Audible Noise Performance of Conductor Bundles Based on Cage Test Results and Comparison with Long Term Data

Baoquan Wan, Wangling He, Chunming Pei, Xiaorui Wu, Yuchao Chen, Yemao Zhang and Lei Lan
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Baoquan Wan: State Key Laboratory of Power Grid Environmental Protection, China Electric Power Research Institute, Wuhan 430074, China
Wangling He: School of Electrical Engineering, Wuhan University, Wuhan 430072, China
Chunming Pei: Wuhan NARI Group Corporation, Wuhan 430074, China
Xiaorui Wu: State Key Laboratory of Power Grid Environmental Protection, China Electric Power Research Institute, Wuhan 430074, China
Yuchao Chen: State Grid Corporation of China, Beijing 100031, China
Yemao Zhang: State Key Laboratory of Power Grid Environmental Protection, China Electric Power Research Institute, Wuhan 430074, China
Lei Lan: School of Electrical Engineering, Wuhan University, Wuhan 430072, China

Energies, 2017, vol. 10, issue 7, 1-12

Abstract: A reasonable acoustic power formula is vital to precisely evaluate the audible noise (AN) level of ultra-high-voltage (UHV) AC power lines. This study derived a formula by taking several AN measurements under heavy rain conditions, using multiple conductor bundles in a UHV corona cage, and then subjecting these measured values to least squares fitting. The validity of the proposed formula was subsequently verified with statistical data obtained from two long-term stations at Henan and Hubei Province, which are located under the Jindongnan-Nanyang-Jingmen UHV AC transmission lines operating at 1000 kV. The deviation between the prediction and the long-term (L50) value was 0.76 dB for the Henan station and 0.17 dB for the Hubei station. It shows that the acoustic power formula derived in this paper is more accurate than the widely used Bonneville Power Administration formula, in which the corresponding deviations are much larger (3.07 and 2.53 dB).

Keywords: UHV AC power lines; corona performance; audible noise; acoustic power (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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