ENGINEERING OPTIMIZATION PROBLEMS OF ELECTROMAGNETIC DEVICES.

The design of the device can be described as a function of the geometrical dimensions and electromagnetic parameters, such as flux and current densities. In most cases the design has to comply with prespecified standards and additional customer requirements which characterize the properties of the device. These properties include efficiency, power factor, etc. , or dimension limits such as the height of the device. The optimal design may require to satisfy minimum production cost, least annual expenditure, minimum weight, etc. , which are commonly called the ″objective function″ whose optimal parameters are to be found. In general, both the objective function and constraints set are nonlinear and multivariable functions.