With the wide application and technical progress of fault recording and travelling wave devices
the IEEE COMTRADE 1999 is apparently going massive. How to rapidly retrieve and analyze massive COMTRADE data has become a problem demanding prompt solution. An index framework based on word-aligned hybrid (WAH) bitmap for massive COMTRADE data and capable of solving the traditional indexing defect latency and delayed response is built. By introducing the two phase commit protocol (2PC)
the consistence between index and metadata
metadata and data is ensured. The test is done between bitmap based on WAH and MySQL
and the results show that the bitmap index based on WAH is more effective than MySQL’s
especially for multi-dimensional
multi-condition and floating-point COMTRADE data indexing. This index framework meets the need of COMTRADE data as well as those other big data of power industry. This work is supported by National Natural Science Foundation of China (No. U1202233