Tasasähkövoimalaitoksen mallinnus Hardware-in-the-Loop ympäristöön

Ever increasing requirements for increased fuel efficiency and reduced emissions on board a ship has prompted designers to turn their interest towards a distribution system where the main energy carrier is DC instead of AC. A DC power plant offers significantly reduced fuel consumption and easier integration of an increasing number of DC based sources and consumers, but also requires a more complicated control system for smart operation of the power plant. Therefore, the role of testing these control systems becomes even more important than before. This work introduces a Hardware-in-the-Loop (HIL) simulation technique for modeling and simulating a DC power plant on board a ship. In HIL simulation technique, a control-loop is built by using components, of which some are real hardware and some are simulated. This thesis work explores the possibilities for using the HIL simulation technique to perform real-time system level tests for a DC power plant on board a ship. The interfaces required to connect the real hardware components to the HIL simulator, and that way to the software component models as required by the simulation, will be examined. These interfaces consist of fieldbus communication (IEC61850 and Modbus) and a combination of digital and analog input and output signals. The goal of the HIL model of this work, is to offer an environment where different control schemes of the DC power system and the operation of the upper level power management and energy management systems can be tested safely and in a controlled manner. This requires that at least the controllers in the generating units are modeled using real hardware. The rest of the system can be modeled using virtual component models in the HIL software. A HIL model for modeling and simulating a complete DC power plant will be proposed and finally, the possibility to expand the model to include larger systems with more hardware will be discussed.Kasvavat vaatimukset polttoaineen kulutuksen ja päästöjen vähentämiseksi on saanut suunnittelijat kääntämään katseensa kohti sähkönjakelujärjestelmää, jossa sähkön jakelu kuluttajille toteutuu tasavirtana vaihtovirran sijasta. Tasasähkövoimalaitos mahdollistaa huomattavasti pienemmän polttoaineen kulutuksen ja helpottaa erilaisten DC lähteiden ja kuluttajien integroimista sähköverkkoon, mutta vaatii myös monimutkaisemman ohjausjärjestelmän voimalaitoksen älykkäälle toiminnalle. Tästä syystä ohjausjärjestelmän testauksen merkitys kasvaa jopa entuudestaan. Tämä työ esittelee Hardware-in-the-Loop (HIL) simulointimenetelmän tasasähkövoimalaitoksen mallintamiseksi ja simuloimiseksi. HIL mallinnustavassa säätöpiiri muodostetaan komponenteista, joista osa ovat oikeita komponentteja ja osa virtuaalisesti mallinnettuja komponentteja. Tämä diplomityö tutkii HIL mallinnustavan mahdollisuuksia suorittaa reaaliaikaisia järjestelmätason kokeita laivan tasasähkövoimalaitoksesta. Rajapinnat, jotka vaaditaan oikeiden komponenttien ja HIL simulaattorin yhteen liittämiseen tutkitaan tässä työssä. Nämä rajapinnat koostuvat kenttäväyläkommunikaatiosta (IEC61850 ja Modbus) sekä digitaalisten ja analogisten signaalien yhdistelmästä. Tämän työn HIL mallin tavoitteena on tuottaa testiympäristö, jossa tasasähkövoimalaitoksen säätöjärjestelmät ja ylemmän tason tehonhallinnan ja energianhallinnan järjestelmät voidaan testata turvallisesti ja hallitusti. Tämä vaatii, että ainakin sähköä tuottavien yksiköiden ohjaimet mallinnetaan oikeina komponentteina. Loput järjestelmästä voidaan mallintaa virtuaalisina komponentteina HIL simulaattorin ohjelmistossa. Työssä ehdotetaan mahdollinen HIL malli, jolla voidaan mallintaa ja testata koko tasasähkövoimalaitos. Lopuksi keskustellaan vielä mahdollisuuksista laajentaa mallia koskemaan laajempaa järjestelmää, jossa on enemmän oikeita komponentteja kytketty säätöpiiriin

