Explanipedia

A Single-Phase Five-Level Switched-Capacitor Boost Inverter With Improving Voltage Gain Open

Duc-Tri Do, Trong Tue Vu, Minh‐Khai Nguyen, Vinh-Thanh Tran · 2025

In this paper, a new topology of single-phase five-level switched-capacitor boost inverter (5L-SCBI) is introduced to improve voltage gain in comparison with existing impedance-source inverters (ISIs). With switched-capacitor (SC) structur…

Novel Single-Stage Electrolytic Capacitor-Less Buck-Boost Inverter Open

Youn‐Ok Choi, Minh‐Khai Nguyen · 2024

Nowadays, single-phase, single-stage, buck-boost power inverters are mostly considered to be used for renewable energy source applications due to their wide range of capabilities. This article introduces a novel, single-phase, single-stage…

Code Generation and Conic Constraints for Model-Predictive Control on Microcontrollers with Conic-TinyMPC Open

Sam Schoedel, Minh‐Khai Nguyen, Elakhya Nedumaran, Brian Plancher, Zachary Manchester · 2024

Model-predictive control (MPC) is a powerful framework for controlling dynamic systems under constraints, but it remains challenging to deploy on resource-constrained platforms, especially for problems involving conic constraints. To addre…

Sliced Wasserstein with Random-Path Projecting Directions Open

Minh‐Khai Nguyen, Shujian Zhang, Tam Le, Nhat Ho · 2024

Slicing distribution selection has been used as an effective technique to improve the performance of parameter estimators based on minimizing sliced Wasserstein distance in applications. Previous works either utilize expensive optimization…

Open-Circuit Fault-Tolerant Method for Half-Bridge Switches of Three-Level Quasi-Switched Boost T-Type Inverter to Improve Voltage Gain Open

Duc-Tri Do, Minh‐Khai Nguyen, Vinh-Thanh Tran · 2024

The three-level quasi-switched boost T-type inverter (3L-qSBT2I) can feature buck-boost operating and shoot-through (ST) immunity with high voltage gain and low component voltage rating. In order to improve the reliability of 3L-qSBT2I, th…

An Isolated DC-DC Converter for 800 V Electric Vehicle With Wide Soft-Switching Range and Low Voltage Stress on Power Switches Open

Van-Cuong Bui, Minh‐Khai Nguyen, Truong‐Duy Duong, Dai-Van Vo, Young‐Cheol Lim , et al. · 2024

This paper proposes an isolated DC-DC converter to cope with 800 V input voltage and 48 V output voltage conditions of the auxiliary power module in the next generation 800 V electric vehicles. On the primary side, a split-capacitor struct…

A New Single Stage Common Ground Five-Switch Boosting Transformerless Inverter Open

Dai-Van Vo, Minh‐Khai Nguyen, Tan‐Tai Tran, Van-Cuong Bui, Young‐Cheol Lim , et al. · 2024

Transformerless inverters (TIs) are widely employed in photovoltaic (PV) applications due to their cost-effectiveness, compact size, low weight, and high efficiency. However, the absence of electrical isolation can result in ground leakage…

Highly-Reliable Switched-Boost Four-Leg Inverter With Leakage Current Suppression Open

Duc-Tri Do, Ngoc-Anh Truong, Minh‐Khai Nguyen, Truong‐Duy Duong · 2024

In this paper, a new switched-boost four-leg inverter is proposed to suppress the leakage current and provide high reliability. The proposed inverter provides full shoot-through immunity by replacing the active switch in the impedance-sour…

TinyMPC: Model-Predictive Control on Resource-Constrained Microcontrollers Open

Anoushka Alavilli, Minh‐Khai Nguyen, Sam Schoedel, Brian Plancher, Zachary Manchester · 2023

Model-predictive control (MPC) is a powerful tool for controlling highly dynamic robotic systems subject to complex constraints. However, MPC is computationally demanding, and is often impractical to implement on small, resource-constraine…

A Single-Stage Bimodal Transformerless Inverter with Common-Ground and Buck-Boost Features Open

Dai-Van Vo, Minh‐Khai Nguyen, Young‐Cheol Lim, Joon‐Ho Choi · 2023

This paper proposes a single-phase, single-stage common-ground inverter with a non-electrolytic capacitor and buck-boost ability. The proposed single-stage inverter is employed by a boost stage DC-DC converter and bimodal circuit, which ma…

