No abstract

Pemanfaatan teknologi membuat tindakan-tindakan mematikan dan menghidupkan lampu ataupun perangkat elektronik lainnya dapat dilakukan secara semi-otomatis dan otomatis. Salah satu teknologi tersebut yaitu Internet of Things atau biasa disingkat dengan kata IoT. Internet of Things (IoT) membuat perangkat saat ini mampu bertukar informasi melalui jaringan internet. Oleh karena itu diusulkan monitoring daya dan kontrol beban 1 fase berbasis Internet of Things (IoT), dimana data hasil perekaman akan dikirim ke basis data yang telah disediakan platform yang bersifat open source melalui jaringan internet. Hasil yang dicapai berupa purwarupa alat yang mampu membaca nilai tegangan, arus, daya dan faktor daya menggunakan mikrokontroler Arduino Nano dengan sensor arus ZMCT103C dan Trafo 220 V-9 V yang digunakan sebagai sensor tegangan dengan nilai kesalahan pembacaan tegangan, arus, daya dan faktor daya beban satu fase dengan beban yang bervariasi rata-rata tidak lebih dari 5%.

No abstract

The development of installed capacity in power plants in 2018 was 41.696 MW or increased from the previous year in 2017 amounted to 39.652 MW (PLN Statistics, 2018). This has an impact on the reduced availability of fuel due to overexploitation. The highest energy sold per customer group in 2018 was the household customer group that was 41.7% higher than the industrial sector customer group by 32.8% (PLN Statistics, 2018). At present the use of electronic equipment for household needs is increasingly diverse. Many equipment that is often used in daily life is electronic equipment that is inductive load. Inductive load causes the value of the power factor to fall so that the power usage (Watt) becomes less than optimal. To overcome the problem caused by the large number of inductive loads a reactive power compensator is needed which is to use a capacitor. In this final project, a system designed to be able to measure and correct power factors automatically uses the Neural Network method and can monitor power online based on IoT. The results of testing the power factor improvement system were 97.8% successful in the trained electric load and 94.8% in the untrained electrical load.

Microhydro power plant is an alternative for producing small-scale electrical energy uses hydropower. Microhydro has three main components, water, turbine and generator. In the environment , it can also be used as a microhydro power plant on a home scale. The components needed to make microhydro prototype are water reservoirs, valves, MOV,generators, flowmeters, voltage sensors,LED . The water reservoir is installed as high as 4 meters. MOV is used as an actuator to control the flow of water to adjust the degree of valve opening automatically. Generator is connected to convert mechanical energy into electrical energy, flowmeter to determine the debit value and a voltage sensor is connected.  The system will be connected to the load of an LED light. When the lamp load changes, it is expected that the voltage generated by the generator remains stable. To regulate the voltage to remain stable, voltage control is carried out by adjusting the degree of valve opening using a PID control system. Voltage control with PID control based on Ziegler Nichols theory with oscillation method. Through experimentation, it was obtained that the KP = 0.9, Ki = 0.45 and Kd = 0.45 constants were the most optimal because the response of the oscillating system was 1.15 seconds shorter. The time required for the voltage to stabilize to the setpoint from the start of the system being turned on is 46.20 seconds. The greater the degree of valve opening, the greater the voltage generated, because the debit produced is greater.