@article{J. Sobczyk_2001, title={PROPERTIES OF THE CO-ENERGY FUNCTION FOR AC MACHINES WITH NON-LINEAR MAGNETIC CIRCUIT}, volume={45}, url={https://pp.bme.hu/ee/article/view/986}, DOI={N/A}, abstractNote={To create equations of AC machines with
non-linear magnetic circuit Lagrange´s formalism can be used. A starting
point for this is the co-energy function. In the paper properties of the
co-energy function of most important types of AC machines are discussed.
Introducing equivalent magnetising currents as substitute variables, the
co-energy function can be rather easily foreseen. Qualitative analysis of
physical phenomena in a given type of machine is a base of it. An
approximation of the co-energy function for non-linear magnetic circuit is also
presented.
}, number={3-4}, journal={Periodica Polytechnica Electrical Engineering}, author={J. Sobczyk, Tadeusz}, year={2001}, pages={223–233} }