| 摘要 |
The invention relates to methods for determining electric circuits parameters, in particular to harmonic response of 0.4 kV four-wire network with non-linear loads. An object of the invention is development of a method for determining s of periodic nonsinusoidal phase current, which due to selection of a time slot of lattice delta-function corresponding to an auxiliary value allows determination of both s of a sum of all harmonics of phase currentand sof each ofharmonics, also redaction of necessary for said purposes mathematic operations in comparison to existing methods. For the purpose, to the known method, where a interval of phase current-time dependenceis found 3 times less than the period of highest odd current harmonic, intervals are assumed in 2 times less, than the period of current change for each harmonic. For the last case, the current is determined without taking into accountharmonic, that allows using simple mathematical operations to determine the ofharmonic current. |
