Articles
Pelatihan Dasar Programmable Logic Controller (PLC) Berbasis Daring Menggunakan PLC Fiddle Untuk Guru SMK di Surabaya
Adi Kurniawan;
Juniarko Prananda;
Eddy Setyo Koenhardono;
Sardono Sarwito;
Indra Ranu Kusuma;
Agoes Ahmad Masroeri
Sewagati Vol 5 No 3 (2021)
Publisher : Pusat Publikasi ITS
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DOI: 10.12962/j26139960.v5i3.61
Perkembangan pendidikan tingkat menengah di Indonesia saat ini sedang difokuskan untuk meningkatkan kuantitas maupun kualitas lulusan Sekolah Menengah Kejuruan (SMK) yang mampu memenuhi kebutuhan industri. Salah satu teknologi yang saat ini banyak digunakan di industri darat maupun di bidang maritim adalah teknologi otomatis berbasis Programmable Logic Controller (PLC). PLC merupakan salah satu mode kontrol otomatis yang memerlukan logika desain untuk menjalankan aturan dan langkah-langkah kontrolnya, sehingga diperlukan pengetahuan dan kemampuan untuk mendesain PLC. Namun demikian, dengan situasi pandemi Covid-19 menjadikan pembelajaran PLC menjadi lebih sulit dilakukan. Untuk mempelajari cara memprogram PLC, siswa maupun guru harus memasangkan piranti lunak yang membutuhkan kapasitas besar dan membebani komputer. Solusi dari permasalahan tersebut adalah dengan mempelajari pemrograman PLC melalui media daring, yaitu melalui PLC Fiddle. Media PLC Fiddle sendiri tergolong baru dan belum banyak diketahui oleh pengajar di Indonesia. Dengan dilakukan pelatihan dasar PLC melalui media daring kepada guru-guru SMK di Surabaya, diharapkan guru-guru SMK dapat tetap mengajarkan kemampuan untuk mendesain PLC kepada siswa sesuai kebutuhan industri walaupun dunia masih dilanda pandemic Covid-19. Selanjutnya, diharapkan bahwa para guru tersebut dapat mengaplikasikan ilmu dalam mendesain PLC dalam proses belajar mengajar, sehingga lulusan para lulusan SMK dapat memiliki kemampuan untuk mendesain PLC dengan baik.
Pelatihan Analisis Sistem Kelistrikan Kapal Menggunakan Perangkat Lunak untuk Fresh Graduate Departemen Teknik Sistem Perkapalan ITS
Adi Kurniawan;
Juniarko Prananda;
Eddy Koenhardono;
Sardono Sarwito;
Indra Ranu Kusuma;
Agoes Ahmad Masroeri
Sewagati Vol 6 No 2 (2022)
Publisher : Pusat Publikasi ITS
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DOI: 10.12962/j26139960.v6i2.137
Pandemi covid-19 telah menyerang Indonesia selama lebih dari satu tahun. Pandemi covid-19 ini tidak hanya mengancam keselamatan nyawa masyarakat Indonesia secara langsung, tetapi juga menurunkan tingkat perekonomian di skala industri maupun skala rumah tangga, sehingga berdampak menaikkan angka pengangguran dan menurunkan tingkat kesejahteraan masyarakat. Dengan berkurangnya ketersediaan lapangan pekerjaan termasuk di sektor maritim, lulusan Departemen Teknik Sistem Perkapalan (DTSP) ITS akan menemui tingkat persaingan yang lebih berat untuk dapat memperoleh pekerjaan di industri maritim. Untuk dapat memenangkan persaingan untuk memperoleh pekerjaan tersebut, kemampuan teknis yang tinggi sangat diperlukan. Salah satu kemampuan teknis yang dapat dikembangkan \textit{fresh graduate} DTSP dan menjadi unggulan dibanding pesaingnya adalah kemampuan untuk menganalisis performa dari sistem kelistrikan kapal. Selama ini, kemampuan tersebut telah diajarkan dalam perkuliahan, namun hanya secara manual dengan perhitungan perkiraan, karena keterbatasan waktu sesuai dengan jumlah SKS yang tersedia. Oleh karena itu, pada kegiatan pengabdian masyarakat ini direncakan pemberian pelatihan kepada fresh graduate DTSP untuk menganalisis kelistrikan kapal dengan lebih cepat dan akurat menggunakan bantuan perangkat lunak. Dengan mengikuti pelatihan ini, kemampuan unggulan fresh graduate DTSP akan semakin meningkat dibanding pesaing mereka untuk mendapat pekerjaan di industri maritim, sehingga memudahkan para fresh graduate DTSP untuk lebih cepat dan mudah dalam memperoleh pekerjaan di industri maritim.
