ANALISIS DISTORSI HARMONISA DAN PERENCANAAN FILTER HARMONISA AKIBAT INSTALASI ELECTROLYZER
Keywords:harmonic reduction, single tuned passive filter, high pass damped filter, ETAP 7.0
The installation of three units Electrolyzer added in the electrical system of PT Wilmar Gresik caused a failure in the installation of three winding rectifier transformer. The initial hypothesis of the problem was due to high harmonic level which causes current and voltage waveform are largely distorted. The high current and voltage harmonics should be filtered so that the existing harmonics are kept within the standard range so that the electrical system can be operated normally. This paper examined the method of harmonic reduction in the electrical system of PT Wilmar Gresik by combining single tuned filter and high pass damped filter which are classified as passive filter. The harmonic analysis has been done by using the IEEE standard 519-1992 while the system is modeled by using ETAP software. The harmonic reduction is limited to the filter installed at the medium voltage level 10.5 kV, the electrical system is in a steady state condition, and loads are operated. The simulation result shows that the installation of harmonic filter has effectively reduced the harmonic voltage level by 6.6% at bus PLN SS-B and 6.71% at bus PLN SS-C as well as increased power factor to be 95.2% shown at bus PLN SS-B and bus PLN SS-C from 89.8% and 84% respectively.
Arrillaga, Jos;, and N. R. Watson. (2nd eds.) (2003). Power System Harmonics. West Sussex, England: John Wiley & Sons, Ltd.
Chicco, G., Petru, P., & Cornel, T. (2011). Triplen Harmonics: Myths and Reality. Electric Power Systems Research. 81 (7): 1541–1549.
Fujita, H., & Akagi, H. (1991). A Practical Approach to Harmonic Compensation in Power Systems-Series Connection of Passive and Active Filters. Industry Applications, IEEE Transaction.
IEEE, S M. (1992). IEEE Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems. IEEE Recommended Practices.
Nassif, A B, & Wilsun, X. (2007). Passive Harmonic Filters for Medium-Voltage Industrial Systems: Practical Considerations and Topology Analysis. 39th North American Power Symposium, (NAPS).
Nelson, J, P. (2004). A Better Understanding of Harmonic Distortion in the Petrochemical Industry. IEEE Transactions on Industry Applications.
Nicolae, P, M., and Nicolae, I, D. (2011). The Impact of Currents Harmonics over the Voltage Transformers from a Power Group. IEEE International Symposium on Industrial Electronics (ISIE).
Pomilio, J, A., and Deckmann, S, M. (2007). Characterization and Compensation of Harmonics and Reactive Power of Residential and Commercial Loads. IEEE Transactions on Power Delivery.
Rahmadani, R., Atmam, A., & Zondra, E. (2019). Analisis Pemasangan Filter Pasif Untuk Mengurangi Harmonisa Pada Transformator Rectifier Di PT Indah Kiat Pulp and Paper Perawang. Jurnal Sains, Energi, Teknologi & Industri, (SainETIn).
Utomo, H B, Rafita, M. (2021). Perancangan Filter Pasif Untuk Mengurangi Kandungan Arus Harmonisa Pada Transformator Daya Berbasis SIMULINK. Prosiding The 12th Industrial Research Workshop and National Seminar, (IRWNS).
Utomo, H B, Putri, E B. (2021). Perhitungan Rugi-Rugi Pada Transformator Akibat Harmonisa dan Perancangan Filter Pasif Menggunakan MATLAB. Prosiding The 12th Industrial Research Workshop and National Seminar, (IRWNS).
Yang, N,-C., & Minh, D, L. (2015). Optimal Design of Passive Power Filters Based on Multi-Objective Bat Algorithm and Pareto Front. Applied Soft Computing 35 (October): 257–266.
Yousif, S.N.A.L., Wanik, M, Z, C., & Mohamed, A. (2004). Implementation of Different Passive Filter Designs for Harmonic Mitigation. Power and Energy Conference,. (PECon).