Automating the design of low frequency electromagnetic devices – a sensitive issue

Abstract

This paper discusses the possibility of automating the design of electromagnetic devices. Several paradigms currently exist to accelerate the design process, search the design space and examine the effects of tolerances on various parameters. Amongst these are semantic networks, response surfaces, interval mathematics and sensitivity analysis. This paper explores all of these and also suggests what is needed in the future in order to create a true computer based design system.

Synthesis of Application-Optimized Air Gap Field Distributions in Synchronous Machines

“…Many scientists have been dealing with the shape synthesis of parts of electrical machines or other electrical devices for many years. One can mention here, among others, Lowther [13][14][15][16], Sykulski [17][18][19][20][21][22][23][24], Di Barba [25][26][27], Mognaschi [28,29], Adamiak [30][31][32][33], and teams cooperating with them.…”

“…In all the shape synthesis problems, the number of finite elements in the synthesis region G 0 is bigger than the number of moving points (k > m) so that the system of Equation ( 13) is overdetermined. The solution z 0 of the system (13) in the sense of the least-squares minimizes the following function Q:…”

An Intelligent Decision Support System for Design of Brushless Direct Current Motors

“…The system uses these knowledge types to relate a new set of specifications to a stored case in the case base, and do the modifications on the retrieved case. Lowther [50] investigated the effects of different design parameter changes on the performance of final electromagnetic system. He studied four paradigms for this purpose namely, semantic networks, response surfaces, interval mathematics and sensitivity analysis.…”

Modelling and position control of voltage forced electromechanical actuator

“…Using the magnetic vector potential A and electric scalar potential V as electromagnetic field variables, the electric field intensity E in conducting region (V C ) and magnetic flux density B in conducting and non-conducting region ðV C < V N Þ is defined as (Biro and Preis, 1989;Hameyer and Bellmans, 1999;Lowther, 2003;Sykulski et al, 1995):…”