Novie Ayub Windarko
Program Studi Teknik Elektro Industri, Departemen Teknik Elektro, Politeknik Elektronika Negeri Surabaya

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FEED FORWARD NEURAL NETWORK SEBAGAI ALGORITMA ESTIMASI STATE OF CHARGE BATERAI LITHIUM POLYMER Dwi Prasetyo, Mohammad Imron; Tjahjono, Anang; Windarko, Novie Ayub
KLIK- KUMPULAN JURNAL ILMU KOMPUTER Vol 7, No 1 (2020)
Publisher : Lambung Mangkurat University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/klik.v7i1.290

Abstract

Estimasi State Of Charge (SOC) baterai merupakan parameter terpenting dalam Battery Management System (BMS), terlebih sebagai aplikasi dari mobil listrik dan smart grid. SOC tidak dapat dilakukan pengukuran secara langsung, sehingga diperlukan metode estimasi untuk mendapatkan nilai tersebut. Beberapa metode yang pernah diusulkan adalah coloumb counting dan open circuit voltage. Akan tetapi coloumb counting memiliki kelemahan dalam hal inisialisasi SOC awal dan memiliki ketergantungan terhadap sensor arus. Sedangkan metode open circuit voltage hanya dapat digunakan pada baterai dalam kondisi idel. Pada penelitian ini diusulkan metode algoritma Feed Forward Neural Network (FFNN) untuk estimasi SOC baterai lithium polymer. Algoritma ini dapat menyelesaikan sistem nonlinier seperti yang dimiliki oleh baterai lithium polymer. Arsitektur FFNN dibangun dua kali (dual neural) untuk estimasi OCV dan SOC. FFNN pertama dengan input tegangan, arus,  dan waktu charging maupun discharging untuk estimasi OCV. OCV hasil training neural pertama digunakan sebagai input FFNN kedua untuk estimasi SOC. Hasil dari estimasi ini didapatkan dengan nilai hidden neuron 11 pada neural pertama dan hidden neuron 4 pada neural kedua.Keywords: SOC, BMS, Coloumb Counting, OCV, FFNNEstimasi State Of Charge (SOC) baterai merupakan parameter terpenting dalam Battery Management System (BMS), terlebih sebagai aplikasi dari mobil listrik dan smart grid. SOC tidak dapat dilakukan pengukuran secara langsung, sehingga diperlukan metode estimasi untuk mendapatkan nilai tersebut. Beberapa metode yang pernah diusulkan adalah coloumb counting dan open circuit voltage. Akan tetapi coloumb counting memiliki kelemahan dalam hal inisialisasi SOC awal dan memiliki ketergantungan terhadap sensor arus. Sedangkan metode open circuit voltage hanya dapat digunakan pada baterai dalam kondisi idel. Pada penelitian ini diusulkan metode algoritma Feed Forward Neural Network (FFNN) untuk estimasi SOC baterai lithium polymer. Algoritma ini dapat menyelesaikan sistem nonlinier seperti yang dimiliki oleh baterai lithium polymer. Arsitektur FFNN dibangun dua kali (dual neural) untuk estimasi OCV dan SOC. FFNN pertama dengan input tegangan, arus,  dan waktu charging maupun discharging untuk estimasi OCV. OCV hasil training neural pertama digunakan sebagai input FFNN kedua untuk estimasi SOC. Hasil dari estimasi ini didapatkan dengan nilai hidden neuron 11 pada neural pertama dan hidden neuron 4 pada neural kedua.Kata kunci: SOC, BMS, Coloumb Counting, OCV, FFNN
Comparative Study of Modulation-Based Individual Inverter Techniques for Direct and Inverse by using Star-Connection Induction Motor in Extra Low Voltage Application Wishnuprakasa, Ardhia; Purwanto, Era; Windarko, Novie Ayub
EMITTER International Journal of Engineering Technology Vol 4, No 2 (2016)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3191.69 KB) | DOI: 10.24003/emitter.v4i2.154

