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All Journal TRANSIENT: Jurnal Ilmiah Teknik Elektro Proceedings Series on Social Sciences & Humanities Jurnal Ilmiah Ekonomi, Manajemen dan Syariah
Purwanto, Aji
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Religion Humanities Economics, Econometrics & Finance Electrical & Electronics Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences

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DESAIN DAN IMPLEMENTASI SECOND ORDER GENERALIZED INTEGRATOR-PHASE LOCKED LOOP (SOGI-PLL) UNTUK TEGANGAN SATU FASA MENGGUNAKAN DSPIC30F4011 DENGAN KONTROL PROPORTIONAL INTEGRAL Purwanto, Aji; Setiawan, Iwan; Winardi, Bambang
Transient: Jurnal Ilmiah Teknik Elektro TRANSIENT, VOL. 7, NO. 3, SEPTEMBER 2018
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1254.486 KB) | DOI: 10.14710/transient.7.3.729-736

Abstract

Grid Side Converter (GSC) is a power converter device that have important role in electrical energy conversion systems especially in the utilization of renewable energy sources in order to be connected to the grid. Based on the grid connection requirements, the GSC should be able to operate even if the grid is experiencing interference. Based on the problem, the GSC control system technically should have ability to detect grid disturbances quickly by using Phase Locked Loop (PLL) method that can provide grid voltage information. Compared with other PLL algorithms, the Second Order Generalized Integrator-Phase Locked Loop (SOGI-PLL) has adaptive-filtering characteristics in adjusting phase information. The SOGI-PLL method in this final project will be implemented for single phase system using dsPIC30F4011 microcontroller with PI controller. PI controller is expected to make the system has a fast response to the changes that occur, because the purpose of the PLL’s own needs is to get the results of grid voltage information such as magnitude, frequency, and phase in realtime. As the results, the SOGI-PLL algorithm through the use of ZMPT101B sensor shows the magnitude, frequency, and phase information is suitable with the grid voltage. The result of phase estimation have also been implemented in the inverter product development project, so that the output voltage inverter is in phase with the grid voltage.
ANALISIS PENGARUH RASIO KEUANGAN PADA HARGA SAHAM ASURANSI Fitri, Nor Alsuraya Desi; Hafizah, Nurul; Purwanto, Aji
Jurnal Ilmiah Ekonomi, Manajemen dan Syariah Vol. 3 No. 2 (2024): JIEMAS: Jurnal Ilmiah Ekonomi, Manajemen dan Syariah
Publisher : STAI Darul Qalam Tangerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55883/jiemas.v3i2.46

Abstract

This journal will discuss the analysis of the influence of financial ratios on insurance stock prices. Insurance is one of the financial companies listed on the Indonesia Stock Exchange. The development of insurance companies is rational and inevitable, because most entrepreneurs and people have a tendency to avoid the risk of loss or divert the risk of financial loss. This attracted researchers to analyze studies on the factors that affect the stock prices of insurance companies. The purpose of this study is to analyze the effect of the insurance company's claim expense ratio on the stock price. The types of research applied to this study are Descriptive Method and Qualitative Method. The type of data used is Secondary Data. Secondary data is data that contains information and theories used to support research. The data collection technique used in this study is a documentation study, which is the collection of supporting data in the form of published financial reports literature to get an overview of the problem to be studied
Effectiveness of RADEC Learning Model in Developing Critical Thinking Skills of Elementary School Students: A Systematic Literature Review Purwanto, Aji; Yanuarto, Wanda Nugraha
Proceedings Series on Social Sciences & Humanities Vol. 25 (2025): Proceedings of International Conference on Social Science (ICONESS)
Publisher : UM Purwokerto Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/pssh.v25i.1690

Abstract

Background from this research is the increasing emphasis on critical thinking skills development in elementary education, particularly through innovative learning models like RADEC (Read, Answer, Discuss, Explain, and Create). This study aims to systematically analyze research findings on the effectiveness of the RADEC learning model in developing elementary school students' critical thinking skills. This research employed a systematic literature review method following the PRISMA protocol. Data were collected from 25 studies published between 2019-2025 meeting the inclusion criteria, sourced from reputable databases. The analysis revealed that the RADEC model significantly enhances elementary students' critical thinking skills, with average improvements ranging from 25.4% to 38.7% across various subjects. The pre-learning questions phase and discussion activities were identified as the most critical elements fostering critical thinking development. Implementation challenges included teacher preparation time, adaptation to student reading levels, and the need for continuous assessment strategies. This review concludes that the RADEC model offers a structured, effective approach to developing critical thinking in elementary education, particularly when implemented with appropriate scaffolding and contextual adaptations.
Co-Authors Bambang Winardi Fitri, Nor Alsuraya Desi Hafizah, Nurul Iwan Setiawan Yanuarto, Wanda Nugraha