Harmonic distortion correction using active power line conditioners
Jones, Kevin David.
Ashton, Robert W.
MetadataShow full item record
Harmonic distortion of a voltage waveform on a local distribution system may have many effects, such as: protective device malfunctions, medical equipment failures, and increased noise generation and bearing wear of rotating equipment. In the past these effects have been tolerated. Advances in semiconductor technology in the past two decades have produced devices that can handle large amounts of power efficiently and safely. These advances have led to an increased number of loads that contribute to the bus voltage distortion. These same advances that have made the distortion problem worse also have given rise to devices that can be used to actively correct the problem. Active Power Line Conditioners (APLC's) use voltage or current converters to improve harmonic distortion on local buses. APLCVs use information from current or power sensors that are spread throughout the distribution system in order to correct the voltage waveform distortion. These sensors are difficult and costly to install. This thesis presents an APLC that produces its distortion canceling signal using only bus voltage information, thus reducing the distribution sample points to one. The LabVIEW graphical programming language is used for sampling and control of the APLC
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Williamson, Kenya Dewitt. (Monterey California. Naval Postgraduate School, 2007-12);This thesis presents a method to compensate for the blanking time distortion in Space Vector Modulated (SVM) voltage source inverters. Blanking time distortion is caused by the delay inserted to prevent the short circuit ...
Analysis of system wide distortion in an integrated power system utilizing a high voltage DC bus and silicon carbide power devices Fallier, William F. (Monterey, California. Naval Postgraduate School, 2007-06);This research investigates the distortion on the electrical distribution system for a high voltage DC Integrated Power System (IPS). The analysis was concentrated on the power supplied to a propulsion motor driven by an ...
Song, G.; Kelly, B.; Agrawal, B.N. (2000);This paper presents the design and the experimental result of the active position control of a shape memory alloy (SMA) wire actuated composite beam. The composite beam has a honeycomb structure with SMA wires embedded in ...