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Full-Text Articles in Engineering

Direct Torque Control Of Five-Phase Permanent Magnet Synchronous Machine, Mukhtar Ahmad Oct 2007

Direct Torque Control Of Five-Phase Permanent Magnet Synchronous Machine, Mukhtar Ahmad

Mukhtar Ahmad

Permanent magnet synchronous machines are becoming attractive in many industrial applications due to their high torque to inertia ratio, higher efficiency , and power density . Interest in Multi-phase motor drives has considerably increased during last few years. The main applications of multi-phase machines are in electric traction, electric vehicles, and hybrid vehicles. Multi-phase motor drives have many advantages including higher reliability and power density, and lower torque pulsations at higher frequencies


A Simple Scheme For Loss Angle Measurement Of A Capacitor’ , Mukhtar Ahmad Mar 2004

A Simple Scheme For Loss Angle Measurement Of A Capacitor’ , Mukhtar Ahmad

Mukhtar Ahmad

This paper presents a very simple electronic circuit for direct measurement of loss angle of a leaky capacitor. The circuit used can directly provide loss angle or tan /spl delta/ in terms of a pulse count. The circuit uses very few components, requires no special supply, and is suitable for a large range of capacitor values.


"Power System Frequency Deviation Measurement Using An Electronic Bridge, Mukhtar Ahmad Feb 1988

"Power System Frequency Deviation Measurement Using An Electronic Bridge, Mukhtar Ahmad

Mukhtar Ahmad

No abstract provided.


A Digital Tachometer For Measurement Of Low Speeds, Mukhtar Ahmad Aug 1984

A Digital Tachometer For Measurement Of Low Speeds, Mukhtar Ahmad

Mukhtar Ahmad

No abstract provided.