Articles

Access the latest knowledge in applied science, electrical engineering, computer science and information technology, education, and health.

Advanced Search
Filter Icon

Filters article

Years

FAQ Arrow
Single Year
Range Year
0
0

Source Title

FAQ Arrow

Authors

FAQ Arrow

31,456 Article Results

Factors affecting engineering students’ self-perceived employability in Morocco

10.11591/ijere.v14i3.31797
Zineb Sabri , Ahmed Remaida , Benyoussef Abdellaoui , Abdessalam Ait Madi , Aniss Qostal , Fatima Ezzahra Chadli , Youssef Fakhri , Aniss Moumen
In a dynamic socio-economic world, perceiving a career opportunity and job prospects has become complex. The number of unemployed individuals is rising despite the increasing number of students pursuing higher education. This study is suggested to enhance students’ professional insertion, guide their career development initiatives, and help them acquire the skills demanded by prospective employers, thereby increasing their likelihood of employment. For this goal, this study investigates the determinants impacting self-perceived employability (SPE) among engineering students. Following a quantitative approach to explain how personal and contextual factors impact perceived employability, more than 350 Moroccan engineering students responded to a questionnaire for data collection, which had an internal consistency of 0.90. Data analysis employing advanced statistical techniques using structural equations modeling (SEM) to conduct descriptive, regression, and mediation analysis. The findings highlight that academic performance, university contribution, and personal circumstances significantly influence perceived employability, while generic skills have a minor effect. Furthermore, personal determinants are identified as stronger than contextual ones. The results provide several recommendations to stakeholders such as university administrations, teaching staff, employers, the Ministry of Education, and graduates. Additionally, they offer an insightful exploration of the intricate interactions among factors that enhance employability.
Volume: 14
Issue: 3
Page: 2132-2143
Publish at: 2025-06-01

Wind turbine defect detection using deep learning

10.11591/ijpeds.v16.i2.pp1348-1355
Deepa Somasundaram , M. Vanitha , T. Sathish Kumar , I. Arul Doss Adaikalam , P. Kavitha , R. Kalaivani
Wind turbines play a critical role in the generation of renewable energy, but their maintenance and inspection, especially in large-scale wind farms, present significant challenges. Traditionally, wind turbines have been inspected manually, a process that is not only time-consuming but also costly and risky. Unmanned aerial vehicles (UAVs) have emerged as an efficient alternative, offering a safer and more economical means of gathering inspection data. However, the challenge lies in the manual analysis of the collected data, which demands expertise and considerable time. This paper proposes using object detection algorithms, specifically YOLOv8, to automate the detection of wind turbines and their defects, streamlining the inspection process. The model is trained on wind turbine images to identify potential faults such as cracks and corrosion. This approach aims to increase the accuracy and efficiency of wind turbine maintenance, ensuring prompt defect detection and reducing both operational costs and downtime.
Volume: 16
Issue: 2
Page: 1348-1355
Publish at: 2025-06-01

Electricity generation and multi-purpose applications from biogas and biomethane

10.11591/ijpeds.v16.i2.pp1325-1340
Moses Jeremiah Barasa Kabeyi , Joseph Akpan , Oludolapo Akanni Olanrewaju
Biogas produced from biomass is a renewable energy resource with high value potential to support sustainable development. This study presents abridged advances and pathways from biogas and biomethane to electricity with opportunities and challenges in generation, conversion, and storage needed for use in many areas like transportation, power generation and storage, building, and industrial heat production sectors. A high knock resistance, making it suitable for use in thermal systems with high compression rate, characterizes biogas combustion. Various prime movers using biogas as fuel can be used for electricity generation, including direct conversion through fuel cells, which is a significant pathway to sustainable energy storage. Biogas to electricity conversion by a generator set is much more practical today. Turbines, micro turbines, Stirling engines, diesel engines, and petrol engines are only some of the viable possibilities for converting biogas to electricity. Biomethane can be used as a substitute for natural gas in all its applications with little or no modifications to the fuel infrastructure. Finally, this study discusses biogas and biomethane’s limits and contribution to the Sustainable Development Goals 2, 6, 7, 8, 9, 11, 13, 14, and 17.
Volume: 16
Issue: 2
Page: 1325-1340
Publish at: 2025-06-01

A novel adaptive control scheme for dynamic voltage restorer

10.11591/ijpeds.v16.i2.pp1083-1093
Tummala Kranti Kiran , Balakrishnan Rajagopal , Yerramilli Butchi Raju
This study introduces a novel approach to improve the performance of the dynamic voltage restorer (DVR) using a control structure based on the inverse hyperbolic sine function-based least mean square (IHSF-LMS). The proposed control structure efficiently extracts the fundamental source voltage component with rapid convergence. The primary objective of this control scheme is to enhance compensation capability and maintain load voltage stability. Key features include superior steady-state performance and heightened robustness with reduced computational complexity. This approach achieves a reduction in peak overshoot and settling time compared to the traditional LMS method. The validation of system performance is conducted through MATLAB/Simulink simulations, demonstrating compliance with the IEEE-519-2014 standards for harmonic spectra.
Volume: 16
Issue: 2
Page: 1083-1093
Publish at: 2025-06-01

