In: Electrical Engineering
With appropriate waveforms and a few sentences describe how a grid connected 4 quadrant VSCC inverter can supply active power, capacitive reactive power and inductive reactive power and where this may be useful in grid power quality control.
The operation of a grid connected 4 quadrant voltage source current controlled inverter alongwith waveforms is shown in detail. Current controlled means we are controlling the magnitude and direction of current ( whether from inverter to grid or from grid to inverter) while voltage direction/ polarity is fixed.