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Low-cost PWM speed controller for an electric mini-baja type vehicle
(2007-01-01)
This paperwork presents a Pulse Width Modulation (PWM) speed controller for an electric mini-baja-type car. A battery-fed 1-kW three-phase induction motor provides the electric vehicle traction. The open-loop speed control ...
High speed elevator dynamic analysis and control on severe conditions
(2020-01-01)
The advent of verticalization after WWII made the densification on major cities. Thus the high-rise building was the solution to accommodate the vast amount of people on cities. The elevator was a solution to vertical ...
On the controllers' design to stabilize ground resonance helicopter
(2019-12-01)
Ground resonance (GR) in helicopters is a potentially catastrophic instability commonly caused by coalescence of the regressive cyclic blade lag mode with the fuselage motion in certain rotor speed ranges. It can limit the ...
Variable Speed Control Moment Gyroscope in an Inverted Pendulum
(Asme, 2019-11-01)
The use of variable speed control moment gyroscope (VSCMG) is an effective way for attitude stabilization of aerospace devices. It is possible to control the oscillation and direction rate of change in rigid bodies in space ...
The cutting time with abrasive discs can be reduced by the control of the cutting speed
(1997-12-01)
This paper presents an experimental study on the life of abrasive discs in cut-off type operations with two conditions of cutting speed. The cutting time is shown with a comparative analysis of the cutting speed.
A DCCP Variant for High Speed Network
(Ieee-inst Electrical Electronics Engineers IncPiscatawayEUA, 2012)
Power performance evaluation of an electric home fan with triac-based automatic speed control system
(Imeko, 2009-01-01)
In order to provide a low cost system of thermal comfort, a common model of home fan, 40 cm diameter size, had its manual four-button control system replaced by an automatic speed control. The new control system has a ...
Speed estimation for induction motor using neural networks method
(2013-07-15)
This work presents an alternative approach based on neural network method in order to estimate speed of induction motors, using the measurement of primary variables such as voltage and current. Induction motors are very ...