Automatic control and management of electrostatic precipitator

The efficient operation of electrostatic precipitator (ESP) in practice depends upon many variables, such as the charging method, particle size, gas flow, temperature, dust resistivity, etc., with the air pollution control requirements becoming increasingly stringent, it is essential to closely monitor and accurately control the key parameters of ESP control system. The efficient functioning of ESP normally means minimizing the power consumption and maximizing dust collection. Several control strategies can be adopted to meet this broad requirement. In this paper, a distributed control technique of ESP which uses the actual dust emission and boiler load as feedback inputs is explained. The electrostatic precipitator management system (EPMS), which is a system designed by M/S BHEL to meet the above control strategies using the distributed architecture to achieve efficient ESP operation is also described