Results 61 to 70 of about 639 (172)

Synergistic Enhancement of Modified‐PVDF Humidity Sensitivity via Chemical Adsorption‐Ionic Conductivity and its Application in Intelligent Powered Air‐Purifying Respirator

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The study developed a PVDF/SiO2 humidity sensor with superhydrophobic properties and integrated the humidity sensor into the intelligent powered air‐purifying respirator (IPAPR) for breath monitoring. Coupled with the Gated Recurrent Unit (GRU) machine learning prediction algorithm, it enables feedforward control of the fan to achieve respiratory ...
Xinjian He, Hongwei Liu, Xianjie Xu, Xinkai Qi, Danhong Gao, Hanling Deng, Dusong Hou, Qianyao Lu, Lei Zhu, Sheng Huang   +9 more
wiley   +1 more source

A novel partitioned hybrid PWM strategy to reduce the common‐mode voltage in three‐level neutral‐point‐clamped inverters

IET Power Electronics
To reduce the common‐mode voltage (CMV) generated during the operation of the three‐level neutral‐point‐clamped (3L‐NPC) inverters, this study proposes a partitioned hybrid pulse width modulation (PHPWM) strategy. In this strategy, the three‐level vector
Cheng Song, Libo Wang, Jinhua Du
doaj   +1 more source

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

The Journal of Engineering, 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.
Li Ning, Gao Tong, Zhang Hui, Yang Ping
doaj   +1 more source

Development of a Power Electronics Controller for the Advanced Stirling Radioisotope Generator [PDF]

Under a U.S. Department of Energy program for radioisotope power systems, Lockheed Martin is developing an Engineering Unit of the Advanced Stirling Radioisotope Generator (ASRG).
Keiter, Douglas E., Leland, Douglas K., Priest, Joel F., Schreiber, Jeffrey G.   +3 more
core   +1 more source

Optimized Dual ANN Control Technique for Efficient Energy Management System (EMS) of Microgrid

Energy Science &Engineering, EarlyView.
Proposed methodology. ABSTRACT The escalating global energy demand necessitates a shift towards sustainable and environmentally friendly alternatives. While renewable energy sources like solar and wind energy offer promising solutions, their intermittent nature poses significant challenges for grid integration.
Bin Li, Bing Qi, Rashid Ali, Abubakar Siddique, Waseem Aslam, Hongfang Pan   +5 more
wiley   +1 more source

Implementation of NLC‐SHM based novel PWM scheme on packed U‐cell multilevel inverter

IET Power Electronics
This article introduces a novel integrated nearest level controller (NLC) combined with selective harmonic mitigation (SHM) control approach aimed at efficiently suppressing lower‐order harmonics has been introduced.
Mohd Tariq, Shahbaz Ahmad Khan, Deepak Upadhyay, Adil Sarwar, Arif Sarwat, Pasi Peltoniemi   +5 more
doaj   +1 more source

Modified capacitor voltage balancing sorting algorithm for modular multilevel converter

The Journal of Engineering, 2019
The modular multilevel converter (MMC) with large-scale sub-modules has the advantage of simpler modulation, lower switching frequency, and lower harmonic component, thus would be very promising in voltage source converter (VSC)–high voltage direct ...
Jie Zhang, Jun Liu, Jiayu Liu, Wanliang Fang, Junxian Hou, Yifeng Dong   +5 more
doaj   +1 more source

Optimization of Energy Efficiency in Photovoltaic Water Pumping Systems Using Neural Networks

Energy Science &Engineering, EarlyView.
This study investigates an optimal control strategy for a photovoltaic (PV) water pumping system aimed at improving efficiency and autonomy in off‐grid applications. The system uses an induction motor with direct torque control and compares three maximum power point tracking (MPPT) techniques: neural network–based MPPT, Incremental Conductance (IC ...
Sihem Ghoudelbourk, Habib Benbouhenni, Z. M. S. Elbarbary, Mohamed Benidir   +3 more
wiley   +1 more source

Influence of power quality and stack temperature on the specific energy consumption of alkaline electrolyzer

IET Renewable Power Generation
The efficiency of the power‐to‐hydrogen (P2H) alkaline electrolyzer (AE) is the primary factor constraint on its large‐scale application. Decreasing the specific energy consumption (SEC) of AE is positive to enhancing the efficiency of P2H system ...
Yannan Dong, Zhe Chen, Xiangjun Li, Haixin Wang, Zijiao Han, Shaohua Ma, Xin Yao   +6 more
doaj   +1 more source

Synchronisation of a distributed control and data acquisition system for modular multi-level PHIL amplifiers

The Journal of Engineering, 2019
This research presents a novel technique to synchronise a modular control and data acquisition system for the testing of multi-level power hardware-in-the-loop (PHIL) amplifiers.
Kenneth D. Sands, Mark A. H. Broadmeadow, Mark A. H. Broadmeadow, Geoffrey R. Walker   +3 more
doaj   +1 more source