耦合信息物理系统的虚拟电厂可靠性评估

Reliability Evaluation of Virtual Power Plants Coupled with Information Physical Systems

为分析信息系统和物理系统失效率对虚拟电厂可靠性的影响,提出耦合信息物理因素的虚拟电厂可靠性评估方法。首先分析了虚拟电厂的可靠性影响因素,再依据故障树分析方法建立了可靠性模型,并结合蒙特卡罗法提出了虚拟电厂的可靠性分析方法。最后算例表明,信息物理系统磨合完成后的虚拟电厂稳定性较高,各可靠性参数重要度一致;由物理系统失效引起的虚拟电厂失效次数较多。

To analyze the impact of information system and physical system failure rates on the reliability of virtual power plants,a reliability evaluation method for virtual power plants is proposed that coupling information and physical factors.Firstly,the factors affecting the reliability of virtual power plants were analyzed.Then,a reliability model was established using fault tree analysis method,and a reliability analysis method for virtual power plants was proposed using Monte Carlo method.The final example shows that the stability of the virtual power plant is relatively high after the information physical system has been run in;The importance of each reliability parameter is consistent,and there are more virtual power plant failures caused by physical system failures.