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我国跨省区电力资源优化配置越来越频繁,然而跨省区联网线路的重要功能之一,即安全功能却一直缺乏合理的费用分摊方法。首先基于输电冗余和潮流跟踪的原理,提出一种确定跨区、跨省联网工程输电成本中联网安全费用成本的方法;然后,提出一种事故紧急支援电力比例方法,来确定联网安全费用在受益各省级电网的分摊,即将各省级电网获得的最大事故紧急支援电力的比例作为安全费用分摊比例;最后,通过2个实际算例验证了该方法的合理性和实用性。
The optimal allocation of power resources across provinces and autonomous regions is more and more frequent. However, one of the important functions of inter-provincial interconnection lines, namely, the safety function, has always been a lack of reasonable cost-sharing methods. First, based on the principle of transmission redundancy and power flow tracking, a method to determine the cost of network security in transmission costs of trans-regional and inter-provincial interconnection projects is proposed. Then, an emergency ratio method of emergency support is proposed to determine the cost of network security Benefit from the apportionment of provincial power grids, that is, the ratio of the maximum emergency emergency power obtained from provincial power grids as the proportion of safety expenses. Finally, two practical examples are used to verify the rationality and practicability of the method.