用于静电除尘的新型三相恒流源  

A New Type of Three-Phase Constant-Current Power Supply for Electrostatic Precipitation

作　　者：冯彦杰[1] 金文博[1] 王欣[1] 田长凤 马莉[1] FENG Yanjie;JIN Wenbo;WANG Xin;TIAN Changfeng;MA Li(Beijing Huaneng Xinrui Control Technology Co.LTD.,Beijing 102209,China)

机构地区：[1]北京华能新锐控制技术有限公司,北京102209

出　　处：《电子器件》2018年第1期189-194,共6页Chinese Journal of Electron Devices

摘　　要：在静电除尘应用领域,设计了一种的新型三相恒流源。电源采用可控硅相控与LCL谐振电路相叠加的结构,具有对恒流源的电流可以连续调节的特点。此外,针对闪络时刻冲击电流高的问题,专门设计了火花电流抑制模块,对冲击电流在1μs内进行抑制,保证了电源的恒流特性。电源输出电压高,输出电流稳定,为今后的静电除尘电源侧的选择,提供了一种方案。In the domain of Electrostatic precipitation,a new type of three-phase constant-current power supply is developed.The power supply utilizes the structure which is a combination of the SCR and the LCL resonance circuit,having a feature of continuous current adjustment.Furthermore,aiming at the problem of high impulse current when a spark happens,a new impulse current suppression module is designed,which suppresses the impulse current within 1μs and ensures the stability of the constant-current.The power supply has a high voltage and stable current output,which provides a new strategy for the electrostatic precipitation in future.

关 键 词：静电除尘 恒流源 可控硅 LCL谐振电路 火花检测 

分 类 号：TM832[电气工程—高电压与绝缘技术]