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All Journal Jurnal Teknik ITS Perfecting a Video Game with Game Metrics Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Jurnal Intake : Jurnal Penelitian Ilmu Teknik dan Terapan Indonesian Journal of Electrical Engineering and Computer Science JAREE (Journal on Advanced Research in Electrical Engineering) Jurnal Fortech Journal of Railway Transportation and Technology Sewagati Jurnal Rekayasa elektrika
Soedibyo Soedibyo
Sepuluh Nopember Institute Of Technology (ITS)
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation

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Optimal Design of Fuel-cell, Wind and Micro-hydro Hybrid System using Genetic Algorithm Soedibyo Soedibyo; Heri Suryoatmojo; Imam Robandi; Mochamad Ashari
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 10, No 4: December 2012
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v10i4.858

Abstract

The target of stand-alone hybrid power generation system was to supply the load demand with high reliability and economically as possible. An intelligent optimization technique using Genetic Algorithm is required to design the system.This study utilized Genetic Algorithm method to determine the optimal capacities of hydrogen, wind turbines and micro-hydro unit according to the minimum cost objective functions.The minimum cost valutes to these two factors. In this study, the cost objective function included the annual capital cost, annual operation maintenance cost, annual replacement cost and annual customer damage cost. The proposed method will be used to optimize the hybrid power generation system located in Leuwijawa village in Central Java of Indonesia. Simulation results showed that the optimum configuration can be achieved using 19.85 ton of hydrogen tanks, 21x100 kW wind turbines and 610 kW of micro-hydro unit respectively
Perhitungan CCT (Critical Clearing Time) Berbasis Trajectory Kritis Menggunakan Persamaan Simultan pada Sistem yang Terhubung dengan Smart Grid Rachma Prilian Eviningsih; Ardyono Priyadi; Soedibyo Soedibyo
Jurnal Teknik ITS Vol 4, No 2 (2015)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (802.717 KB) | DOI: 10.12962/j23373539.v4i2.9506

Abstract

Gangguan yang terjadi pada sistem tenaga listrik dapat menyebabkan terjadinya ketidakstabilan pada sistem tenaga listrik dan agar sistem kembali dalam kondisi steady state, maka gangguan tersebut harus segera dihilangkan sesegera mungkin. Oleh karena itu, analisis kestabilan transien pada sistem tenaga listrik mempunyai peranan yang sangat penting dan menjadi pusat perhatian utama. Pada tugas akhir ini akan dilakukan perhitungan CCT dengan menggunakan metode critical trajectory dengan penambahan persamaan simultan. Dengan adanya penambahan persamaan simultan pada matriks Jacobian akan mereduksi jumlah persamaannya menjadi sama dengan jumlah variabelnya sehingga proses integrasi numerik dapat dilakukan dengan cepat dan hasilnya akan lebih akurat jika dibandingkan dengan menggunakan metode lainnya. Sistem yang digunakan adalah sistem smart grid 3-generator 9-bus saat terhubung dengan infinite bus maupun saat dalam kondisi stand-alone.
Studi Operasi Paralel Jaringan Distribusi yang Disuplai oleh Satu Gardu Induk pada Sistem Kelistrikan Distribusi Jawa Tengah. Studi Kasus : GI Srondol Semarang Muhammad Khoirul Anam; Ontoseno Penangsang; Soedibyo Soedibyo
Jurnal Teknik ITS Vol 7, No 2 (2018)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (86.241 KB) | DOI: 10.12962/j23373539.v7i2.31051

