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This paper presents the implementation of a Virtual Instrument for Time Varying Harmonic Analysis based on the real time processing platform dSPACE. The time varying harmonic extraction from the power system signal was implemented using a Recursive Hanning Window DFT (RHWDFT). The prototype combines RHWDFT with dynamic and configurable trigger system, thus it is able to detect and estimate time varying...
With the growing complexity of the electric grid, signal processing has a fundamental importance in characterization, diagnoses and protection. In this paper a brief review of digital signal processing techniques will be done. These techniques are focused in power systems applications, such as: signal compression, harmonic estimation and characterization of load and generation profiles.
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