Electromagnetic Energy Balance Equations and Poynting Theorem
Gaobiao Xiao
TL;DR
This paper revisits electromagnetic energy balance equations and proposes a modified method for evaluating power flux, enhancing the analysis of electromagnetic energy in time-varying fields.
Contribution
It introduces new energy balance equations and a modified approach for calculating power flux, improving upon traditional Poynting theorem applications.
Findings
New energy balance equations for time-varying fields
A modified method for evaluating electromagnetic power flux
Enhanced analysis of electromagnetic energy distribution
Abstract
Poynting theorem plays a very important role in analyzing electromagnetic phenomena. The electromagnetic power flux density is usually expressed with the Poynting vector. However, since Poynting theorem basically focuses on the power balance in a system, it is not so efficient in some situations to use it for evaluating the electromagnetic energies. The energy balance issue for time varying fields is revisited in this paper. Energy balance equations are introduced and a modified method for evaluating power flux is proposed.
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Taxonomy
TopicsInduction Heating and Inverter Technology · Advanced Scientific and Engineering Studies · Power Systems and Technologies