SPECIAL REPORT: PROCESS CONTROL-1: Best practices improve control system performance

A holistic, best-practices approach will help refiners and petrochemical plant operators sustain and improve the performance of control system assets.In many plants, there is a significant gap between the long-term benefits promised and those actually delivered in the long term by multivariable predictive control (MPC) assets. The difficulty of diagnosing and resolving issues with MPC controllers results in the eventual failure of many systems.Performance can be sustained when the application is monitored and maintained. Effective MPC application maintenance requires the plant owner to monitor many interacting systems, including the MPC itself, regulatory controls, and instrumentation. It...

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