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1 成就“七·五”以来.我国电力工业有了迅速发展.1987年全国总装机容量是1亿千瓦.到1991年底已达到11810万千瓦。装机容量和发电量均居世界第四位。这期间的电力工业的主要特点如下:1.1 火电机组的蒸汽参数上了一个台阶。从70年代中期以前的超高压机组进入了以亚临界为主.开始出现超临界机组。标志是石洞口二厂1号机并网运行。1.2 火电机组的容量进一步提高.20万千瓦以上的机组得到了很大的发展.30万千瓦机组发展很快.60万千瓦机组.1985年底元宝山2号机发电.1989年平圩1号机投产;在新投机组当中大机组的比重迅速增加。1991年投产机组中.20万以上容量的机组总容量达到683万千瓦.占投产总容量的近70％。1992年将有3台60万千瓦机组投产。这标志着我国火电厂大机组的技术水平有了明显的变化。1.3 大机组的自动化水平有了很大提高。近几年建设的30万、60万千瓦机组采用了比较先进的热控系统.都具有80年代的国际水平。
Since the achievement of the “Seventh Five-Year Plan”, China’s power industry has enjoyed rapid growth, with a total installed capacity of 100 million kilowatts in 1987. By the end of 1991, it had reached 118.1 million kilowatts. Installed capacity and power generation rank the fourth in the world. The main features of the power industry during this period are as follows: 1.1 The thermal parameters of the thermal power plant have reached a high level. Since the mid-1970s, EHV units have entered sub-critical areas and supercritical units have started to emerge. The mark is Shidongkou No. 1 plant on the grid operation. 1.2 The capacity of thermal power units to further improve .20 million kilowatts and more units have been greatly developed .30 million kilowatts units developed rapidly .60 million kilowatts units .1995 by the end of Yuanbaoshan Unit 2 power generation. 1989 Ping Wei Unit 1 Put into production; among the new speculative units, the proportion of large units increased rapidly. The units put into operation in 1991. The total capacity of units with capacity of more than 200,000 reached 6.83 million kilowatts, accounting for nearly 70% of the total production capacity. In 1992 there will be 3 600,000 kilowatts generating units. This marks a significant change in the technical level of large units in China’s thermal power plants. 1.3 The level of automation of large units has been greatly improved. In recent years, the construction of 300,000, 600,000 kilowatts units using a more advanced thermal control system, all with the 1980s international standards.