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Optimisation Models and Methods in Energy Systems

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ISBN: 9783039211180 9783039211197 Year: Pages: 192 DOI: 10.3390/books978-3-03921-119-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:15
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Challenging problems arise in all segments of energy industries—generation, transmission, distribution and consumption. Optimization models and methods play a key role in offering decision/policy makers better information to assist them in making sounder decisions at different levels, ranging from operational to strategic planning.

Process Modelling and Simulation

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ISBN: 9783039214556 9783039214563 Year: Pages: 298 DOI: 10.3390/books978-3-03921-456-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:15
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Since process models are nowadays ubiquitous in many applications, the challenges and alternatives related to their development, validation, and efficient use have become more apparent. In addition, the massive amounts of both offline and online data available today open the door for new applications and solutions. However, transforming data into useful models and information in the context of the process industry or of bio-systems requires specific approaches and considerations such as new modelling methodologies incorporating the complex, stochastic, hybrid and distributed nature of many processes in particular. The same can be said about the tools and software environments used to describe, code, and solve such models for their further exploitation. Going well beyond mere simulation tools, these advanced tools offer a software suite built around the models, facilitating tasks such as experiment design, parameter estimation, model initialization, validation, analysis, size reduction, discretization, optimization, distributed computation, co-simulation, etc. This Special Issue collects novel developments in these topics in order to address the challenges brought by the use of models in their different facets, and to reflect state of the art developments in methods, tools and industrial applications.

Keywords

process model validation --- partial least square regression --- phytochemicals --- natural extracts --- wheat germ --- fluidized bed drying --- mathematical model --- moisture content --- condensation --- simulation --- Pharmaceutical Processes --- Mammalian Cell Culture --- sensitivity analysis --- parameter estimation --- Design of Experiments --- algebraic modeling language --- dynamic optimization --- model predictive control --- moving horizon estimation --- fluid bed granulation --- heat and mass balance --- population balance model --- binder dissolution --- kernel development --- robust optimization --- uncertainty --- point estimation method --- equality constraints --- parameter correlation --- barley --- simulation --- hydration --- swelling --- cooking --- porridge --- extents --- graph theory --- model identification --- observability --- optimal clustering --- parameter estimation --- state decoupling --- data-mining --- machine learning --- neural networks --- chemistry --- materials --- engineering --- energy --- grey-box model --- machine learning --- SOS programming --- process modeling --- scrap dissolution --- scrap melting --- thermodynamics --- kinetics --- dynamic converter modelling --- Combined Heat and Power --- gray-box model --- utility management --- CHP legislation --- optimization --- polyacrylonitrile-based carbon fiber --- coagulation bath --- dry-jet wet spinning process --- computational fluid dynamics --- wave resonance --- maximum wave amplitude --- reactor coolant pump --- vane --- costing stopping --- mathematical model --- idling test --- n/a

Control and Nonlinear Dynamics on Energy Conversion Systems

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ISBN: 9783039211104 9783039211111 Year: Pages: 438 DOI: 10.3390/books978-3-03921-111-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-08-28 11:21:27
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The ever-increasing need for higher efficiency, smaller size, and lower cost make the analysis, understanding, and design of energy conversion systems extremely important, interesting, and even imperative. One of the most neglected features in the study of such systems is the effect of the inherent nonlinearities on the stability of the system. Due to these nonlinearities, these devices may exhibit undesirable and complex dynamics, which are the focus of many researchers. Even though a lot of research has taken place in this area during the last 20 years, it is still an active research topic for mainstream power engineers. This research has demonstrated that these systems can become unstable with a direct result in increased losses, extra subharmonics, and even uncontrollability/unobservability. The detailed study of these systems can help in the design of smaller, lighter, and less expensive converters that are particularly important in emerging areas of research like electric vehicles, smart grids, renewable energy sources, and others. The aim of this Special Issue is to cover control and nonlinear aspects of instabilities in different energy conversion systems: theoretical, analysis modelling, and practical solutions for such emerging applications. In this Special Issue, we present novel research works in different areas of the control and nonlinear dynamics of energy conversion systems.

Keywords

data-driven --- prediction --- neural network --- air-handling unit (AHU) --- supply air temperature --- pulverizing system --- soft sensor --- inferential control --- moving horizon estimation --- multi-model predictive control --- micro-grid --- droop control --- virtual impedance --- harmonic suppression --- power quality --- combined heat and power unit --- two-stage bypass --- dynamic model --- coordinated control system --- predictive control --- decoupling control --- power conversion --- model–plant mismatches --- disturbance observer --- performance recovery --- offset-free --- electrical machine --- electromagnetic vibration --- multiphysics --- rotor dynamics --- air gap eccentricity --- calculation method --- magnetic saturation --- corrugated pipe --- whistling noise --- Helmholtz number --- excited modes --- switched reluctance generator --- capacitance current pulse train control --- voltage ripple --- capacitance current --- feedback coefficient --- distributed architecture --- maximum power point tracking --- sliding mode control --- overvoltage --- permanent magnet synchronous motor (PMSM) --- single artificial neuron goal representation heuristic dynamic programming (SAN-GrHDP) --- single artificial neuron (SAN) --- reinforcement learning (RL) --- goal representation heuristic dynamic programming (GrHDP) --- adaptive dynamic programming (ADP) --- sliding mode observer (SMO) --- permanent magnet synchronous motor (PMSM) --- extended back electromotive force (EEMF) --- position sensorless --- bridgeless converter --- discontinuous conduction mode (DCM) --- high step-up voltage gain --- power factor correction (PFC) --- space mechanism --- multi-clearance --- nonlinear dynamic model --- planetary gears --- vibration characteristics --- new step-up converter --- ultrahigh voltage conversion ratio --- small-signal model --- average-current mode control --- slope compensation --- monodromy matrix --- current mode control --- boost-flyback converter --- explosion-magnetic generator --- plasma accelerator --- current-pulse formation --- DC-DC buck converter --- contraction analysis --- global stability --- matrix norm --- DC micro grid --- efficiency optimization --- variable bus voltage MG --- variable switching frequency DC-DC converters --- centralized vs. decentralized control --- local vs. global optimization --- buck converter --- DC motor --- bifurcations in control parameter --- sliding control --- zero average dynamics --- fixed-point inducting control --- DC-DC converters --- quadratic boost --- maximum power point tracking (MPPT) --- nonlinear dynamics --- subharmonic oscillations --- photovoltaic (PV) --- steel catenary riser --- rigid body rotation --- wave --- the load of suspension point in the z direction --- Cable3D

