Presents the table of contents for this issue of this publication.

Provides a listing of current staff, committee members and society officers.

Because of our past and current associate editors for the IEEE Journal of Emerging and Selected Topics in Power Electronics (JESTPE), the JESTPE has become an influential publication in the power electronics field. Their work is very important in producing the JESTPE, even though they are unknown or unheard of until an article they recommend for publication appears in an issue. The tasks of associate

Safe and reliable operation is always a crucial consideration in many important applications of power electronics. Nowadays, the working conditions or mission profiles of power electronics components/systems are becoming intensive and complicated. In order to ensure cost-effectiveness with more confidence in the safety and reliability performances, it is important to understand the loading and failure

Advertisement, IEEE.

Provides a listing of current committee members and society officers.

Presents the table of contents for this issue of the publication.

Presents a listing of the editorial board, board of governors, current staff, committee members, and/or society editors for this issue of the publication.

One defining component that has turned the Journal of Emerging and Selected Topics in Power Electronics (JESTPE) into a predominant publication in the field of power electronics is our past and current associate editors. Although they are largely unknown until papers they have recommended for publication are published, the JESTPE’s associate editors perform a duty that is of extreme importance to produce

As the concept of DC power and energy delivery, whether it is applied to microgrids, distribution, facilities, or transportation systems, is increasingly applied, protection is a paramount concern. There is an increasing number of applications where DC distribution is not only a benefit but a necessary means of building up the electrical system. These applications cover the range of voltages, low voltage

Advertisement.

Advertisement.

Provides a listing of current committee members and society officers.

For the dc-link busbar in a high-capacity converter, the large-size laminated busbar is not adoptable due to the machining difficulty and limitation in current capability. In contrast, the regular nonlaminated busbar solution guarantees the required power capacity with a lower cost and easier installation. The main challenges exist in the large stray inductance and corresponding resonance phenomenon

A Defining component that has made the IEEE Journal of Emerging and Selected Topics in Power Electronics (JESTPE) a predominant publication in the field of power electronics is our past and current associate editors. Although our associate editors are largely unknown and unheard until a paper they recommend for publication appears in print, their work is of extreme importance in producing the IEEE

DC microgrids have higher efficiency, better current carrying capacity, and faster response compared to the conventional ac systems. They also provide more natural interface with many types of renewable energy resources (RERs) and energy storage systems (ESSs), as well as better compliance with consumer electronics. These facts lead to increased applications of dc microgrid-type power architectures

This article presents a novel resonant-linear hybrid converter for a radio frequency (RF) power amplifier (PA). The proposed topology consists of a push–pull resonant inverter and a voltage-controlled linear amplifier at the output port. The push–pull resonant inverter consists of two single-ended Class $\Phi 2$ inverters, and the voltage-controlled linear amplifier controls the output voltage to track

Silicon carbide (SiC) gate turn-off (GTO) thyristor is attractive for grid applications due to the excellent performances of high blocking voltage and low ON-resistance. However, the short-circuit reliability issue has become one of the limiting factors. An in situ condition monitoring method for the reliability of SiC GTO is presented in this work. It uses the forward $I$ – $V$ characteristics of

In terms of low-voltage (<1.5 kV) and high-power (>10 kW) industry applications, power converters without any flying capacitors are preferred to ensure high efficiency, high power density, and light weight. As for these requirements, this article proposes a four-level hybrid neutral point clamped (4L-HNPC) converter and a four-level hybrid active neutral point clamped (4L-HANPC) converter. Compared

Dynamic wireless power transfer (DWPT) systems are developed as a solution to electric vehicle (EV) range limitations and battery size requirements. DWPT systems require careful consideration relative to dynamic variations in coupling for power flow control. With continued advances in development of different types of couplers, compensation, and converter topologies, the stability of control systems

This article proposed a predictive flux control strategy for permanent magnet synchronous machines based on flux trajectory optimization. Instead of minimizing the instantaneous flux tracking error at the end of each sampling period, the effect of different control sets on flux trajectories within the entire sampling interval is taken into account in the cost function. As a result, steady-state torque

