AEL-EECFP 高度な電力係数調整の応用

ADVANCED POWER FACTOR COMPENSATION APPLICATION - AEL-EECFP

革新的なシステム

The Advanced Power Factor Compensation Application, "AEL-EECFP", has been developed as a complement to AEL-RPC in order to study in depth the power factor compensation when there is a dynamic load.

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関連ニュース

概要

Industrial customers use three-phase power consumption with different power factors. If their power factor drops below a prescribed value, power losses in transmission lines increase. For this reason, the customers have to pay a penalty. In order to avoid these troubles, industrial customer installs power factor correction capacitors.

The Advanced Power Factor Compensation Application, "AEL-EECFP", has been developed as a complement to AEL-RPC in order to study in depth the power factor compensation when there is a dynamic load.

The three-phase induction motor is the most used motor in the industry. For this reason, a group servomotor and induction motor is included in this application. With this group, the user can cause different motor load conditions modifying the power factor.

Power factor compensation (when the induction motor is working) is necessary to avoid excess reactive energy. For this purpose the user can realize it manually through the three-phase capacitors module or automatically with advanced power factor controller module together three-phase digital capacitor banks module. The first module measures the voltage and current values of the grid and calculates the power factor. Such module enables the connection of six stages of capacitors, which enable the regulation of the power factor according to the desired value.

演習と指導の慣行

より実用的な練習をして、ユニットを完成させる

Some practical exercises possibilities of basic equipment (AEL-RPC):

  1. Wiring star and delta connection with capacitive and inductive loads.
  2. Overcurrent relay and power switch configuration and testing.
  3. Measurement of the active power consumed by a receiver in a pure resistive circuit.
  4. Measurement of the reactive power consumed by a receiver in a pure inductive circuit.
  5. Measurement of the reactive power consumed by a receiver in a pure capacitive circuit.
  6. Measurement of the apparent, active and reactive powers consumed by a receiver in a RL circuit.
  7. Measurement of the power factor of a receiver in a RL circuit.
  8. Computation and wiring of the capacitive load needed to carry out the appropriate power factor correction.
  9. Comparison of the active energy consumed after the compensation.
  10. Comparison of the reactive energy consumed after the compensation.
  11. Measurement of power factor after the compensation.
  12. Determination of the first and second power maxima.
  13. Determination of the power maximum in the event of an asymmetric load.

Some practical exercises possibilities with the specific modules of AEL-EECFP:

  1. Measuring the maximum and minimum reactive power levels of the grid.
  2. Studying the manual reactive power compensation for dynamic loads: induction motor coupled to servomotor.
  3. Measuring the reactive power consumed by a capacitive receptor.
  4. Comparison of the reactive energy before and after of manual power factor compensation.
  5. Optimum configuration of the reactive power controller.
  6. Checking the compensation control unit applying different reactive power levels.
  7. Automatic compensation of reactive energy (improvement of the power factor).
  8. Comparison of the active energy consumed after the automatic compensation.
  9. Comparison of the reactive energy consumed after the automatic compensation.
  10. Measurement of power factor after the automatic compensation.
  11. Results comparison between manual and automatic compensation.
  12. Several other exercises can be done and designed by the user.

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