一、推广变频调速技术的重要性　　节能是我国实现经济增长由粗放型向集约型的战略转变，提高经济竞争力、减缓和治理环境污染的有效手段。　　我国节能的主要对象是工业，而火力发电厂的节能是重要的一部分。目前，全国电源结构中，火电占74％（发电量占80％），水电占25％ First, promote the importance of frequency control technology Energy conservation is China’s economic growth from extensive to intensive strategic changes, improve economic competitiveness, reduce and control environmental pollution effective means. The main target of energy conservation in China is industry, and energy conservation in thermal power plants is an important part. At present, in the national power structure, thermal power accounts for 74% (power generation accounts for 80%), and hydropower accounts for 25%.