Electric Power Quality Issues: Harmonic Analysis for Real Network

There is an increasing interest in studying the power quality issues. It is sustained by different distorting consumers' operation within the power systems. Their operation affects the supplied power quality within the network, having, in several cases, negative effects for the rest of the consumers. The paper aims to analyze a major power quality issue: large scale consumers' harmonic evaluation, within a specific Romanian Power System region. Solutions for improving the current situation are provided and the numerical simulations are validated using specialized software. The power quality measurements, performed on the field, according to the regulations, have been confronted with the ones obtained using the computer-aided analysis. The conclusions sustained additional studies and analyzes for several operating conditions and scenarios.