Blar i NTNU Open på forfatter "Molinas Cabrera, Maria Marta"
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Decentralized Fuzzy-Based Voltage Control for LV Distribution Systems
Bernal, Efrain; Bueno-Lopez, Maximiliano; Molinas Cabrera, Maria Marta (Chapter, 2017)With the inclusion of Information and Communication Technology (ICT) components into the lowvoltage (LV) distribution grid, some measurement data from smart meters are available for the control of the distribution networks ... -
Design and Implementation of a Monitoring System for Decision Support in a Micro-Business Based on Solar Energy Microgrid in Rural Colombia
Aabrek, Vegar; Forseth, Ingvild; Maximiliano, Bueno-Lopez; Molinas Cabrera, Maria Marta (Chapter, 2018)Rural electrification schemes are necessary for social and economic development. In several countries of Africa, Asia and Latin America this issue is fundamental and some governments have adopted new policies to increase ... -
Discrete-Time Tool for Stability Analysis of DC Power Electronics-Based Cascaded Systems
Zadeh, Mehdi Karbalaye; Gavagsaz-Ghoachani, Roghayeh; Martin, Jean-Philippe; Pierfederici, Serge; Nahid-Mobarakeh, Babak; Molinas Cabrera, Maria Marta (Journal article; Peer reviewed, 2017)DC distribution power systems are vulnerable to instability because of the destabilizing effect of converter-controlled constant power loads (CPLs) and input filters. Standard stability analysis tools based on averaging ... -
Discussion on the mode mixing in wave energy control systems using the Hilbert-Huang transform
Garcia Rosa, Paula Bastos; Molinas Cabrera, Maria Marta; Fosso, Olav B (Peer reviewed; Journal article, 2019)A great improvement in the absorption of energy of a wave energy converter (WEC) is obtained with a time-varying power take-off (PTO) damping over a constant damping. In a passive control scheme based on the Hilbert-Huang ... -
Distributed control architecture for real-time model predictive control for system-level harmonic mitigation in power systems
Skjong, Espen; Johansen, Tor Arne; Molinas Cabrera, Maria Marta (Journal article; Peer reviewed, 2019)It can be challenging to design and implement Model Predictive Control (MPC) schemes in systems with fast dynamics. As MPCs often introduce high computational loads, it can be hard to assure real-time properties required ... -
DYNLO: Enhancing Non-linear Regularized State Observer Brain Mapping Technique by Parameter Estimation with Extended Kalman Filter
Soler Guevara, Andres Felipe; Giraldo, Eduardo; Molinas Cabrera, Maria Marta (Journal article; Peer reviewed, 2019)The underlying activity in the brain can be estimated using methods based on discrete physiological models of the neural activity. These models involve parameters for weighting the estimated source activity of previous ... -
EEG Channel-Selection Method for Epileptic-Seizure Classification Based on Multi-Objective Optimization
Moctezuma, Luis Alfredo; Molinas Cabrera, Maria Marta (Peer reviewed; Journal article, 2020)We present a multi-objective optimization method for electroencephalographic (EEG) channel selection based on the non-dominated sorting genetic algorithm (NSGA) for epileptic-seizure classification. We tested the method ... -
EEG-based Subjects Identification based on Biometrics of Imagined Speech using EMD
Moctezuma, Luis Alfredo; Molinas Cabrera, Maria Marta (Chapter, 2018)When brain activity ions, the potential for human capacities augmentation is promising. In this paper, EMD is used to decompose EEG signals during Imagined Speech in order to use it as a biometric marker for creating a ... -
Effect of non-ideal power take-off on the electric output power of a wave energy converter under suboptimal control
Pettersen, Martine F.; Fosso, Olav B; Garcia Rosa, Paula Bastos; Molinas Cabrera, Maria Marta (Chapter, 2021)This work investigates how the physical limitations and losses of an electric power takeoff (PTO) system affect the production of power for a wave energy converter (WEC) under suboptimal control strategies. The damping of ... -
Efficient Phasor Estimation under Steady State and Dynamic Conditions
