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All Journal Buletin Ilmiah Sarjana Teknik Elektro Indonesian Journal of Education Research (IJoER)
Blazek, Vojtech
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Education Electrical & Electronics Engineering Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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Genetic Algorithm Tuned Controllers for High-Performance Indirect Field-Oriented Control in DFIG-Based WECS Heroual, Samira; Belabbas, Belkacem; Ayati, Kheloud; Haloui, Rabia; Hassan, Ahmed Tawfik; Ma’arif, Alfian; Mahmoud, Mohamed Metwally; Blazek, Vojtech
Buletin Ilmiah Sarjana Teknik Elektro Vol. 8 No. 1 (2026): February
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v8i1.15529

Abstract

Due to rising environmental awareness, rising fuel prices, and increasing power consumption, wind power is currently the world's fastest-growing electricity source. One essential form of renewable energy generation is wind energy conversion using a Doubly Fed Induction Generator (DFIG). Moreover, DFIGs are the best option, as wind turbines with variable speeds often have substantial megawatt capacity. Their cost-effectiveness, high operational efficiency, adaptable control mechanisms, and capacity to autonomously regulate the exchange of active and reactive power are the reasons for this selection. Classical control, which is based on PI regulators and employs several loops, is the most popular control approach that makes use of the indirect field-oriented vector method. In order to ensure stability across the whole speed range, it also requires strict regulation and is highly dependent on the correctness of the machine parameters. This paper presents a comparison between the classical PI and the metaheuristic Genetic Algorithm (GA), aiming to enhance the power extraction of DFIG under varying wind conditions. The simulation was carried out using MATLAB-SIMULINK, enabling the exploration of its performance across a range of operational scenarios. The results indicate that the PI controller optimized by GA demonstrates significant improvements over traditional controllers, particularly noted for its simplicity, faster convergence, and greater efficiency in power management.
The Influence of the Jurisprudential Inquiry Learning Model Assisted by Video Media on the Intellectual Skills and Learning Outcomes of Students Tommy Prawoto, Jalu; Thang, Ha Va; Blazek, Vojtech
Indonesian Journal of Education Research (IJoER) Vol. 4 No. 5 (2023): October
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/ijoer.v4i5.757

Abstract

Purpose of the study: The aim of this research is to find out (1) whether there is a significant influence in the application of the jurisprudential inquiry learning model assisted by video media on students' intellectual skills. (2) is there a significant influence in the application of the jurisprudential inquiry learning model assisted by video media on student learning outcomes Methodology: The population in this study were all class XI high school students who were divided into 4 classes. The sampling technique is random sampling. The sample in this research was students in class XI social sciences 1 and XI social sciences 2, totaling 66 students. The research method used is an experimental research method. The research design used was Quasi experimental design with nonequivalent control group design. The data collection techniques used are observation and tests. The data analysis technique used was the one-way ANOVA test with a significance level of 0.5% Main Findings: The results of the research show (1) there is a significant influence in the application of the jurisprudential inquiry learning model assisted by video media on students' intellectual skills as evidenced by the mean comparison of 22.8888: 20.8056 tested using one way ANOVA with a significance level of 5% obtained Fobs > F table (7.98131106 > 3.07). (2) there is a significant influence in the application of the jurisprudential inquiry learning model assisted by video media on student learning outcomes as evidenced by the mean comparison of 10.1111: 8.1949 which was tested with one way ANOVA with a significance level of 5% obtained Fobs > F table ( 27.35758 > 4.56) Novelty/Originality of this study: This research uses a jurisprudential inquiry learning model assisted by video media, which combines a legal learning approach and the use of video media. This approach can be considered its latest, because it tries to combine two different elements to improve student learning. This can provide new insights into how to improve intellectual skills and learning outcomes through a combination of innovative learning models and media
Co-Authors Alfian Ma’arif Ayati, Kheloud Belabbas, Belkacem Haloui, Rabia Hassan, Ahmed Tawfik Heroual, Samira Mahmoud, Mohamed Metwally Thang, Ha Va Tommy Prawoto, Jalu