A methodology for computing robust dynamic equivalents of large power systems

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• 作者：Jorge L. Jardim^a ; ^b ; ^{Jorge.jardim@hppa.com.br} ; Armando M. Leite da Silva^b
• 关键词：Coherent generators ; Dynamic equivalents ; Model aggregation ; Network reduction ; Transient stability
• 刊名：Electric Power Systems Research
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：143
• 期：Complete
• 页码：513-521
• 全文大小：1363 K
• 卷排序：143

文摘

A simple voltage sensitivity based ‘coherency’ classification and a medoid clustering method is presented. It is shown that sufficient accuracy can be achieved with tuned second order synchronous machine model for clustered generators. Issues related to network reduction are revisited and the related adopted methods are justified. The concept of buffer zone, used for network equivalents is extended to dynamic equivalents. Sensitivities indices to identifying such zone are presented. Overall, the paper presents a complete and relatively simple methodology for deriving dynamic equivalents for large power system models.