Xu Dehong

Integrated EMI filter design with flexible PCB structure

A novel integrated EMI filter structure is proposed in this paper, based on the flexible PCB integrated L-C winding. By employing this integrated L-C structure, CM inductors, DM inductors and CM capacitors are integrated in a single unit. By compare with the planar PCB winding that used in previously proposed method for integrated EMI filters, we found that flexible PCB winding need less length, which means less loss and room. A prototype was built, and measurement result presented.

Torque ripple minimization in switched reluctance motors using fuzzy-neural network inverse learning control

The purpose of this paper is the development of fuzzy-neural network (FNN) inverse learning control algorithms for torque-ripple minimization of SRMs. The approach consists of two FNN modules, which spare the same weight values. The learning FNN module is used to adjust the weight values on-line based on observations of the SRMs (T-i-/spl theta/) input-output relationship in order to form an approximate dynamic inverse model i(T, /spl theta/) of SRMs. The controlling FNN module is used to predict the SRMs phase current waveforms required to follow a desired torque command. Detailed simulation results show good response characteristics for a four-phase SRM.