| PMU数据预处理及压缩算法 |
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| 引用本文： | 胡丽丽,牛胜锁,梁志瑞.PMU数据预处理及压缩算法[J].电测与仪表,2015,52(14). |
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| 作者姓名： | 胡丽丽 牛胜锁 梁志瑞 |
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| 作者单位： | 华北电力大学 农业电气化与自动化,华北电力大学 农业电气化与自动化,华北电力大学农业电气化与自动化 |
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| 摘 要： | 随着广域测量系统在电力系统越来越广泛的应用,大量PMU实测数据产生,为了高效的对数据进行传输、存储和应用,通过深入研究PMU数据的特点,利用波形相差法和坐标递减法对数据进行预处理,在处理基础上,利用改进的递归Huffman算法进行压缩。通过预处理和对解压缩算法的改进,提高压缩率,缩短了解压缩时间。
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| 关 键 词： | 广域测量系统WAMS PMU数据 Huffman算法 数据预处理 |
| 收稿时间： | 2014/6/5 0:00:00 |
| 修稿时间： | 2014/6/5 0:00:00 |
PMU Data Preprocessing and Compression Algorithm |
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| HU Li-li,NIU Sheng-suo and LIANG Zhi-rui.PMU Data Preprocessing and Compression Algorithm[J].Electrical Measurement & Instrumentation,2015,52(14). |
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| Authors: | HU Li-li NIU Sheng-suo and LIANG Zhi-rui |
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| Affiliation: | North China Electric Power University,Department of Agricultural Electrification and Automation,North China Electric Power University,Department of Agricultural Electrification and Automation,North China Electric Power University,Department of Agricultural Electrification and Automation |
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| Abstract: | With the wide-area measurement WAMS applications, a large number of PMU measured data was generated. In order to analyze, transmit and apply the data efficiently, this paper uses the waveform difference and the diminishing coordinates to process, than uses the recursion Huffman to compress. By pre-processing and improving compression algorithms, it optimizes the algorithm, improves the compression ratio and shortens compression time. |
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| Keywords: | WAMS PMU data Huffman algorithm data pre-processing |
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