Wei, DonghuiCraig, Ian Keith2010-02-222010-02-222009-04Wei, D & Craig, IK 2009, ‘Economic performance assessment of two ROM ore milling circuit controllers’, Minerals Engineering, doi: 10.1016/j.mineng.2009.02.0130892-687510.1016/j.mineng.2009.02.013http://hdl.handle.net/2263/13169Economic performance assessment of control systems is receiving increasing attention in both academia and industry. A relevant framework is proposed in Bauer and Craig (Bauer, M., Craig, I.K., 2008. Economic assessment of advanced process control – a survey and framework. Journal of Process Control 18 (1), 2– 18) based on a comprehensive survey of the methods for economic analysis of advanced process control systems. The framework provides a formal procedure for the economic assessment of control systems. A practically motivated simulation study is used to cast the economic performance assessment of a nonlinear model predictive controller and three single-loop PID controllers for a run-of-mine milling circuit into this framework. Performance functions of the milling circuit, which dynamically relate the circuit process variables to monetary values, are developed based on a survey study on milling circuits and an in-depth literature study.enElsevierMineral processingMineral economicsEconomic analysisOre-dressingProgrammable controllersProcess controlPostprint Article