– Electromechanical energy conversion theory is the cornerstone for the analysis of electromechanical motion devices. – The theory allows us to express the electromagnetic force or torque in terms of the device variables such as the currents and the displacement of the mechanical system.
In all electromechanical devices, mechanical motion must occur, either translational or rotational, and this motion is reflected into the electrical system either as a change of flux linkages (electromagnetic system) or as a change of charge (electrostatic system).
Focus is primarily on electromagnetic systems.
• The energy transferred from one system is temporarily stored in the. magnetic field and then released to the other system.• For Motor action: Total electrical input = Mechanical energy output + total energy stored.• For Generator action: Total mechanical input = Electrical energy output + total energy stored.