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Journal : International Journal of Electrical and Computer Engineering

Optimizing of the installed capacity of hybrid renewable energy with a modified MPPT model Sukarno Budi Utomo; Iwan Setiawan; Berkah Fajar; Sonny Hady Winoto; Arief Marwanto
International Journal of Electrical and Computer Engineering (IJECE) Vol 12, No 1: February 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v12i1.pp73-81

Abstract

The lack of wind speed capacity and the emission of photons from sunlight are the problem in a hybrid system of photovoltaic (PV) panels and wind turbines. To overcome this shortcoming, the incremental conductance (IC) algorithm is applied that could control the converter work cycle and the switching of the buck boost therefore maximum efficiency of maximum power point tracking (MPPT) is reached. The operation of the PV-wind hybrid system, consisting of a 100 W PV array device and a 400 W wind subsystem, 12 V/100 Ah battery energy storage and LED, the PV-wind system requires a hybrid controller for battery charging and usage and load lamp and it’s conducted in experimental setup. The experimental has shown that an average increase in power generated was 38.8% compared to a single system of PV panels or a single wind turbine sub-system. Therefore, the potential opportunities for increasing power production in the tropics wheather could be carried out and applied with this model.
Fuzzy logic applications for data acquisition systems of practical measurement Muhammad Haddin; Arief Marwanto; Agus Suprajitno; Munaf Ismail
International Journal of Electrical and Computer Engineering (IJECE) Vol 10, No 4: August 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1047.896 KB) | DOI: 10.11591/ijece.v10i4.pp3441-3450

Abstract

In laboratory works, the error in measurement, reading the measurring devices, similarity of experimental data and lack of understanding of practicum materials are often found. These will lead to the inacurracy and invalid in data obtanined. As an alternative solution, application of fuzzy logic to the data acquisition system using a web server can used. This research focuses on the design of data acquisition systems with the target of reducing the error rate in measuring experimental data on the laboratory. Data measurement on laboratory practice module is done by taking the analog data resulted from the measurement. Furthermore, the data are converted into digital data via arduino and stored on the server. To get valid data, the server will process the data by using fuzzy logic method. The valid data are integrated into a web server so that it can be accessed as needed. The results showed that the data acquisition system based on fuzzy logic is able to provide recommendation of measurement result on the lab works based on the degree value of membership and truth value. Fuzzy logic will select the measured data with a maximum error percentage of 5% and select the measurement result which has minimum error rate.
Adaptive quantization for spectrum exchange information in mobile cognitive radio networks Arief Marwanto; Sharifah Kamilah Syed Yusof; Muhammad Haikal Satria
International Journal of Electrical and Computer Engineering (IJECE) Vol 10, No 4: August 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (766.396 KB) | DOI: 10.11591/ijece.v10i4.pp3605-3614

Abstract

To reduce the detection failure of the exchanging signal power onto the OFDM subcarrier signal at uniform quantization, dynamic subcarrier mapping is applied. Moreover, to addressing low SNR’s wall-less than pre-determine threshold, non-uniform quantization or adaptive quantization for the signal quantization size parameter is proposed. μ-law is adopted for adaptive quantization subcarrier mapping which is deployed in mobility environment, such as Doppler Effect and Rayleigh Fading propagation. In this works, sensing node received signal power then sampled into a different polarity positive and negative in μ-law quantization and divided into several segmentation levels. Each segmentation levels are divided into several sub-segment has representing one tone signal subcarrier number OFDM which has the number of quantization level and the width power. The results show that by using both methods, a significant difference is obtained around 8 dB compared to those not using the adaptive method.
Co-Authors A. M. Harb, Hani Abo-Taleb, Ahmed Agung Satrio Nugroho agus sukarno Agus Suprajitno Agus Suprajitno Ahmed Abo-Taleb Ahmed S. Samra Ahsraf Ashraf Khalil Amir, Afandi Andrianto, Dian Andri Arinan Putra Aser Anou Asri, Mohd Hafizulhadi Mohd Bakhtiar Indra Kurniawan Berkah Fajar Tamtomo kiono Brama Sakti Handoko Brama Sakti Handoko Daniel Triswahyudi Dedi Nugroho Dedy Syamsuar Deshinta Arrova Dewi Diah Arie WK Eka Nuryanto Budi Susila fajar pujiyanto Fitri Anindyahadi Gunawan Alim Habib ALzaroug Abobaker Wardeko Hadi Pranoto Haikal Satria, Muhammad Hani A. M. Harb Hapsari, Jenny Putri I Nyoman Gede Muliawan Imam Much Ibnu Subroto Iska Yanuartanti Iwan Setiawan Jawarneh, Malik Jenny Putri Hapsari Kamilah Syed Yusof, Sharifah Kamilah, Sharifah khaled jemah basher Khalifa Mansour Khalifa Kuat Supriyadi Laksamana Rajendra Haidar Lawrence Adi Supriyono Lukman Abdul Fatah M Satria M. Gaballah, Waleed M. Haider Abu Yazid M. Haikal Satria M. Haikal Satria M. Ulin Nuha Maivi Kusnandar Mohamad Habib Ahsan Mohammad Alfian Mudzakir Mohd Hafizulhadi Mohd Asri Muhamad Haddin Muhammad ‘Atiq Muhammad Haikal Satria Muhammad Haikal Satria Muhammad Haikal Satria Muhammad Qomaruddin Muhammad Qomaruddin Muhammad Qomaruddin Muhammad Rifai Rifai Munaf Ismail Munaf Ismail Mustaqim Musyahar, Ghoni Nashruddin Anwar Nuha, M. Ulin Praditya, Muhammad Irfan Nur Pramono Mukti Wibowo Putra, Arinan Qirom Qirom Renantivani, Alivia Reza Yoga Diputra Riky Maulana Firdaus S Sukiran S. Kamilah S. Y S. Kamilah S. Y, S. Kamilah S. Y S. Samra, Ahmed Sarman Sarman Sarman Sarman Sarman, Sarman Satria, M Satria, M. Haikal Satria, Muhammad Haikal Setyanto, Barry Nur Sharifah Kamilah Syed Yusof Sharifah Kamilah Syed Yusof Sharifah Kamilah Syed Yusof Sharifah Yusof Sigit Prakosa Adhi Nugraha Sonny Hady Winoto Sri Arttini Dwi Prasetyawati Sucipto, Dany Sukarno Budi Utomo Sunaryo Sunaryo Sunaryo, Sunaryo Sunu Arsy Pratomo Suprawikno . Supriyadi, Kuat Suryani Alifah Sutarta Tarta Suyanta Suyanta Tri Basuki Kurniawan Triswahyudi, Daniel Vugar Abdullayev Waleed M. Gaballah Yahya Hidayatullah Yazid, M. Haider Abu Yudha Adi Putra Yudistira Marsya Puvindra Yusof, Sharifah Zakariya Ali Saeid Saeid