engleski

Validation of Power Quality Toolbox in EMTP

Numerous problems related to voltage and current harmonic effects in power systems are commonly observed nowadays due to growth of large industrial consumers with non-linear loads and power electronic equipment. Higher harmonics cause the following unwanted effects in electrical networks: additional heating and losses on power system elements (such as transmission lines, transformers, compensation devices, etc.), unwanted voltage distortion, increased flow of circulating currents through grounding wire, decrease of transformer rated power and interference with conventional telecommunication lines. A Power Quality toolbox (PQ) has been developed by EDF with POWERSYS to facilitate the performance of power quality studies. Validation has been performed by Faculty of Electrical Engineering and Computing, University of Zagreb, following a request from EDF. The PQ toolbox includes harmonic analyzer, flickermeter and various filters. This presentation will show the results of validation of the PQ toolbox in EMTP-RV using test cases and comparing the results of harmonic analyzer and flickermeter with a reference. Several test cases were developed in EMTP-RV and results were compared with the ones obtained by Matlab, EMTP-ATP, NEPLAN. Results of flickermeter were compared with limits given in IEC 61000-4-15.

Power quality toolbox ; EMTP-RV ; flickermeter ; harmonics ; validation

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