Materials Science Forum Vol. 856

Abstract: The paper introduces a magnetic flux control algorithm for the minimization of losses in Induction Motor (IM) drives. The proposed methodology accounts for search time delays and IM model deficiencies and has been applied to minimize power losses. The controller is validated on an IM prototype and offers improved transient response.

Abstract: The paper deals with modeling of steady state and transient thermal processes in a small resistance electric furnace for melting and heat treatment of high quality glass products. The device is designed to obtain molten glass, which can meet the multiple requirements for handling glass and is used for producing of artistic glass sculptures. The temperature field distribution has been studied by 3D FEM modeling of heating and cooling processes under variable conditions specified, depending on the supply power, technological limitations and users’ requirements. Experimental studies have been also carried out in order to verify numerical modeling. The obtained results are reliable basis for optimal control, high efficiency and ensuring of required glass quality.