How many capacitors are in a hybrid reactive power compensation system?

The circuit diagram of compensation capacitors and peripheral hardware in the implemented hybrid reactive power compensation system is also given in Fig. 7. As can be seen in this figure, there are six single-phase and two three-phase capacitors. Rated powers of each capacitor are also shown in the same figure.

How a capacitor is calculated based on power factor?

In the first step, given power factor of each load node is predetermined and then capacitor at the load node is calculated based on the known power factor, active power, and reactive power of the load. In the second step, the total compensation power of all capacitors at electric loads is determined.

What is the limit of capacitors?

Limit of Capacitors The reactive power of all capacitors placed in a system must be limited as the following inequality: where Qcapc is the generation of the c th capacitor; and is the maximum generation of all capacitors.

How does a capacitor switched compensation system work?

The controller, after some calculations, decides on the capacitor stages closest to these powers and activates them. However, after the capacitors are switched on/off, unlike conventional capacitor switched compensation systems, the reactive powers drawn from each phase of the grid must be of the same type.

Are switched capacitors cost-effective?

Although switched capacitors are cost-effective, it is almost impossible to achieve full reactive power compensation with them. Other tools that their reactive power outputs are fully controllable are expensive solutions.

How do capacitors increase power factor of load?

In the method, local capacitors at each load are determined to increase power factor of load to an expected value first and then a number of capacitors are placed in distribution lines with two factors, location and capacity by using the three applied methods.