A method of minimum-cutset and network-equivalent is introduced to obtain a better result of the reliability evaluation of complex distribution system. The reliability network equivalent method is used to reduce the complex distribution system,and the minimum cutset method is used to enhance the precision and speed of the reliability calculating. The proposed method overcomes the deficiency of the original method such as maintenance and the second--order faults can not be calculated. The results of the RBTS system by using this method examine the validity.%为提高复杂配电系统可靠性评估的准确性,提出一种最小割集-网络等值法,通过网络的可靠性等值简化复杂配电系统的求解过程,利用最小割集法提高可靠性计算的精度和速度,克服了传统的可靠性网络等值法没有考虑计划检修、不能计算二阶故障以及传统的最小割集法不适用于复杂配电系统等的一些不足.对RBTS可靠性测试系统进行计算的结果表明,所提方法能更真实地反映配电系统可靠性的实际状况.
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