The influence of upper harmonic waves in distribution network to shunt compensation capacitor and the suppression methods

Power Supply System is often placed with shunt compensation capacitors and the upper harmonic waves in the distribution network have much influence on the capacity. This thesist heoretically analyses the capacitor ex- cess current induced by the series resonance and the parallel resonance. No matter what type of harmonics, as long as the parameters fit well, current amplification or harmonic resonance will happen. This will overburden or even damage the capacitor. And this article also dis- cussed the above mentioned problem and finded out the corresponding suppression methods.