In order to save energy and reduce consumption

as well as to decrease pollutants emission

an intelligent hybrid model predictive control technology

which combines intelligent logic with hybrid model dynamic control strategy

has been put forward

two large control modules for steam temperature control and for combustion optimization being established.The steam temperature control module is mainly used for controlling the main steam temperature and the reheated steam temperature;the combustion optimization module is mainly used for controlling the boiler efficiency and reducing NOx emission.Taking unit no.4 in one power plant as example

the application of said technology and result of implementation have been presented.After implementation of the intelligent hybrid model predictive control technology

the main steam temperature can be effectively controlled within the set value ±5 ℃

the boiler efficiency being enhanced by 0.37%

the concentration of NOx emission being decreased by 16.64%.