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Recently State Grid Corporation has issued the Implementing Rules of Reliability Evaluation of Transmission System (IRRETS), in which the loop is firstly introduced into the reliability evaluation. Accordingly the reliability evaluation of the distribution grid can be based on loop-outage model instead of the basic elements. The evaluation can be made through three levels: element-loop-system. In...
With rapid development of economy in Hainan, the environmental issue has become more and more a focus of attention. On the basis of current research achievements on carrying capacity, first of all, this article established a model of carrying capacity taking into consideration of island environmental factors. Then, with the method of this model, this article made an empirical analysis on the environmental...
For complex mechanical equipment containing N units the optimal model to preventive maintenance cycle policy is proposed to minimize the maintenance cost rate, the model is subject to the availability and the reliability. And optimal variable is preventive maintenance cycle. The recursion relationship of failure rate before and after imperfect preventive maintenance was built up concerning with the...
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