水电机组监测诊断系统实时数据通道构建策略

针对水电机组监测诊断系统中实时数据通道面临着数据量大、实时性能要求高的特点,给出了分布式监测诊断体系逻辑结构,提出了一种实时数据智能存储策略:根据数据用途和保存周期不同,对数据采用分级保存,提高数据传输访问实时性;通过对机组运行工况标定和数据入库频度自适应调整的策略,保证每个特征工况合理数据量,用来对机组运行性能进行评价和趋势分析,缓解了数据库容量限制瓶颈问题.

A tactic of constructing real time data channels of monitor and diagnosis systems for hydro-generator units

In the monitor and diagnosis systems for hydro-generator units, the real time data channels are characterized by the high data real time acquisition and the great data scales. A logistic framework of distributed monitor and diagnosis system is brought forward, and a tactic for intelligent data store is introduced to reduce the data size. According with the different values and store periodic time, the data transmission and real time performance are improved by use of bedded storage tactic. By way of marking operation point and intelligent setting of the frequency of data storing, proper sufficient data exits surely to analyze the operation performances of the units and the trend of each specificity operation point. The bottleneck at the limited database storing capacity is released with the help of the tactic.