Application of Fieldbus Technology to Enable Enhanced Actuator Control of Automated Inspection for Offshore Structures

Due to extreme environmental loadings and aging conditions, maintaining structural integrity for offshore structures is critical to their safety. Non-destructive testing of risers plays a key role in identifying defects developing within the structure, allowing repair in a timely manner to mitigate against failures which cause damage to the environment and pose a hazard to human operators. However, in order to be cost effective the inspection must be carried out in situ, and this poses significant safety risks if undertaken manually. Therefore, enabled by advancements in automation and communication technologies, efforts are being made to deploy inspection systems using robotic platforms. This paper proposes a distributed networked communication system to meet the control requirements of a precision rotary scanner for inspection of underwater structures aimed at providing a robotic inspection system for structural integrity in an offshore environment. The system is configured around local control units, a fieldbus network, and a supervisory control system accounting for the environment conditions to provide enhanced control of actuators for automated inspection of offshore structures

Automation of Industrial Internship Program

Student Industrial Internship Program(SliP) has been introduced by Universiti Tecknologi Petronas(UTP) in order to expose students to working culture and also mingling theoretical studies in UTP with working experiences. Besides, objective of SliP is to produce wellrounded graduates who possess technical competence, lifetime learning capacity, critical thinking, communication and behavioral skills, business acumen, practical attitude and solution synthesis ability. There are five parties involved directly in the SliP who are: Student Industrial Internship Unit(SliU), UTP lecturers, host companies, plant supervisors (PS) and students

Automation of Industrial Internship Program

Student Industrial Internship Program(SliP) has been introduced by Universiti Tecknologi Petronas(UTP) in order to expose students to working culture and also mingling theoretical studies in UTP with working experiences. Besides, objective of SliP is to produce wellrounded graduates who possess technical competence, lifetime learning capacity, critical thinking, communication and behavioral skills, business acumen, practical attitude and solution synthesis ability. There are five parties involved directly in the SliP who are: Student Industrial Internship Unit(SliU), UTP lecturers, host companies, plant supervisors (PS) and students

Electroplating process plant automation and management using emerging automation and communications technologies

A thesis submitted in partial fulfilment of the requirements of the University of Wolverhampton for the degree of Doctor of Philosophy.The Electroplating (EP) process industry is currently facing some challenging process control problems in their production plant due to an insufficient level of automation being applied in the industry; the control is largely manual, and the monitoring of both plant and processes is ad hoc. The requirement for higher production volumes, tighter product tolerances, and the eagerness for better quality with lower cost are forcing the electroplating Companies to automate their processes and develop more responsive process and plant monitoring and control systems. Emerging Automation and communications technologies have now made it possible to effectively implement distributed control system (DCS) based control architecture with hybrid (wired/wireless) communication networks in the industry for achieving both process automation and plant management, offering various advantages such as for real-time process plant monitoring and control, plant visualization and provision of management information for control of production throughout the plant. Electroplating process industries comprising plants with numerous process stages and production operations will particularly benefit from implementing DCS where individual process stages and functions are distributed into computing nodes (i.e., control computers and smart devices) that are physically separated; and all the computing nodes are interconnected by advanced hybrid (wired/wireless) communications networks. The introduction of less expensive and more functional microprocessors has advanced the state of the art in distributed control system technology. This research aims to develop an integrated advanced process monitoring and plant management system for an electroplating industry using emerging automation and communications technologies.University of Wolverhampton and Leonardt Ltd

Satellite Networks: Architectures, Applications, and Technologies

Since global satellite networks are moving to the forefront in enhancing the national and global information infrastructures due to communication satellites' unique networking characteristics, a workshop was organized to assess the progress made to date and chart the future. This workshop provided the forum to assess the current state-of-the-art, identify key issues, and highlight the emerging trends in the next-generation architectures, data protocol development, communication interoperability, and applications. Presentations on overview, state-of-the-art in research, development, deployment and applications and future trends on satellite networks are assembled