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Machine elements --- Motorcars engineering --- elektrische aandrijvingen --- DC-DC omzetters --- aandrijvingen

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Samenvatting:Provides a systematic, practical treatment of DC/DC converters, fromtheir classical roots to the state of the art" Contains information on the latest techniques including voltage-lift,super-lift, and the new cascade prototypes" Introduces more than 100 topologies developed by the authors" Illustrates EMI/EMC reduction and various DC voltage sources" Presents theory and applications using hundreds of figures,discussions, and examplesDC/DC conversion techniques have undergone rapid development in recentdecades. With the pioneering work of authors Fang Lin Luo and Hong Ye,DC/DC converters have now been sorted into their six generations, and bya rough count, over 500 different topologies currently exist, with morebeing developed each year.Advanced DC/DC Converters offers a concise, practical presentation ofDC/DC converters, summarizing the spectrum of conversion technologies andpresenting many new ideas and more than 100 new topologies. The treatmentbegins with background material on DC/DC conversion and discussions onvoltage lift and super-lift converters. It then proceeds through eachgeneration, including the groundbreaking sixth generation--convertersdeveloped by the authors that can be cascaded for high voltage transfergain.More than 320 figures, 60 tables, and 500 formulae allow you to moreeasily grasp the overall structure of advanced DC/DC converters, providefast access to precise data, and help you quickly determine the values ofyour own circuit components. Nowhere else in the literature are DC/DCconverters so logically sorted and systematically introduced. Nowhereelse can you find detailed information on prototype topologies thatrepresent a major contribution to modern power engineering.

621.316.52 --- DC/ DC conversie --- DC/DC omzetting --- conversie --- elektronica --- elektrotechniek --- vermogenelektronica --- Elektronische voedingen. --- Gelijkstroom-gelijkstroom omvormers. --- Omzetters. --- DC-to-DC converters --- Direct current to direct current converters --- Electric current converters

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CE+T Power is a Belgian company and a leading producer of modular inverters and modular UPS. Founded in 1934, CE+T Power has been specializing in power electronics since the 1960's and they invented the modular inverter in the end of the 1980’s. They provide power solutions to enterprises to secure their critical applications against power failures. Therefore, CE+T is always progressing in the field of power electronics by offering the best modular inverters. A DC/DC converter is a building block of an inverter. So, a high-performance DC/DC converter is necessary for their products. 

The main objective of this work is two-fold. The first objective is to study a DC/DC converter topology known as Multi Resonant Interleaved Boost Converter and to evaluate its performance and behaviour. The second objective is to utilize the knowledge gained and implement it to optimize a prototype of DC/DC converter called as `CE+T E-Once 350VA DC/DC Converter'.

First the `CE+T E-Once 350VA DC/DC Converter' is tested and its various characteristics such as ripple current, ZCS behaviour of active switches, voltage gain and stability are evaluated. Then the potential improvements are identified. To achieve the improvements, a list of required hardware and software changes is established. The modifications are introduced in the circuit, one at a time and various tests are carried out to validate the modifications introduced. Once, all the necessary changes are done, the new version of the converter is called `Optimized Multi Resonant Interleaved Boost Converter'.

In comparison to the `CE+T E-Once 350VA DC/DC Converter', the `Optimized Multi Resonant Interleaved Boost Converter' has lower input ripple current, lower voltage stress across the MOSFET switches, lower current peaks in the MOSFET's drain current and lower energy circulating in the resonant tank; all of which led to reduced losses and better efficiency. 

This project consisted of theoretical research as well as hands-on experience with DC/DC converters. Various concepts such as zero-current switching and resonant converters were studied and implemented in practical.

