300MW机组电除尘节能的研究与应用

Study and Application of Energy-Saving System of Electrostatic Precipitation in 300 MW Unit

对300 MW机组电除尘器进行研究,提高了高压硅整流控制系统的效率,保留其现有控制功能、保护功能、通讯功能的情况下,进行柜内的软硬件改进,使它具备"自动选择运行方式"功能。该功能使高压硅整流系统,在上位机IPC系统的有效调度下,自动适应工况变化,调节系统控制模式,实现减少高压硅整流系统输出功率的情况下,仍然可以保证除尘器的除尘效率,从而实现保效节能。

Through study on electrostatic precipitation in 300 MW unit, inside hardware and software were improved to equip them with automatically selecting operation mode and to enhance efficiency of 16 high-voltage silicon rectifier control sysytems. At the same time, the systems＇existing functions including control, protection, communication were retained. The automatically selecting operation mode enables the rectifier control system adapting modes according to circumstance so as to improve electrostatic precipitation efficiency under reduced output power of high-voltage silicon rectifier control system.