In this paper, a proper duty cycle control method is proposed to reduce torque and flux ripples and harmonic loss in direct torque control (DTC) of six-phase induction machine (6PIM). Three different methods are proposed to improve the performance of switching table DTC for 6PIM. First, by the suitable selection of two vectors in each sampling period, the harmonic amplitude is significantly decreased

Clamp mode resistor capacitor diode (CMRCD) snubbers have a simple and easy implementing structure. They have been widely adopted in the pulsed power supplies to provide a safe operating condition for the series insulated gate bipolar transistors (IGBTs). The main problem of the CMRCD snubbers is their poor performance in the voltage balancing of the series IGBTs. They are essentially overvoltage protectors

Insulated gate bipolar transistor (IGBT) modules are the most critical components of modular multilevel converters (MMCs). However, they are subjected to repetitive thermo-mechanical stress caused by thermal cycles on different materials, which can easily lead to failures in the solder layers. Moreover, when MMCs work at high power factor, the IGBT modules have severely uneven temperature distribution

A mustard seed planted years ago Sprouts and continues to grow.

Efficient power converters capable of changing their output voltage at very high speeds (submicrosecond scale) are mandatory for very fast response (VFR) applications. They are necessary to regulate loads that demand very fast voltage changes and to supply high-frequency-pulsed loads for data processing, communication, and portable equipment. VFR converters likewise become necessary for applications

This article investigates a novel approach to the integration of multilayer, thin film magnetics embedded in printed circuit board (PCB) for Power Supply in a Package (PwrSip) applications. A solenoid inductor structure is formed by sandwiching a multilayer CZTB magnetic sheet between two distinct PCBs with copper tracks on each which form the upper and lower windings of the device. A solder reflow

The increased switching frequency and speed of silicon carbide (SiC) MOSFETs lead to higher power density of inverters, but meanwhile resulting in weak electromagnetic interference (EMI). The impedance balance technique is a good way to reduce the common mode (CM) noise by making the voltage across the line impedance stabilization network (LISN) as small as possible. However, a side effect of this

DC microgrid systems (DCMGs) feed power to constant power loads (CPLs) via transmission lines. Although these systems are commonly used worldwide, CPLs have negative impedance effects. These loads can significantly degrade the system stability. Therefore, stability study is very important to avoid inefficient operations. The model proposed in this article can be derived using a combination of the direct

Multimodule isolated converters incorporating excellent features of galvanic isolation, bidirectional power flow, and simple control are widely adopted in medium-voltage (MV) high-power dc–dc applications. However, the converter size and dc-link capacitor voltage balancing are significant concerns in galvanically isolated cascaded dc–dc converters. This article proposes a new design of an integrated

DC microgrids can be considered as cyber-physical systems (CPSs) and they are vulnerable to cyberattacks. Therefore, it is highly recommended to have effective plans to detect and remove cyberattacks in dc microgrids. This article shows how artificial neural networks can help to detect and mitigate coordinated false data injection attacks (FDIAs) on current measurements as a type of cyberattacks in

The principle of permanent magnet synchronous motor (PMSM) torque control could be seen as driving the stator flux linkage vector to chase a rotating reference by the voltage vectors. An increase in the magnitude of the stator flux linkage vector limits the ability of the voltage vector to vary the torque angle and the torque. In most control strategies, simultaneously increasing that magnitude and

To push the synchronous reluctance machine toward higher power densities to meet the requirement of automotive applications, a double-rotor (DR) synchronous reluctance topology has been thoroughly analyzed, designed, and investigated by means of finite-element analysis. This work shows the pros and cons of the double-sided configuration with respect to the single-sided stator structures. The design

Transformerless inverters (TIs) are widely used in grid-connected photovoltaic (PV) applications due to their higher efficiency and low cost. However, the absence of galvanic isolation leads to the flow of ground leakage current due to PV parasitics resulting in safety issues and deteriorated power quality. This article proposes a single-phase five-level TI topology with switched diodes and floating

Accurate estimation of the state of health (SOH) of batteries is essential for maximizing the lifetime of the battery and improving the safety and economy of any energy storage system. Data-driven methods can use measurement data to effectively estimate the SOH, but the estimation performance depends on the relevance between the selected feature and SOH. In this article, fuzzy entropy (FE) of battery