Transient Voltage Analysis for Dynamic Positioning Closed Bus Electrical System on Ship in Laboratory Scale
Sardono Sarwito;
Eddy Setyo Koenhardono;
A.A Masroeri;
Indra Ranu Kusuma;
Mochamad Nur Ichwan
International Journal of Marine Engineering Innovation and Research Vol. 4 No. 3 (2019)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember
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DOI: 10.12962/j25481479.v4i3.6027
Ships equipped with a dynamic positioning system has a more number of thuster than ships that are not equipped with a dynamic positioning system. The addition of this thruster resulted in a significant increase in electrical loads so that the power plant will be added to the vessel. Dynamic positioning is a system used to support offshore vessel work consisting of a collection of equipment and control systems that work simultaneously to maintain the position of a vessel in accordance with which has been input into the system. Installation of the dynamic positioning system on the vessel affects the electrical system of the vessel. In the operation of electrical system on the vessel found the disturbances that arise one of them is transient interference that causes the change of voltage and frequency value in a short time. A Transient voltage occurs within a few seconds where the system conditions are unstable. The research was conducted in a laboratory scale by modeled a series of vessels that have the system with existing laboratory equipment where transient interference occurred due to the starting motor so that it is done Analysis of the magnitude of the voltage and frequency in the specified scenario as well as finding a solution to correct emerging interference that exceeds the standard. In the experiments made some configuration changes and obtained the result that the configuration of Split Plant 1 generator thruster has good system stability capable of achieving a stable condition with a loading of 50%. As for the loading of 60% stability of the system is unstable and can be improved again with the addition of capacitor.
Designing Passive Harmonic Filter on Dynamic Positioning Vessel's Electrical System Affected using Electrical Thruster
Sardono Sarwito;
Indra Ranu Kusuma;
Yose Gregory Tarigan
International Journal of Marine Engineering Innovation and Research Vol. 4 No. 2 (2019)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember
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DOI: 10.12962/j25481479.v4i2.6031
Ship with a dynamic positioning system has the ability to maintain her position dynamically. To be able to maintain the position, generally, ship with a dynamic positioning system have several thrusters located at bow or stern of the ship. Based on the propulsion system, there are 2 types of thruster which are mechanical thruster and electrical thruster. In electrical type, the thruster is driven by an electric motor supplied from the generator. In addition, on dynamic positioning vessel equipped with the electrical thruster, there are also VFD or Variable Frequency Drive to control the speed of motor thruster. The use of VFD components in the system may cause harmonic interference. Harmonic itself can be regarded as distortion in the sinusoidal waves due to the interference of other waves that have integer frequency multiples of their fundamental frequency due to the operation of non-linear thruster motor. Some of the most affected components of this distortion are the communications equipment and the components used for measurement. This research conducted an analysis of harmonic disturbance arising from the operation of 2 units bow thruster on DP Ship by simulating 6 scenarios of generator configuration using simulation software. The results from this research were total harmonic distortion value or VTHD of the system that complies with standards and rules, also the specification of a passive harmonic filter to reduce the VTHD value at the specific harmonic order.
Performance Analysis of Submerged Vehicle Electric Propulsion with DC Motor 2x1850 kW 380 Volt which Supplied Power 10260 AH on 190 VDC in Series and Parallel Circuits
Indra Ranu Kusuma;
Sardono Sarwito;
Annisa Maya Shabrina
International Journal of Marine Engineering Innovation and Research Vol. 4 No. 1 (2019)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember
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DOI: 10.12962/j25481479.v4i1.6040
An electric DC motor that is used as a main propulsion, typically used on ships with high maneuverability, special ships, ships wtih great cargo load, and the ships that use prime movers non-reversible (generally using a gas turbine, steam turbine and high-speed diesel in its use is unlikely to reverse its rotation quickly). As for the expected results we will obtain the characteristics (such as torque and rotation) on a series DC motor series and in parallel on the propulsion system, determines where an efficient circuit for the propulsion system, getting long use of batteries used for such needs. In this research will be assessed numerically by simulation using MATLAB-Simulink the drive system by using a DC motor in a vehicle submerged was carried out together series and parallel. The result obtained is the same input voltage of 190 Volt same torque value of 140 Nm is generated at the motor circuit series and parallel. So that a series circuit, generating a service speed of 12 knots and 21.5 knots using a converter, and usually when submerged condition in the sea. For parallel circuit produces speed of 14 knots and 11 knots using a converter.
Designing Passive Harmonic Filter of Electric Propulsion System on Tanker Ship
Indra Ranu Kusuma;
Semin;
Muhammad Badrus Zaman;
Faisal Muhammad Satrio
International Journal of Marine Engineering Innovation and Research Vol. 2 No. 3 (2018)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember
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DOI: 10.12962/j25481479.v2i3.6086
Harmonic is a frequency defect that have some negative effect to the electrical network system. In a ship, electrical network system are interconnected to each other to another electrical consumer device. The effect will impact all the device that connected to the electrical network system. This can be reducing the consumer devices reliability. This research analyzed and simulate the effect of harmonic when there is no harmonic filter condition and with a passive harmonic filter for each operating condition on this ship. This research also includes the comparison diagram between no filter and with a passive harmonic filter condition, and some simulation report from the software. The research results were VTHD value are need to be comply with the classification standards and rules. Passive harmonic filter can reduce the VTHD value by reducing a specific harmonic order and the impact from reducing specific harmonic order can reduce the other harmonic order. Besides that, passive harmonic filter also can gain a higher power factor (PF) value.
