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All Journal Jurnal Mahasiswa TEUB Jurnal EECCIS Jurnal Surya Masyarakat Cendekia: Jurnal Pendidikan dan Pembelajaran Jurnal Sosiohumaniora Kodepena (JSK) Unri Conference Series: Community Engagement
Tri Nurwati
Jurusan Teknik Elektro Fakultas Teknik Universitas Brawijaya
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Journal : Jurnal EECCIS

 1 
Discrete Implementation of a PI Controller for Three-Phase PWM Rectifier Nurwati, Tri; Gradianto, Gasa; Siswoyo, Bambang; Bashir Mosaddegh; I Nyoman Wahyu Satiawan
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 18 No. 2 (2024)
Publisher : Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jeeccis.v18i2.1666

Abstract

Rectifiers are becoming more prevalent in a wide range of applications, including power supplies for microelectronics, household electrical devices, battery charging, and power conversion in high-voltage direct current (HVDC) transmission systems. Conventional rectifiers often employ uncontrolled diodes, which have the drawback of generating a fixed output voltage that cannot be modified. There is a requirement for a regulated rectifier, specifically a three-phase PWM Rectifier that transforms AC voltage into DC voltage with an output voltage that surpasses the input voltage and can be modified as per requirements. This study explores the comparison between s-domain and z-domain PI controller designs in the context of controlling a three-phase pulse width modulation (PWM) rectifier. Applying the dual-closed-loop control technique with the pole-zero cancellation approach, we can calculate the PI parameters for controlling the current and voltage in the circuit. The values of the parameters are as follows: K_pc = 4, K_ic = 100, K_pv = 0.097, and K_iv = 4.85. Applying the forward Euler method to transform the PI controller from the s domain to the z domain. The test results for the PWM Rectifier PI controller were conducted in both the s-domain and z-domain. As per the setpoint, a three-phase voltage source with a value of 220 Volts was used, resulting in a stable DC voltage output of 600 Volts.
Optimisation of Overload and Overcurrent Protection to Improving Operational Efficiency of Cone Crusher Motor Kurniawan, Muhammad; Hasanah , Rini Nur; Nurwati, Tri; Soltana Guesmi
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 19 No. 1 (2025)
Publisher : Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jeeccis.v19i1.1764

Abstract

The mining industry occupies a pivotal position in the global economy, particularly in terms of supplying indispensable raw materials. A primary challenge confronting this industry is the imperative to preserve the reliability and operational efficiency of equipment, notably electric motors utilized in cone crusher machinery. The presence of overload and overcurrent issues in motors has the potential to induce operational disruptions, a decline in efficiency, and the prospect of irreversible damage. This research endeavors to optimize the overload and overcurrent protection system on the cone crusher motor to enhance operational efficiency at PT Amman Mineral Nusa Tenggara. The proposed methodology involves the utilization of MATLAB Simulink software, employing models of "Asynchronous Machine," "Thermal Overload Relay," and "Overcurrent Relay." The simulation results, as depicted by MATLAB Simulink, reveal that the initial start-up current reaches 988.86 A at 0.01 seconds, subsequently stabilizing within the range of 80-121 A. This value exceeds the nominal capacity of the motor, which can lead to overheating and increased operational costs. Subsequent to optimization through the resetting of the protection parameters, including adjustments to the pickup current and time-current curve, the risk of unnecessary trips can be mitigated.
Perbaikan Unjuk Kerja Boost Converter untuk Panel Surya Menggunakan Sliding Mode Controller Nurwati, Tri; Wijono, Wijono; Hikam, Aldi Lutfil; Hasanah, Rini Nur
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 15 No. 1 (2021)
Publisher : Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jeeccis.v15i1.692

Abstract

Salah satu cara memanfaatkan sumber energi terbarukan adalah dengan menggunakan sel surya yang mengubah energi cahaya matahari menjadi energi listrik. Sebuah converter umumnya diperlukan untuk menyesuaikan tegangan keluaran sel surya dengan kebutuhan aplikasinya. Salah satu jenis konverter yang dapat digunakan yaitu konverter boost, yang dapat menghasilkan tingkat tegangan pada keluarannya lebih tinggi dari masukannya. Keluaran dari sel surya yang bervariasi tergantung pada perubahan iradiasi cahaya matahari menjadi masukan bagi konverter. Pada penelitian ini metode pengendalian sliding mode control (SMC) dimanfaatkan untuk mengurangi osilasi pada tegangan keluaran konverter boost. Penelitian dilakukan dengan cara simulasi menggunakan MATLAB/Simulink pada kondisi sistem pengendalian loop terbuka dan loop tertutup. Nilai settling time dan selisih tegangan keluaran saat sebelum terjadi gangguan dan setelah terjadi gangguan berupa tegangan masukan yang bervariasi dan beban yang bervariasi dianalisis.
Optimasi Kontrol untuk Variabel Flow Rate dan Temperatur Furnace Berbasis Solusi Persamaan Riccati Rusli, Mochammad; Nurwati, Tri; Tarigan, Faldano Bastian
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 15 No. 3 (2021)
Publisher : Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jeeccis.v15i3.1552

