ABSTRACT
In the literature [13] basic methods of online data integration are introduced. However, these methods cannot fully meet the requirements of the current online DSA System for following two reasons: Firstly, there are huge amounts of data under the background of trans-regional power grids. Therefore, the speed of online data integration is an important index to reflect its performance, then how to accomplish online data integration more quickly is an urgent problem. Secondly, with its developments in recent years, online DSA System has been transitioned from research to practical application and it can instruct production to a certain extent. But its analysis results, especially the data source, are widely doubted. Therefore, to improve the accuracy of online data integration and evaluate the credibility of data source are essential way to enhance the credibility of DSA analysis results.
