Audible noise sensing method for HVDC Transmission lines based on corona current detection
- Resource Type
- Conference
- Authors
- Liu, Yuanqing; Sun, Qihao; Fang, Xiaoqiang; Liu, Yingyi; Lin, Menghao; Ding, Yang
- Source
- 2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Electrical and Energy Conference (CIEEC), 2023 IEEE 6th International. :4212-4215 May, 2023
- Subject
- Engineered Materials, Dielectrics and Plasmas
Power, Energy and Industry Applications
Correlation
Power supplies
Acoustic noise
Current measurement
Working environment noise
Wires
Conductors
Corona
Corona Current
Audible Noise
Spectrum
Direct Current
- Language
Audible noise is an important factor that must be considered in the design of high volt direct current lines, but the outdoor audible noise test is vulnerable to environmental noise interference. This paper starts with the relationship between the wire power supply current and the audible noise to study the audible noise. Through the experimental study of corona current and audible noise of 6 * 1250mm 2 true split conductor in the corona cage, this paper obtains that the corona current and audible noise have similar characteristics of the CPB spectrum. Through the comparison of the results of converting the CPB spectrum to A sound level, it is found that the conversion law of audible noise can be obtained from the measured data of corona current. The research results of this paper can lay a foundation for further searching for the intrinsic correlation between corona current and audible noise.