Results 161 to 170 of about 581 (250)

A Novel Bipolar DC Connection Strategy for Photovoltaic Power Plants With a 50% Reduction in DC Cabling Length

Energy Science &Engineering, EarlyView.
Bipolar configuration is a new topology in the direct current (DC) system of photovoltaic power plants, which is topologically analogous to the bipolar configuration utilised in High‐Voltage Direct Current power transmission systems. DC cable length and copper usage are reduced by 50% using a bipolar configuration.
Duško M. Tovilović, Željko R. Đurišić, Vladan R. Durković   +2 more
wiley   +1 more source

Design and analysis of a single source seven level common ground SC based multilevel inverter topology with high reliability. [PDF]

Sci Rep
Hussain MT, Sarwar A, Hussan MR, Tariq M, Ahmad S, Bakhsh FI, Zaid M, Mohamed ASN, Khan B.   +8 more
europepmc   +1 more source

Lifetime Analysis of Grid‐Tied Photovoltaic System Considering DC–DC Converter Ripple and Efficiency

Energy Science &Engineering, EarlyView.
This work presents a comprehensive lifetime analysis of a two‐stage grid‐tied photovoltaic (PV) system by incorporating critical factors such as input current ripple and operating voltage variations, which are often neglected in conventional studies.
Surla Vishnu Kanchana Naresh, Sankar Peddapati, Praveen Kumar Bonthagorla   +2 more
wiley   +1 more source

A single-phase seven-level ANPC inverter with hybrid modulation for enhanced efficiency and harmonic performance. [PDF]

Sci Rep
Saif B, Sarwar A, Zaid M, Ahmad S, Liu HD, Chen WJ.   +5 more
europepmc   +1 more source

Hybrid Inverters With Dual Switching Frequencies for Switched Reluctance Motors

Energy Science &Engineering, EarlyView.
A hybrid dual‐switching‐frequency inverter for SRMs is proposed, combining SiC and IGBT devices based on rotor inductance. The method enables accurate current tracking with simple hysteresis control, significantly reducing torque ripple, vibration, and acoustic noise while cutting inverter cost compared to full‐SiC solutions.
Fares S. El‐Faouri, Majd G. Batarseh, Hamzeh J. Jaber, Ayman Faza, Wejdan Abu Elhaija   +4 more
wiley   +1 more source

A high efficiency active X²G boost converter with hybrid optimized proportional integral controller for PV powered EV charging applications. [PDF]

Sci Rep
Chandrasekar G, Lakshmanan SA.
europepmc   +1 more source

Predicting EU Emissions Allowance Prices Using Macroeconomic Indicators and Hybrid AI Models

Journal of Forecasting, EarlyView.
ABSTRACT Predicting carbon allowance prices has grown more crucial in relation to carbon market regulation, financial strategy, and environmental policy development. This study examines a hybrid forecasting system that combines deep learning with ensemble machine learning models to forecast the price fluctuations of EU Emissions Allowance (EUAs) within
Saptarshi Ganguly, Pooja Sengupta, Divya Aggarwal   +2 more
wiley   +1 more source

Grid-connected PV inverter system control optimization using Grey Wolf optimized PID controller. [PDF]

Sci Rep
Gupta M, Tiwari PM, Viral RK, Shrivastava A, Zneid BA, Hunko I.   +5 more
europepmc   +1 more source

Revisiting the Relationship Between Job Insecurity and Work Engagement: The Moderating Roles of Contract Type and Trait Negative Affectivity

Human Resource Development Quarterly, EarlyView.
ABSTRACT This study proposes and tests a curvilinear effect of job insecurity on work engagement, while also examining the moderating roles of employment contract type (permanent vs. temporary) and trait negative affectivity on this relationship. Utilizing two waves of time‐lagged data from a sample of 397 participants (273 permanent and 124 temporary ...
Hui‐Hsien Hsieh, Kuo‐Yang Kao
wiley   +1 more source

A review on topology and control strategies of high-power inverters in large- scale photovoltaic power plants. [PDF]

Heliyon
Azizi A, Akhbari M, Danyali S, Tohidinejad Z, Shirkhani M.   +4 more
europepmc   +1 more source