Electromagnetic design optimization of a disk permanent magnet Microgenerator

Optimization techniques can be used in a variety of fields in engineering. The aim of using such techniques is mostly to reduce the cost while keeping performance in an acceptable range. The terms “cost” and “performance” may have different meanings in different applications. Optimization task can also be offline or online. Online Optimization is mostly used for applications which optimization variables can be altered during operation. Duration of calculations is of a great importance in such applications. In offline optimization the time matter is of a less importance; However, Mistakes and malfunctions cannot be undone. Machine optimization task is classified in offline category. The design optimization of electrical machines is of a great importance because once the machine is manufactured, It is hardly possible to change its properties. In this paper design optimization of a disk permanent magnet machine is discussed. This machine is planned to be used in a microturbine-generator set and that is the reason it is called a “Microgenerator”