Khodaparast Ghadikolaei, Jalal; Fosso, Olav B; Molinas Cabrera, Maria Marta (Peer reviewed, 2018)Phasor estimation has many application areas and has therefore attracted significant research focus. Classical phasor estimation proposed many years ago, considers the phasor to be time independent which means constant ... -
Electrical Machines and Power Electronics for Starter-Generators in More Electric Aircrafts: A Technology Review
Nøland, Jonas Kristiansen; Leandro, Matteo; Suul, Jon Are Wold; Molinas Cabrera, Maria Marta; Nilssen, Robert (Chapter, 2019)Safety-critical power conversion systems play a major role in the paradigm shift towards more electric aircraft (MEA) architectures. This paper reviews the electrical machines and their power electronic systems that are ... -
Electroencephalographic Source Localization based on Enhanced Empirical Mode Decomposition
Maximiliano, Bueno-López; Pablo Andrés, Muñoz-Gutiérrez; Eduardo, Giraldo; Molinas Cabrera, Maria Marta (Journal article; Peer reviewed, 2019) -
EMD Mode Mixing Separation of Signals with Close Spectral Proximity in Smart Grids
Fosso, Olav B; Molinas Cabrera, Maria Marta (Chapter, 2018)The Empirical Mode Decomposition (EMD) is a signal analysis method that separates multi-component signals into single oscillatory modes called intrinsic mode functions (IMFs). These IMFs can generally be associated to a ... -
EMD-Prony for Phasor Estimation in Harmonic and Noisy Condition
Khodaparast Ghadikolaei, Jalal; Fosso, Olav B; Molinas Cabrera, Maria Marta (Chapter, 2018)Wide area monitoring systems (WAMSs) enables the real-time monitoring of power system dynamics by bringing together new developments in the field of measurement, communication and computing. Measurements of voltage and ... -
Evaluation of wave-frequency motions extraction from dynamic positioning measurements using the empirical mode decomposition
Garcia Rosa, Paula Bastos; Brodtkorb, Astrid H.; Sørensen, Asgeir Johan; Molinas Cabrera, Maria Marta (Chapter, 2019)For dynamic positioning operations, high-frequency wave induced motions cause excessive control action, and consequently additional power consumption and wear of actuators in the propulsion system. Thus, such operations ... -
Event-related potential from EEG for a two-step Identity Authentication System
Moctezuma, Luis Alfredo; Molinas Cabrera, Maria Marta (Peer reviewed; Journal article, 2019)Current problems related to high-level security access are increasing, leaving organizations and persons unsafe. A recent good candidate to create a robust identity authentication system is based on brain signals recorded ... -
Exploring the Attributes of Particle Filter vs Nonlinear Kalman Filter for Battery State of Charge Estimation
Roaldsnes, Kristian Eggereide; Gjengedal, Ørjan; Molinas Cabrera, Maria Marta (Chapter, 2018)Accurately knowing the State of Charge (SoC) of a Lithium Ion Battery is critical for many applications, and various methods for determining it have been proposed. This paper examines the differences between the Central ... -
Exploring the Potential for Increased Production from the Wave Energy Converter Lifesaver by Reactive Control
Sjolte, Jonas; Sandvik, Christian Mclisky; Tedeschi, Elisabetta; Molinas Cabrera, Maria Marta (Journal article; Peer reviewed, 2013)Fred Olsen is currently testing their latest wave energy converter (WEC), Lifesaver, outside of Falmouth Bay in England, preparing it for commercial operation at the Wavehub test site. Previous studies, mostly focusing on ... -
Frequency Domain Modelling and Stability Analysis of a DFIG-based Wind Energy Conversion System Under None-compensated AC Grids: Impedance Modelling Effects and Consequences on Stability
Zhang, Chen; Molinas Cabrera, Maria Marta; Rygg, Atle; Cai, Xu (Journal article; Peer reviewed, 2019)Impedance-based frequency domain method is an effective tool for the stability assessment of a doubly-fed induction generator (DFIG) system. Several impedance models have been proposed recently, however, these models are ... -
Frequency Domain Modelling for Assessment of Hilbert and SOGI Based Single-Phase Synchronisation
Føyen, Sjur; Fosso, Olav B; Zhang, Chen; Molinas Cabrera, Maria Marta (Chapter, 2019)Two different single-phase synchronisation schemes based on orthogonal system generation (OSG) are modelled in the linear, time-periodic framework. The frequency adaptive Hilbert phase locked loop (PLL) and the frequency-fixed ...