Power electronics systems have become increasingly vulnerable to cyber–physical threats due to their growing penetration in the Internet-of-Things (IoT)-enabled applications, including connected electric vehicles (EVs). In response to this emerging need, a cyber–physical-security initiative was recently launched by the IEEE Power Electronics Society (PELS). With increasing connectivity due to vehicle-to-everything

This letter proposes a nonlinear mathematical model for a zero-current-switching (ZCS) pulse width modulation (PWM) Buck converter and obtains the approximate analytical solutions of state variables using the equivalent small parameter method (ESPM). First, the operating modes of the converter are analyzed, and the equivalent circuit model together with a unified nonlinear mathematical description

This article investigates the problem of fault detection and reconstruction in direct current microgrids (dc MGs) with nonlinear loads. First, a state-space representation of the dc MG with nonlinear constant power loads (CPLs) is obtained. The faults in components, actuators, and sensors in a dc MG system are modeled by using additive terms in the state-space and measurement equations. A novel robust

This article analyzes the requirements for load balancing of a new transformer-less grid-interface topology for large-scale electric vehicle (EV) charging infrastructures. The proposed configuration utilizes a modular multilevel converter (MMC) to supply wireless EV chargers from each module. The inherent galvanic isolation provided by wireless inductive power transfer and the scalability of the MMC

In this work, we propose a high-quality control solution for islanded microgrids with multiparallel power converters; it uses a full state-variable direct model predictive control (FSV-DMPC) and has a simple structure. Unlike the conventional cascaded control loops, the proposed FSV-DMPC solution tracks the optimal reference generated by a robust droop loop using a unified cost function. This proposal

Current optimization methods for medium-frequency transformers (MFTs) within power electronic converters yield unrealistic results in the multiphysics framework. Comparing the optimal design to an experimental setup for a 3.5-kW MFT, the core loss is underestimated by 28%, which results in the experimental steady-state temperatures being 10 °C greater than the analytically optimized model. To counteract

This article proposes the partially signed binary voltage control (PSBVC) method for a hybrid modular multilevel converter (MMC) (HMMC), which has a mixture of half-bridge submodules (SMs) (HB-SMs) and full-bridge SMs (FB-SMs). With the proposed PSBVC method, the HMMC can generate a large number of voltage levels with much fewer SMs than the MMC and enhanced MMC (EMMC) by having different voltages

This article presents a nonconventional approach to a multicoil wireless power transfer system based on a Z-source network. The novelty of the approach lies in the use of a Z-source as a voltage source for energy transmission through the wireless power transfer coils. The main advantage is in a reduced number of semiconductors. This article provides the design approach, simulation, and experimental

There are multiscale coupling relationships during the operation of dc/dc converters, where the macroscale is the overall working principle of the circuit and the microscale is the device mechanism model of the circuit components. Modeling only at the macroscale cannot reflect the effect of the device’s internal effects on the circuit, while modeling the device at the microscale cannot show the operating

High-voltage dc power supplies (HVDCPSs) have been widely adopted for the vacuum tubes. In this application field, the low ripple voltage cannot be easily achieved by increasing the size of the output capacitance of the HVDCPS due to the limited permissible level of the stored energy. To obtain a low level of the output ripple as well as the limited value of the stored energy, the previously published

In this article, a novel torque boundary-based model predictive torque control (MPTC) is proposed to improve the torque and flux performance in permanent magnet synchronous motor (PMSM) drives by straightforwardly reducing the corresponding ripples. For this purpose, an optimal sequential list of two voltage vectors is considered as candidate input and the time durations of the two vectors to be applied

This article establishes an enhanced sliding-mode observer (SMO) with current measurement error compensators for the speed and position estimation in the permanent-magnet synchronous machine (PMSM) sensorless drive scheme. First, hyperbolic tangent switching function-based SMO with a self-adjusted shape coefficient is realized using a fuzzy logic controller (FLC) to not only eliminate the low-pass

In this article, a decentralized photovoltaic (PV)–battery energy storage (BES) coordination control method for Plug-n-Play (PnP) dc microgrid (MG) is proposed. With the proposed control method, PV units can operate under dc bus voltage control when BES units are saturated due to state-of-charge (SoC) limit or charging/discharging power limit. The mode transition and power sharing are based on a communication-less