The impact of innovative technology on shaping digital design skills in primary school students: a case study of Kazakhstan

10.11591/ijere.v14i3.32777
Saltanat Anapiyayeva , Gulnar Uaisova , Almash Turalbayeva , Sabira Nishanbayeva
The trajectory of digital progress in Kazakhstan has highlighted several challenges within the primary education system. A critical component of developing digital design skills (DDS) lies in the impact of innovative educational technologies on these skills. Despite the potential of such technologies to enhance DDS and engage students in digital literacy, the existing literature falls short in exploring this area comprehensively. The study aims to examine students’ DDS and examines how innovative educational learning technology affects these skills. This study used a quantitative research approach to measure innovative educational learning technology's impact on primary school students’ DDS. The experiment involved 120 participants and uncovered several key insights. The deficiency in DDS and lack of motivation revealed by the study called for systematic changes in how digital literacy is taught. These changes included restructuring curricula, enhanced teacher training, access to digital resources, and more engaging, practical learning environments. The study demonstrated substantial improvements in students’ DDS following the introduction and testing of the author's academic program with the experimental group (EG) participants. The findings from this study can serve as a foundation for developing strategies to enhance DDS in primary school and provide a methodological basis for adapting educational programs to support DDS development.
Volume: 14
Issue: 3
Page: 2389-2399
Publish at: 2025-06-01

Leveraging active learning practices for effectiveness of higher education: performance based investigation

10.11591/ijere.v14i3.30325
Vignesh Saravanan Kirubakara , Swarna Sudha Muppudathi , Jothi Thilaga Paul Ayyadurai , Sakthi Priya Gomathi Nayagam
Engineering graduates in India struggle with employability due to outdated curricula and ineffective teaching methods, which limit their ability to apply knowledge and think critically. A performance-based study investigated the impact of active learning (AL) techniques in technical education using methods like concept mapping, role-playing, virtual labs, and collaborative coding in computer science and engineering courses. The findings showed a 35% to 40% improvement in academic results compared to traditional methods, along with significant boosts in student engagement, comprehension, and critical thinking. Student feedback and performance evaluations strongly favored AL. Cluster analysis revealed fewer slow learners, highlighting its effectiveness in meeting diverse needs. The study concludes that integrating AL can better prepare students for the job market and enrich their educational experience.
Volume: 14
Issue: 3
Page: 2327-2336
Publish at: 2025-06-01

Advanced multi-source converters for DC microgrids: integrating photovoltaic, wind, and hybrid storage systems

10.11591/ijpeds.v16.i2.pp1261-1273
Suganthi Neelagiri , Pasumarthi Usha
This paper presents a new configuration for integrating multi-source and hybrid energy storage (HES) systems tailored for a direct current (DC) microgrid. Unlike conventional multi-input converters, the proposed design features a hybrid energy storage system combining ultracapacitors and batteries. The proposed system is intended to effectively manage power variations from wind, photovoltaic (PV) sources, and abrupt load changes. The inclusion of ultracapacitors addresses high-frequency fluctuations, thereby extending battery life and reducing the overall size of the storage unit. The control framework is designed to maintain power balance within the system, ensuring that renewable energy sources operate at their maximum power points and that energy storage is efficiently charged and discharged based on power availability. The main advantages of this configuration include: i) a reduced number of switches, ii) built-in voltage boosting and regulation for the ultracapacitor, and power-sharing between the battery and ultracapacitor, and iii) a streamlined control system with fewer components. The paper details the investigation, modeling, and design of the planned system, supported by MATLAB simulation results.
Volume: 16
Issue: 2
Page: 1261-1273
Publish at: 2025-06-01

Hybrid MPPT technique using fuzzy logic and P&O of solar power system

10.11591/ijpeds.v16.i2.pp1061-1069
Karima Et-Torabi , Souhail Barakat , Badr N’hili , Abdelouahed Mesbahi , Ayoub Nouaiti
This paper introduces an enhanced perturb and observe (P&O) technique with a variable step size utilizing fuzzy logic to address the limitations of the traditional P&O technique, particularly under rapidly fluctuating solar radiation conditions. The performance of the suggested variable step size FLC-P&O maximum power point tracking (MPPT) and the constant step size P&O techniques is simulated and evaluated under various operating scenarios using MATLAB/Simulink software. The suggested technique was successfully validated using a boost converter connected to a Canadian Solar CS6P-240P photovoltaic (PV) model. The results demonstrate that the FLC P&O technique improves response accuracy and reduces steady-state terminal voltage fluctuations. Moreover, the findings show that the suggested technique provides a faster response and higher MPPT efficiency compared to the traditional P&O technique, particularly during sudden variations in solar irradiance.
Volume: 16
Issue: 2
Page: 1061-1069
Publish at: 2025-06-01

