Strategic Harmonic Filter Placement in an Electric Ship Integrated Power System

The Harmonic Similarity (HS) metric is developed mathematically and incorporated into a strategy for intelligent harmonic filter placement. The purpose of the strategy is to determine the most efficient location at which to place a harmonic filter bank in order to both protect the system's sensitive loads and have a positive impact on the system-wide power quality. The robust capabilities of the strategy are examined by analyzing two harmonic injection scenarios on an electric ship integrated power system (IPS) composed of four load centers and three levels of power distribution. Under each scenario, the indication of the strategy is validated via performance metrics and a result comparison. It is determined that for each scenario the strategy successfully determines the optimal location for a single filter bank to protect the sensitive loads of the system, and have the greatest power quality improvement throughout the system.