JThis paper concerns the design, optimization and commutation of a six degree-of-freedom planar actuator with active magnetic bearing. The planar motor has a stationary coils Z array and a translator with a Halbach magnet array. During movements in the xy-plane, the set of energized coils changes with the position of the translator. In this paper a method forI the electromagnetic design of this type of actuator is discussed G and several topologies are compared.

This paper presents three types of magnetostatic models of ironless planar actuators with moving magnets. The models predict the force and torque exerted on the translator of the actuator, which can be positioned in six degrees-of-freedom with respect to the stator coils. The force and torque are calculated with the Lorentz force law. The analytical and numerical models can be used for the design of large planar actuators, for the fast comparison of actuator topologies, and in the decoupling and commutation algorithm. The models have been verified with experiments.

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C e n t r u m v o o r W i s k u n d e e n I n f o r m a t i c a MAS Modelling, Analysis and Simulation Modelling, Analysis and SimulationManifold-mapping optimization applied to linear actuator design ABSTRACT Optimization procedures in practice are based on highly accurate models that typically have an excessive computational cost. By exploiting auxiliary models that are less accurate but much cheaper to compute, space-mapping has been reported to accelerate such procedures. However, the space-mapping solution does not always coincide with the accurate model optimum. We introduce manifold mapping, an improved version of space mapping that finds this precise solution with the same computational efficiency. By an example in linear actuator design we show that our technique delivers a significant speed-up compared to other optimization schemes.2000 Mathematics Subject Classification: 65K10, 65M60, 65N55, 65Y20, 90C31

This paper will give an overview of the design, manufacturing and testing of a high speed (16000 rpm and 30 kW) AFPM synchronous machine, which is mounted inside, and as an integral part of, a flywheel; this system will subsequently be used for transient energy storage and ICE operating point optimization in an HEV. The paper focuses on the major design issues, particularly with regard to the high rotational speed, and investigates the loss mechanisms which are apparent therein, eg.iron losses, rotor losses, and friction losses. The paper describes the high-speed testing facility and includes measured results; these will be compared to calculated values.