Harmonic reduction in power grids: implementing a four-legged multilevel inverter as an active power filter using model predictive control

10.11591/ijpeds.v16.i2.pp922-935
Asep Andang , Firmansyah Maulana Nursuwars , Andri Ulus Rahayu , Imam Taufiqurrahman , Ervan Paryono
This study explores the implementation of a five-level cascaded three-phase four-wire inverter as an active power filter to mitigate harmonics in power grids. Harmonic components in the load current are transformed and filtered to create a reference current, which serves as the foundation for designing the inverter’s switching pattern. The predicted current, generated through circuit modeling, is compared with the reference current using the model predictive control (MPC) method. The accuracy of this approach is evaluated using a cost function that measures the difference between the predicted and reference currents. Simulation results reveal that the application of the hybrid power filter can effectively suppress harmonics, reducing the total harmonic distortion (THD) to below 5%, thereby meeting power quality standards. Furthermore, it addresses load imbalances, ensuring that the phase currents at the source remain nearly equal. Additionally, the hybrid power filter significantly decreases the neutral current, reducing it to just one-tenth of its original value. While MPC has demonstrated its effectiveness in controlling power converters and multilevel inverters, its application to active power filters remains underexplored. This study investigates the potential of a four-legged multilevel inverter with MPC to enhance power quality by reducing harmonics in three-phase four wire systems.
Volume: 16
Issue: 2
Page: 922-935
Publish at: 2025-06-01

Comparison of speed loop control methods for IPM motor in electric vehicles

10.11591/ijpeds.v16.i2.pp719-727
An Thi Hoai Thu Anh , Tran Van Nhu , Tran Trong Hieu
With its outstanding features, such as high efficiency and torque-producing capability compared with the induction motor, the interior permanent magnet synchronous motor (IPMSM) has been increasingly researched and used for electric vehicles. The speed control strategy for both low and high speeds of the IPMSM is studied in conjunction with controllers based on the field oriented control (FOC) structure to ensure accurate and stable system response under various operating conditions. This paper focuses on three control methods: sliding mode control (SMC), backstepping (BSP), and proportional integral (PI) for the speed loop to enhance system stability. Coupled with the presence of load disturbances, environmental disturbances, and uncertainties in parameters, comparisons and observations regarding the three methods can be made to conclude system stability and performance. Finally, simulation results on MATLAB/Simulink software confirm the effectiveness and validity of the proposed speed controllers.
Volume: 16
Issue: 2
Page: 719-727
Publish at: 2025-06-01

Modeling and analysis of three-phase boost rectifier for DC fast EV charging

10.11591/ijpeds.v16.i2.pp1094-1106
Jeerapong Srivichai , Kittaya Somsai , Nithiroth Pornsuwancharoen
This research investigates the modeling and analysis of a three-phase boost rectifier for DC fast charging systems for electric vehicles (EVs). A mathematical model validated with MATLAB/Simulink simulations examines system behavior under various conditions. Performance analysis in the abc and dq coordinate systems reveals high consistency with theoretical calculations. The average voltage in the dq frame was found to be vd was 685 V and vq was 0 V, with a discrepancy of less than 0.1% from calculated values. However, the average current in the dq frame showed discrepancies due to cross-coupling effects and circuit impedance. Simulations reported id was 211.50 A and iq was 93.50 A, compared to calculated values of id was 151.97 A and iq was 0 V. For the output DC voltage and current, the average values were 983.05 V and 98.31 A, respectively. Three test cases were analyzed, consist of unbalanced three-phase conditions, voltage drops, and load step responses. Case 1 showed the highest total harmonic distortion (THD), Case 2 increased THD further, and Case 3 achieved the lowest THD, demonstrating improved stability under dynamic loads. These findings confirm the system’s minimal deviations from theoretical predictions, enhanced voltage quality, harmonic mitigation, and improved charging efficiency for EV fast charging applications.
Volume: 16
Issue: 2
Page: 1094-1106
Publish at: 2025-06-01

A single-stage constant-power and optimal-efficiency double-sided LCC wireless battery charger

