摘要详情
773 / 2022-03-31 21:44:03
Development of a Stray Current Testing Device Based on Harmonic Current Source Technology
Stray Current Source,DC bias,Harmonic Current Source,Laboratory test
终稿
Purpose/Aim
With the rapid development of rail transit, the risk of DC bias caused by stray current has attracted the attention of researchers. Therefore, it is necessary to carry out relevant tests in the laboratory. The core equipment is the stray current testing device, which needs to been developed.
Experimental/Modeling methods
Based on the harmonic current source technology, a stray current testing device has been proposed. After the three-phase power frequency alternating current is input, two groups of three-phase power supplies are generated through the phase-shifting transformer to supply power to the power units 1 and 2 respectively. The power units are connected in series after being rectified and inverted by an H bridge to realize 5-level output, and the 5-level output is output after passing through an LCL filter.
Results/discussion
When the equipment operates in the constant voltage control mode, the voltage command can be given by the analog quantity or internally generated (DC/multi-band sine wave, etc.), and the output voltage and capacitor current are controlled by double loops. When the equipment operates in the constant current mode, the current command can be given by the analog quantity or internally generated, and the output current is controlled by closed-loop.
Conclusions
In this paper, a stray current testing device based on harmonic current source technology has been proposed. It can reappear the stray current waveform measured on site and serve the transformer DC magnetic bias test.
With the rapid development of rail transit, the risk of DC bias caused by stray current has attracted the attention of researchers. Therefore, it is necessary to carry out relevant tests in the laboratory. The core equipment is the stray current testing device, which needs to been developed.
Experimental/Modeling methods
Based on the harmonic current source technology, a stray current testing device has been proposed. After the three-phase power frequency alternating current is input, two groups of three-phase power supplies are generated through the phase-shifting transformer to supply power to the power units 1 and 2 respectively. The power units are connected in series after being rectified and inverted by an H bridge to realize 5-level output, and the 5-level output is output after passing through an LCL filter.
Results/discussion
When the equipment operates in the constant voltage control mode, the voltage command can be given by the analog quantity or internally generated (DC/multi-band sine wave, etc.), and the output voltage and capacitor current are controlled by double loops. When the equipment operates in the constant current mode, the current command can be given by the analog quantity or internally generated, and the output current is controlled by closed-loop.
Conclusions
In this paper, a stray current testing device based on harmonic current source technology has been proposed. It can reappear the stray current waveform measured on site and serve the transformer DC magnetic bias test.
重要日期
-
会议日期
09月25日
2022
至09月29日
2022
-
08月15日 2022
提前注册日期
-
09月10日 2022
报告提交截止日期
-
11月10日 2022
注册截止日期
-
11月30日 2022
初稿截稿日期
-
11月30日 2022
终稿截稿日期
主办单位
IEEE DEIS
承办单位
Chongqing University
联系方式
- Zhengyong Huang
- 61******@qq.com
历届会议
-
2020年09月06日 中国 Beijing
2020 IEEE International Conference on High Voltage Engineering and Application -
2018年09月10日 希腊
2018 IEEE International Conference on High Voltage Engineering and Application -
2016年09月19日 中国 Chengdu, China
2016 IEEE International Conference on High Voltage Engineering and Application
