Title :
Combining circuit theory and numerical field calculations in designing mini-mechatronic systems
Author :
Belmans, R. ; Hameyer, K.
Author_Institution :
Dept. of Electr. Eng., Katholieke Univ., Leuven, Belgium
fDate :
30 Apr-3 May 1995
Abstract :
In mechatronic system design, electrical motors are generally treated by a lumped parameter model and a torque versus speed or versus position characteristic. In the design and optimisation of electrical machines and actuators, as generally used for powering such mechatronics systems, modern finite element based CAD methods are employed. In order to link both approaches, macroscopic parameters are deducted from the microscopic field solution via the appropriate post-processing methods. For normal sized motors, this is a well known approach. However, for mini- and micromotors, requiring a three dimensional field solution, this is far less evident. Therefore, a technique is described to derive the parameters and the torques from the magnetic field for the magnetostatic motors and the electric field for electrostatic motors. The inductances, resp. capacitances are calculated. For the torque not only the average component, but also the torque variations as a function of the position are discussed
Keywords :
electric fields; electrostatic devices; equivalent circuits; finite element analysis; inductance; lumped parameter networks; magnetic fields; mechatronics; micromotors; permanent magnet motors; torque; electric field; electrical motors; electrostatic motors; equivalent circuit model; finite element based CAD methods; inductance; lumped parameter model; macroscopic parameters; magnetic field; magnetostatic motors; micromotors; microscopic field solution; mini-mechatronic system design; minimotors; post-processing methods; three dimensional field solution; torque variations; torque versus position characteristic; torque versus speed characteristic; Actuators; Circuit theory; Design automation; Design optimization; Finite element methods; Mechatronics; Micromotors; Microscopy; Power system modeling; Torque;
Conference_Titel :
Circuits and Systems, 1995. ISCAS '95., 1995 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2570-2
DOI :
10.1109/ISCAS.1995.519887