The proposal of this project is to analyse the problem of the unnecessary consumption of the active power for an electrical industrial installation.
Creating a scale prototype that could be used for laboratory demonstrations on power factor control proposes.
Loads, transformers, lines, motors, etc absorb power that is actually more reactive. Consequently, more harmonics are generated.
Consumers of electricity have to be aware of this fact and to know that this causes higher voltage drops and conductive power losses.
A bad electrical industrial installation for the consumer will use more active power than reactive. Therefore, the power factor (cos O) will be smaller than one. For this reason the consumer A, is probably paying for and consuming more electricity than consumer B whose power factor (cos O) is around one. (Optimal power factor) [Ref.3, ch.3]
Different technologies can be used to achieve this:
- The insertion of capacitor banks which will generate a reactive power proportional to the voltage and the capacity.
- The use of Static Var Compensators where they are connected or disconnected from the network using thyristors acting as electronic switches. The voltage is in phase with the network voltage and the reactive generation is controlled by regulating the amplitude of the source.
- The use of AC Static Switches, which will activate or deactivate capacitors depending on the inductance load. This means between a regulator that will try to maintain (cosO= 1). (See Figure 1.1) using Static Var Compensators.
Thus, a technique to generate the reactive power has been found.