| Abstract [eng] |
The aim of the research is to examine electrical network of the JSC \"Achema\", to identify sources of the higher harmonic generation and to make decisions how to eliminate them. In this work was examined the quality of the electrical parameters, generation and removal criteria for the higher harmonic, passive, active and hybrid filters. With the help of the model of frequency inverter which has been maded with \"Matlab\" program, it is possible to calculate current and voltage values, higher harmonic and total harmonic distortion. Investigating diffent network locations of JSC \"Achema\" with \"Chauvin Arnoux CA8335\" analyzer, were found that in the cage n.3 of the TP-7 substation total harmonic distortion factor is very high (phase A – 20%, phase B – 18,6%, phase C – 40,9%). |
