On the meaning of nonsinusoidal active currents
Shiqian Sun, Shiping Huang · IEEE Transactions on Instrumentation and Measurement · 1991
L.S. Czarnecki's (1985, 1987, 1988) orthogonal decomposition of nonsinusoidal currents is briefly discussed. The minimum property of Czarnecki's active currents in single-phase and three-phase nonsinusoidal circuits is discussed, using a Lagrangian multiplier approach. Czarnecki divided current, i, into three components: the active current i/sub a/, the scattered current i/sub s/, and the reactive current i/sub r/. For three-phase four-line systems, several meanings of Czarnecki's active current i/sub a/ are given.>