Abstract

Jaringan distribusi tenaga listrik biasanya beroperasi menggunakan sistem distribusi radial, untuk meningkatkan keandalan jaringan distribusi dari sisi kualitas serta kontiyuitas penyaluran daya listriknya perlu dilakukan modifikasi sistem distribusi dari radial menjadi loop, perubahan jaringan distribusi terjadi karena dua kemungkinan. Pertama untuk mengoptimalkan operasi jaringan dengan tujuan mengurangi penurunan tegangan dan rugi daya sehingga keandalan sistem meningkat. Kedua ketika dibutuhkan pelimpahan daya dari satu penyulang ke yang lainnya, sebagai tindakan pencegahan dari kelebihan beban atau bahkan pemutusan beban. Sebagai contoh dalam kasus kegagalan operasi paralel di penyulang gardu induk Srondol pada kelistrikan distribusi Jawa Tengah. Dari hasil penelitian ini, didapatkan bahwa analisis yang akurat dan tepat dari kondisi eksisting penyulang yang akan diparalel dapat membantu untuk keberhasilan operasi sistem distribusi, menghindari gangguan yang signifikan dan mencegah terjadinya pemadaman pelanggan. Pada kondisi normal dari hasil simulasi Load Flow ETAP diperoleh trafo 2 GI Srondol mengalami overload sebesar 799 A, sehingga menghindari pemadaman diperlukan pelimpahan beban. Dari operasi paralel penyulang SRL 1 dan SRL 3 terjadi peningkatan arus yang signifikan pada penyulang SRL 1 sebesar 588 A yang mengakibatkan CB SRL 1 menjadi trip, sehingga terjadi pelimpahan beban ke trafo 2 sebesar 1094 A dan mengakibatkan pemadaman total pada trafo 2. Sedangkan saat operasi paralel penyulang SRL 2 dan SRL 3 peningkatan arus yang terjadi lebih kecil, sehingga sistem masih dalam kondisi aman dan proses pelimpahan beban berhasil dilakukan.
Predictive Duty Cycle of Maximum Power Point Tracking Based on Artificial Neural Network and Bootstrap Method for Hybrid Photovoltaic/ Wind Turbine System Considering Limitation Voltage of Grid Feby Agung Pamuji; Nurvita Arumsari; Mochamad Ashari; Hery Suryoatmojo; Soedibyo Soedibyo
JAREE (Journal on Advanced Research in Electrical Engineering) Vol 4, No 2 (2020): October
Publisher : Department of Electrical Engineering ITS and FORTEI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25796216.v4.i2.119

Abstract

In this paper, we propose a new control-based the neural network and bootstrap method to get the predictive duty cycle for the maximum power point of hybrid Photovoltaic (PV) and Wind Turbine generator system (WTG) connected to 380 V grid. The neural network is designed to be controller by learning the data control of multi-input DC/ DC converter. The artificial neural network (ANN) needs many data for training then the ANN can give the predictive duty cycle to multi input DC/ DC converter. To get much data, we can use the bootstrap method to generate data from the real data. From Photovoltaic characteristic, we can get 344 real data after the data are made by bootstrap method we can get 8000 data. The 8000 data of PV can be used for training artificial neural network (ANN) of PV system. From wind turbine characteristic we can get 348 real data after the data are made by bootstrap method we can get 6000 data. The 6000 data of WT can be used for training artificial neural network of WT system. This new control has two responsibilities, are to shift the voltage of PV and WTG to optimum condition and to maintain the stability of grid system. From the simulation results those can be seen that the power of hybrid PV / WTG system using MPPT controller is in maximum power and has constant voltage and constant frequency of grid system.Keywords: bootstrap, maximum power tracking, neural network, stability.
MPPT Control System Based on Incremental Conductance and Constant Voltage using Coupled Inductor-Capacitor Zeta Converter in hybrid PV-Wind Turbine System Soedibyo Soedibyo; Mohammad Ridwan; Gusti Rinaldi Zulkarnain; Andri Pradipta; Sjamsjul Anam; Mochamad Ashari
JAREE (Journal on Advanced Research in Electrical Engineering) Vol 1, No 2 (2017): October
Publisher : Department of Electrical Engineering ITS and FORTEI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25796216.v1.i2.24

