Energy savings and operation improvement of rotating cement kiln by the implementation of a unique new drive system

摘要

Analysis, simulation, implementation and results of a new kiln drive system consisting of two AC motors of 315 kW each, on an existing common tooth gear, as a new contribution for the operational optimisation of rotating kilns, are presented in this study. Two separate inverter units control the two asynchronous motors with a common rectifier. This study also illustrates how backlash problems on tooth gear and maintenance needs are eliminated while reducing operational costs, down-times and energy consumption, by applying contemporary technology, including power electronics and dynamic performance in control systems.