کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5001256 1460870 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A methodology for computing robust dynamic equivalents of large power systems
ترجمه فارسی عنوان
یک روش برای محاسبه معادلات پویای قوی سیستم های بزرگ برق
کلمات کلیدی
ژنراتورهای منسجم، معادل پویا، تجمع مدل، کاهش شبکه، ثبات گذرا،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی


- 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.

This paper presents a simple and computationally efficient methodology for computing robust dynamic equivalents. While simple to implement, the methodology involves many factors, and these are discussed, explained and justified throughout the paper. It classifies clusters of generators to be equivalenced by their electrical distances, and identifies second order reduced models for them. It maps them into classical synchronous machine models and aggregates them. Reduction of the network is based on the Ward PV method. The quality of the dynamic equivalent, in terms of flexibility and reduced dependence on disturbances, is automatically verified by performance indices. The methodology can easily be embedded in time domain simulation packages. Two large real power system networks are used for testing the performance of the approach.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electric Power Systems Research - Volume 143, February 2017, Pages 513-521
نویسندگان
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