Abstract

This paper proposes a method of maximum power point tracking control using Incremental Conductance employed in hybrid photovoltaic-wind turbine for DC micro-grid system. The rapid growth of renewable energy using photovoltaic (PV) and wind turbine due to low operational cost and easy to implementation. Improvement of the efficiency of PV and wind turbine based on incremental conductance is the solution to get maximum power in PV and Wind Turbine. The proposed method uses variable step to achieve maximum power with high speed tracking, high efficiency and low steady state error calculation. The performance of the MPPT technique has been applied in dc-dc boost converter. Moreover, Zeta Converter using Coupled Inductor-Capacitor is added for maintain constant voltage in passive load. This high gain converter can reach 311 Volt DC with 1000 W output power and high efficiency up to 90%. The effectiveness of proposed method is implemented in two hybrid system using PV and wind turbine source. Keywords: incremental conductance technique; maximum power point tracking; Zeta Converter using Coupled Inductor-Capacitor. 
Non-Inverting Cascaded Bidirectional Buck-Boost DC-DC Converter with Average Current Mode Control for Lithium-Ion Battery Charger Heri Suryoatmojo; Indra Anugrah Pratama; Soedibyo .
JAREE (Journal on Advanced Research in Electrical Engineering) Vol 5, No 2 (2021): October
Publisher : Department of Electrical Engineering ITS and FORTEI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/jaree.v5i2.167

Abstract

In order to develop renewable energy, it also needs to enhance the developing of supporting elements. For example, lithium-ion batteries as a component of energy storage. Lithium-ion batteries (Li-ion) have been chosen as energy storage devices for portable equipment, unmanned Aerial Vehicle (UAV) and grid storage systems. But there is a problem such as the process of charging the battery for UAV. Conventional converters used in those chargers have disadvantages such as limited power, lower voltage gain and also high current stress. Therefore, such converters are not efficient to be used for charging the battery. This paper proposes a cascaded bidirectional buck-boost converter for charging the battery. This converter can be operated bidirectional and have better rated power and higher voltage gain. Also, this topology has the same polarity with the input. From the test results, the converter can work in either forward or backward power flow. This converter is working in both buck or boost mode and has an efficiency of 83% in buck mode and 81% for boost mode. The charging process is about 83 minutes until SOC approximately 90 – 95.Keywords: battery charger, cascaded bidirectional buck – boost converter, constant current, li-ion introduction.
A Design of Standalone Hybrid PV/Wind/Fuel cell Generation System and Hydrogen Electrolyzer With Local Controller for Remote Areas Soedibyo Soedibyo; Sjamsjul Anam; Andri Pradipta
JAREE (Journal on Advanced Research in Electrical Engineering) Vol 3, No 2 (2019): October
Publisher : Department of Electrical Engineering ITS and FORTEI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25796216.v3.i2.101

Abstract

Integration of fuel cell and electrolyzer on DC bus is a promising alternative to solve voltage fluctuation and balance of power problems in a standalone hybrid renewable power generation systems. The hybrid renewable power generation systems consist of photovoltaic, wind turbine, fuel cell and hydrogen electrolyzer. Each the component integrated on DC bus through the converter DC – DC using local controller to supply the inverter which connected to the islanded load. Local controller in each part will make the system become flexible if there are additional generating units in the future. The local control methods used in this hybrid renewable power generation system is MPPT and constant voltage control. MPPT control applied to photovoltaic and wind turbine converters to maximize power generation from photovoltaic and wind turbine. Constant voltage controller applied to the fuel cell and electrolyzer converters to control the DC bus voltage alternately. This research is a new design system for remote areas by utilizing the potensial of renewable energy in the area. The result show the power quality and continuity of electricity services.Keywords: hybrid, hydrogen electrolyzer, fuel cell, local controller, photovoltaic, wind turbine.
Modelling and Control System Design of Zeta Converter Modification with Coupled Inductor - Capacitor for Seawater Battery Application (Case Study at Indonesian Fishing Boat) Soedibyo Soedibyo; Mohamad Ridwan; Adam Febranzah; Andri Pradipta
JAREE (Journal on Advanced Research in Electrical Engineering) Vol 1, No 1 (2017): April
Publisher : Department of Electrical Engineering ITS and FORTEI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25796216.v1.i1.3

