We are hoping to create a lab for students at our university that requires them to measure the power factor and correct for it. We are working with 230V AC and have a maximum power of 300W. We were hoping to create a device that lets us adjust the power factor, but have run into quite a few problems. Our biggest issue is that we require extremely large inductors or resistors to make a significant effect on the power factor.
We were wondering if anyone had any good alternatives. We currently have a fan hooked up that results in a power factor of 0.6, but we were hoping to create something more compact.
Our current design is below, but does not have the correct inductors: