This paper evaluates the capability of SiC power semiconductor devices, in particular JFET and Schottky barrier diodes (SBD) for application high-temperature electronics. JFETs SBDs were packaged high temperature packages to measure dc characteristics these devices at ambient temperatures ranging from 25degC (room temperature) up 450degC. The results show that both can operate 450degC, which is impossible conventional Si expense significant derating. current SBD does not change with...

The design of DC-DC converters for power electronic interfaces in management systems hybrid electric vehicle (HEV) is a very challenging task. To this end, paper presents an analysis, design, and comparison study several bi-directional non-isolated converter topologies that could be considered potential candidates the interface HEV energy/power sources, particular ultracapacitor pack. are half-bridge, Cuk, SEPIC, Luo converters. analysis performed throughout equations stresses active passive...

A switching control strategy to extend the soft-switching operating range of dual active bridge (DAB) dc-dc converter under zero-voltage-switching (ZVS) mode is proposed. The topology consists two bridges linked by a high-frequency transformer. One drawback this that only possible in restricted region. novel pulse width modulation conventional region and its analysis are presented paper. Experimental results given order validate theoretical practical feasibility proposed strategy.

Hybrid and electric vehicles (HEV, EV) require some form of energy storage in order to achieve load leveling or efficiently manage power flows, mainly when accelerating decelerating. Traditionally, batteries have been used but recently ultracapacitors become potential candidates for HEV/EV applications. To this end, paper first presents a methodology determining whether an unit (ESU) should consist only batteries, combination both. An example illustrates the feasibility proposed ideas....

The Internet of Things (IoT) has led the way to smarter and ultimately more efficient cyberphysical systems (CPSs). An example such a CPS includes motor drives connected computer network controlling industrial processes. Another is recent European Union regulation that may enable utility customers become energy suppliers-i.e., formation transactive (TE) or local area networks (E-LANs) formed by integrated smart nodes cooperating accomplish system goals.

Solar-plus-storage systems could effectively mitigate the uncertainties of photovoltaic (PV) generation and improve system reliability by adding an integrated battery energy storage system. As a three-port bidirectional isolated dc–dc converter with soft-switching capability, triple-active-bridge (TAB) inherently matches requirements solar-plus-storage However, challenges still remain in TAB design to further efficiency. In this article, detailed design, implementation, demonstration for...

Distributed energy resources (DERs) are becoming integral components of electric power distribution systems. In most cases, an isolated DC-DC converter forms part the interface required to connect DER output system. Operation at high switching frequencies results in size reduction passive expense increased losses. However, silicon carbide (SiC) devices have potential operating without significant loss penalty because their fast times and ability work temperatures when compared similar Si...

Photovoltaic (PV) penetration levels in the power grid have significantly increased during last years. However, issues such as cloud-induced intermittency PV generation forces equipment on electrical to cycle excessively, preventing from being considered a reliable or dispatchable source of power, particularly by utilities. A semi-Markov process model is proposed power. Unlike existing models has wide range applicability across both small and large timescales. These applications include...

The use of environmentally clean photovoltaic (PV) dispersed generation will become more widespread in the future due to anticipated cost reductions PV technology. This paper summarizes results a power quality (PQ) study performed on generator order estimate effects that inverter-interfaced might have upon electric power. Different interpretations harmonic distortion limits set IEEE 519-1992 standard are together with comparison BC Hydro's current limits. also includes statistical analysis...

This paper extends a design methodology for combined battery-ultracapacitor energy storage unit (BU-ESU) vehicle power management into two areas. First, the model of half-bridge converter replaces generic models dc/dc converters used in BU-ESU. is capable determining electric stresses present on active and passive components during operation vehicle. Second, an improved BU-ESU control strategy applicable to all operating conditions determined. resize Finally, fuel consumptions achieved when...

This paper presents a theoretical analysis for canceling common-mode (CM) voltages induction motor (IM) drives using CM transformer with active circuitry. The design methodology and the practical implementation are presented rated 460 V or higher. To verify approach, an example experimental results 460-V drive system presented.

