A FFT based Harmonic Calculation on Voltage Source Inverters with DPWM
Hong Zheng ; Kai Li ; Gang Tang ; Zheng-Feng Liang
Harmonic Calculation
,
Voltage Source Inverters
,
Fourier transform algorithm
,
DPWM
For the validity of filter-optimized design in voltage source inverters (VSI), a practically quantitative calculation method is quite necessary….
A New Zero Voltage Switching Three-Level NPC Inverter
Ning He ; Yenan Chen ; Dehong Xu ; Ke Ma ; Frede Blaabjerg
ZVS
,
three-level NPC inverter
,
SVM
A novel Zero Voltage Switching (ZVS) three-level NPC inverter topology using a new ZVS Space Vector Modulation (SVM) scheme is proposed. A…
A Startup Scheme for Zero-Voltage-Switching PV Inverter
Jiangbei Xi ; Yenan Chen ; Min Chen ; Pingping Chen ; Dehong Xu
Zero-Voltage-Switching
,
startup scheme
,
PV inverter
The startup process of the Zero-Voltage-Switching full-bridge inverter is presented. In order to guarantee all the switching devices of the…
Active Thermal Protection and Lifetime Extension in 3L-NPC-Inverter in the Low Modulation Range
The-Minh Phan ; Gernot J. Riedel ; Nikolaos Oikonomou ; Mario Pacas
PWM
,
Fault Tolerant Control
,
3L-NPC VSC
The switches of multilevel inverters in high-power applications are mounted on dedicated heatsinks and there is no built-in heat sharing among…
An Inrush Current Mitigation Approach of the Output Transformer for Inverter
Zhi Chen ; Xuejun Pei ; Li Peng ; Shunchao Wang
short circuit
,
inverter
,
inrush current
,
mitigation
When a short circuit fault occurs on the load side of inverter, the control system based on hardware and software current limiting strategy…
An Isolated Bi-Directional Soft-Switched DC-AC Converter using Wide-Band-Gap Devices with Novel Carrier-based Unipolar Modulation Technique under Synchronous Rectification
Mengqi Wang ; Qingyun Huang ; Wensong Yu ; Alex Q. Huang
Cycloconverter
,
High-Frequency-AC Link
,
Unipolar Soft-switching modulation
,
Hybrid switches
A novel carrier-based unipolar-SPWM-oriented modulation technique with synchronous rectification for isolated bi-directional soft-switched…
Analog Control of AC Link Universal Power Converters: The Key to Very High Frequency AC Link Conversion Systems
AC-AC converter
,
Inverters
,
soft switching
,
High frequency ac link
,
analog control
The ac-link universal converters offer numerous advantages, including high power-density. Despite being single-stage, these converters can…
Analysis of a Modulation Technique Applied to FC Inverter for THD Reduction
Davi R. Joca ; Allan U. Barbosa ; Demercil S. Oliveira Jr. ; Paulo P. Praça ; Luiz H.S.C. Barreto ; Ranoyca N.A.L. Silva
Multilevel
,
FC inverter
,
THD reduction
This work presents a better-detailed study and THD analysis of the modulation technique previously described in [1] which is applied in total…
Efficiency Evaluation on a CoolMos Switching and IGBT Conducting Multilevel Inverter
Alexander Anthon ; Zhe Zhang ; Michael A.E. Andersen ; Toke Franke
NPC
,
T-Type
,
Hybrid
,
CoolMos
,
IGBT
A multilevel inverter for grid-tie applications and motor drives is presented, that uses CoolMos switches for the switching actions and IGBT…
Evaluation of Design Variables in Thompson Coil based Operating Mechanisms for Ultra-Fast Opening in Hybrid AC and DC Circuit Breakers
Chang Peng ; Iqbal Husain ; Alex Q. Huang
Finite element method
,
ultra-fast switch
,
Thompson coil
,
operating mechanism
,
hybrid circuit breaker
,
DC circuit breaker.
The paper presents the operation transient analysis and multi-physics complexities in the design of a Thompson coil based ultra-fast…
Modular Multilevel Converter with Full-Bridge Submodules and Improved Low-Frequency Ripple Suppression for Medium-Voltage Drives
Liqun He ; Kai Zhang ; Jian Xiong ; Shengfang Fan ; Yaosuo Xue
Modular Multilevel Converter
,
Medium Voltage Drives
,
Full-Bridge Submodule
Due to the low-frequency voltage fluctuation problem, application of modular multilevel converters (MMC) in wide-speed-range medium-voltage…
Predictive Control Method for Load Current of Single-Phase Voltage Source Inverters
Jeihoon Baek ; Su-en Kim ; Sangshin Kwak
Single-phase voltage source inverter
,
current control
This paper proposes a model predictive current control (MPCC) method utilizing two output voltages with variable application durations in one…
Time Optimal, Loss Minimizing Current Trajectory for Interior Permanent Magnet Synchronous Machines in Overmodulation
IPMSM
,
Current Control
,
Overmodulation
,
Dynamic Programming
This paper describes a minimum loss and fast dynamic torque control for interior permanent magnet synchronous machine (IPMSM) drives…
