Harmonics generated from a DC biased transformer

Journal Article · Wed Mar 31 23:00:00 EST 1993 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6001847

Lu, Shu; Liu, Yilu; Ree, J De La ^[1]

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1. Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). The Bradley Dept. of Electrical Engineering

The paper presents harmonic characteristics of transformer excitation currents under DC bias caused by geomagnetically induced currents (GIC). A newly developed saturation model of a single phase shell form transformer based on 3D finite element analysis is used to calculate the excitation currents. As a consequence, the complete variations of excitation current harmonics with respect to an extended range of GIC bias are revealed. The results of this study are useful in understanding transformers as harmonic sources and the impact on power systems during a solar magnetic disturbance.

• OSTI ID: 6001847
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States) Vol. 8:2; ISSN 0885-8977; ISSN ITPDE5
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240201* -- Power System Networks
Transmission & Distribution-- AC Systems-- (1990-)
AC SYSTEMS
CURRENTS
DIRECT CURRENT
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
FARADAY CURRENT
FARADAY EFFECT
GEOMAGNETIC FIELD
HARMONICS
MAGNETIC FIELDS
OSCILLATIONS
POWER SYSTEMS
TRANSFORMERS