Mitigation of EMI/RFI Produced by a 1.2 kW Uninterruptible Power Supply

reportActive / Technical Report | Accession Number: ADA273149 | Open PDF

Abstract:

Recently installed equipment in naval receiving sites, such as Uninterruptible Power Supplies UPS, digital telephone switching systems, and personal computers, inject noise into receiver systems via power conductors, cable shields, and grounds, thus reducing the probability of intercept of a signal of interest, in the 2-100 NMHz range. In this thesis a survey of EMIRFI sources at receiving sites is performed. The effectiveness of a Barrier-Filter- Ground architecture in containingeliminating EMIRFI from a 1.2 kW UPS is tested. The spectral and temporal properties of the EMIRFI from the UPS are recorded. estimates for the EMIRFI power are obtained from 60Hz to l00kHz, and a possible solution is proposed for obtaining noise power estimates for higher frequencies. Electromagnetic interference EMIRadio-Frequency Interference RFI, Barrier-filter-ground architecture.

Author(s):
Mikros, Efthimios
Author Organization(s):
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Descriptive Note:
Master's thesis
Pagination:
0129

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Monitor Series:
NPS
 Subject Terms
Joint Capability Areas:
JCA_1.2.7_Experimentation; JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.2.5_Lessons Learned; JCA_1.2.6_Concepts; JCA_4.6_Engineering
Modernization Areas:
Microelectronics
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*ELECTROMAGNETIC INTERFERENCE, *POWER SUPPLIES, *RADIO TRANSMISSION, *RADIOFREQUENCY INTERFERENCE, FREQUENCY, COMPUTERS, SIGNAL TO NOISE RATIO, HARMONICS, CABLES, RADIO EQUIPMENT, FILTERS, RADIOFREQUENCY FILTERS, ELECTROMAGNETIC PULSES, NOISE(ELECTRICAL AND ELECTROMAGNETIC), RADIO SIGNALS, SWITCHING, ARCHITECTURE, ELECTRIC CURRENT, NOISE, MICROCOMPUTERS, THESES, VOLTAGE, SURVEYS, SIGNALS, RECEIVERS, BARRIERS
Field(s)/Group(s):
Electric Power Production and Distribution, Electricity and Magnetism, Radiofrequency Wave Propagation, Radio Communications
Report Date:
1993 Sep 01