【摘要】 智能电子设备(intelligent electronic device,IED)在配电网信息物理系统(cyber physical system,CPS)中具有连接信息层与物理层的重要作用，为了对配电网CPS进行有效的可靠性评估，在对一般元件采用马尔可夫两状态建模的基础上，提出一种考虑IED元件中检测和控制功能的串并联混合建模方法，同时综合考虑信息传输链路的连通性、时效性和准确性，以及系统受到网络攻击的可能性，分析系统发生故障或受到网络攻击后的过程及停电时间，采用序贯蒙特卡洛模拟法计算配电网CPS可靠性指标，以量化评估系统的可靠性。最后，通过对IEEE RBTS Bus 6配电系统的测试验证，对配电网CPS可靠性评估的有效性以及不同信息因素对系统可靠性的影响。更多还原

【Abstract】 Intelligent electronic devices(IED) play an important role in connecting the information layer and the physical layer in the cyber physical system(CPS) of the distribution network. In order to effectively evaluate the reliability of the CPS of the distribution network, based on the Markov two-state modeling of general components, a series-parallel hybrid modeling method considering the detection and control functions in IED components is proposed. And the connectivity, timeliness and accuracy of the information transmission link were comprehensively considered, as well as the possibility of the system being attacked by the cyber. The process and power outage time after the system failure were analyzed, and the CPS reliability index of the distribution network was calculated by using the sequential Monte Carlo simulation method to quantitatively evaluate the reliability of the system. Finally, the IEEE RBTS Bus 6 distribution system is tested to verify the effectiveness of CPS reliability evaluation and the influence of different information factors on system reliability.更多还原