Full Automatic Control Strategy and Test of 330 MW Thermal Power Unit RB

An automatic control strategy have been introducedinthispaper,it involves the runback( RB) function ofthe thermal pow er unit. Several optimizations of control strategy and subordinatecontrolsystemsw as proposed,such as Integrating the feed-forw ard and the override control into subordinate controlsystems. As a result,antijamming capabilityof systems has been remarkably enhanced,subordinate controlsystems w ere in state offully-Automation,the regulated quantity w as controlled w ithin a predetermined range. Optimizations ensured the safe operation of the unit in state of auxiliary trip fault. Optimizations have been tested in M ariveles Pow er Plant of Philippines and abtained ideal Performance,show ing the reference significance to debugging and modification of similar units.