Abstract

Dalam pengoperasian furnace, uap yang dihasilkan furnace harus dijaga pada suhu 370-375oC dan tidak boleh melebihi 375oC untuk mencegah terjadinya cracking pada waste oil. Salah satu sistem kontrol yang dapat digunakan untuk mengontrol suhu furnace adalah sistem kontrol optimal dengan metode LQR (Linear Quadratic Regulator). Penerapan LQR ini mampu mempercepat waktu keadaan mantap pada sistem. Performansi sistem telah memenuhi syarat keoptimalan sebuah sistem dan output flow rate dan suhu telah memenuhi keinginan yaitu, nilai Steady state flow rate sebesar 349.9 g/s atau 97.194 kg/jam, nilai tr flow rate sebesar1.4 detik, nilai ts flow rate sebesar 11 detik, dan nilai Mp flow rate sebesar 0.021%. Kemudian nilai Steady state suhu sebesar 370.9oC, nilai tr suhu sebesar 8 detik, nilai ts suhu 20.5 detik, nilai Mp suhu 0%, dan nilai Ess suhu sebesar 0.9861%.
Enhancing Speed Control of BLDC Motors Using Zeta Converter for Small Electric Vehicles Hafidh, Muhammad Yusril; Wibawa, Unggul; Nurwati, Tri; E. Wakama, Tamunonengi
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 17 No. 1 (2023)
Publisher : Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jeeccis.v17i1.1648

Abstract

The movement to reduce emissions can be done by developing renewable energy and electric vehicles derived from renewable fuels. This electric vehicle will use batteries and motors so that BLDC motor was chosen in this study. BLDC motors use electronic commutation so a controller is needed. The controller used is a PI controller assisted by the hysteresis current controller. The output of the hysteresis current controller needs to be converted to a DC voltage using a DC-DC converter. One of the DC-DC converters is a zeta converter which can increase or decrease the voltage so that it can be used when the load voltage varies as will be used in this study. The results showed that the BLDC motor connected to the zeta converter with the controller can be used when the load torque varies. If the applied varying load torque does not exceed the rated torque, the actual speed will return to the reference speed without exceeding a 10% error. On the other hand, the actual speed will return to the reference speed by exceeding the 10% error, if the applied varying load torque exceeds the rated torque.
Co-Authors Abdillah, Moch Naufal Achmad, Baihaqi Akbar, Alif Aulia Alfarizy, Muhammad Mahdiy Amiruddin, M. Fero Astari, Bela Natasya Badriyah, Intan Layla Bambang Siswoyo Bashir Mosaddegh Basrowi Basrowi, Basrowi Bernadine, Muhammad Zaidan E. Wakama, Tamunonengi Fatahillah, Muhammad Firdausi, Aditya Mahardika Ganendra, Risang Ghifari, Ahmad Goegoes Dwi Nusantoro Gradianto, Gasa Gumintang, Adnan Hafidh, Muhammad Yusril Hasanah , Rini Nur Hayyan, Muhammad Rafif Hidayat, n/a Hikam, Aldi Lutfil I Nyoman Wahyu Satiawan Inayati, Dian Megantara, Septian Fajar Moch. Dhofir Mochammad Roviq Mochammad Rusli, Mochammad Muhammad Aziz Muslim Muhammad Kurniawan Nanang Sulistiyanto Nisa, Rizqa Ulya Fakhrun Pramudya, Lembat Aji Prasetyo, Achmad Ari Dwi Prastiawan, Hilmi Arif Pratama, Muhammad Arkan Restu Purba, Yobel Yehezkiel Putri, Intan Anggraeni Maryanda Putu Hadi Setyarini Ramadhan, Muhammad Dicky Ramadhan, Muhammad Indrata Rasyid, Athallah Rini Nur Hasanah Rizal, Mohammad Iqbal Fakhrur Saragih, Jhosua Capricorn Satria, Muchamad Iqbal Sinaga, Andreas Sober Sisca Fajriani Sitompul, Ezra Ananda Soltana Guesmi Tarigan, Faldano Bastian Teguh Utomo Thuhu, Dias Satriyo Unggul Wibawa Waru Djuriatno Widyantoro, Salsa Wijono Wijono Zainul Abidin