Control of harmonic voltage distortion with parallel simulated annealing

This paper proposes a method for controlling the voltage total harmonic distortion (THD) with a parallel simulated annealing technique. The nonlinear relationship between voltage harmonics and the voltage THD is identified using the revised group method of data handling (RGMDH) based on the self-organization technique. The voltage THD is controlled by some feature variables to decrease harmonic distortion. A simulated annealing (SA) technique is applied to minimize the voltage distortion factor. SA is a stochastic optimization method based on a physical annealing phenomenon. In order to obtain better solutions, this paper proposes a parallel simulated annealing (PSA) technique. PSA is a useful method because of the multi-point search. The effectiveness of the proposed method is demonstrated with test data.