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Rancang Bangun Alat Ukur Portable 9 Titik Kecepatan Aliran Sungai (Open Channel) Nirkabel Berbasis PC
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No full textDuring peak load, Lampung subsystem greatly depends on electric power supply from South Sumatra (Sumsel) subsystem through interconnection system at 150 kV. This operating mode causes critical operation of interconnecting line and may lead to unstable operation of generators connected to the system on the occurrence of fault. Hence, it is importance to study power transfer security to prevent further damage to the machines. In this research, we work on power transfer security with respect to rotor angle stability of generators connected to Sumsel-Lampung interconnection system. This problem is formulated by maximizing power transfer from Sumsel to Lampung while meeting rotor angle stability constraints and other operational constraints and solved by applying a Newtonian nonlinear programming primal-dual interior point. Simulation scenarios include power transfer maximization with and without considering rotor angle transient stability. Results on loading condition of this study reveal that maximum allowable transfer is about 230 MW. Therefore, adding new generating units within Lampung area is an alternative solution to improve the overall security operation of the interconnection system
Analisa Setting Rele Arus Lebih dan Rele Gangguan Tanah pada Penyulang Topan Gardu Induk Teluk Betung
Get PDFPerancangan Water Level Control Menggunakan PLC Omron Sysmac C200H Yang Dilengkapi Software SCADA Wonderware InTouch 10.5
Get PDFFeed water tank merupakan salah satu komponen pada boiler yang memiliki fungsi penting dalam menyuplai air ke boiler. Level air pada feed water tank harus tetap dijaga agar tidak terjadi kekosongan saat proses pengisian air ke boiler. Selama ini operator masih memantau secara langsung level air pada feed water tank. Sehingga diperlukan sistem otomasi water level control yang dapat membantu operator dalam mengontrol dan memantau level air pada feed water tank. Sistem otomasi water level control dikendalikan oleh PLC Omron Sysmac C200H dengan menggunakan panel push button yang terpasang pada plant atau juga dapat dikendalikan dan dimonitor melalui melalui PC menggunakan software SCADA Wonderware InTouch 10.5. Selain itu sistem otomasi menggunakan SCADA ini dilengkapi password sebagai pengaman dari orang yang tidak bertanggung jawab.
Kata kunci PLC, SCADA, water level control, feed water tank
Feed water tank is one component of the boiler system which has an important function in supplying water to the boiler. Water levels in feed water tank must be guarded to avoid emptiness at filling process to the boiler. This time, the operator is directly to monitor water level in the feed water tank. So that, it is required water level control that can help the operators to control and monitor the water level in the feed water tank. Water level control is controlled by PLC Omron C200H Sysmac using the push button panel that attached to the plant or also can be controlled and monitored by PC using Wonderware InTouch 10.5. Beside it, SCADA system is equipped with a password to secure from irresponsible people.
Keyword PLC, SCADA, water level control, feed water tan
Sistem Kendali Holding Position Pada Quadcopter Berbasis Mikrokontroler Atmega 328p
Get PDFIntisari---Quadcopter adalah salah satu jenis UAV rotary-wing yang merupakan pengembangan dari teknologi pada helikopter yang menggunakan satu buah rotor, menjadi empat buah rotor. Sistem kendali holding position pada quadcopter adalah sebuah sistem kendali autonomous pada quadcopter untuk mempertahankan posisi (holding position) koordinat terbang yang ditentukan melalui salah satu channel remot pada pilot dan mampu ditampilkan dalam bentuk Graphical User Interface (GUI) pada Ground Control Station (GCS). Sistem kendali holding position pada penelitian ini menggunakan Penerima GPS Ublox Neo-6M sebagai penentu koordinat pada quadcopter, sensor Inertia Measuring Unit (IMU) MPU 6050 sebagai pengontrol autonomous pada saat holding position, sensor digital pressure BMP085 sebagai kontrol ketinggian quadcopter, dan sensor magnetometer sebagai penentu heading pada quadcopter. Sistem kendali holding position pada quadcopter dikendalikan menggunakan mikrokontroler Atmega 328P menggunakan sistem kendali Proportional Integral Derivative (PID). Dengan GCS berbasis GUI, maka status dari quadcopter dapat dilihat pada laptop dengan komunikasi wireless. Hasil penelitian ini adalah quadcopter mampu mempertahankan posisi (holding position) ketika mode holding position diaktifkan dari salah satu channel remot pada pilot, dan mampu mengirim data telemetri ke GCS dalam bentuk GUI melalui radio frekuensi 900Mhz. Kata kunci--- Quadcopter, PID, holding position, GCS, GUI Abstract---Quadcopter is one of kind of UAV rotary-wing which is the development of technology in the helicopter that uses a single rotor, become four rotor. Holding Position Control system of the quadcopter is an autonomous control system on the quadcopter to maintain position (holding position) coordinates are determined to fly through one channel of the remote pilot and is able to be displayed in the form of a Graphical User Interface (GUI) in the Ground Control Station (GCS). Holding position control system in this study using a GPS receiver Ublox Neo-6M as a determinant of the coordinates on the quadcopter, sensor Inertia Measuring Unit (IMU) MPU 6050 as an autonomous controller while holding position, sensor BMP085 digital pressure as altitude control quadcopter, and magnetometer sensor as determinant heading on quadcopter. Holding position control system of the quadcopter is controlled by microcontroller Atmega 328P using Proportional Integral Derivative control system (PID). With GCS-based GUI, the status of the quadcopter can be viewed on a laptop with wireless communications. Results of this study were able to maintain a position quadcopter (holding position) when the mode of holding position is activated from one channel on the remote pilot, and is able to send telemetry data to the GCS in GUI form via 900MHz radio frequency. Keyword---Quadcopter, PID, holding position, GCS, GU
