A REMEDIAL MEASURE FOR DIVERGENCE PHENOMENON OF ELECTRICAL POWER SYSTEM DYNAMICS BASED ON IMPROVED KALMAN FILTER ALGORITHM

Adjei-Saforo Kwafo Edmund, Su Hongsheng

Abstract: The presence of harmonics in electrical power system has been sole contribution of ever-growing utilization of non-linear electrical loads as well as power electronic equipment. As much as to improve operation of electrical power system by maintaining stable, controlled and quality power flow in electrical networks, there should be an appropriate method to quantify accurately, the presence of the harmonic pollution in these systems. It must be worth noting that the selected approach should be precise while being computationally effectual. Therefore, this research work seeks to propose the non-linear state estimation approach which is based on the improved Kalman Filter to measure harmonics from a distorted signal in electrical power system. The proposed technique exhibits high performance of superiority and present real estimation on face of quantities variation of the distorted source. Further, the proposed technique vis-á-vis other conventional methods is simple and robust, hence less hardware requirements and rock-bottom computational cost.

Keywords: Improved Kalman Filter (IKF); Kalman Filter (KF); Electrical Power System; Electrical Load; Harmonics Estimation.

DOI: https://doi.org/10.15623/ijret.2016.0510033