水泵水轮机“S”特性改善方案

Improvement Project Analysis on Pumped Turbine"S"Performance

针对河北张河湾蓄能发电有限责任公司水泵水轮机存在"S"特性的问题,提出在真机上加装非同步导叶来改善机组空载稳定性的方案,分析非同步导叶引起的振动问题,介绍对非同步导叶数量和开度进行调整的改进措施。

In view of pump turbine occurs＂S＂performance of Hebei Zhanghewan Storage Power Co. Ltd. , presents the project of adding nonsynchronous guide vane to improve unit no-load stability, analyzes the vibration because of adding nonsynchronous guide vane, and introduces improvement measure on adjusting number and opening angle of nonsynchronous guide vane.