DC/DC converter --- resonant converter --- ZCS for MOSFET --- inverse coupled inductor --- Ingénierie, informatique & technologie > Ingénierie électrique & électronique

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Nowadays, power electronics is an enabling technology in the energy development scenario. Furthermore, power electronics is strictly linked with several fields of technological growth, such as consumer electronics, IT and communications, electrical networks, utilities, industrial drives and robotics, and transportation and automotive sectors. Moreover, the widespread use of power electronics enables cost savings and minimization of losses in several technology applications required for sustainable economic growth. The topologies of DC–DC power converters and switching converters are under continuous development and deserve special attention to highlight the advantages and disadvantages for use increasingly oriented towards green and sustainable development. DC–DC converter topologies are developed in consideration of higher efficiency, reliable control switching strategies, and fault-tolerant configurations. Several types of switching converter topologies are involved in isolated DC–DC converter and nonisolated DC–DC converter solutions operating in hard-switching and soft-switching conditions. Switching converters have applications in a broad range of areas in both low and high power densities. The articles presented in the Special Issue titled "Advanced DC-DC Power Converters and Switching Converters" consolidate the work on the investigation of the switching converter topology considering the technological advances offered by innovative wide-bandgap devices and performance optimization methods in control strategies used.

History of engineering & technology --- interleaved operation --- three-winding coupled inductor --- high step-up DC–DC converter --- DC/DC converter --- multi-input-port --- bidirectional --- energy storage --- three-phase bidirectional isolated DC-DC converter --- burst-mode switching --- high-frequency transformer configurations --- phase-shift modulation --- intermittent switching --- three-phase dual-active bridge --- bidirectional converter --- high efficiency --- GaN --- SiC --- buck-boost converter --- high switching frequency --- electric vehicle (EV) --- fast charging --- interleaved dc–dc converter --- SiC devices --- Si devices --- Component Connection Method --- power electronics-based systems --- stability analysis --- state-space methods --- virtual synchronous generators --- DC-DC converters --- photovoltaics --- single-diode model --- state-space --- multi-port dual-active bridge (DAB) converter --- wide-band-gap (WBG) semiconductors --- silicon carbide (SiC) MOSFETs --- power converter --- automotive --- battery charger --- circuit modelling --- power electronics --- SiC MOSFET --- interleaved operation --- three-winding coupled inductor --- high step-up DC–DC converter --- DC/DC converter --- multi-input-port --- bidirectional --- energy storage --- three-phase bidirectional isolated DC-DC converter --- burst-mode switching --- high-frequency transformer configurations --- phase-shift modulation --- intermittent switching --- three-phase dual-active bridge --- bidirectional converter --- high efficiency --- GaN --- SiC --- buck-boost converter --- high switching frequency --- electric vehicle (EV) --- fast charging --- interleaved dc–dc converter --- SiC devices --- Si devices --- Component Connection Method --- power electronics-based systems --- stability analysis --- state-space methods --- virtual synchronous generators --- DC-DC converters --- photovoltaics --- single-diode model --- state-space --- multi-port dual-active bridge (DAB) converter --- wide-band-gap (WBG) semiconductors --- silicon carbide (SiC) MOSFETs --- power converter --- automotive --- battery charger --- circuit modelling --- power electronics --- SiC MOSFET

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Nowadays, renewable energy sources take a larger share in energy production. Power electronics converters are extensively used to optimize energy yield, and interface those renewable energy sources with the electrical grid. As such, industries tend to develop more and more complex controllers for power electronics converters, and there is a need for tools to validate controller design in real-life conditions before implementation. \

This thesis focuses on one emulation technique called “hardware-in-the-loop” (HIL). HIL devices can be used to simulate the dynamics of power electronics converters in real-time, thanks to their extensive computational capabilities. They can also interface hardware devices with models developed on software. This is especially useful if one wants to validate the design of a controller, once it is deported on a hardware device, to identify any possible implementation issues. \

The thesis is divided into two parts. The first part highlights the advantages of the HIL technique for validation of controller design. A model of a battery charger is designed, and the switching operations are performed by a controller. The controller is either simulated in the same environment as the battery charger, or deported on a real control board interfaced with the battery charger emulation. The second part highlights the advantages of the HIL technique for the simulation of power electronics converters and demonstrates the reliability of HIL simulation.
Therefore, measurements from a real converter from CE+T power products, are compared with HIL simulation data. In order to perform the simulation, the real converter is modeled inside the Typhoon HIL software and the control board of the real converter is interfaced with the HIL device. \

Finally, the comparison results are discussed and the potential of HIL for future work is evoked.

Power Converter --- HIL --- Hardware in the loop --- Simulation --- Emulation --- DC/DC --- Digital-twin --- Typhoon HIL --- Power electronics --- Ingénierie, informatique & technologie > Ingénierie électrique & électronique