ABSTRACT

The objective of active power factor correction is to make the input to a power supply look like a simple resistor. An active power factor corrector does this by programming the input current in response to the input voltage. As long as the ratio between the voltage and current is a constant the input will be resistive and the power factor will be unity. When the ratio deviates from a constant, the input will contain phase displacement, harmonic distortion or both and eithe ....etc

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1. DISTRIBUTION SYSTEM

1.1 General description of Distribution System:

Distribution system is that part of the electric power system which connects the high voltage transmission network to the low voltage consumer service point

In any distribution system the power is distributed to various uses through feeders, distributors and service mains. Feeders are conductors of large current carrying capacity which carry the current in bulk to the feeding points. ....etc

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Presented By:-
Tejaswinee Darure


Longitudinal Dynamics
u(t) : axial velocity
w(t) : normal velocity
V(t) : velocity magnitude
α(t) : angle of attack
γ (t) : flight path angle
θ (t) : pitch angle
 x’(t) = Ax(t) + Bu(t) --------(1)
Consider , state feedback as -
u(t)= - K*x(t) --------(control law)
 This indicates that instantaneous states are given as feedback where ....etc

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Design and Construction of a Remote Controlled Fan Regulator
Abstract
The paper presents a simple design and implementation of a remote controlled fan regulator. It enables the user to operate a fan regulator from approximately 10 meters away. The remote transmits a tone using an infrared light-emitting diode. This tone is decoded by a receiver, since the receiver only switches when the tone is received. The system was broken down into simpler functional blocks namely; infra-red transmitter, infra-red sensor, signal ....etc

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The features of this device are:
5 speed fan regulator, Digital display, Timer, Low temperature shutdown switch and also a Buzzer
This circ uses PIC 12F675 from Microcchip and CD D4026 (De cade Counters/Dividers +
Decoded 7 Segment Display Outtputs).


How to Operate
As IR pulses are received, circuit will count up an the increase of fan speed. speed can be controlled from 0-5.current. The seleection of the user is displayed on seven segment display also for convenience.

Timer mode:
To enter timer mode go to 6 ....etc

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Many analog systems need a stable power supply voltage that does not vary with temperature and time in order to operate properly. In a battery operated system the battery voltage is not stable, e.g. it decreases with decreasing temperature and with ageing. In that case a voltage regulator must be used, that regulates the battery voltage and generates a stable supply voltage to power other circuitry. In this thesis a voltage regulator to be used in a battery operated system has been designed which meets the given specification of stability and p ....etc

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Abstract
A computer algorithm for optimal voltage controlwith voltage regulators, suitable for large radial distribution networksis given in this paper. An objective function concerning thetotal cost of the voltage regulators (investment and maintenancecost) as well as the cost of losses of the examined networks is developedand constitutes the base of the algorithm. This algorithmmakes the initial selection, installation and tap setting of the voltageregulators, which provide a smooth voltage profile along the network,utilizing former ....etc

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Submitted by
ALVASIM P. A.
ANUMOL R.
GEO JOY
NIMMY YESUDAS
PRADEEP K. VIJAYAN

MET’S SCHOOL OF ENGINEERING
MALA, THRISSUR DISTRICT

ABSTRACT

Remote controlled Fan Regulator is one of the applications of electronics to increase the facilities of life. Fan is one of the unavoidable Electronic equipment in our day today life. It has become essential element without which people can’t lead a smooth life. The presence of a fan in ....etc

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Abstract
In this paper, we present a novel maximum power point tracking method for a photovoltaic system consisting of a photovoltaic panel with a power electronic converter; the whole is feeding a battery. This maximum power point depends on the temperature and irradiation conditions. A robust control using a PI regulator is used to track this maximum power point. The synthesis of this regulator has been achieved by using Bode method. For having a transfer function of the system, we have used a small signal modeling. Satisfactory theoretica ....etc

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Design of Voltage Regulator
A transformer is a device with two or more stationary electrical ckt that are conductively disjointed but magnetically coupled by a common time-varying magnetic Field. Transformer are basically passive device for transforming voltage and current one of the windings, generally termed as secondary winding, transformer energy through the principal of mutual induction and drivers power to the wad. The voltage level at primary and secondary windings are usually different and any increase or decreas ....etc

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