为了达到火电厂大气污染物的排放标准，对1 000 MW超超临界燃煤机组脱硝、脱硫及除尘系统传统改造技术路线进行了研究。根据潮州电厂1 000 MW超超临界机组脱硝、脱硫、除尘等烟气环保设施的实际运行情况与广东省发展与改革委员会要求全省煤电机组“基本达到燃气轮机组排放限值”的差距，对该机组超低排放存在的问题进行分析和探讨，从工艺可行性、投资、工期以及之后的运行维护成本，对该机组环保设施改造的方案进行了研究，确定烟气环保设施改造的合适方案，实现大气污染物NO_x、SO₂、烟尘排放分别低于50、35、10 mg/m³。

In order to achieve the atmospheric pollutants emission standards of thermal power plant, the common modification technical routes of the denitrification, desulfurization and dust removal system of 1 000 MW ultra-supercritical coal-fired units are studied. The actual operation of the flue gas environmental protection facilities such as denitrification, desulfurization and dust removal of 1 000 MW coal-fired units are obtained. The requirement that the coal-fired units in Guangdong province basically reach the gas turbine emission limit is issued by the development and reform commission of Guangdong province. According to the gap between the actual operation and the emission limit of the coal-fired units, the problems of ultra-low emission of the units are analyzed and discussed. From the viewpoint of the feasibility of the process, investment, duration, and the operation and maintenance costs, the modification schemes of 1000 MW unit environmental protection facilities are researched. The appropriate reform projects of the flue gas environmental protection facilities are determined, which can reduce the emission of atmospheric pollutants, i．e., NO_x, SO₂ and flue gas, below 50，35，10 mg/m³.