Abstract

In this study, the IEEE 519 Standard as a basis benchmarking for voltage (THDV) and current (THDI) in draft performance. Comparative Study based onthree-techniques of 2-Level Converter (2LC) by using a Star-Connection Induction Motor (Y-CIM) in ExtraLow Voltage (ELV) Configuration.For the detail explanation, a primary inverter as Direct-Inverterby PWMdirect (PWM) degreesand asecondary inverter as Inverse-Inverterby PWMinverse(PWM + PI) degrees. It tends a modified algorithm,for eachof SPWM in six rules, and FHIPWM in 5th harmonics Injectedin standard modulation as the purpose for the Open-Ends of Pre-Dual Inverter in Decoupled SPWM for twelve rules, and Decoupled FHIPWM in combination of 5th harmonics Injectedin combination of two-standard-modulation. Those techniques are the purpose of two-inverter combination, which namelythe Equal Direct-Inverse (EDI) algorithmproduct of prototyping in similarities. The observation is restricted in voltage scope between Simulation by using Power Simulator (PSIM)and Application by using Microcontroller ARM STM32F4 Discovery.
AC-DC PFC Converter Using Combination of Flyback Converter and Full-bridge DC-DC Converter Efendi, Moh. Zaenal; Rizal, Abdul; Erzanuari, Aldi; ., Suryono; Windarko, Novie Ayub
EMITTER International Journal of Engineering Technology Vol 2, No 1 (2014)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6864.867 KB)

Abstract

This paper presents a combination of power factor correction converter using Flyback converter and Full-bridge dc-dc converter in series connection. Flyback converter is operated in discontinuous conduction mode so that it can serve as a power factor correction converter and meanwhile Full-bridge dc-dc converter is used for dc regulator. This converter system is designed to produce a 86 Volt of output voltage and 2 A of output current. Both simulation and experiment results show that the power factor of this converter achieves up to 0.99 and meets harmonic standard of IEC61000-3-2.Keywords: Flyback Converter, Full-bridge DC-DC Converter, Power Factor Correction.
Reduction of Total Harmonic Distortion (THD) on Multilevel Inverter with Modified PWM using Genetic Algorithm Raharja, Lucky Pradigta Setiya; Q., Ony Asrarul; Arief, Zainal; Windarko, Novie Ayub
EMITTER International Journal of Engineering Technology Vol 5, No 1 (2017)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3130.646 KB) | DOI: 10.24003/emitter.v5i1.174

Abstract

In this research, modified PWM has been applied to the multilevel inverter (MLI) single-phase three-level diode clamp full bridge. Modified PWM is performed to produce minimum Total Harmonic Distortion (THD) the voltage because the quality of the good voltage is indicated by small THD. The THD indicates the quality of AC voltage source. The THD standard by the IEEE STD 519-1992 Harmonic Voltage Limits is 5% and the Pacific Corp standard is 8%, if the THD value is greater than the THD standard it can cause the electronic load to be damaged due to the damaged waveform. Modified PWM is applied by adding a 50 Hz sinusoidal reference signal with a sinusoidal signal which has a certain amplitude, frequency and phase shift angle. The frequency of the adder signal is the frequency at which the value of the individual harmonic voltage appears (n harmonic). To get maximum result, optimization using Genetic Algorithm (GA) method to determinate amplitude & phase shift angle done. The result of implementation hardware with modified PWM shows smaller THD voltage compared to the THD voltage with Sinusoidal Pulse Width Modulation (SPWM) switching up to 0.19 or decrease 65,51 % for modified PWM of harmonic injection n = 7 with GA optimization ma= 0.8 (A=0.0936 and ø = 0 rad) and up to 0.08 or decrease 12,30 % for modified PWM of harmonic injection n = 22 with GA optimization ma = 0.4 (A=0.1221 and ø = 0 rad).
AC-DC PFC Converter Using Combination of Flyback Converter and Full-bridge DC-DC Converter Efendi, Moh. Zaenal; Rizal, Abdul; Erzanuari, Aldi; ., Suryono; Windarko, Novie Ayub
EMITTER International Journal of Engineering Technology Vol 2, No 1 (2014)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6864.867 KB) | DOI: 10.24003/emitter.v2i1.21

