AEL-TI-07 Power Transmission Application with Synchronous Generator

POWER TRANSMISSION APPLICATION WITH SYNCHRONOUS GENERATOR - AEL-TI-07

INNOVATIVE SYSTEMS

Power Transmission Application with Synchronous Generator, "AEL-TI-07", has been designed to study power generation systems based onsynchronous generators.

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General Description

Power Transmission Application with Synchronous Generator, "AEL-TI-07", has been designed to study power generation systems based onsynchronous generators. This application is designed to demonstrate the most important operations and maneuvers carried out in powergeneration substations. In addition, this application explains the working principles of control and regulation devices of real turbines andgenerators.

One advantage of this application is that it can be expanded with a conjunction of additional and recommended applications. On thisway, a complete power system with generation, transmission, distribution and load consumption, can be studied.Students and teachers can study and investigate the operation of a real Smart Grid, from the energy is generated until it is consumed,analyzing the problems and solutions in each part of the process or in conjunction.

The application "AEL-TI-07" includes a servomotor-generator group (turbine-generator). Generator is a three-phase synchronous machineused to study power generation. It is coupled to a servomotor-brushless whose velocity is controlled with a servodriver included inthis application. Both servomotor speed and generator current excitation are controlled by cutting edge frequency/voltage controller.

This controller monitors and controls in real time all turbine (servomotor) and generatorparameters for keeping the generator frequency and voltage constants against loadvariations. In addition, the user can take the control of the turbine and generator in manualcontrol mode, provoking frequency and voltage perturbations which will be corrected withthe automatic frequency/voltage controller. In addition, this controller has the function of thesynchronization and protection relay. The user can monitor speed and voltage PIDs to studythe generator-motor stability.

In power generation systems it is very important to keep speed and voltage constants toavoid possible damages due to frequency and voltage oscillations. With this applicationstudents will learn the operation of a real frequency/voltage controller.

On the other hand, a series of additional modules are recommended to reach in this application its full operational potential:

  • Analog instrumentation module. This module allows measuring active, reactive, frequency, current excitation and voltage.
  • Analog synchronization module. This module allows to monitor the synchronization process.
  • Resistive, inductive and capacitive loads for different energy consumptions.

The application "AEL-TI-07", includes a SCADA Control and Data Acquisition System which represents faithfully a power generationsubstation with a turbine-generator control center with network analyzers, circuit breakers, transmission line, as well as, resistive, capacitiveand inductive loads. The SCADA is designed to control in real time of whole power substation, for instance, speed and voltage can beremotely controlled while the user observes the behavior of the operating system. On the other hand, it is possible to synchronize thegenerator with the national grid and take the control of the turbine and generator.

In addition, SCADA Control System acquires in real time many electrical parameters from the network analyzers. Power generation, powertransmission and energy consumption waves can be monitored. After electrical data acquisition it is possible carry out data logging forfuture analysis.

Exercises and guided practices

GUIDED PRACTICAL EXERCISES INCLUDED IN THE MANUAL

  1. Basic concepts of Smart Grids.
  2. Manual control of voltage and frequency of the generator in a Stand-Alone Grid.
  3. Automatic control of voltage and frequency of the generator in a Smart Stand-Alone Grid.
  4. Study of energy requirements and energy generation in a StandAlone Grid.
  5. Smart Metering of the generated and transported energy.
  6. Study of synchronous generator response when a resistive load variation occurs.
  7. Study of synchronous generator response when an inductive load variation occurs.
  8. Study of synchronous generator response when a capacitive load variation occurs.
  9. Synchronization operations with the synchronous generator and the grid.
  10. Representation of power generation waves through the Data Acquisition System.
  11. Visualization and comparison of the reactive load curves with and without power factor compensation.
  12. Display of measured values of the synchronous generator.
  13. Plotting of measured values vs time.
  14. Data processing, analyzing and exporting of generation, lines and load electrical parameters.

MORE PRACTICAL EXERCISES TO BE DONE WITH THE UNIT

  1. Many students view results simultaneously. To view all results in real time in the classroom by means of a projector or an electronic whiteboard.
  2. Open Control, Multicontrol and Real Time Control. This unit allows intrinsically and/or extrinsically to change the span, gains, proportional, integral, derivate parameters, etc, inreal time.
  3. The Computer Control System with SCADA allows a real industrial simulation.
  4. This application is totally safe as uses mechanical, electrical and electronic, and software safety devices.
  5. This application can be used for doing applied research.
  6. This application can be used for giving training courses to Industries even to other Technical Education Institutions.
  7. Several other exercises can be done and designed by the user.

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