Current Thermal Power Plant Air Pol utant Emission Standards( GB 13223 -2011 )make more strin-gent restrictions for dust emission concentration of coal-fired power plants,the dust emission standards in key areas is raised from 50mg/m3 to 30mg/m3 . The out dust emission of ESP in many coal-fired power plants are difficult to achieve this standard. To solve these problems,a power plant adopted high-frequency power refor-mation in ESP. The work principle of high frequency power is introduced. The feasibility of using power -fre-quency instead of the traditional power frequency is analyzed. Some measures of the reformation are briefly dis-cussed. Through the reformation the construction costs are saved and the aim of is reached.%新的《火电厂大气污染物排放标准》（ GB 13223-2011）对燃煤发电厂的烟尘排放浓度作出了更为严格的限制，重点地区烟尘排放标准由50 mg/m3变为30 mg/m3。目前，国内部分火力发电厂电除尘器很难达到新标准要求。针对上述问题，某电厂对电除尘器进行了高频电源改造。介绍高频电源的工作原理，分析高频电源替代传统的工频电源方案的可行性，并以基建实例简要介绍工频电源改为高频电源的措施，实现节约基建成本，达到节能减排目的。
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