(Havid Febri Mutaqin from D3 Ship Electrical Engineering Study Program)
In the world of marine transportation, electrical energy is the main aspect, not a few equipment on ships that use electrical energy, for example for navigation and communication, so ships need to have their own generators. The generation of electrical energy on this ship in the end also creates a new problem, the problem of diesel engine exhaust emissions on ships. Therefore, shore connection was initiated as a solution to reduce marine vehicle emissions. The design of shore connection from the aspect of installation and security needs to be considered—the quality of protection and power—the quality of electrical power can be controlled from the quality of the voltage, the quality of protection can be considered from the installation and equipment used. This research discusses the application of power quality monitoring, over and under voltage protection, phase failure protection, and protection from grounding failure on shore connection. In this study the method used is Fuzzy Sugeno, the use of this method is quite effective because it can detect several types of power disturbances at once. Detection of the type of voltage disturbance with the fuzzy method is done by entering the input, namely the voltage from the power sensor and real time clock to detect how long the disturbance takes. After the input is entered, the fuzzy programming detects whether the disturbance is long duration rms variation or short duration rms variation. The control of this tool uses an under/over voltage protection relay that works when the voltage exceeds the setting, a phase failure protection relay that works when the phase line has no voltage and a grounding fault relay that works when the ground wire is energized and has a voltage. With the monitoring, reporting and detection of problems, it will be faster, the recorded data logs can also support long-term follow-up on disturbances that occur. It is hoped that this final project research can also support efficiency in trouble shooting at shore connections.
In the final project designed, which includes the input is the PZEM 004T power meter for sensors on the Line, then SCT013 is the current sensor for detecting the ground line, and RTC for time input if there is a voltage disturbance. Then the input processing is processed in Arduino Uno including Fuzzy Sugeno processing. Then the output of this system is a protection relay which includes Over Voltage Relay, Under Voltage relay, Ground Fault Relay, and Phase Failure Relay, other outputs are Web-based Realtime Monitoring which is connected to ESP8266, Led indicator, Buzzer, and data entered into the database MySQL is also displayed on a 20x4 LED (time, L-N voltage, Current, condition). The relay actuator will be connected to the Under Voltage Trip or Shunt Trip which will be installed built in to the shore Connection MCCB panel.
The Circuit of the Prototype of Protection Devices and Detection of Voltage Fault Types at the Shore Connection Terminal of Teluk Lamong
Experimental Results of the Prototype of Protection Devices and Detection of Voltage Interference Types at the Shore Connection Terminal of Teluk Lamong