CAJ | 학술논문

暂态稳定分析多机等值时,受扰发电机的分群是需要解决的首要问题.文中用模糊聚类分析方法对受扰后的发电机进行分群研究,对模糊聚类方法的关键参数进行分析,引入F统计比率指标保证发电机分群数目的灵活性.通过New England 10机系统算例比较了相关理论法、三取二分群方法和模糊聚类法的分群效果,分析结果表明模糊聚类法在暂态稳定分析中对受扰发电机的分群有效、可靠.
잠태은정분석다궤등치시,수우발전궤적분군시수요해결적수요문제.문중용모호취류분석방법대수우후적발전궤진행분군연구,대모호취류방법적관건삼수진행분석,인입F통계비솔지표보증발전궤분군수목적령활성.통과New England 10궤계통산례비교료상관이론법、삼취이분군방법화모호취류법적분군효과,분석결과표명모호취류법재잠태은정분석중대수우발전궤적분군유효、가고.
For multi-machine equivalent in transient stability analysis, the grouping of the disturbed generators is the most important issue that needs to be solved. This paper investigates the clustering strategy for the disturbed generators by the fuzzy clustering method, analyzes the key parameters of this method and introduces the statistics ratio index F to ensure the flexibility of clustering number of disturbed generators. The standard New England 10-generator power system is used to test the effectiveness of the relevant method, the voting clustering method and the fuzzy clustering method. The test results illustrate that the fuzzy clustering method is self-adaptive and it is very effective as well as credible in clustering disturbed generators for power system transient stability analysis.