Effects of Military Shipyard Operation on Electric Power Quality in Public Distribution Network - A Case Study

摘要

The analysis of power quality characteristics at a grid supplying one military shipyard is presented. This type of consumer is similar to an industrial plant, although some special loads exist. Such loads may be source of negative effects regarding power quality in public distribution network. In the first part of the paper results of harmonic measurement at a 35 kV grid are presented. The measurement were performed during one week in real operating conditions. The results were the ground for developing a simulation model. The measurement results were analyzed and compared with simulation ones. A good accordance has been reached. After that, a simulation model was used for designing a filter for elimination harmonics. The effects of filter application are presented.