Computer analysis of harmonic distortion in electrical power distribution systems.
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Author
Gedo, Christopher N.
Date
1991-12Advisor
Williams, Stephen M.
Second Reader
Tummala, Murali
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Show full item recordAbstract
The number of nonlinear loads connected to power distribution systems is rapidly
increasing. These loads disturb the sinusoidal nature of the power distribution systems
to which they are connected. Consequently, all connected loads may be affected by
even a single nonlinear load. This makes power quality an increasingly important issue,
particularly in shipboard applications because equipment malfunction can cause
the loss of life.
This study primarily develops a modeling technique for use with the harmonic
power flow program (HARMFLO) developed by the Electric Power Research Institute.
A land based power distribution system is modeled and simulation results are compared
to field measurements. Additionally, the causes and effects of harmonic disturbances
in power distribution systems are reviewed.
In spite of the fact that many parameters of the system being modeled are not precisely
known, simulation results are similar to the field measurements. This implies
that HARMFLO has applications in isolating existing harmonic disturbances of installed
systems and impact assessment for planned systems with one or more nonlinear loads.
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