Analysis and Experimental Verification of a Variable Speed Turbo Air Centrifugal Compressor System for Energy Saving

Conventional constant speed turbo air centrifugal compressor systems (TACCSs) consist of an electric motor driven at the and inlet guide vane (IGV) for pressure control. TACCSs with inverter a variable drive (VSD) are more efficient than conventional TACCS because they have wide operating range can minimize power consumption. Therefore, this paper proposes quadratic V/f control VSD to reduce electrical mechanical energy losses. To verify saving effect proposed controls, analyzes performances system (EMDS) using considering load conditions (TACC) Furthermore, (CSD) IGV were compared analyzed in test bench that represented actual factory environment. As result, experimentally verified savings 4.44% 23.37% controls. In addition, economic feasibility was by analyzing recovery period initial investment due addition inverter.