Buscar
Mostrando ítems 1-10 de 175
New approach of induction machine drive using an adaptive digital PID controller with gain planning based on artificial neural networks
(1999-12-01)
The present work introduces a new strategy of induction machines speed adjustment using an adaptive PID (Proportional Integral Derivative) digital controller with gain planning based on the artificial neural networks. This ...
Power performance evaluation of an electric home fan with triac-based automatic speed control system
(2009-12-01)
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 ...
Recurrent neural network for induction motor speed estimation in industry applications
(2006-12-01)
Many electronic drivers for the induction motor control are based on sensorless technologies. The proposal of this work Is to present an alternative approach of speed estimation, from transient to steady state, using ...
A high speed 3.3V current mode CMOS comparators with 10-b resolution
(2000-12-01)
This paper presents a high speed current mode CMOS comparator. The comparator was optimized for allows wide range input current 1mA, ±0.5uA resolution and has fast response. This circuit was implemented with 0.8μm CMOS ...
A hydraulic-pump speed controller in agricultural sprayers based on the automation and use of the control area network (CAN) bus
(Ieee Computer Soc, 2018-01-01)
This paper presents the development of a speed control for a hydraulic pump based on automation and the use of the controller area network (CAN bus). As components of the project its result are considering the analysis of ...
Variable speed refrigeration system with HPF input rectifier stage
(2008-09-22)
This paper is based on the analysis and implementation of a new drive system applied to refrigeration systems, complying with the restrictions imposed by the IEC standards (Harmonic/Flicker/EMI-Electromagnetic Interference ...
Performance evaluation on electronic control systemsfor field sprayers using programmable logic controllers
(Amer Soc Agr Engineers, 2001-01-01)
The aim of this study was to develop a laboratory method for time response evaluation on electronically controlled spray equipment using Programmable Logic Controllers (PLCs). For that purpose, a PLC controlled digital ...
A novel HPF voltage source rectifier for variable speed refrigeration systems
(IEEE, 2006-01-01)
A novel single-phase voltage source rectifier capable to achieve High-Power-Factor (HPF) for variable speed refrigeration system application, is proposed in this paper. The proposed system is composed by a single-phase ...
Broiler Response to Different Wind Speeds
(2000-12-01)
Broiler production in Brazil has turned into a very competitive activity in the late years. Constant innovation leads to higher productivity maintaining the same cost of production, which is a desirable situation. Lately ...
Estimation of electrical machine speed using sensorless technology and neural networks
(2008-12-01)
The use of sensorless technologies is an increasing tendency on industrial drivers for electrical machines. The estimation of electrical and mechanical parameters involved with the electrical machine control is used very ...