Harmonic Analysis of Federal University of Petroleum Resources, Effurun (FUPRE) Distribution Network

The goal of several electrical power industries is to provide higher-quality power. Electrical power network harmonics are one of the most fundamental causes of poor power quality. This has become a significant issue in terms of power quality issues. As a result, harmonic analysis became necessary to investigate when modeling the distribution network in order to reduce or eliminate harmonic current or voltage. Federal University of Petroleum Resources, Effurun, (FUPRE) Delta State Distribution Network harmonic analysis, has been implemented in this work using Electrical Transient Analyzer Program (ETAP) software with the support of accelerated Newton Raphson method. To detect the existing harmonic distortion, a harmonic load flow analysis was performed. Harmonic frequency scan analysis, which calculates plots of impedance angle and impedance magnitude, was also used to investigate system resonance problems. According to IEEE 519, the standard limit for voltage total harmonic distortion (VTHD) is 5%, but the VTHD obtained from the FUPRE Network was 26.54 – 29.94%. The IEEE 519 Standard states that voltage individual harmonic distortion (VIHD) should not exceed 3%; however, 3.02 – 18.83% was obtained in the FUPRE Network. To eliminate the prevailing harmonic distortion, capacitors of 0.4MVar, 15Mvar, 0.7Mvar, and 0.1MVar were used, and the VTHD obtained was between 1.26 – 2.59 percent, with VIHD eliminated. This significantly improved the FUPRE Distribution Network’s performance.