Application and research of phase acquisition for catenary voltage in electronic-switching passing neutral section system

作者：Ran Wang^*; Zheng Trillion Q; Ma Haoyu; Li Xiong; Liu Bing

来源：Transactions of China Electrotechnical Society, 2013, 28(SUPPL.1): 231-236.

• Contact voltage
• Fourier
• Neutral sections
• System voltage
• Voltage tracking
• Weighted least squares
• Weighted least squares estimation
• Zero-crossing detection

In the electronic-switching passing neutral section system, the dead time of no power supply for locomotive is very short. The phase of contact voltage must be measured should be accuracy and fast. In this paper, several common voltage tracking algorithm are research. Simulation results show that the zero crossing detection and phase-locked loop are not suit for the electronic-switching passing neutral section system voltage phase detector, meanwhile weighted least squares method detect the voltage phase and frequency fast and accuracy, even when there are harmonics in the voltage wave. This algorithm is used in experiment, the voltage phase detection methods, and results verify the analysis is effective in this paper.

• 出版日期2013-5
• 单位北京交通大学