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讨论了电力系统后紧急控制中关于信息容错性和信道容错性的关键问题。由于后紧急控制是基于多代理系统的信息控制,文中首先基于传统的信息理论,建立了广义的电力系统多代理信息模型,通过“信息群发和转发”将多代理系统自治、智能、交互的特点和信息学理论相融合,以实现后紧急控制系统容错功能,通过信息量损失最小决策原理对信息辨识决策以满足信息容错的要求；同时通过各个代理之间的交互协议内容的定制和解析以满足信道容错的要求。最后通过实例应用和仿真,验证了后紧急控制多代理系统中容错性方法的有效性和可行性。
The key issues about information fault tolerance and channel fault tolerance in emergency control of power system are discussed. Because the post-emergent control is based on the information control of multi-agent systems, a generalized multi-agent information model of power system is established based on traditional information theory. The multi-agent system is autonomous, intelligent and interactive through “group sending and forwarding” And information theory to achieve post-emergency control system fault-tolerant function, through the loss of information loss decision principle for information identification decision-making to meet the requirements of information fault tolerance; at the same time through the interaction between the various agents of the content of the agreement to resolve and customize to meet Channel fault tolerance requirements. Finally, through examples and simulations, the validity and feasibility of the fault-tolerant approach in post-emergency control multi-agent systems are verified.