Abstract

This paper presents a combination of power factor correction converter using Flyback converter and Full-bridge dc-dc converter in series connection. Flyback converter is operated in discontinuous conduction mode so that it can serve as a power factor correction converter and meanwhile Full-bridge dc-dc converter is used for dc regulator. This converter system is designed to produce a 86 Volt of output voltage and 2 A of output current. Both simulation and experiment results show that the power factor of this converter achieves up to 0.99 and meets harmonic standard of IEC61000-3-2.Keywords: Flyback Converter, Full-bridge DC-DC Converter, Power Factor Correction.
Fuzzy Gain Scheduling of PID (FGS-PID) for Speed Control Three Phase Induction Motor Based on Indirect Field Oriented Control (IFOC) Ferdiansyah, Indra; Purwanto, Era; Windarko, Novie Ayub
EMITTER International Journal of Engineering Technology Vol 4, No 2 (2016)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5485.475 KB) | DOI: 10.24003/emitter.v4i2.147

Abstract

This paper propose about using PID control system based on Kp, Ki, and Kd parameter determination with scheduling process from fuzzy logic. Control system is used to arrange speed of three phase induction motor using IFOC method. This method can be minimized the main problem from speed control of induction motor which is a transient condition. The robustness validation from this system use testing process of dynamic speed which is compared with the other control system to know the system performance in transient condition such as (rise time, overshoot, undershoot and settling time). The result shows using the proposed system has better performance responses which is requiring 0.001 seconds time in transient condition up to steady state condition without overshoot and undershoot problem.
DESIGN AND IMPLEMENTATION OF BATTERY CHARGER WITH POWER FACTOR CORRECTION USING SEPIC CONVERTER AND FULL-BRIDGE DC-DC CONVERTER Efendi, Moh. Zaenal; Windarko, Novie Ayub; Amir, Moh. Faisal
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 4, No 2 (2013)
Publisher : Research Centre for Electrical Power and Mechatronics, Indonesian Istitutes of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.618 KB) | DOI: 10.14203/j.mev.2013.v4.75-80

Abstract

This paper presents a design and implementation of a converter which has a high power factor for battery charger application. The converter is a combination of a SEPIC converter and a full-bridge DC-DC converter connected in two stages of series circuit. The SEPIC converter works in discontinuous conduction mode and it serves as a power factor corrector so that the shape of input current waveform follows the shape of input voltage waveform. The full-bridge DC-DC converter serves as a regulator of output voltage and operates at continuous conduction mode. The experimental results show that the power factor of this converter system can be achieved up to 0.96.
RANCANG BANGUN PHOTOVOLTAIC SOLAR TRACKER DENGAN REFLEKTOR CERMIN DATAR BERBASIS MIKROKONTROLER Prasetyono, Eka; Windarko, Novie Ayub; Badriyah, Luluk
INOVTEK POLBENG Vol 8, No 2 (2018): INOVTEK VOL.8 NO 2 - 2018
Publisher : INOVTEK POLBENG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (671.7 KB)

Abstract

Energi listrik yang mampu dibangkitkan oleh photovoltaic (PV) sangat dipengaruhi oleh faktor-faktor eksternal seperti intensitas iradiasi matahari, suhu lingkungan dan orientasi sudut kemiringan dari pemasangan PV.  Intensitas iradiasi matahari di permukaan bumi selalu berubah-ubah nilainya seiring dengan pergerakan matahari di langit mulai matahari terbit sampai terbenam. Pada makalah ini akan dibahas PV solar tracker dengan reflektor cermin datar untuk mendapatkan intensitas iradiasi matahari yang maksimal sepanjang hari. Penggunaan reflektor dalam makalah ini bertujuan untuk meningkatkan diffuse irradiance dan memperpendek jarak tempuh pergerakan solar tracker sehingga lebih hemat energi. Solar tracker didesain bergerak otomatis mengikuti posisi matahari dengan memperbarui sudut solar tracker sesuai sun hour angle (sudut jam matahari) secara periodik 1 jam sekali. Penentuan sudut solar tracker dikontrol oleh mikrokontroler ATMega16. Hasil percobaan lapangan diperoleh daya yang mampu dihasilkan PV menggunakan solar tracker dengan reflektor cermin datar setiap jamnya mengalami kenaikan daya rata-rata sebesar 76.05% dibandingkan dengan PV terpasang statis. Secara komulatif dalam satu hari energi didapatkan posentase kenaikan energi dapat mencapai 75.20% dibandingkan dengan PV yang dipasang secara statis. Sedangkan konsumsi energi untuk menggerakkan solar tracker memerlukan energy kurang dari 0.15% dari total energi yang mampu dihasilkan oleh PV.
PERBANDINGAN METODE MAXIMUM POWER POINT TRACKER UNTUK PV BATTERY CHARGER DENGAN PSIM Prakoso, Dimas Nur; Afandi, Achmad; Arrijal, Miftahul; Abdurrahman, Rizqy; Windarko, Novie Ayub
Jetri : Jurnal Ilmiah Teknik Elektro Jetri, Volume 17, Nomor 2, Februari 2020
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jetri.v17i2.6076

