Abstract: The energy saving reformation of electrostatic precipitator control system in Hebi Fenghe Power Generation Corporation Limited was introduced. The energy saving theory of electrostatic precipitator control system was explained; the reformation scheme and construction plan were described; the significances of the power controller and the turbidity meter feedback for energy saving control were expounded. By comparing with the operation condition before reformation, it was proved that after reformation the more excellent technical data were achieved, the energy saving efficiency was increased, and the automation level of operation and management was raised. The significance of the energy saving reformation of electrostatic precipitator control system was affirmed, and its application and dissemination in power plant were analyzed and forecasted.

Key words: electrostatic precipitator, control system, reformation, energy conservation, economic benefit