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中文摘要：
为了在线评估继电保护可靠性,提出一种基于时变失效率计算可靠性算法,根据影响继电保护系统可靠性因素进行建模,并建立以硬件数学模型、软件数学模型、人员失误模型及其他影响可靠性因素为对象的状态空间图,求解继电保护系统可靠性指标。最后,以一实际系统保护系统参数为例,进行了求解单套保护系统及双重化保护系统的可靠性指标计算,结果表明该算法能更精确实时地反应保护系统的可靠性性能指标,并为保护系统的检修决策提供参考依据。
英文摘要：
This paper proposed a new reliability algorithm based on time- varying failure for online evaluation on the reliability of relay protection. According to the factorsinfluencing the reliability of the relay protection system,this paper established the model,withthe state space diagram based on the mathematical model of hardware andsoftware,human error models and other factors influencing the reliability,and solved the reliability index of the relayprotection system. Finally,takingpractical system parameters astheexample,it calculated the reliability index of the single- setand the dual protection systems. The results demonstrate that the proposed algorithm can more accuratelyreflect the reliability performanceindex of protection system in real time,providing the references for the maintenance decision of protection system.
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A phase synchronization control scheme for LCL-T type high-frequency current source in parallel conn
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