Conventional direct torque control (CDTC) for brushless DC motor (BLDCM) using proportional integral (PI) controller suffers from ripple minimization and speed regulation issues. A novel method in fusion with space vector pulse width modulation (SVPWM) DTC optimal PI is developed to minimize these In this method, SVPWM replaces switching table hysteresis controllers CDTC. To get better performa...

The main goal of optimal design of single phase induction motors with permanent capacitor is maximization of the efficiency and minimizing the manufacturing cost. Mathematical classic methods can be used for design of these motors but they need to linearization and simplification in model and formulas. This linearization is caused that design precision decreases while random search methods such...

Single-phase flux reversal motors (FRMs) with sintered rare-earth permanent magnets on the stator for low-cost high-speed applications have a reliable rotor and good specific power. However, to reduce eddy current loss, be segmented into several pieces their cost increases number of magnet segments. An alternative can bonded magnets, in which loss is almost absent. The remanence lower than that...

This paper presents performance analysis of permanent magnet brush less dc motor (BLDC) using FEA based CAD package MagNet 6.13.First the characteristics of the standard BLDC motor is analysed. Then the design modifications are introduced and the performance of the machine is analysed. Based on the results optimum design is obtained.

In this paper multi-objective evolutionary algorithm is proposed to design a universal electric motor. Designing a product often incorporates multiple objectives. Designing a product family has an added tradeoff, between commonality and individual product performance. The presence of multiple objectives gives rise to a set of Pareto-optimal solutions for individual products as well as the produ...

in zero acceptance number sampling plans, the sample items of an incoming lot are inspected one by one. the proposed method in this research follows these rules: if the number of nonconforming items in the first sample is equal to zero, the lot is accepted but if the number of nonconforming items is equal to one, then second sample is taken and the policy of zero acceptance number would be appl...