DMCplus advanced control technology has been successfully applied at more t
han 1000 plants worldwide. This article details a steam and electrical (cog
eneration) power application at the Mitsubishi Chemical Corporation (Mitsub
ishi) Yokkaichi Plant in Japan. The objective of the DMCplus advanced contr
ol system is to drive the plant to the lowest operating cost for the steam
and electrical power while meeting user demand at the site.