Browsing NTNU Open by Author "Zadeh, Mehdi"
Now showing items 1-20 of 55
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AI-enabled Decision-making for Sustainable and Autonomous Ship Power Systems Control and Operation
Araujo Artigas, Enrique Fernando (Master thesis, 2023)Målet med dette studie var å lage en metodikk for å forbedre effektiviteten til et hybrid marinefartøys systemkonfigurasjon og operasjonsstrategi, samtidig som den nødvendige funksjonaliteten opprettholdes. Dette ble oppnådd ... -
An Optimization of Energy Management System for a Hybrid Power System
Lee, Juyoung (Master thesis, 2022)This master thesis aims to conduct energy management system (EMS) optimization to minimize the total cost of a zero-emission vessel with a hybrid power system. As the International Maritime Organisation (IMO) agreed to ... -
Co-Simulation of a Marine Hybrid Power System for Real-Time Virtual Testing
Ghimire, Pramod; Zadeh, Mehdi; Pedersen, Eilif (Chapter, 2021)Co-simulation enhances the efficient simulation development even for complex systems reducing time to market and computational effort. This work aims to develop a marine hybrid power system simulator using a co-simulation ... -
Comparative study of energy efficiency and cost optimization in low-emission marine power systems with alternative fuels
Sletten, Petter Solem; Zadeh, Mehdi (Chapter, 2021)Marine hybrid power systems fed by so-called "alternative fuels" are key enablers to reducing greenhouse gas emissions from ship propulsion and reaching international targets, particularly for large vessels. In this paper, ... -
Control and Power Management of Shipboard DC Hybrid Power System
Kwon, Kiyoune (Master thesis, 2019)Utviklingen av marine integrerte kraftanlegg har åpnet for fullelektriske skip med elektriske fremdriftssystemer som drives av dieselgeneratorer. Videre har fartøy med DC hybrid-strømkilder som brenselcelle, superkondensator ... -
Data-Driven Efficiency Modeling and Analysis of All-Electric Ship Powertrain; A Comparison of Power System Architectures
Zadeh, Mehdi; Thorstensen, Jarle; Pedersen, Eilif (Peer reviewed; Journal article, 2021)In this paper, a data-driven dynamic efficiency model is developed for efficiency evaluation and comparison of ship electric powertrain with various system configurations and load-sharing methods. Based on the proposed ... -
DC-DC Converter Control for Peak-Shaving in Shipboard DC Power System via Hybrid Control
Park, Daeseong; Zadeh, Mehdi; Skjetne, Roger (Chapter, 2020)For the stable operation of the shipboard hybrid DC power systems, the DC bus voltage should be controlled within the recommended range by the regulations. However, the challenge comes from the load variations, and it makes ... -
Design of sustainable integrated energy systems for green ports – selection and sizing
Polic, Drazen; Melloh, Tobias; Malhotra, Avichal; Zadeh, Mehdi; Dunger, Torsten (Peer reviewed; Journal article, 2024)Design of sustainable and integrated energy systems for marine port is a complex problem, involving multiple conflicting objectives like energy efficiency and minimum losses, cost-effectiveness, and avoiding excessive ... -
Digital Twin Modelling of Ship Power and Propulsion Systems: Application of the Open Simulation Platform (OSP)
Perabo, Florian; Park, Daeseong; Zadeh, Mehdi; Smogeli, Øyvind Rasmussen; Jamt, Levi (Peer reviewed; Journal article, 2020)Today, modelling and simulation technologies are extensively used in the maritime industry. As a reaction to changing market demands and environmental challenges, maritime systems are becoming more complex and coupled. ... -
Dynamic Efficiency Modeling of a Marine DC Hybrid Power System
Ghimire, Pramod; Zadeh, Mehdi; Pedersen, Eilif; Thorstensen, Jarle (Chapter, 2021)With the share of high-power electronic converters, the emerging marine DC hybrid power systems have been increasingly attractive for ship designers because of their higher operational flexibility. The system efficiency ... -
