This paper proposes the enhancement of control a grid-connected inverter by simplified virtual synchronous compensator (S-VSC) model working in parallel with traditional current loops. The goal integration this into scheme is to provide grid services, such as inertia behavior, harmonic compensation, well reactive support during faults. S-VSC only charge providing aforementioned working, therefore, always at low power level. On other hand, main references are sent directly way, more stable...

As a consequence of the exponential growth electric vehicle (EV) market, DC fast-charging infrastructure is being rapidly deployed all around world. Ultra-fast charging (UFC) stations are starting to pose serious challenges power system operation, mostly due their high peak demand and unregulated discontinuous operation. To address these issues, local energy storage can be installed, ensuring smoother grid absorption profile allowing provide grid-supporting features. In this work, control...

The <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LLC</i> resonant converter is typically adopted in battery charging applications due to its excellent performance terms of efficiency, power density, and wide input/output voltage regulation. However, this a complex high-order system characterized by strong nonlinear behavior, featuring large variations the small-signal gain/phase pole location depending on operating point. Consequently,...

The purpose of this study was to investigate the amplitude properties artifact generated on recorded surface electromyography (EMG) signals during transcutaneous electrical muscle stimulation. factors which were investigated are shape stimulation waveform, distance stimulating electrode from recording system, interelectrode detection spatial filter used for signal detection, and current amplitude. Surface EMG biceps brachii motor point with a linear adhesive array eight electrodes....

Many industrial applications are recently utilizing the advantages of a common dc-bus-based multiple-drive (multidrive) system, such as low installation cost, space savings well improved reliability, and flexibility. One main drawbacks systems is requirement for bulky dc capacitor due to presence large dc-link current ripples from harmonic interaction between these multidrive pulsewidth modulation (PWM) switching. This problem not only increases cost volume capacitors but also decreases its...

Traditional power systems based on synchronous generators often feature low frequency electromechanical oscillations. However, the integration of renewable energy sources through converters can help tackling this issue. In fact, thanks to concept virtual machine (VSM), it is possible make inverters behave as real machines (SMs). This way, be integrated into grid traditional SMs and even outperform them when comes damping oscillations in system. To do that, proper algorithms must adopted VSM...

State-of-the-art ultra-fast battery chargers for electric vehicles simultaneously require high efficiency and power density, leading to a challenging converter design. In particular, the grid-side filter, which ensures sinusoidal current absorption with low pulse-width modulation (PWM) harmonic content, can be major contributor overall size losses. Therefore, this paper proposes complete analysis, design optimization procedure of three-phase LCL filter modular DC fast charger. First, an...

The main requirements of magnetic components for power electronics applications are high density and low losses, driven by the need more compact efficient converters. Metal powder materials a common choice high-power high-frequency inductors subject to large field bias, since they feature saturation flux permeability (i.e., "distributed" air gap), allowing adoption un-gapped cores. Despite this, under values magnetomotive force deep core saturation), insertion concentrated gap can lead...

This paper proposes an iterative design procedure for a high-power LLC resonant converter, taking part in 60 kW modular DC/DC conversion stage electric vehicle (EV) ultra-fast battery charger. The basics of operation the converter are briefly recalled and most relevant analytical expressions reported. Due to requirement wide output voltage range (i.e. 250-1000 V), approach is adopted, leveraging split input DC-link structure provided by 3-level active front-end. A total four modules, with at...

Among the multiphase solutions, multi-three-phase drives are becoming more and widespread in practice as they can be modularly supplied by conventional three-phase inverters. The literature reports several control approaches to perform torque regulation of machines. Most such solutions use vector space decomposition (VSD) approach since it allows a machine using schemes drives, thus reducing complexity algorithm. However, this advantage is practically lost case open-three-phase faults....

The recent advancements of power electronics are encouraging the development multiphase drives in both transport electrification and energy production applications. Among solutions, "multi-three-phase" gaining impressive attention from industry since they can be configured as multiple three-phase units operating parallel. In this way, technologies used, leading to a significant reduction costs design time. Although multi-three-phase possess natural modularity terms machine winding converter,...

