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Optimal Operation of Battery Storage for a Subscribed Capacity-Based Power Tariff Prosumer—A Norwegian Case Study
(Journal article; Peer reviewed, 2019)The cost of peak power for end-users subject to a demand charge may be substantial, expecting to increase further with the vast growth of power-demanding devices. In cases where load-shifting is not a viable option for ... -
Optimal Operation of Hydro-Dominated Power Systems with Environmental Constraints
(Chapter, 2022)This paper studies the operation of a small renewable and hydro-dominated power system when introducing environmental constraints. The risk of rationing and the local price formation is investigated using a stochastic, ... -
Optimal Operation with Changing Active Constraint Regions using Classical Advanced Control
(Journal article; Peer reviewed, 2018)With ”classical advanced control” we mean the control structures that are commonly used in industry for multivariable control. These have been in use for at least 50 years, but surprisingly there is little literature ... -
Optimal partitioning of smart distribution systems into supply-sufficient microgrids
(Journal article; Peer reviewed, 2018)This paper presents a systematic procedure for partitioning smart distribution systems into supply-sufficient microgrids. Firstly, renewable distributed generations (DGs) are optimally allocated in the distribution system. ... -
Optimal Path of a UAV Engaged in Wind-influenced Circular Towing
(Chapter; Peer reviewed, 2017)This paper considers the dynamic optimization of the planned path for an Unmanned Aerial Vehicle (UAV) engaged in circular towing of a cable-body system, such that the motion of the towed endmass is stabilized with minimum ... -
Optimal PI and PID control of first-order plus delay processes and evaluation of the original and improved SIMC rules
(Journal article; Peer reviewed, 2018)The first-order plus delay process model with parameters k (gain), τ (time constant) and θ (delay) is the most used representation of process dynamics. This paper has three objectives. First, we derive optimal PI- and ... -
Optimal planning of an urban ferry service operated with zero emission technology
(Peer reviewed; Journal article, 2023)While passenger-only ferries can be an effective instrument in mitigating road congestion in urban areas, they are among the most polluting modes of transportation. This paper studies technical and economic feasibilities ... -
Optimal Positioning of Snake Robots in Vortex Wakes using Extremum-Seeking Control.
(Peer reviewed; Journal article, 2023)In this paper we explore the optimal positioning of an underwater snake robot (USR) for energy harvesting in the wake of a bluff body. The USR and fluid are simulated jointly using a coupled vortex particle-mesh method and ... -
Optimal Power Flow Analysis in Power Dispatch for Distribution Networks
(Journal article; Peer reviewed, 2018)This paper presents two applications of Optimal Power Flow analysis for active and reactive power redispatch in medium-voltage distribution networks and shows how this tool can be used to efficiently manage the selection ... -
Optimal power flow based coordinated reactive and active power control to mitigate voltage violations in smart inverter enriched distribution network
(Journal article; Peer reviewed, 2023) -
Optimal power flow-based reactive power control in smart distribution network using real-time cyber-physical co-simulation framework
(Peer reviewed; Journal article, 2023)Future distribution networks (DN) are subject to rapid load changes and high penetration of variable distributed energy resources (DER). Due to this, the DN operators face several operational challenges, especially voltage ... -
Optimal preventive policies for parallel systems using Markov decision process: application to an offshore power plant
(Journal article; Peer reviewed, 2023)This work proposes a Markov Decision Process (MDP) model for identifying windows of opportunities to perform preventive maintenance for multi-unit parallel systems subject to a varying demand. The main contribution lies ... -
Optimal price-based scheduling of a pumped-storage hydropower plant considering environmental constraints
(Journal article; Peer reviewed, 2023)The paper proposes a novel medium-term scheduling model for a hydropower system composed by a pumped storage hydropower plant connected to a traditional hydropower plant subject to three types of environmental constraints; ... -
Optimal Pricing of Production Changes in Cascaded River Systems with Limited Storage
(Chapter, 2019)Optimization of hydroelectric power production is often executed for river systems consisting of several powerplants and reservoirs located in the same region. For hydropower stations located along the same river, the ... -
Optimal production and maintenance scheduling for a multiproduct batch plant considering degradation
(Peer reviewed; Journal article, 2020)Performance decay due to asset degradation is an important constraint in industrial production and therefore needs to be actively considered. This paper focuses on short-term scheduling for multiproduct batch processes ... -
Optimal Quadrature for univariate and tensor product splines
(Journal article; Peer reviewed, 2016)Numerical integration is a core subroutine in many engineering applications, including the finite element method (FEM). Isogeometric analysis is a FEM technology that uses smooth B-spline and NURBS basis functions. ... -
Optimal recovery of a radiating source with multiple frequencies along one line
(Peer reviewed; Journal article, 2020)We study an inverse problem where an unknown radiating source is observed with collimated detectors along a single line and the medium has a known attenuation. The research is motivated by applications in SPECT and beam ... -
Optimal recovery of thermal energy in liquid air energy storage
(Peer reviewed; Journal article, 2021)The increasing share of renewables in energy systems requires energy storage technologies to handle intermittent energy sources and varying energy sinks. Liquid air energy storage (LAES) is a promising technology since it ... -
Optimal release time determination using FMOCCP involving randomized cost budget for FSDE-based software reliability growth model
(Peer reviewed; Journal article, 2019)This paper presents a software reliability growth model (SRGM) based on a fuzzy stochastic differential equation (FSDE) approach. The software shall comprise of dependent and independent main and sub-components owing to a ... -
Optimal reliability growth program for repairable and warranted products
(Chapter, 2019)Considering a two-dimensional and non-renewing free repair warranty (NFRW) policy, this paper proposes a modified reliability growth model to support the decision making of the manufacturer on the choice of a reliability ...