12-pulse buck rectifier and partial power processing based converter for ultra-high power EV charging

With the rapid development of electrical vehicles (EV) and the trends in transportation electrification, the demand for fast charging facilities for electric vehicles is rising. <br/> <br/>In this thesis, a two-stage power electronics converter for DC fast battery charging application is designed and studied. A buck type 12-pulse converter with...

Investigation of Pulse current capabilities of IGBTs and MOSFETs

TU Delft and KEMA laboratories are collaborating to create a Programmable high voltage test source by employing Modular Multilevel Converter MMC which can generate output voltage waveforms of any arbitrary shape. To produce an Impulse waveform of magnitude 250 kV across a capacitive load of 10 nF with a rise time of 1.2 µs as output voltage,...

Hardware-in-loop Emulation of a Solar Array Fed Water Pumping System

Solar array fed water pumping system is a good approach for water management and agriculture purpose. PV panels highly depend on unpredictable environmental conditions, as a result, the development of a PV system is with more technical challenges. System-level simulation on a desktop computer has limitations, such as uncertain accuracy of the...

Design of an 11kW DC-DC Resonant Converter for EV Charging with a 150-1000V Output Voltage Range

The worldwide adoption of Electric Vehicles (EV) has gained momentum in recent years, with more than 30% of all EVs being sold last year. Additionally, a new trend of 800 V battery architectures has appeared to allow for faster charging than the now common 400 V architectures. Future proof charging topologies should, therefore, be able to...

Implementation of Control for MMC-Based Arbitrary Wave Shape Generator in the OPAL-RT Simulator

A High Voltage (HV) Modular Multilevel Converter (MMC) based Arbitrary Wave shape Generator (AWG) is to be designed for a final voltage of 100 kV with 67 submodules in each arm. They can be used to test unconventional stresses experienced by high voltage equipment. Before the realization of a full-scale prototype setup, it is necessary to...

Design of a Low-Profile Receiver of 3.3 KW wireless charger

The usage of physical space in an Electrical vehicle is a roadblock to achieving peak performance in wireless charging applications. Components like the receiver, onboard power electronics, etc. have to be arranged in such a way that challenges like bulkiness, power density, thermal management is handled to achieve maximum operating life of...

AC-AC Matrix Converter-based Grid-Side Power Converter for EV Wireless Charging

The need for efficient power transfer at lower cost is a common requisite for any power con­verter system. When considering the application of wireless power transfer for Electric Vehicle(EV) charging, higher efficiency and lower cost can be achieved by reducing the number of stages of the system at the grid side. This thesis explores the...

Microinverter for Residential PV Systems

Up to 5 kW PV installations microinverters are common alternatives for the typical string solar inverters. The main draw back of the technology is the slight higher initial cost, however, a more efficient energy generation can be achieved if one of the PV modules are operated optimally at the maximum power point. This work shows that converters...

Analysis of Power Redistributors for Low-Voltage Distribution Grids

The phenomenon of phase unbalance is prevalent in the low voltage distribution grid due to the presence of single-phase loads. The unbalance can cause issues such as capacity underutilisation, transformer losses and problems with induction motors. To ensure the reliability of the upstream grid, it is important to maintain balanced three-phase...

Belgian Rectifier: Analysis and Optimization of a Novel Three-Phase Boost-Type PFC Rectifier

This project investigates the newly proposed Belgian Rectifier, a novel three-phase boost power factor correction rectifier which is advantageous for AC-to-DC conversion in applications, such as, off-board and on-board chargers for electric vehicles. The Belgian rectifier can achieve very high levels of efficiency<br/>and power density, while...

A Dual Active Bridge DC-DC Converter for Automotive Applications: Design of a High Efficiency Bidirectional DAB Converter for the Lightyear One

In the past years electric cars have been rapidly taking market share in the automotive industry. Stimulated by their sustainable image and due to large investments in the charging infrastructure, the electric automobile has gained popularity in the field of research. Many papers are written on a variety of power converters inside the cars to...

Low Voltage AC-DC Converter Systems for Fast Charging Stations for Electric Vehicles

Fast charging technology has accelerated the growth of the electric vehicle(EV) market and attracted significant attention from the industry. Two-stage AC/DC converter system is one of the traditional fast-charging architectures consists of the front-end converter and back-end converter. Numerous researches have developed IGBT-based medium...

Digital Control of a Wireless Power Transfer System for Electrical Vehicles

Wireless power transfer (WPT) is becoming a popular choice for charging of batteries in various applications. Particularly, the increase in popularity of electrical vehicles (EVs) and the pursuit of user convenience for charging the batteries makes WPT an attractive solution. The usage of WPT in e-transportation is not straightforward because...

Dimensioning of Ultra-Compact and Efficiency Power Electronics Featuring Active Pulsating Power Buffer for On-board EV Chargers

The Electric Vehicle (EV) charging market is very dynamic. The so-called AC-type chargers can be found confined within the vehicle or on-board. This must be able to withstand the harsh environment with an ambient temperature of above 75℃. Therefore, compact and high-efficiency power electronics and implementing electrolytic-less capacitors in...

Control Strategy in Parallel AC-DC Re-configurable Links System

Recent studies have shown that energy distribution systems based on hybrid (or parallel)point-to-point AC and DC links are interesting solutions for capacity enhancement andon-line improvement of energy efficiency under specific operating conditions, particularlyfor high power, medium to high voltage levels and long-enough distances, e.g.&gt;5km...