10.11591/ijpeds.v16.i2.pp1409-1416
Jiabo Yan , Mohd Junaidi Bin Abdul Aziz , Nik Rumzi Nik Idris , Tole Sutikno
This article proposes a novel single-stage double-sided LCC (DS-LCC) constant power (CP) wireless battery charger. The proposed CP charger uses a closedloop control in the secondary side with the active rectifier to make the DS-LCC charger achieve CP charging and optimal efficiency. Compared to previous work, the proposed CP wireless power transfer system does not involve any switch-controlled capacitor (SCC), does not require wireless communication, and can achieve optimal efficiency throughout the charging process. The proposed charger reduces cost and system complexity while improving efficiency. The proposed wireless charger is validated by simulation, and the efficiency remains between 94.44% and 94.52%, surpassing the previous work.
Volume: 16
Issue: 2
Page: 1409-1416
Publish at: 2025-06-01

A systematic review on innovations in computer aided design in engineering education

10.11591/ijere.v14i3.30250
Margarita F. Murillo Manrique , Jorge Augusto Sanchez Ayte
curricula up-to-date with advanced computer-aided design (CAD) technologies to understand their practical application in various industrial and research contexts. Given this need, a systematic review was proposed following the preferred reporting items for systematic reviews and meta-analyses (PRISMA) method to evaluate the most recent innovations in CAD systems and their effective application in engineering education. The results reveal that emerging technologies such as real-time virtual collaboration, 3D design, and virtual reality are being incorporated into educational environments, significantly enhancing students’ technical and collaborative skills. The research concludes that these technologies not only reconfigure engineering education, emphasizing a practical and updated approach, but also facilitate a more interactive and effective learning experience. This study highlights the urgent need to adapt educational programs to incorporate these innovations, thus ensuring that future engineers are better prepared to face the challenges of modern industry.
Volume: 14
Issue: 3
Page: 1804-1814
Publish at: 2025-06-01

System-on-chip design for improved switching angle driven 35-level LUO progression-based multi-level inverter

10.11591/ijpeds.v16.i2.pp974-981
Joseph Anthony Prathap , J. Kanti Prasad , Vivekananda Reddy , Chinthapalli Suheil
This article concentrates on the development of the IC layout for the driving switches of the inverter with improved switching control. This work uses the improved non-carrier switching pattern algorithms to have precise control of inverter switches with twin objectives of i) reducing the total harmonic distortion (THD)% and ii) developing a dedicated system on chip for the improved switching control of the 35-level switched ladder multi-level inverter. The DC voltage of the inputs to the inverter is designated based on the LUO progression, which consists of an improved mathematical formula for deriving its values. Conventionally, the multi-level inverter circuits are driven by the pulse width modulation signals by overlapping the modulating sine wave with different levels of triangle waves, such as phase disposition, phase opposite disposition, and alternate phase opposite disposition, utilized to drive various voltage source inverter topologies. Although the MLI design concentrates on minimal THD%, factors like accuracy, minimum number of switches, and cost demands for advanced switching strategy algorithms. This paper compares the improved switching angle method to the existing algorithm by considering VPEAK, VRMS, and %THD for the 35-level LUO progression-based switched ladder inverter. The IC layout for the improved switching control is developed using the hardware description language code in the Cadence tool and validated by cross-compiling in Simulink MATLAB.
Volume: 16
Issue: 2
Page: 974-981
Publish at: 2025-06-01

Optimization of renewable energy-based electrical systems on tourist ships in Labuan Bajo

10.11591/ijpeds.v16.i2.pp1306-1313
I Made Aditya Nugraha , I Gusti Made Ngurah Desnanjaya
The use of fossil fuels on tourist boats in Labuan Bajo poses challenges in the form of high operational costs and significant environmental impacts. This study aims to optimize the renewable energy-based electrical system by utilizing a hybrid photovoltaic and generator system on tourist boats. The methods used include simulation and technical, economic, and socio-cultural analysis to evaluate the feasibility and efficiency of the system. The results of the study show that technically, the hybrid photovoltaic (PV)-generator system is able to improve energy efficiency and reliability of electricity supply, especially in dealing with fluctuations in power needs. From an economic aspect, this system has been proven to reduce fossil fuel consumption by up to 40%, which has an impact on long-term operational cost savings, even though the initial investment is quite high. Socio-culturally, the implementation of this system supports sustainability values and provides a positive image for the tourism industry in Labuan Bajo as an environmentally friendly destination. The use of a hybrid PV-generator system is an innovative and sustainable solution for tourist boats in Labuan Bajo, which not only improves technical efficiency and economic benefits but also supports environmental conservation and sustainability-based tourism.
Volume: 16
Issue: 2
Page: 1306-1313
Publish at: 2025-06-01
1 2 3
...
2097 2098
Show 298 of 2098

Discover Our Library

Embark on a journey through our expansive collection of articles and let curiosity lead your path to innovation.

Explore Now
Library 3D Ilustration