Methods and Concepts for Designing and Validating Smart Grid Systems

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ISBN: 9783039216482 9783039216499 Year: Pages: 408 DOI: 10.3390/books978-3-03921-649-9 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 16:10:12
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Energy efficiency and low-carbon technologies are key contributors to curtailing the emission of greenhouse gases that continue to cause global warming. The efforts to reduce greenhouse gas emissions also strongly affect electrical power systems. Renewable sources, storage systems, and flexible loads provide new system controls, but power system operators and utilities have to deal with their fluctuating nature, limited storage capabilities, and typically higher infrastructure complexity with a growing number of heterogeneous components. In addition to the technological change of new components, the liberalization of energy markets and new regulatory rules bring contextual change that necessitates the restructuring of the design and operation of future energy systems. Sophisticated component design methods, intelligent information and communication architectures, automation and control concepts, new and advanced markets, as well as proper standards are necessary in order to manage the higher complexity of such intelligent power systems that form smart grids. Due to the considerably higher complexity of such cyber-physical energy systems, constituting the power system, automation, protection, information and communication technology (ICT), and system services, it is expected that the design and validation of smart-grid configurations will play a major role in future technology and system developments. However, an integrated approach for the design and evaluation of smart-grid configurations incorporating these diverse constituent parts remains evasive. The currently available validation approaches focus mainly on component-oriented methods. In order to guarantee a sustainable, affordable, and secure supply of electricity through the transition to a future smart grid with considerably higher complexity and innovation, new design, validation, and testing methods appropriate for cyber-physical systems are required. Therefore, this book summarizes recent research results and developments related to the design and validation of smart grid systems.

Keywords

adaptive control --- fuzzy logic --- cell --- frequency containment control (FCC) --- power frequency characteristic --- droop control --- smart grids --- substation automation system (SAS) --- high-availability seamless redundancy (HSR) --- seamless communications --- traffic reduction technique --- Power Hardware-in-the-Loop (PHIL) --- interface algorithm (IA) --- operational range of PHIL --- linear/switching amplifier --- cyber-physical energy system --- co-simulation --- conceptual structuration --- coupling method --- linear decision rules --- optimal reserve allocation --- robust optimization --- web of cells --- demand response --- real-time balancing market --- elastic demand bids --- shiftable loads --- market design --- market design elements --- Web-of-Cells --- procurement scheme --- remuneration scheme --- pricing scheme --- cascading procurement --- real-time simulation --- hardware-in-the-Loop --- synchrophasors --- micro-synchrophasors --- distribution phasor measurement units --- distribution grid --- time synchronization --- PHIL (power hardware in the loop) --- simulation initialization --- synchronization --- time delay --- synchronous power system --- stability --- accuracy --- peer-to-peer --- distributed control --- device-to-device communication --- voltage control --- experimentation --- smart grid --- cyber physical co-simulation --- information and communication technology --- 4G Long Term Evolution—LTE --- network reconfiguration --- fault management --- power loss allocation --- plug-in electric vehicle --- smart grid --- locational marginal prices --- microgrid --- resilience --- investment --- underground cabling --- network outage --- battery energy storage system (BESS) --- micro combined heat and power (micro-CHP) --- electricity distribution --- solar photovoltaics (PV) --- islanded operation --- distributed control --- microgrid --- hardware-in-the-loop --- average consensus --- multi-agent system --- active distribution network --- laboratory testbed --- renewable energy sources --- DC link --- centralised control --- interoperability --- smart energy systems --- use cases --- IEC 62559 --- SGAM --- TOGAF --- integration profiles --- IHE --- testing --- gazelle --- connectathon --- Hardware-in-the-Loop --- Software-in-the-Loop --- Power-Hardware-in-the-Loop --- Quasi-Dynamic Power-Hardware-in-the-Loop --- smart grids --- real-time simulation --- validation and testing --- decentralised energy system --- smart grids control strategies --- smart grid --- wind power --- synchronized measurements --- PMU --- data mining --- Architecture --- Development --- Enterprise Architecture Management --- Model-Based Software Engineering --- Smart Grid --- Smart Grid Architecture Model --- System-of-Systems --- Validation --- design, development and implementation methods for smart grid technologies --- modelling and simulation of smart grid systems --- co-simulation-based assessment methods --- validation techniques for innovative smart grid solutions --- real-time simulation and hardware-in-the-loop experiments

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MDPI - Multidisciplinary Digital Publishing Institute (4)


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CC by-nc-nd (4)


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english (4)


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2019 (4)