This article proposed a single-phase active neutral point clamped seven-level (SANPC-7L) inverter topology with only eight power switches and three dc-link capacitors. Compared with the existing single-phase seven-level inverters, the quantity of power switches and voltage stresses across them are both reduced. Modulation logic expression of every switch is derived based on the Karnaugh map technique

Velocity saturation characteristics of a V-doped 6H silicon-carbide (SiC) photoconductive switch under high electric field are presented. A vertical-geometry switch device based on vanadium-compensated SiC is triggered by a 532-nm laser pulse with light peak power of several hundred kW and operational voltages from 2 to 20 kV. The maximum electrical peak power achieved by the device is up to 1 MW (~50-A

The switching frequency of power electronic devices has become much higher than before, which brings great challenges to real-time simulators. The small time step in high switching frequency simulations remarkably increases the difficulty to satisfy the real-time requirement. This article realizes the accurate real-time simulation of a solid-state transformer (SST) with a switching frequency of 50

The concept of long-range microwave power transmission (MPT) has been driven by the desire to remotely power satellites, drones, or some mobile facilities. The advantage of long-range MPT is power transmission over a long distance without the need to deploy a wired power network. However, the overall efficiency, robustness, directional radiation (DR), and so on are still issues that limit the application

Modular multilevel converter (MMC) may contain a large number of submodules (SMs). The overall reliability of MMC strongly relies on the comprehensive testing and validation of SMs. However, building a relatively complete MMC system/arm for the testing of SMs is time-consuming and costly. In this article, mission profile emulator (MPE) for individual SM of MMC is presented along with the design and

This article proposes hybrid selective harmonic mitigation (SHM)-pulsewidth modulation (PWM) that is characterized by both features harmonic mitigation and elimination aimed to reduce the common-mode voltage (CMV) and to mitigate the selected nontriplen harmonics in a three-phase neutral-point-clamped (NPC) inverter. As CMV harmonic modeling only shows triplens, the specified triplens are eliminated

In a three-phase three-wire ( $3\Phi 3\text{W}$ ) converter, the average common-mode voltage between the neutral point of its ac source and the dc-source positive or negative rail over one switching cycle can be proved to be an arbitrary value. Therefore, $3\Phi 3\text{W}$ LCL (a filter that is composed of inductors, capacitors, and inductors) converters can be decoupled and controlled phase by phase

Zero-phase-angle (ZPA) operation is considered as a method to minimize the volt-ampere (VA) ratings and maximize transfer power to the load in the inductive power transfer (IPT) system. However, the ZPA operating prerequisite is quite sensitive to the variation of parameters such as IPT system coupling coefficient and load conditions. A parallel–series/series (PS/S) current-fed IPT system with a new

Nowadays, emerging microgrids have been forming fully integrated power and energy systems using multi-infeed ac/dc (MIACDC) power architectures. An MIACDC power architecture easily integrates renewables, battery energy storage systems, fossil-fuel-based generating units, and various types of loads into one coherent microgrid. Therefore, in modernized microgrids (MMGs), time constants (or equivalently

Recent technologies associated with solar photovoltaic (PV) systems tend to depend mostly on irradiance. In a PV array, the distribution of irradiance is unequal varying from module to module under partial shading (PS) conditions. Because of the PS of the PV array; the number of peaks in power–voltage ( $P$ – $V$ ) characteristics increases. In such cases, it would be difficult to track the highest

Asymmetric cascaded H-bridge (ACHB) trinary inverter has several advantages, such as high efficiency due to high power main H-bridge modulated under a fundamental low frequency, optimal modulation due to nonredundant output voltage levels, and reduction in output filter sizes due to high-quality staircase output waveform. However, ACHB inverter requires prestage isolated dc sources for the individual

The Editorial Board of the IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS (JESTPE) owes a depth of gratitude and appreciation to the authors who got their papers published in the 2019 editions. After an intensely competitive review of nominated papers by the members of the Editorial Board and some Associate Editors, it is a pleasure to announce the winners of the best papers among