煤炭工程 ›› 2014, Vol. 46 ›› Issue (3): 109-111.doi: 10.11799/ce201403034
• 研究探讨 • 上一篇 下一篇
仲飞1,邵如平2
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摘要：
提出了一种基于S变换的短时电能质量扰动检测方法，从S变换的结果、S复矩阵以及S模矩阵中提取所要的数据并用来对三相短路故障的电压暂降的幅值、相位跳变、持续时间和谐波含量进行分析。通过分析仿真的结果表明，该方法能够很好地实现对三相短路故障电压暂降的各特征量检测。
关键词: 电能质量, 短时扰动检测, 三相短路故障, 电压暂降, S变换
Abstract:
A method of short duration power quality disturbance based on S-transform has been proposed. The data which has been extracted from the result of the S-transform, the S-complex matrix as well as the S-mode matrix, are used to analysis the amplitude of the voltage of the three-phase short-circuit fault dips, the phase transition duration and harmonic content. By analyzing simulation results, this method shows a good detection quality of the characteristics of three-phase short-circuit fault voltage dips.
Key words: power quality, short-term disturbance detection, three-phase short-circuit fault, voltage sag, S transform
仲飞，邵如平. 基于S变换的三相短路故障电压暂降检测研究[J]. 煤炭工程, 2014, 46(3): 109-111.
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