Energy Audit in BUA Cement Plant Okpella Edo State using ETAP and MATLAB Software for Improved Performance

Abstract

This research work depicts the study of Electrical energy audit analysis of a cement plant, using BUA cement plant Okpella line one as a case study.  A survey of single line diagram distribution network of 11/0.415kv was analyzed using Electrical Transient Analyzer Program ETAP 12.6 and MATLAB Simulink/PSAT R2018a software, for modeling and simulation to perform a load flow analysis so as to provide optimal voltage profile for the purpose of optimizing energy efficiency, minimizing reactive losses, and to improve the Power Factor to a desired value. The sizes of the capacitor bank required to compensate the load reactive power was analyzed. The critical voltage Buses on the feeders were improved with placement of shunt capacitor using optimal placement capacitor tool in ETAP 12.6 and MATLAB Simulink/PSAT software. The application of ETAP and MATLAB Simulink/PSAT// software with the integration of shunt capacitor improved the real power and reactive power from 0.374476 p.u to 0.431572 p.u and 0.223837 p.u to 0.327201 p.u respectively. It is shown that there is a great reduction of power losses along the lines with the network compensation. This reduced the total amount of losses on the lines from (0.00276+ j0.00763) p.u to (0.0023+ j0.0035) p.u. The distribution system achieved an optimized power system that becomes reliable sustainable for production in BUA cement plant. The total optimal sizing capacitor bank with the capacitor of 909KVAR was used to compensate the entire network to improve the condition of the 11kv distribution network of BUA cement plant Okpella. The simulation results obtained gave a 0% violation on both Buses profile.