论文部分内容阅读
云数据中心(IDC)与高压变电站共站建设时,变电站正常工作时的稳态持续工频磁场和短路时的短时工频磁场可能会威胁共站建设云数据中心的信息存储设备的安全运行。为此,通过分析测量结果及国内外数据,系统总结了高压变电站产生的工频磁场环境的特征,提出了不同电压等级变电站母线、地下变电站、地下电缆、电抗器及电容器产生的稳态持续工频磁场强度最大值分别为64 A/m、45 A/m、49 A/m、4 000 A/m、800 A/m,通过计算分析了变电站工频短路时50 k A短路电流在附近产生的短时工频磁场强度最大值可达2 490 A/m。研究结果表明:在云数据中心建设时,需要控制云数据中心信息设备与电抗器的距离>10 m,与电容器的距离>5 m,以确保云数据中心信息设备承受的稳态持续工频磁场强度<100 A/m;控制云数据中心信息设备与高压母线的距离>10 m,可将与变电站共站建设的云数据中心可能出现的短时工频磁场强度降低到<1 000 A/m。该研究结果为制定云数据中心与高压变电站共站建设时的工频磁场防护策略奠定了基础。
During the construction of IDC and high-voltage substations, the steady-state continuous frequency magnetic field during normal operation and the short-time power frequency magnetic field when short-circuited may threaten the safe operation of the information storage facilities in the co-located cloud data center . Therefore, by analyzing the measurement results and data at home and abroad, the characteristics of power frequency magnetic field environment generated by high voltage substations are summarized and the steady state sustaining power generated by substations, underground substations, underground cables, reactors and capacitors at different voltage levels is proposed The maximum values of frequency magnetic field are 64 A / m, 45 A / m, 49 A / m, 4 000 A / m and 800 A / m respectively. The short circuit current of 50 kA Short-term power frequency magnetic field strength up to 2 490 A / m. The results show that when the cloud data center is constructed, it is necessary to control the distance between the cloud data center information equipment and the reactor> 10 m and the distance between the capacitor and the capacitor to be> 5 m, so as to ensure the steady-state continuous power frequency magnetic field sustained by the cloud data center information equipment Intensity <100 A / m; controlling the distance between cloud data center information equipment and HV bus bar> 10 m, the short-time power frequency magnetic field intensity that may occur in the cloud data center constructed together with the substation can be reduced to <1 000 A / m . The results of this study laid the foundation for the formulation of power frequency magnetic field protection strategy for co-site construction of cloud data centers and high voltage substations.