A Novel Isolated DC–DC Converter for High Step-Down Applications Open

Van-Cuong Bui, Minh‐Khai Nguyen, Truong‐Duy Duong, Dai-Van Vo, Young‐Cheol Lim , et al. · 2023

This paper proposes a new isolated high step-down DC–DC converter based on the phase-shift full-bridge converter. The proposed converter has some properties very suitable for high step-down applications including a high step-down ratio, lo…

A Novel Three-Level Quasi-Switched Boost F-Type Inverter With High Voltage Gain and Self-Balanced Neutral-Point Voltage Open

Duc-Tri Do, Minh‐Khai Nguyen, Vinh-Thanh Tran · 2023

This paper introduces a new topology of three-level quasi-switched boost F-type inverter (3L-qSBFTI) to improve voltage gain compared to traditional impedance-source inverters (ISIs). This topology uses a switched-capacitor (SC) structure …

A New Topology of Single-Phase Common Ground Buck-Boost Inverter With Component Voltage Rating Reduction Open

Vinh-Thanh Tran, Minh‐Khai Nguyen, Duc-Tri Do, Youn‐Ok Choi · 2023

The combination of conventional front-end DC-DC converter and H-bridge inverter has been proposed with common-ground (CG) characteristic and voltage booting capability. However, it has drawback of low modulation index utilization which cau…

An DPWM for Active DC-Link Type Quasi-Z-Source Inverter to Reduce Component Voltage Rating Open

Duc-Tri Do, Vinh-Thanh Tran, Minh‐Khai Nguyen · 2022

The conventional DC-link type quasi-Z-source inverter has been known as a buck–boost inverter with a low component voltage rating. This paper proposes an active DC-link type quasi-Z-source inverter by adding one active switch and one diode…

Topology Review of Three-Phase Two-Level Transformerless Photovoltaic Inverters for Common-Mode Voltage Reduction Open

Truong‐Duy Duong, Minh‐Khai Nguyen, Tan‐Tai Tran, Dai-Van Vo, Young‐Cheol Lim , et al. · 2022

In grid-connected photovoltaic (PV) systems, a transformer is needed to achieve the galvanic isolation and voltage ratio transformations. Nevertheless, these traditional configurations of transformers increase the weight, size, and cost of…

A Novel Single-Stage Common-Ground Transformerless Buck–Boost Inverter Open

Dai-Van Vo, Minh‐Khai Nguyen, Truong‐Duy Duong, Tan‐Tai Tran, Young‐Cheol Lim , et al. · 2022

In this article, a novel single-stage transformerless buck–boost inverter is introduced. The proposed inverter can share a common ground between the DC input side and the grid; this leads to having a zero-leakage current. The proposed inve…

Space Vector Modulation Method-Based Common Mode Voltage Reduction for Active Impedance-Source T-Type Inverter Open

Vinh-Thanh Tran, Minh‐Khai Nguyen, Duc-Tri Do, Youn‐Ok Choi · 2022

In recent years, many pulse width modulation techniques have been explored for three-level impedance-source inverters. Among them, a space vector modulation (SVM) technique using upper/lower shoot-through (UST/LST) insertion provides high …

Modulation Technique for Modified Active Quasi-Z-Source Inverter with Common-Mode Voltage Reduction Open

Minh‐Khai Nguyen, Youn‐Ok Choi · 2021

In Z-source topologies, a high-amplitude common-mode voltage can occur when shoot-through states are inserted. In this study, a new space vector pulse-width modulation for an active quasi-Z-source topology is proposed to operate at a high …

Grid-Connected and Isolated Renewable Energy Systems Open

Xiaoqiang Guo, Minh‐Khai Nguyen, Mariusz Malinowski, Elisabetta Tedeschi · 2021

With the rapid progression of renewable energies into grids, grid-connected systems are increasing dramatically around the world [...]

