Brushless DC electric motor (BLDC motors, BL motors) also known as electronically commutated motors (ECMs, EC motors) are synchronous motors that are powered by a DC electric source via an integrated inverter/switching power supply, which produces an AC electric signal to drive the motor. In this context, AC, alternating current, does not imply a sinusoidal waveform, but rather a bi-directional current with no restriction on waveform. Additional sensors and electronics control the inverter output amplitude and waveform (and therefore percent of ....etc

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ppt on four quadrant operation and speed control of bldc motor on simulink/matalb ....etc

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Abstract
An Ad-Hoc network is a collection of wireless mobile nodes dynamically forming a temporary network without the use of any evolving network infrastructure or centralized administration. Due to the limitations of the wireless environment it may be necessary for one mobile node to enlist the need of other hosts in forwarding a packet to its destination. Thus multiple network hops may be needed for one node to exchange data with another across the network. For this purpose a routing protocol is used to discover routes between these nodes ....etc

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K.D. Slack




ABSTRACT
The traditional approach to power factor correction in a facility is to add capacitors to individual loads such as motors and fluorescent lighting circuits, to add a capacitor bank with switching to a major distribution panel, or to add a capacitor bank with switching to the power input panel from the utility lines. Recently it has been shown that careful selection of high-efficiency motors for a facility can result in new motors with a significantly higher power factor than t ....etc

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sir,
pl.send the materials for PID Design Method for DC Motor Speed Control
PID Controller Design Method for BLDC motor; Mathematical model; ....etc

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i need this topic's ppt in one day.i found only the thyristor controlled series capacitor not thyristor switched series capacitor.i need the comparision between both of it. ....etc

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By:
P. Kedar Nath
(08MPE016)
M.Tech- PED




OBJECTIVE
to generate the sinusoidal signals using FPGA .
to generate the Triangular signals using FPGA .
to generate the sinusoidal PWM signals using FPGA (Xilinx FPGA SPARTAN 3, XC3S400)
to control the speed of BLDC motor using sinusoidal PWM Technique.

Work completed so far:-
Introduction of FPGA
Introduction of VHDL
Flow Chart for sine wave generation
Flow Chart for comparison of sine wave and DC
....etc

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speed control of bldc motor using fuzzy logic ppt

Abstract

Brushless dc (BLDC) motors are very popular and are replacing brush motors in numerous applications due to its superior electrical and mechanical characteristics owing to its trouble free construction. This paper presents the BLDC motor sensorless speed control system with fuzzy logic implementation. The sensorless techniques based on the back EMF sensing and the rotor position detection with a high starting torque is suggested. The rotor position is aligned at standstill for without ....etc

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ppt of simulation of four quadrant speed control of bldc motor

ABSTRACT

Brushless DC (BLDC) motor drives are becoming more popular in industrial, traction applications. This makes the control of BLDC motor in all the four quadrants very vital- The motor is operated in four steady state operating modes of torque-speed plane. To control a BLDC machine it is generally required to measure the speed and position of rotor by using the sensor because the inverter phases, acting at any time, must be commutated depending on the rotor position. Simulat ....etc

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i need ppt for speed and current control of bldc motor using sliding mode ....etc

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