中国与美国发电机组可靠性指标对比分析

Comparative Analysis on Reliability Index of Chinese and American Generators

不同国家在发电机组的可靠性指标及统计数据分析方面存在一定的差异,这对发电机组可靠性技术交流造成障碍。基于此,首先从中、美两国发电机组可靠性术语定义和指标计算公式两方面比较两国发电机组的可靠性评价方法;再从运行系数、等效可用系数、等效强迫停运率以及非计划停运次数等方面对两国各类型机组在2006—2010年的可靠性指标数据进行对比,分析两国发电机组可靠性管理和统计数据存在差异的根本原因。通过差异原因分析,促进我国电源侧规划建设和电网运行管理水平。

There are differences in reliability index and statistics data analysis of generating units in different countries, whichbrings difficulties to reliability index exchange. Therefore, the paper compares reliability evaluation method in China with that in U. S. in terms of definition of reliability and index calculation formula; besides, it compares reliability index data inChina with that in U. S. from 2006 to 2010 in terms of operating factor, equivalent available factor, forced outage rate and unplanned outage times to analyze fundamental reasons of difference in reliability management and statistics data of generators in the two countries. By analyzing the causes for the differences, planning construction and operational management at power side is promoted in China.