Study on Detection Method for Harmonic and Reactive Current in Single-Phase Circuit

The instantaneous reactive power theory is widely used in the detection of harmonic and reactive current in three-phase circuit, and can also be used in single-phase circuit detection. This paper deducts the detection method in single-phase circuit by constructing two-phase system based on the instantaneous reactive power theory. An improved algorithm to obtain the key circuit components is presented to avoid the shortages of existing documents. Many simulations have been achieved and the result illustrates the effectiveness and performance of the proposed method.