# Motores

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• Publicado : 28 de noviembre de 2010

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LABORATORIO DE ELECTRONICA INDUSTRIAL
Dr. RAFAEL CAMILO LOZOYA

PROYECTO FINAL

TEAM MEMBERS
ALEJANDRO FLORES GÓMEZ
GENARO ABRAHANN TRUJILLO
DANIEL ALEJANDRO LÓPEZ LÓPEZ

Objective
In this project we consider a control structure which is universally used in the industry. This is a fixed structure controller called a PID controller.

Students will be able to develop a PID controlsystem with which to control a DC motor, the system will be made with the knowledge acquired during the semester, applying concepts such as DAC, ADC, Serial Communication and types of control.
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Introduction

A PID (Proportional Integral Derivative) is a feedback control mechanism that calculates the deviation or errorbetween a measured value and the value to be obtained to implement corrective action to adjust the process. The calculation algorithm of PID control is given in three distinct parameters: the proportional, integral, and derivative.

The Proportional value determines the current error response. The Integral generates a correction proportional to the integral of the error, it assures us that with anadequate control effort, tracking error is reduced to zero. The Derivative determines the reaction time when the error occurs. By adjusting these three variables in the PID control algorithm, the controller can be designed to provide a control that requires the process to be performed. The response of the controller can be described in terms of control response to an error, the degree to which thedriver reaches the "set point", and the degree of oscillation of the system. Note that the use of PID control does not guarantee optimal system control or stability.
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1. nombre
1. objective
2. goal
3. aim
4. target
5. lens
6. end
7. bomb site
8.objective
9. factual
10. realistic
11. detached

Operation

For a PID control system to function properly it requires three basic parts in its development:

1.-Sensor
2.-Controller
3.-actuator

The sensor provides an analog or digital signal to the controller, which represents the current point which is theprocess or system. The signal can represent that value in voltage, electric current or frequency. In the latter case, the AC signal, unlike the previous two, which are on DC.

The external controller reads a signal representing the value to be achieved. This signal is called a point of reference, which is of the same nature and has the same range of values that the signal provided by the sensor.To enable this support and, in turn, the signal can be understood by a human, will have to establish some kind of interface.
Proportional Control
Proportional controller

The share is the product of the error signal and the proportional constant to make the steady-state error is almost nil, but in most cases, these values are only optimal in a certain portion of the total range control and aredifferent optimal values for each portion of the range. However, there is also a constant value proportional limit beyond which, in some cases, the system reaches values higher than desired. This phenomenon is called overshoot and, for safety reasons, should not exceed 30%, although it is desirable that the proportional or even produce overshoot.
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1. nombre
1. objective
2. goal
3. aim
4. target
5. lens
6. end
7. bomb site