Abstract
Electrical equipment categorized as the nonlinear load will cause harmonics. Harmonic is a periodic distortion of the sine wave that can cause a negative impact on electronic equipment components. One way to improve power quality is to reduce harmonics using harmonic filters. In this study, an analysis of the system was carried out before adding a filter and after adding an active filter based on a fuzzy logic controller. The application of the fuzzy logic method on filters functions to reduce over switching in the inverter so that it can reach the lowest THDi value. THDi simulation results when the existing conditions are in phase R, S, T; at 14%, 17%, 14%. When the active filter condition is without control, the THDi percentage at the R phase is 6%, the S phase is 6%, the T phase is 4%. In the active filter conditions based on the fuzzy logic controller the percentage of THDi in phase R, S, T; is 0.9%, 0.9, 1%. Based on the simulation results introduced in the active filter based fuzzy logic controller is able to reduce harmonic distortion to the lowest value, so the use of fuzzy logic in active filters can be used in the harmonic filtering process in the electrical system.
Highlights
Electrical equipment categorized as the nonlinear load will cause harmonics
Harmonic is a periodic distortion of the sine wave
that can cause a negative impact on electronic equipment components
Summary
Kampus Fakultas Teknik Universitas Udayana Jalan P.B. Sudirman Denpasar merupakan tempat publik yang memiliki banyak peralatan elektronik. B Sudirman disuplai oleh dua buah transformatorkldistribusi 20 kV/380 V yang salah satunya memiliki kapasitas daya 100 kVA yang mengalirkan daya listrik ke sebuah MDP Fakultas Teknik yang mensuplai kebutuhan beban di gedung B, C, D dan E pada sistem ketenagalistrikannya. Data hasil pengukuran THDi yang diperoleh di MDP Fakultas Teknik Universitas Udayana Jalan P. Usaha dalam meredam harmonisa yang berlebih dapat dilakukan dengan cara mengoperasikan filter aktif pada sistem kelistrikannya. Sehingga pada penelitian ini dirancang filter aktif berbasis fuzzy logic controller untuk mereduksi harmonisa akibat beban nonlinier yang terdapat pada sistem kelistrikannya, dimana fuzzy logic memiliki banyak variabel yang dapat diatur sehingga dapat berpengaruh pada arus kompensasi yang akan dihasilkan
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have