Abstract

Increasing energy requirements require us to create renewable energy that is environmentally friendly such as utilizing sunlight. By using tracking techniques such as Maximum Power Point Tracking (MPPT) will produce maximum power so that the solar cell works efficiently. The MPPT method which is simulated in this PSIM software is Incremental Conductance, Incremental Resistance and Hill Climbing. By implanting the MPPT Incremental Conductane Method in the solar cell, a maximum power of 91,47 Watt will be generated with a time of 0.018 seconds, whereas if implanting the MPPT Incremental Resistance method in a solar cell will get a maximum power of 90.35 watt, a faster time than the previous method, and if implanting the MPPT Hill Climbing method to make the solar cell efficient it is necessary to add the KMPP value equal to 5 to get the maximum MPP value and not oscillate. So the Incremental Conductance method by adding a variable step size should be use to search the maximum power from all three methods . Kebutuhan energi yang semakin tinggi mengharuskan kita untuk menciptakan energi terbarukan yang ramah lingkungan seperti memanfaatkan cahaya matahari. Dengan menggunakan Teknik tracking seperti Maximum Power Point Tracking MPPT (MPPT) akan menghasilkan daya yang maksimal sehingga solar cell bekerja secara efesien.  Metode MPPT yang disimulasikan di software PSIM ini adalah Incremental Conductance, Incremental Resistance dan Hill Climbing. Dengan menanamkan Metode MPPT Incremental Conductane pada solar cell maka akan dihasilkan daya maksimum sebesar 91,47 Watt dengan waktu 0,018 detik, sedangkan jika menanamkan metode MPPT Incremental Resistance pada solar cell akan di dapatkan daya maksimum sebesar 90,35 watt dengan waktu yang lebih cepat dari metode sebelumnya, dan jika menanamkan metode MPPT Hill Climbing untuk mengefisienkan solar cell diharuskan menambahkan nilai KMPP sama dengan 5 untuk  mendapatkan nilai MPP yang maksimal dan tidak berosilasi. Jadi jika untuk mencari daya yang sangat maksimal dari ketiga metode sebaiknya menggunakan metode Incremental Conductance dengan menambahkan variable step size.
A Full-Bridge Bidirectional DC-DC Converter with Fuzzy Logic Voltage Control for Battery Energy Storage System Prasetyono, Eka; Sunarno, Epyk; Fuad, Muchamad Chaninul; Anggriawan, Dimas Okky; Windarko, Novie Ayub
EMITTER International Journal of Engineering Technology Vol 7, No 1 (2019)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (903.883 KB) | DOI: 10.24003/emitter.v7i1.333

Abstract

Renewable energy sources require an energy storage system because its are fluctuating and electricity producing at certain times, even sometimes not in accordance with the needs of the load. To maintain continuity of electricity, smart battery energy storage system is needed. Therefore, this paper of a full-bridge bidirectional DC-DC Converter (FB-BDC) with Fuzzy Logic Control (FLC) is designed and implemented for battery energy storage application. The FLC has error and delta error of voltage level as input and duty cycle of FB-BDC as output. The FB-BDC is controlled by a microcontroller ARM Cortex-M4F STM32F407VG for voltage mode control. The FB-BDC topology is selected becuase battery storage system needed isolated and need high voltage ratio both for step-up and step-down. The main purpose of FB-BDC to perform bidirectional energy transfer both of DC-Bus and battery. Moreover, FB-BDC controls the DC-Bus voltage according to referenced value. The power flow and voltage on DC-Bus is controlled by FLC with voltage mode control. The experiment result shows the ability of FLC  voltage mode control to control FB-BDC on regulate charging voltage with an error 1% and sharing voltage 1.5% form referenced value.