Transformer-Less Switched-Capacitor Quasi-Switched Boost DC-DC Converter Open

Truong‐Duy Duong, Minh‐Khai Nguyen, Tan‐Tai Tran, Young‐Cheol Lim, Joon‐Ho Choi · 2021

In this article, a quasi-switched boost converter based on the switched-capacitor technique with high step-up voltage capability is dealt with and analyzed. The proposed converter offers a simple structure and low voltage stress on the sem…

Topological Review of Quasi-Switched Boost Inverters Open

JG Nataraj Barath, A Soundarrajan, Serhii Stepenko, Oleksandr Husev, Dmitri Vinnikov , et al. · 2021

This paper presents a comprehensive review based on the features and drawbacks of the quasi-switched boost inverter (qSBI) topologies. The qSBI derived configurations are well suitable for low power applications due to their reduced number…

Three-Phase Impedance-Source Inverter With Common-Mode Voltage Reduction Open

Truong‐Duy Duong, Minh‐Khai Nguyen, Tan‐Tai Tran, Dai-Van Vo, Young‐Cheol Lim , et al. · 2021

This article presents a three-phase two-level impedance-source inverter to decrease the magnitude of common-mode voltage and enhance the output voltage capability. Shoot-through states are inserted into zero states to ensure for boosting v…

Power Converters in Power Electronics Open

Minh‐Khai Nguyen · 2020

In recent years, power converters have played an important role in power electronics technology for different applications, such as renewable energy systems, electric vehicles, pulsed power generation, and biomedical sciences. Power conver…

Power Converters in Power Electronics: Current Research Trends Open

Minh‐Khai Nguyen · 2020

In recent years, power converters have played an important role in power electronics technology for different applications, such as renewable energy systems, electric vehicles, pulsed power generation, and biomedical [...]

Common Mode Voltage Elimination for Quasi-Switch Boost T-Type Inverter Based on SVM Technique Open

Duc-Tri Do, Minh‐Khai Nguyen, Van-Thuyen Ngo, Thanh-Hai Quach, Vinh-Thanh Tran · 2020

In this paper, the effect of common-mode voltage generated in the three-level quasi-switched boost T-type inverter is minimized by applying the proposed space-vector modulation technique, which uses only medium vectors and zero vector to s…

Input Power Factor Compensation Strategy for Zero CMV-SVM Method in Matrix Converters Open

Nguyen Huu Khanh Nhan, Minh‐Khai Nguyen, Van-Quang-Binh Ngo, Tan‐Tai Tran, Joon‐Ho Choi , et al. · 2020

The space vector modulation (SVM) method using only rotating vectors is very effective to suppress the common-mode voltage (CMV) for matrix converters (MCs). However, the effect of the input filter on the input power factor (IPF) has not b…

A Three-Phase Constant Common-Mode Voltage Inverter With Triple Voltage Boost for Transformerless Photovoltaic System Open

Tan‐Tai Tran, Minh‐Khai Nguyen, Van-Quang-Binh Ngo, Nguyen Huu Khanh Nhan, Truong‐Duy Duong , et al. · 2020

This paper introduces a new three-phase two-level inverter based on the switched-capacitor voltage multiplier. By adding a voltage multiplier network at the DC side of the traditional three-phase inverter topology, the DC-link voltage of t…

DC-Link Quasi-Switched Boost Inverter With Improved PWM Strategy and its Comparative Evaluation Open

Minh‐Khai Nguyen, Truong‐Duy Duong, Young‐Cheol Lim, Joon‐Ho Choi, D. Mahinda Vilathgamuwa , et al. · 2020

Low voltage stress on the impedance source network devices is the main reason for the advent of DC-linked type quasi-switched boost inverters (DqSBIs). However, the DqSBI has become less attractive due to its low voltage gain. This paper p…

A Study on Input Power Factor Compensation Capability of Matrix Converters Open

Nguyen Huu Khanh Nhan, Minh‐Khai Nguyen, Truong‐Duy Duong, Tan‐Tai Tran, Young‐Cheol Lim , et al. · 2020

In practice, the input filter is an important component in matrix converter (MC) systems for removing high harmonic components from input currents. Due to the input filter, the input power factor (IPF) at the main power supply does not alw…

Transformerless High Step-Up DC-DC Converters with Switched-Capacitor Network Open

Truong‐Duy Duong, Minh‐Khai Nguyen, Tan‐Tai Tran, Young‐Cheol Lim, Joon-Ho Choi · 2019

High-voltage gain conversion is necessary for several applications, especially for low voltage renewable source applications. In order to achieve a high-voltage gain, the presented paper proposes a class of transformerless DC-DC converters…

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