The rapid development of electric vehicle ultra-fast battery chargers is increasingly demanding higher efficiency and power density. In particular, a proper control the grid-connected active front–end can ensure minimum passive component size (i.e., limiting design oversizing) reduce overall converter losses. Moreover, fast dynamics strong disturbance rejection capability are often required by subsequent DC/DC stage, which may act as fast-varying and/or unbalanced load. Therefore, this paper...

In electric naval applications, battery storage management plays a key role. The second-life use is fundamental part of the sustainable development these waterborne transport systems. article deals with perspective and solutions systems from ship traction area. This paper presents an overview topic use, application, future direction special focus on propulsion ships. particular, modular converter-battery approach in system structure arrangement considered. applications target SEABAT project....

In this article, a three-leg interleaved boost Power Factor Corrector (IBPFC) converter for energy-efficient LED lighting systems connected to the main grid was discussed. This IBPFC circuit presented features 60 kHz of commutation frequency and up 3 kW power rating. The controlled rectifier front-end PFC supplied DC/DC drive LEDs suitable street or system stadium, etc. operated in continuous current mode (CCM). ripple impact analyzed novel methodology inductance design presented. proposed...

In modern power electronics-based systems, accurate modeling is necessary in order to analyze stability and the interaction between different elements, which are connected it. State space seems a valid approach study modes of certain system their correlation with its states. Unfortunately, this may require complicated calculations it difficult model advanced or emerging control techniques for grid-tied converters, such as cascaded controllers (e.g., voltage current) virtual synchronous...

The continuous development of electrical machines and power electronic converters is increasingly demanding for higher efficiency targets, especially in those application fields where a limited amount stored energy available (e.g., electric mobility). Notably, modern inverter-fed variable speed drives (VSDs) integrated on-board battery chargers (iOBCs), the machine losses induced by pulse-width modulation (PWM) can represent relevant component overall system loss are gathering increasing...

This paper deals with the dead time selection in Gallium Nitride (GaN) FET based three-phase brushless DC motor drives. The GaN wide-bandgap (WBG) technology enables increase of switching frequency compared silicon MOSFET. In inverter applications, it is necessary to insert a signals, avoid cross conduction leg. compromise between and quality output waveforms. FETs can operate times range tens ns. this advantages reduction terms waveforms distortion speed ripple MOSFET are carried out....

Thanks to the improvements in power electronics, a higher integration of renewable energy sources into electric grid using converters is possible. Virtual Synchronous Generators (VSGs) seem be valid control solution for grid-tied inverters, guaranteeing not only virtual inertia features, but also several services, such as reactive support during faults and current harmonics compensation. This paper deals with damping mechanical part VSG models damper winding q-axis. A comparison made between...

The recent years have seen exponential growth in electric generation from renewable energy sources (RESs), such as wind and sun. This scenario represents an opportunity to decarbonize part of the sector phase out fossil fuels. However, particular care must be taken ensure correct operation grid. With a large penetration power electronics-based generation, special case grid faults, due limited short-circuit current capabilities static converters, supporting faults. For this reason, converters...

Work-related upper extremity disorders as epycondylitis and tendonitis are closely related to localized muscle fatigue of extensor forearm muscles. The aim this work is evaluate levels activity, interactions between the main muscles wrist. Surface EMG signals were acquired from carpi radialis (ECR), digitorum comunis (EDC) ulnaris (ECU) during isometric contractions using linear electrode array technique. Parameters such fiber conduction velocity (CV), average rectified value (ARV) frequency...

This paper deals with the design, tuning and implementation of a digital controller for an all-Si electric vehicle (EV) on-board battery charger operated in discontinuous conduction mode (DCM). consists two cascaded conversion stages: front-end power factor corrector (PFC) interleaved legs isolated phase-shifted full bridge DC/DC converter. Both stages operate DCM over complete charging range, allowing lower inductance values both PFC filtering elements. Moreover, operation ensures large...

Transportation electrification is leading to an impressive development of electric drives (eDrives) using either synchronous- (SM) or induction- (IM) motors. However, these eDrive solutions need high-performance torque controllers that must be easy tune and able deal with saturated machines. Besides, the regulation linear for entire operating speed range, including deep flux-weakening (FW) operation maximum per volt (MTPV) limitation. According current state-of-the-art, traction applications...