methodology that ...
An Empirical Study on Transmission Beamforming for Ultrasonic Guided-Wave Based Structural Health Monitoring
(MDPI, 2020-03-06)
The development of reliable structural health monitoring techniques is enabling a healthy transition from preventive to condition-based maintenance, hence leading to safer and more efficient operation of different industries. ...
Ultrasonic Guided Wave Testing on Cross-Ply Composite Laminate: An Empirical Study
(MDPI, 2020-09-16)
Structural health monitoring comprises a set of techniques to detect defects appearing in structures. One of the most viable techniques is based on the guided ultrasonic wave test (UGWT), which consists of emitting waves ...
Reliable Control Applications with Wireless Communication Technologies: Application to Robotic Systems
(MDPI, 2021-10-26)
The nature of wireless propagation may reduce the QoS of the applications, such that some packages can be delayed or lost. For this reason, the design of wireless control applications must be faced in a holistic way to ...
Scalable IoT Architecture for Monitoring IEQ Conditions in Public and Private Buildings
(MDPI, 2022-03-21)
This paper presents a scalable IoT architecture based on the edge–fog–cloud paradigm for monitoring the Indoor Environmental Quality (IEQ) parameters in public buildings. Nowadays, IEQ monitoring systems are becoming ...
Encryption AXI Transaction Core for Enhanced FPGA Security
(MDPI, 2022-10-18)
The current hot topic in cyber-security is not constrained to software layers. As attacks on electronic circuits have become more usual and dangerous, hardening digital System-on-Chips has become crucial. This article ...