A Polyphase DSP-based electricity measurement system a with network analyzer
نویسندگان
چکیده
This paper represents a three-phase precision measurement system for the electronic electricity meter based on a digital signal processor (DSP) in combination with a multichannel analog-to-digital converter. The measurement system capabilities include all the usual assessments of the energy, power, voltage and current, but functionality of this precision measurement system is extended into the domain of power network quality analyzers. Here the measuring part of a complex device is being discussed which embeds a highly accurate electricity meter and network analyzer in the same unit. Analyzer functions are implemented in compliance with the European EN5160 Standard, and they include detection of shortand long-term voltage sags, swells and outages, harmonic analysis of current and voltage signals with calculation of total harmonic distortion (THD) as well as assessment of voltage flicker severity.
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