Status evaluation of smart substation measurement and control device

[摘要] In power system, measurement and control device plays an important role in maintaining an ideal level of reliability. Therefore, the reliability of the measurement and control device should be evaluated to fully understand the cause of its failure. A new evaluation model is proposed, which relates the fault of measurement and control system with the four main reasons of device hardware fault, software fault, auxiliary equipment fault and human fault. In addition, the model can also comprehensively consider other aspects of the measurement and control system, such as human error in testing and software upgrade, effectiveness of daily operation monitoring, degree of dependence on self-inspection, local backup and misoperation. These studies have a lot of significance to the reliability of the control system, and also can effectively improve the stability of the system.

[发布机构] NARI Group Corporation, State Grid Electric Power Research Institute, Nanjing, China^1;State Key Laboratory of Smart Grid Protection and Control, Nanjing, China^2;NARI Technology Corporation Co. Ltd, Nanjing, China^3

[效力级别] 计算机科学

[关键词] Evaluation modeling;Measurement and control;Measurement and control systems;Operation monitoring;Self-inspection;Smart substations;Software upgrades;Status evaluations