G - Physics – 01 – R
Patent
G - Physics
01
R
G01R 21/00 (2006.01) G01R 23/02 (2006.01) G01R 25/00 (2006.01)
Patent
CA 2503685
A Three-phase Power Signal Processor (TPSP) is disclosed for general three- phase power system applications. The TPSP is developed based on the concepts from adaptive filter and dynamical systems theories. The structure of the TPSP is unified as it provides a multiplicity of the signals and pieces of information without the need to change, modify, or enhance the structure or to impose excessive computational time or resource requirements. The presented TPSP receives a set of three-phase measured signals, which can be voltage, current, magnetic flux, etc, and provides (1) the instantaneous and steady- state symmetrical components, (2) the fundamental components, (3) the peak values (magnitudes) of the symmetrical components, (4) the frequency and its rate of change, (5) the synchronization signal(s) and zero-crossing instants, (6) the phase-angles of the symmetrical components, and (7) the disturbance signatures. Two or more TPSP units, when properly augmented, further provide (8) the individual harmonic components, (9) the inter- harmonics, (10) the instantaneous real and reactive current components, (11) the total harmonic distortion, dc- offset, and power factor. The TPSP can serve as the building block for various signal processing requirements encountered in the context of power system applications including power systems control, protection, monitoring, and power quality.
de Fazekas Anthony
Masoud M. K. Karimi Ghartemani
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