AEL-DLT Dynamic Loads Application

DYNAMIC LOADS APPLICATION - AEL-DLT

創新系統

The Dynamic Loads Application, "AEL-DLT", has been designed to study the behavior of the dynamic loads in the field of power systems.

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一般說明

The Dynamic Loads Application, "AEL-DLT", has been designed to study the behavior of the dynamic loads in the field of power systems.

The application consists of a squirrel cage induction motor which will be used as a dynamic electrical load. In order to analyze its influence on the power grid, the application also includes a network analyzer to visualize the most relevant electrical parameters such as power factor, line currents, active, reactive and apparent power, among many other parameters. This analyzer also has a communications port with its own software to display the waveforms as well as the electrical parameters measured.

On the other hand, it is interesting to be able to study the traditional star/delta starting method in induction motors by means of the module included in this application. In this way it is possible to observe the difference between a direct start and a more progressive start as mentioned above. In order to perform the star/delta start, the application also includes a three-phase autotransformer that allows to adapt the voltage levels of the network to those suitable for the induction motor. Also included are two capacitor bank modules designed to perform mains power factor compensation. This is necessary when the mechanical load on the induction motor shaft increases. This is when, in real installations, capacitor banks are incorporated to optimize the power factor.

It is important to note that the "AEL-SERIN/CA-1KW" application must be purchased. This application is essential to be able to dynamically load the shaft of the squirrel cage induction motor. It is a servomotor with its respective controller that will allow to vary the mechanical load on the squirrel cage motor shaft in order to study its behavior in all its torque/speed curve spectrum. In this way it will be possible to observe the influence of this load on the electrical parameters of the network that will supply power to the motor. This is what happens in real electrical networks throughout the day. Electrical loads of different types are connected and disconnected, influencing the demand curve and also the overall power factor of the electrical network.

For advanced electrodynamic testing of electrical machines, it is recommended to acquire the Electrical Machines Control and Data Acquisition Software, "EM-SCADA", together with the "AEL-SERIN/CA-1KW" application. This advanced software allows the monitoring of voltage, current, torque and speed waveforms for the in-depth study of the electrical machines under test.

練習和指導練習

手册中包含的指导实践练习

  1. Study of direct starting of induction motor and the influence on the electrical parameters of the network.
  2. Study of star/delta starting with autotransformer of the induction motor and the influence on the electrical parameters of the network.
  3. Measurement of active, reactive and apparent power using the network analyzer for the analysis of the induction motor behavior.
  4. Study of power factor compensation during induction motor operation by connecting capacitor banks.
  5. Study of the influence of the variation of the braking torque of the servomotor on the induction motor.

与该单位进行更多实际操作

Practical exercises with the recommended software, "EM-SCADA":

  1. Real-time monitoring of torque.
  2. Real-time monitoring of the speed.
  3. Real-time monitoring of current and voltage RMS values.
  4. Real-time monitoring of current and voltage waveforms.
  5. Advanced electrodynamic study of the motor.
  6. Automatic braking test and real time monitoring of the results.
  7. Obtaining of the characteristic curves of the machine (torquespeed, torque-current, etc).
  8. Storage and comparison of the obtained results.
  9. Several other exercises can be done and designed by the user.

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