General Electric Technology Gmbh

Shu Zhang

Xinsheng Lou

Abhinaya Joshi

Bruce Wilhelm

Greg N Liljedahl

Jundong Zhang

John M Peluso

Method and system for adjusting a measured reheat outlet steam temperature ('R') to approximate a reheat outlet steam temperature setpoint ('R') in a boiler. An Ris compared to an R. If the Ris less than the Rand a position of a fuel nozzle tilt (&#x201c;TILT&#x201d;) is below a high limit of the fuel nozzle tilt (&#x201c;TILT&#x201d;), the TILTis increased while a flow rate of a secondary flue gas recirculation (&#x201c;SFGR&#x201d;) is kept constant. If the Ris less than the Rand the TILTis at the TILT, the SFGRis increased. If the Ris greater than the Rand the SFGRis greater than a low limit of flow rate of the SFGR (&#x201c;SFGR&#x201d;), the SFGRis decreased, while the TILTis kept constant. If the Ris greater than the Rand the SFGRis at the SFGR, the TILTis decreased.

Method and apparatus for reheat steam temperature control of oxy-fired boilers

An automatic tuning control system and method for controlling air pollution control systems such as a dry flue gas desulfurization system is described. The automatic tuning control system includes one or more PID controls and one or more supervisory MPC controller layers. The supervisory MPC controller layers are operable for control of an air pollution control system and operable for automatic tuning of the air pollution control systems using particle swarm optimization through simulation using one or more dynamic models, and through control system tuning of each of the PID controls, MPC controller layers and an integrated MPC/PID control design.

Automatic tuning control system for air pollution control systems

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Windsor Locks, CT, United States of America

Shu Zhang