The amounts of fault signal records are increasing rapidly with the elevation of fault monitoring level, which leads to troubles for data transmission and storage, therefore the research of data compression is paid more and more attention.

• 摘要随着对电力系统故障过程监控水平要求的逐步提高，急剧增大的故障录波器数据量给数据传输和储存带来了很大的困难，因此数据压缩也越来越受到人们的关注。