Lektrokom : Jurnal Ilmiah Teknik Elektro

ANALISA HARMONISA PEMBANGKIT LISTRIK TENAGA SURYA (PLTS) OFF - GRID 290 Wp DENGAN KOMBINASI BEBAN LINIER DAN NON LINIER DI GEDUNG FAKULTAS TEKNIK UKI - JAKARTA MENGGUNAKAN MATLAB SIMULINK

Elisabeth Faustina Ene Openg — 2024-03-21

This paper presents the results of research on a 290 Wp (Watt-peak) Off-Grid Solar Power Plant (PLTS) at the Faculty of Engineering Building, Universitas Kristen Indonesia - Jakarta, aiming to investigate current harmonics on the load side and reduce the Total Harmonic Distortion (THDi) value using a single-tuned LC passive filter. Based on the measured current per order, calculations were conducted, revealing that the THDi on the load side (LED) amounted to 16,42%. The dominant harmonic currents were the 3rd order with a THDi of 5,7% and the 10th order with a THDi of 15,3%. According to the simulation results using MATLAB Simulink, the single-tuned LC passive filter was capable of reducing the THDi level on the LED from 16,42% to 1,81%.

PEMODELAN DAN SIMULASI PEMBANGKIT LISTRIK TENAGA BAYU SISTEM ON-GRID MENGGUNAKAN MATLAB SIMULINK

Yosep Cristian — 2024-03-21

In this study, the authors analyzed the variables of research in the form of wind turbine mechanical power results based on wind speed varies, as well as the results of current, voltage and power of permanent magnet synchronous generators based on wind speed varies. This study aims to determine the results of mechanical power output in wind turbines, the power output of generators, and the efficiency of On-Grid Power Plant Systems. The method used in this study uses literature study method and associative method. Where the method of literature study to collect literature on wind power plants, associative method to determine the relationship of several variables studied. Based on the research conducted on the simulation, the mechanical power output of wind turbine at minimum wind speed (cut-in) 3.38 m/sec is 27.68 W and at maximum wind speed (rated) reaches 103.6 W, and the voltage, current and power generated by the generator at minimum speed is 75.29 V, 2.81 A, and 9.89 W, while at maximum wind speed reaches 75.37 V, 2.7 A, and 77.54 W. The maximum efficiency generated by On-Grid PLTB is 75% at a maximum wind speed of 7.63 m/sec.

RANCANG BANGUN SISTEM PENGENDALI KURSI RODA LISTRIK PENYANDANG DISABILITAS BERBASIS MIKROKONTROLER ARDUINO UNO ATmega 328P

Jilva Krisye Sabeilai — 2024-02-29

For people with physical impairments, wheelchairs are the tools that are most widely used in their activities and are also the most widely used in hospitals. There are two types of wheelchairs that are often used, namely manual wheelchairs and electric wheelchairs. The electric wheelchair is designed using an Arduino Uno microcontroller, a set of buttons, and a motor driver circuit. Using the Arduino Uno as a microcontroller makes the system cost-effective and easy to access. Electric wheelchairs can move on a flat track using a pushbutton, which means the wheelchair can be moved easily. This research also uses the Arduino uno ATmega 328P as a wheelchair controller which is modified into two types, namely fast and slow according to the motor and battery capabilities. The performance test on this wheelchair includes the ability to lift loads with a maximum weight of 18 kg and subjects with an age range of 21 to 26 years with a maximum subject weight of 65 kg. From the test results, the wheelchair with a load of 11-18kg can move around 1.00 – 10.84 s. test results with subjects weighing 49-66kg moving around 1.00 – 8.00 s for each different weight.

SMART GARDEN SYSTEM SEBAGAI PENGENDALI DAN PEMANTAU RUANG GREENHOUSE BERBASIS INTERNET OF THINGS (IOT)

Alberto Leo Agung — 2024-05-07

Rapid technological advances, especially in technology based on the Internet of Things (IoT). The Internet of Things creates a smart environment that provides intelligence in various fields, one of which is agriculture and plantations. Gardening activities are activities to cultivate or plant plants on an empty land or a planting medium. Gardening begins with planting plants, monitoring plant growth and caring for them by watering and fertilizing so plants can thrive. Use of Internet of Things (IoT) based technology to help promote plant growth. This research is focused on controlling and monitoring plants by using a planting medium, namely greenhouse. This control and monitoring is carried out by using an application that is connected to the internet connection which will then be stored in a database from the firebase platform. The application is made on a Mit App Inventor platform and installed on an Android device where the application is named IoTMonitoring which can assist in controlling and monitoring by taking into account the ideal values needed by plants. Based on the results of monitoring carried out with the lowest conditions for temperatures reaching temperatures reaching 23.4⁰C, air humidity 44.7%, soil moisture 543%, and light intensity 0 lumens. At the highest conditions for temperature reaching 38.3 ⁰C, air humidity 82.7%, soil moisture 730%, and light intensity 15263 lumens obtained from the readings of the sensor values in the greenhouse room. Meanwhile, the control is carried out by watering plants before 09.00 to maintain soil moisture and if the humidity is below the ideal value, for temperature and humidity the exhaust fan is in the ON position if the temperature is above 32⁰C and the humidity is below 55%. And for grow lights are in the ON status if the light is below 30 lumens.

Keywords: Internet of Things, Tanaman, Greenhouse, Android, Firebase, Mit App Inventor.