The use of p-q control in single-phase active power filter for dynamic reactive power compensation

The subject of the discussion is the use of single-phase active filter for compensating dynamic changes of reactive power which may occur in office buildings. This circuit consumes reactive power with high dynamic changes at the level of minutes or seconds and fractions of seconds, making it impossible to efficiently compensate reactive power with standard capacitors-based compensators. Modified p-q algorithm was used to control single-phase active power filter. The considerations were supported by simulations carried out in MATLAB-Simulink environment.