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| The Operation Research and Analysis of Superconductor Power Equipment at Yunnan Puji Substation |
| Ren Anlin1, Tian Mi1, Zi Meirong2, Cui Jibin1 |
| 1. Beijing Innopower Superconductor Cable Co. Ltd Beijing 100176 2. Yunnan Power Grid Corporation Kunming Power Supply Bureau Kunming 650011 |
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Abstract The 35kV/121MVA superconductor cable and 35kV/90MVA superconductor fault current limiter at Yunnan Puji substation of southern china power grid have put into operation more than 8 years and 4 years respectively. A lot of operation data and experience have been accumulated. After several years operation and long-term monitoring, the main electric parameters of superconductor cable are the stable as the first, such as DC resistance, insulation etc. Except the individual parameter is not the same as the original design, the main thermal parameters have been working consistently, the cooling system is basically normal for a long time. The open cooling system is designed for the superconductor fault current limiter, and the operation parameters and liquid nitrogen consumption are the same as designed. Because the liquid nitrogen cooling system and demonstration stage, the reliability of prototype model of superconductor power equipment is lower. Maintenance experience proves that the reliability of cooling system and the optimization of the whole system are the main aspects to determine the reliability of the HTS power devices. Data of operation, test and maintenance of the two sets of HTS power equipment are reported and analyzed in this article. It will provide important reference for the research and application of HTS power equipment.
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Received: 06 July 2011
Published: 20 March 2014
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2012, Vol. 27 
