Advanced Railway Power Quality Detecting Algorithm Using a Combined TEO and STFT Method

作者：Yoo Je Ho; Shin Seung Kwon; Park Jong young; Cho Soo Hwan^*

来源：Journal of Electrical Engineering and Technology, 2015, 10(6): 2442-2447.

DOI：10.5370/JEET.2015.10.6.2442

• Railway system
• Power Quality(PQ)
• Detection
• Teager Energy Operator(TEO)
• Short-Time Fourier Transform(STFT)

Because an electric railway vehicle is a large scale moving load, it can cause various kinds of power quality problems in the railroad power system. The power quality impacts are considered as the strong instantaneous stresses to the related power systems and can cause an accelerating aging and a malfunction of the power supplying components. Therefore, it is necessary to detect the small and intermittent symptoms mixed in the voltage waveform. However, they cannot be detected by the triggering functions of the existing power analyzers installed in the railway systems. This paper will examine the drawback of some fast detection tools and propose an advanced detecting and analyzing method based on a combined TEO and STFT algorithm.

• 出版日期2015-11