Dynamic Modeling and Real-Time Simulation of a Ship Hybrid Power System Using a Mixed-Modeling Approach
Ghimire, Pramod; Reddy, Namireddy Praveen; Zadeh, Mehdi; Pedersen, Eilif; Thorstensen, Jarle (Journal article, 2020)The electrification of a ship power-train is growing at a fast pace to improve efficiency and reduce emissions. The implementation of new technologies requires test and validation using various modeling approaches. However, ... -
Dynamic Modeling and Validation of a Fuel Cell-Based Hybrid Power System for Zero-Emission Marine Propulsion: An Equivalent Circuit Model Approach
Shakeri, Nastaran; Zadeh, Mehdi (Journal article; Peer reviewed, 2023)This article proposes a dynamic modeling approach for fuel cell (FC)-based hybrid power systems based on equivalent circuit models. The proposed model framework represents the electrical and electrochemical properties of ... -
Dynamic modeling, simulation, and testing of a marine DC hybrid power system
Ghimire, Pramod; Zadeh, Mehdi; Pedersen, Eilif; Thorstensen, Jarle (Peer reviewed; Journal article, 2020)The hybridization of power systems offers the low-emission and energy-efficient marine vessels. However, it increases the complexity of the power system. Design, analysis, control, and optimization of such a sophisticated ... -
Dynamic Modeling, Stability Analysis and Power Management of Shipboard DC Hybrid Power Systems
Park, Daeseong; Zadeh, Mehdi (Journal article; Peer reviewed, 2021)This paper proposes a framework for the stability analysis and control testing of marine hybrid power systems with DC power architecture. The dynamics of such active systems are increasingly influenced by interactive modes ... -
Dynamic Modelling of Fuel Cell Systems for Electric Propulsion
Shakeri, Nastaran; Zadeh, Mehdi (Chapter, 2021)In this paper, a dynamic model is developed for hybrid electric powertrains with fuel cell and batteries. The hybrid powertrain is considered mainly for marine propulsion with dynamic load, although the study can be ... -
Economic Control Design for Hybrid Electric Ships
Stokke, Øyvind (Master thesis, 2020)Ei av dei store globale utfordringane vi står overfor er miljøendringar, med aukande temperaturar og meir ekstremvêr. Den maritime industrien er ein stor bidragsytar til verdas utslepp, med omkring3%av både dei årlege ... -
Efficiency Estimation of Synchronous Generators for Marine Applications and Verification With Shop Trial Data and Real Ship Operation Data
Kifune, Hiroyasu; Zadeh, Mehdi; Sasaki, Hidetsugu (Journal article; Peer reviewed, 2020)Three methods were explored to estimate the efficiency for the conversion of mechanical power to electrical power using synchronous generators in ships at low power factors. Generally, the generator efficiency data is ... -
Electrification and Emission Reduction for Aquaculture Vessels; Case Study of a Wellboat
Aadland, Svein (Master thesis, 2021)Verden står ovenfor betydelige klimaendringer som en av vår tids største utfordringer. Klimaendringer har gitt et økt fokus på å redusere verdens klimagassutslipp og er også på toppen av FNs agenda. Skipsfartsindustrien ... -
Electromagnetic Oscillation Origin Location in Multiple-Inverter-Based Power Systems Using Components Impedance Frequency Responses
Zhou, Weihua; Torres Olguin, Raymundo E.; Zadeh, Mehdi; Bahrani, Behrooz; Wang, Yanbo; Chen, Zhe (Peer reviewed; Journal article, 2021)Existing impedance-based stability criterion (IBSC) for electromagnetic stability assessment of multiple-grid-connected-inverter (GCI)-based power systems suffers from several limitations. First, global stability feature ... -
Energy Storage System as Auxiliaries of Internal Combustion Engines in Hybrid Electric Ships
Nam, Seungwan; Park, Daeseong; Zadeh, Mehdi (Chapter, 2020)This paper presents a design concept to overview the feasibility of utilizing modern energy storage systems as substitution of conventional machinery auxiliaries, which are necessarily installed to support internal combustion ...