Results 41 to 50 of about 9,371,332 (99)

Voltage and Current Balancing of a Faulty Photovoltaic System Connected to Cascaded H‐Bridge Multilevel Inverter

open access: yesInternational Transactions on Electrical Energy Systems, Volume 2024, Issue 1, 2024.
A healthy operation of photovoltaic installations (similar to all electrical systems) is always limited by breakdown, degradation due to aging, or imbalance caused by weather conditions. In this context, producing the maximum energy possible with an acceptable form factor is a significant challenge for autonomous systems, especially those connected to ...
Kamel Djermouni   +4 more
wiley   +1 more source

Research of a Flexible Space-Vector-Based Hybrid PWM Transition Algorithm between SHEPWM and SHMPWM for Three-Level NPC Inverters

open access: yes, 2020
In this paper, one model of flexible space-vector-based hybrid pulse width modulation (HPWM) transition algorithm consisting of selective harmonic elimination pulse width modulation (SHEPWM) and selective harmonic mitigation pulse width modulation ...
Andrey Radionov   +3 more
core   +1 more source

Optimization of the Harmonic in AC Drive Locomotive and EMUs

open access: yesKongzhi Yu Xinxi Jishu, 2016
   Harmonic content is one of the most important indexes in AC drive locomotive and EMUs. It firstly introduced four types of on-board passive filters and their working principles, such as series inductance, LCL filter, RC filter, RLC filter and so on ...
ZHANG Zhibing, ZHANG Zhixue, CHEN Zhibo
doaj  

Model Prediction and Pulse Optimal Modulation of Electrically Excited Synchronous Motor at Low Switching Frequency

open access: yes, 2022
In this paper, in order to improve the control performance of a high-power electrically excited synchronous motor (EESM) under low switching frequency, and to improve the poor dynamic response of the traditional selective harmonic elimination pulse width
Qingqing Yuan, Kai Li, Wei Nai
core   +1 more source

Comparative research of harmonic suppression algorithm of the three-level NPC converter

open access: yes, 2018
The three-level NPC converter is an effective solution to medium-voltage and high-power electronic converters. Modulation strategy is one of research focus of the three-level NPC converter.
Yang Ping, Li Ning, Gao Tong, Zhang Hui
core   +1 more source

Selective harmonic elimination pulse width modulation for three-phase nine-level inverter using improved whale optimization algorithm

open access: yes, 2023
For many years, multilevel inverter (MLI) is a system well-known for converting DC voltage to AC voltage which is suitable for energy resources conversion for industrial power sources.
Talib, Md Hairul Nizam   +7 more
core   +1 more source

Measuring built environment technology awareness using time-series analysis

open access: yes, 2021
Thesis: M.C.P., Massachusetts Institute of Technology, Department of Urban Studies and Planning, February, 2021Thesis: S.M. in Real Estate Development, Massachusetts Institute of Technology, Program in Real Estate Development in conjunction with the ...
Wang, Yuehan, M.C.P. Massachusetts Institute of Technology.
core  

Common-Mode Voltage Suppression of a Five-Level Converter Based on Multimode Characteristics of Selective Harmonic Elimination PWM

open access: yes
The combination of five-level converters with selective harmonic elimination pulse-width modulation (SHEPWM) is a practical need in medium-voltage, high-power applications.
Bo Guan, Chuanchuan Luo
core   +1 more source

Selective Harmonics Elimination PWM (SHEPWM)Using Differential Evolution Approach

open access: yes, 2010
This paper proposes the application of Differential Evolution (DE) algorithm to the selective harmonics elimination pulse-width modulation (SHE-PWM) scheme.
Bahari, Norhazilina
core   +1 more source

Home - About - Disclaimer - Privacy