Design of Protection Coordination for Overcurrent on Electrical System in Tanker Ship Plan Using Electro Mechanical Trip Device
Indra Ranu Kusuma;
Eddy Setyo Koenhardhono;
Riantini Karmina
International Journal of Marine Engineering Innovation and Research Vol. 1 No. 4 (2017)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember
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DOI: 10.12962/j25481479.v1i4.6160
Disturbance of power system in ship is unavoidable case that required a function from safety system to separate the affected parts of system. The disturbance in electrical system generally is a short-circuit current. It is affected when there are two conductors having lowest impedance in normal condition that have two different voltages thus causing an overcurrent. There is one of the device protection to prevent a disturbance like short circuit current, is circuit breaker. It opens the contact with component or system that disturbance using electromechanical trip device. The principal operating of trip device is using electric current flow in the circuit breaker and the magnet induces the tripping part to moving the contact from closed position to the opened position. The main discussion is to coordinate circuit breakers in four operating conditions of the ship's generator using software ETAP. The simulation of the result obtained value of short circuit in main bus one at sailing condition is 8.2 kA. Tripping time for the circuit breakers in sailing condition at one typical disturbance are 0.75 seconds for circuit breaker number 29; 0.83 seconds for circuit breaker number 37 and 1 second for circuit breaker number 28.
Development of Power Management System for Electric Power Generation in Tanker Ship Based on Simulation
Indra Ranu Kusuma;
Raynaldi Pratama
International Journal of Marine Engineering Innovation and Research Vol. 1 No. 3 (2017)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember
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DOI: 10.12962/j25481479.v1i3.6198
Power management system (PMS) for electric power generation in ship, in the case of tanker ship, is the system that has function to control and to monitor all generators in ship as the main electricity supplier for all electric equipments or installed load. The number of total load that supplied by generator depends on the frequency of the use of load itself which would be read in PMS as well. It leads the operator to take a decision on how many generator should be operate whether in parralel or stand alone operation to fulfilling the power needs. Those loads should be grouped into essential and non essential load. This groups affecting the performance of the generators, where it will covers the maximum load at 306.67 kw under the condition of all electric equipments are operated well while the cargo handling of tanker ship is on process. However, in the state of emergency while the non essential electrical equipments are being cut off trough PMS, the generator will only covers the the maximum load at 253.88 kw to fulfilling the same needs. In the extreme case (total efficiency of parralel operation at 70%), the generators would cover the total load at 306.6 kw still by sparing the generated power of 52.72 kw.
Design and Simulation of Automatic Ballast System on Catamaran Ship Based on Programmable Logic Control
Indra Ranu Kusuma
International Journal of Marine Engineering Innovation and Research Vol. 1 No. 3 (2017)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember
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DOI: 10.12962/j25481479.v1i3.6204
Characteristics of catamaran ship which has deficiency to ship stability during maneuvering. to that end, this paper concerns about ballast system design in support of the safety and comfort of passengers on the catamaran boat. the discussion is done by creating a mathematical model of each component in the block diagram of the ballast system. then determine the pid value of the system and add the compensator for the system to run stable. further analyzed with the help of matlab software to get transient system response. with the automation system on the ballast system, it is expected that the motion of the ship can work automatically and provide a better response in the stability of the catamaran type ship. the ballast system begins to work against the tilt of the ship at 6.7 seconds at a certain angle, and will continue to work during the vessel maneuvering. judging from the 6.7 second system response time, the convenience of the passengers is not disturbed (the system response is not too fast). one way to reduce the rolling that occurs on the ship is to optimize the performance of the ballast system. performance optimization is done by using programmable logic controller (plc). plc used is omron cpm1a-30cdr-a-v1. the process is done by making the installation plant model of the ballast system as a control medium. followed by creating a control circuit consisting of wiring i / o, limit switch circuits, power supplies and programming languages associated with plcs. the result of the control is expected to regulate fluid flow in the ballast system automatically resulting in a rapid response to the stability of the ship.
Analysis of Electric Propulsion Performance on Submersible with Motor DC, Supply Power 10260AH at Voltage 115VDC
Indra Ranu Kusuma;
Sardono Sarwito;
Ristita Angarini Widya Ayu Irawati
International Journal of Marine Engineering Innovation and Research Vol. 1 No. 2 (2017)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember
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DOI: 10.12962/j25481479.v1i2.6224
Electric propulsion is the ship system using propulsion motor to replace performance of main engine. The application of diesel engine as propulsion system have some problems and weaknesses such as diesel engine unability to operate when submersible vessel is operating under sea. To overcome that problems in submersible vessel, alternative solution of ship propulsion is required. DC Motor can be used as this alternative solution. Submersible vessel use electric propulsion system with DC Motor because DC Motor has advantages of easy rotation setting and does not cause noise when submersible vessel is diving. This bachelor thesis will study the application of DC Motor as an electric propulsion system on submersible vessel with length 59,57 m in series and parallel circuit by simulation using MATLAB software. The simulation data obtained are rotation and torque of DC Motor. From these simulation, it can be concluded that parallel circuit rotation is greater than series circuit rotation. It caused the greater speed and lower power in parallel circuit.