A new control method for active power filters with voltage detection

In this paper, a new control method for active power filters with voltage detection is proposed. The proposed control method is based on the real-time simulation of an LC filter accomplished using a digital signal processor. Thus, the proposed active power filter acts equivalently as an LC filter whose circuit parameters, such as the resonant frequency and quality factor, can be adjusted to obtain the most effective compensation characteristics during the operating condition. The effectiveness of the proposed control method is demonstrated by some experimental results and computer simulation.