TY - JOUR N2 - This document contains results of research on complex motion common magnetic circuit electromagnetic converter characteristic that allows making independent axial and rotary shaft motion. The converter in addition to linear-rotary mechanism consists of two drive rotors and one common magnetic circuit excitator. Such a solution allows to reduce volume of the machine and makes it easier to use. The paper cites design intent and possible structure of the device. Phenomenon of common magnetic circuit adverse effect on correct operation of device is discussed. The concept of using relative error as a way to evaluate the influence of that phenomenon in the torques is discussed. Waveforms of determined relative errors for all possible cases is presented. Furthermore the concept of average relative error is defined and its use as a quantitative method of assessing the degree of common circuit impact is indicated. Definition of relative error ripple factor is given, and its usage is shown. Winding inductance calculation based on free FEM application is shown and its influence on control strategy and power system. L1 - http://journals.pan.pl/Content/84911/PDF/10_paper.pdf L2 - http://journals.pan.pl/Content/84911 PY - 2014 IS - No 1 March EP - 133 DO - 10.2478/aee-2014-0010 KW - electrical machines KW - common magnetic circuit KW - torque relative error A1 - Kamiński, Grzegorz A1 - Góralski, Paweł PB - Polish Academy of Sciences VL - vol. 63 DA - 2014 T1 - The electromagnetic calculations of complex motion common magnetic circuit electromagnetic converter SP - 125 UR - http://journals.pan.pl/dlibra/publication/edition/84911 T2 - Archives of Electrical Engineering ER -