Magnetic Energy Difference Between Partial Inductance Method and Magnetic Field Intensity in Open-Loop Problems.

Magnetic field energy could be calculated by means of inductance, magnetic field intensity, or vector potential A, respectively. However, the former two methods may not reach an agreement in open loop problems. Partial inductance is calculated through A, whereas magnetic field intensity is also related to A. This letter analytically derives the difference between the former two methods. It is necessary that displacement current have to be carefully considered in open loop problems. A numerical example is given out for validation. [ABSTRACT FROM PUBLISHER]