Abstract

Seawater battery is a renewable energy resources that is generated by electrochemical process due to different water salinity. The electromotive force is determined by the number of membrane and ratio of water concentration. In fact, the seawater salinity is variant in ocean. It leads the electromotive force changes in every point (latitude and longitude) on the ocean. This research is presenting: 1) a model of seawater battery which is applied in fishing boat, 2) a design of zeta converter modiffication with coupled inductor and capacitor and PI controller to keep output voltage remain constant.The simulation result verifie the proposed system and control strategyKeywords: renewable energy resources, seawater battery, PI controller, zeta converter, coupled inductor, capasitor.
Optimal Design Of Stand Alone Hybrid PV / WTGS / Battery for Health Center Electricity System in Timor Leste Alfredo Gusmao; Imam Robandi; Soedibyo Soedibyo
JAREE (Journal on Advanced Research in Electrical Engineering) Vol 2, No 2 (2018): October
Publisher : Department of Electrical Engineering ITS and FORTEI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25796216.v2.i2.60

Abstract

The use of renewable energy sources as a power plant has become an alternative option to provide electrical energy sources in a health center in Timor Leste. In this study a standalone hybrid generator system design consisting of Photovoltaic (PV), Wind turbine generation system (WTGS) and battery as energy storage will be made. The PSO algorithm is used to design optimal generator and battery capacity to obtain economic value. Optimal results are obtained by taking into account the potential of wind and solar energy and loads. The application of hybrid generating systems with renewable energy sources has several problems that must be resolved. The energy generated by renewable energy power plants is intermittent. Then this system requires energy storage to achieve power balance. The simulation results in this study show how to get the optimal value by using PSO algoritm, to reach power balance with the optimal and economical design of generator and battery capacity. Keywords: Hybrid; PV; WTGS; Battery; Control, Optimal Sizing, PSO
Renewable Energy Source Enactment for Speed Control of BLDC Motor with Proportional Integral (PI) Controller Soedibyo Soedibyo; Muhammad Budi Rahayu Widodo; M. Ashari
JAREE (Journal on Advanced Research in Electrical Engineering) Vol 4, No 1 (2020): April
Publisher : Department of Electrical Engineering ITS and FORTEI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25796216.v4.i1.107

Abstract

This paper present about speed control of Brushless Direct Current (BLDC) Motor 1 kW in which supplied using Photovoltaic (PV) Array 1.5 kW that simulated using MATLAB 2016a.  Speed control of BLDC exactly depend on voltage condition, so speed control mean voltage control. Furthermore, Proportional Integral (PI) controller will be implemented to get best performance of the system during irradiance change or some load implemented. For detail analysis purpose, the simulation will do in some case such by vary irradiation of PV, Vary the speed reference then vary of load. From simulation result we get the information that dynamic irradiance, load and speed reference will influence the response stability of speed so do Power Consumption, Voltage and Current response.Keywords: brushless direct current (BLDC) motor, photovoltaic (PV), proportional integral (PI) controller.
Co-Authors Adam Febranzah Alcha Duta Septione Alfredo Gusmao Andri Pradipta Ardyono Priyadi Arief Riambodo Arif Priyohutomo Dedet Candra Riawan Dimas Adi Perwira Faanzir Faanzir Farid Dwi Murdianto Feby Agung Pamuji Feddy Setio Pribadi Gusti Rinaldi Zulkarnain Heri Suryoatmojo Hery Suryoatmojo Imam Robandi Indra Anugrah Pratama M. Ashari Mochamad Ashari Mohamad Ridwan Mohammad Ridwan Muhammad Budi Rahayu Widodo Muhammad Khoirul Anam Muhammad Nurtanto Ngurah Adi Brahmantia Putra Niken Ayu Larasati Nurvita Arumsari Ontoseno Penangsang Pradipta, Andri Pujiantara, Margo Rachma Prilian Eviningsih Rahmanditya Muhammad Rahmanditya R. Muhammad Rahmanditya R. Muhammad Reyvaldy Raffli Bachtiar Rezi Delfianti Rizki Wahyu Ismadani Sjamsjul Anam Sunardi sunardi Suwito Suyanto Suyanto Talitha Puspita Sari Tamil Selvan Subramaniam Umar Yeremia Martin