Among current research issues of dc microgrids, short-circuit protection is very challenging because the high rate rise for fault currents. Slow-acting electromechanical circuit breakers lead to system overdimensioning resulting in additional costs. Circuit based on power semiconductor devices have potential fast interruption Unfortunately, energy stored parasitic inductors or inductive components overvoltage across solid-state breaker (SSCB). Metal oxide varistor (MOV), snubber circuits and...

This paper describes the implementation of a flexible laboratory test bench for developing electric vehicle (EV) and hybrid (HEV) powertrains in university environment. The bench, which is implemented using relatively low-cost off-the-shelf products, capable serving broad variety purposes ranging from design propulsion motor drives to hardware-in-the-loop (HIL) powertrain control strategies. illustrates capabilities by (a) simulating Jeep Commander II, fuel cell sport utility (SUV)...

Electrolytic capacitors are normally used as the energy storage element in DC link of voltage-source converters because their high density. Unfortunately, they bulky and lifetime is significantly reduced by operating temperatures. Thus, reducing, or even better eliminating, amount electrolytic an important goal since capacitor could be a single point failure. This paper analyses induction motor (IM) drive whose front end consists controlled rectifier. The latter controls DC-link voltage...

A set of standstill measurements that allow time-domain identification linear model parameters for direct and quadrature axes a synchronous machine is proposed. The advantages this method over conventional frequency response testing include the simplicity test equipment, higher current levels achieved, speed with which can be obtained, fact models are obtained directly in parametric form (in per-unit or measured units). proposed illustrated by results on 3 kVA, 220 V microalternator.< <ETX...

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> Multilevel dc–dc converters making use of high-frequency transformers are suitable for integration in solid-state solutions applications electric power distribution systems. This paper presents a simplified switching scheme three-level full-bridge that enables zero-voltage and zero-current all the main devices. It describes operational modes design equations converter as well provides simulation...

Distributed energy resources (DER) are becoming increasingly common on the electrical grid. Depending operating conditions of DER, which depend application, different topologies need to be selected in order achieve maximum efficiency each DER. Complicating selection is fact that vary over time. For example, voltage and current drawn from a PV panel varies course day. To calculate overall efficiency, topology at point amount time spent must considered. This work extends existing analytical...

Multiple topologies of solid-state transformers (SST) were proposed for locomotive traction systems, and more recently, electric power distribution systems because advantages such as reduced volume weight, functionalities not always possible with traditional fundamental-frequency transformers. The main goal this paper is to evaluate selected SST based on dual-active bridge (DAB) converters well a new topology boost in order establish their suitability emerging applications systems....

Energy storage (ES) is increasing used in electrical transmission and distribution systems because it can perform many functions. These include peak shaving, voltage regulation, frequency spinning reserve, aiding integration of renewable generation by mitigating the effects intermittency. This work focuses on usage energy for shaving regulation a system having high penetration photovoltaic (PV) generation. The PV stations considered make use smart inverters as proposed Electric Power...

In a world with an increasing penetration of widebandgap (WBG) semiconductor technology, the FEPPCON 2015 Session on New Power Devices and High Temperature focused power-semiconductor devices passive components (magnetic dielectric materials) up through integration, for purpose refining appropriate power-electronics converters by 2025. An important goal was to identify those markets applications where silicon technology will remain preferred choice. The semiconductors are rarely predominant...

This paper presents the challenges and results of fabricating a high temperature silicon carbide based integrated power module. The gate driver for module was into package is rated an ambient 250degC. tested up to 300 V bus voltage, 160 A peak current, 250degC junction temperature.

The growing interest in integrating distributed generation into the existing power distribution grid, increase penetration levels of renewables, as well need to achieve a more efficient, reliable, and sustainable grid is leading development new grid-interfaced converters such solid-state transformer (SST). As current voltage ratings commercially available semiconductor devices are normally below required systems (e.g., 13.8 kVrms), multiple modules must be connected cascade configuration at...

The work presented in this paper focuses on the design of a half-bridge DC-DC converter for power electronics interface energy-storage units fuel-cell sport utility vehicle. Several options are explored; namely: single stage vs. multiple interleaved stages, and continuous discontinuous conduction mode. These weighed against goals minimum cost, high efficiency at low output levels, volume weight to allow integration. Special emphasis is given impact that wide input voltage requirements (i.e.,...