Combined with developing design of control system for electrostatic precipitator(EP) in two pojects of thermal power plants

a double machine redundant faut-tolerant system consisted of ethernet intelligent converters adopting serial ports has been put forward

making the host computer to get rapidly through the industrial ethernet and to take EP as an organic entity.On the basis of outlet smoke detecting signal and with goal of optimal efficiency for dust removal

taking advantages of expert knowledge base

the optimization of rapping

automation of energy management

and the control system scheme of back corona detection have been realized.Practical application shows that this scheme has short developing period

low cost

high reliability

and can make the EP to optimize its operation;The said scheme can be used for large-scale coal-fired power plants

which have comparatively high requirements for EP control.