论文部分内容阅读
研究特高压输电对汽轮机组的影响对于实现两者协调发展具有重大意义。阐述了特高压输电技术的基本特点,研究了汽轮机组的运行特性,在此基础上,然后结合某省各大电厂的发电现状,分别从特高压输电正常情况和非正常情况两个方面对汽轮机组的影响展开分析,提出了策略式评估体系以指导一次调频参数的调整,并总结出机组低负荷运行的应对措施。针对特高压输电故障情况下对机组弯扭振动的影响,结合三点故障评估指标提出了整体式在线调整体系以优化机组运行状态,探讨了未来的发展方向和需要解决的问题。
Studying the influence of UHV power transmission on steam turbines is of great significance for the coordinated development of the two. The basic characteristics of UHV transmission technology are expounded and the operating characteristics of the turbine are studied. Based on this, combined with the current status of power generation in major power plants in a certain province, the turbines are respectively analyzed from the normal and abnormal conditions of the UHV transmission. Analysis of the impact of the group, put forward a strategic evaluation system to guide the adjustment of a frequency tuning parameters, and summed up the unit of low-load operation measures. Aiming at the influence of UHV transmission faults on bending and torsional vibration of units, an integrated on-line adjustment system is proposed to optimize the operation status of units according to the three-point failure assessment index. The future development direction and problems to be solved are also discussed.