Power Quality Monitoring
Introduction
Power
quality monitoring is the process of gathering, analyzing, and interpreting raw
measurement data into useful information. The process of gathering data is
usually carried out by continuous measurement of voltage and current over an
extended period. The process of analysis and interpretation has been
traditionally performed manually, but recent advances in signal processing and
artificial intelligence fields have made it possible to design and implement
intelligent systems to automatically analyze and interpret raw data into useful
information with minimum human intervention.
Power
quality monitoring programs are often driven by the demand for improving the
system wide power quality performance. Many industrial and commercial customers
have equipment that is sensitive to power disturbances, and, therefore, it is
more important to understand the quality of power being provided. Examples of
these facilities include computer networking and telecommunication facilities,
semiconductor and electronics manufacturing facilities, biotechnology and
pharmaceutical laboratories, and financial data-processing centers. Hence, in
the last decade many utility companies have implemented extensive power quality
monitoring programs.
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