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云数据中心(IDC)与高压变电站共站建设时,变电站的工频磁场会对共站址建设云数据中心的信息存储设备产生不良影响。为了确定云数据中心合理的工频磁场限值、确保云数据中心信息设备的电磁安全,比较分析了云数据中心工频磁场的测量结果、计算结果及公众全天工频磁场限值;并对根据工频磁场抗扰度严酷要求研制的用于云数据中心信息存储的服务器进行了工频磁场抗扰度测试。结果表明,当控制云数据中心与变电站强工频磁场源的距离>10 m时,通信云数据中心的稳定持续工频磁场抗扰度和短时工频磁场抗扰度的磁场强度分别取100A/m和1 000 A/m;此外,通过改善信息存储设备耐受工频磁场的特性,可以取消云数据中心建筑物的工频磁场屏蔽措施,节省巨额屏蔽费用。所研制的服务器能够耐受与变电站共站的云数据中心可能出现的最为严酷的工频磁场环境。
When the cloud data center (IDC) and high-voltage substation are stationed together, the power frequency magnetic field of the substation will adversely affect the information storage facilities in the cloud site of the co-site. In order to determine the reasonable power frequency magnetic field limit in the cloud data center and ensure the electromagnetic safety of the cloud data center information equipment, the measurement results of the power frequency magnetic field in the cloud data center, the calculation results and the public all-day power frequency magnetic field limit are compared. According to the stringent requirements of power frequency magnetic field immunity developed for the cloud data center server for information storage frequency magnetic field immunity test. The results show that when controlling the distance between the cloud data center and the strong power frequency magnetic field source of the substation> 10 m, the magnetic field strength of the stable continuous frequency magnetic field and short-time power frequency magnetic field in the communication cloud data center are taken as 100A / m and 1 000 A / m. In addition, by improving the characteristics of the information storage device to withstand the power frequency magnetic field, it can eliminate the power frequency magnetic field shielding measures of buildings in the cloud data center and save huge shielding costs. The developed server can withstand the most severe frequency magnetic field environment that may appear in the cloud data center that is stationed together with the substation.