Method and apparatus for reducing the harmonic currents in alternating-current distribution networks

Patent · Mon Jan 01 00:00:00 EST 1996

OSTI ID:870693

Beverly, Leon H ^[1]; Hance, Richard D ^[2]; Kristalinski, Alexandr L ^[3]; Visser, Age T ^[4]

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1. Lockport, IL
2. Elburn, IL
3. Naperville, IL
4. Geneva, IL

An improved apparatus and method reduce the harmonic content of AC line and neutral line currents in polyphase AC source distribution networks. The apparatus and method employ a polyphase Zig-Zag transformer connected between the AC source distribution network and a load. The apparatus and method also employs a mechanism for increasing the source neutral impedance of the AC source distribution network. This mechanism can consist of a choke installed in the neutral line between the AC source and the Zig-Zag transformer.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• DOE Contract Number: AC02-76CH03000
• Assignee: Universities Research Association, Inc. (Washington, DC)
• Patent Number(s): US 5576942
• OSTI ID: 870693
• Country of Publication: United States
• Language: English

Related Subjects

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apparatus
reducing
harmonic
currents
alternating-current
distribution
networks
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line
neutral
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zig-zag
transformer
connected
network
load
employs
mechanism
increasing
impedance
consist
choke
installed
improved apparatus
source distribution
line current
current distribution
method employ
method reduce
distribution network
distribution networks
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