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Journal : Indonesian Journal of Electrical Engineering and Computer Science

Dingo optimization algorithm for designing power system stabilizer Widi Aribowo; Bambang Suprianto; Unit Three Kartini; Aditya Prapanca
Indonesian Journal of Electrical Engineering and Computer Science Vol 29, No 1: January 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v29.i1.pp1-7

Abstract

The dingo optimization algorithm (DOA) adopts the social life of dingo dogs. The dingo is a breed of ancient dog originating from Australia. Dingo hunting strategies such as assault with persecution, flocking, and scavenging behavior became the inspiration for DOA. In this paper, DOA is applied to a power system stabilizer (PSS) to dampen low-frequency oscillations (LFO) in a single-machine infinite bus (SMIB). DOA is used to obtain optimal parameters for PSS. The damping controller is designed for optimal lead-lag control. To obtain the performance of the DOA method, the results were compared with the uncontrolled method, conventional PSS, Whale optimization algorithm (WOA), and grasshopper optimization algorithm (GOA). Simulation using MATLAB with three different operating conditions, namely light load (20%), medium load (50%) and high load (100%). From the simulation using MATLAB with SMIB modeling, it was found that the application of the DOA method on PSS has the ability to reduce the average undershoot value by 28.16% and reduce the average undershoot value to 65.57% compared to the conventional PSS method.
Exploring the tree algorithms to generate the optimal detection system of students' stress levels Yamasari, Yuni; Qoiriah, Anita; Rochmawati, Naim; Prapanca, Aditya; Prihanto, Agus; Suartana, I Made; Ahmad, Tohari
Indonesian Journal of Electrical Engineering and Computer Science Vol 36, No 1: October 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v36.i1.pp548-558

Abstract

The significant changes in the world of education after the coronavirus disease 2019 (COVID-19) pandemic have increased students' anxiety levels. This anxiety can trigger stress which can interfere with students' academic performance. Therefore, this condition is a critical problem that needs to be addressed immediately. However, researchers have not previously conducted much research to detect post-COVID stress levels. Apart from that, the existence of a system capable of carrying out this detection is still lacking. Therefore, this research focuses on building a system for detecting student stress levels. First, an exploration of the tree algorithm was carried out to find the most optimal method for recognizing student stress levels. Then a detection system is built using this optimal method. The research results show that the tree ID3 (Iterative Dichotomiser 3) algorithm achieves the highest accuracy value of 95% compared to other tree algorithms with the scenario of dividing training data into test data of 80%:20%. Moreover, this telegram bot-based detection system works well in recognizing three categories of stress, namely: light-, moderate-, and heavy stress based on black-box testing techniques.
Co-Authors A. Shehadeh, Hisham Abualigah, Laith Achmad Wikan Hamdani Addaviqi, Iqbal Izza Aditya, Muhammad Wifqi Affandi, R. M. Anwar Agus Prihanto Agus Prihanto Agus Prihanto Akbar, Abdullah Azizi Alfarqi, Ahmad Figo Alit, Ronggo ANITA QOIRIAH Arfianto, Bastian Asnawi Ayusta Lukita Wardani Azzariyah, Rania Nur Bambang Suprianto . Bisma, Rahadian Budihardjo, Muhammad Fakhruddin Cahyani, Novita Clarisa Gita Aprillia Dedy Rahman Prehanto Dodik Arwin Dermawan Edwin Irfan Nuha Al Hadad Eka Putra, Ricky Ellsa Wahyu Candra Pujiarwoko Elsayed Abd Elaziz, Mohamed Elviera Putri Erintasari Wibowo Fakhri, Yazid Zimam Febriansyah, Alfido Adha Febrianti, Naila Fiqri, Achmad Wasi'ul Gala, Karenina Heristiyadi, Dwi I Made Suartana Ida Kurniawati, Ida IGL Putra Eka Prismana Imed Mahmoud Kusumawati, Agustina Dwi Mahendra Widyartono Maulana, Faisal Ilham Mirza, Mohammad Misbakhudin, Muhamad Yusuf Molion Surya Pradana Muhamad Fikri Rizki Romadhoni Nadi Suprapto Naim Rachmawati Nasreddine Belhaouas Nisa’, Fatona Kholifatun Noor Anita Candra Dewi Novitasari, Ella Dwi Nurdinina, Elsie Shahria Oliva, Diego Pakarti, Benny Hasto Prasetyo, Muhammad Rifqi Probo Novian Candra Rafif Raif, Andi Rhifqy Rahadian Bisma Rahma, Elsa Auliya Rahmadian, Reza Rahman, Yanuar Andi Ricky Eka Putra Ricky Eka Putra Rochmawati, Naim Sabo, Aliyu Safitri, Priyamitha Ayu SALMAN ALFARIZI Santi Aris Setyaningrum Sari, Eva Kumala Sholeh, Ainun Nur Soedjono, Zada Ceindea Vica Soleimanian Gharehchopogh, Farhad Suartana, I Made Syalsabella, Andara Puteri Sylvia Rahma Tohari Ahmad Unit Three Kartini Wahyu Khamdani Wahyudianto, Bagus Widi Aribowo Wulansari, Yusti Indah Yoga Pradafa Harahap Yoyon K. Suprapto1 YUNI YAMASARI Zahid, Mas Muhammadun