کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
710757 892117 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Subspace closed loop identification using the integration of MOESP and N4SID methods
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Subspace closed loop identification using the integration of MOESP and N4SID methods
چکیده انگلیسی

AbstractLinear identification of time invariant systems operating in closed loop is of special interest for a large number of engineering applications. There are different techniques and methods to carry out this type of identification. For example, modifying the N4SID method, one can derive a closed loop subspace identification method. The same can be done using the MOESP method. Based on them, the MON4SID method is introduced, which estimates the extended observability matrix and the state sequence directly from a LQ decomposition, using a combination of the techniques contained in both, MOESP and N4SID. This new method uses an algorithm to identify state space model of a plant in a closed loop system, in the same way as in MOESP method. The advantage of the proposed algorithm is that it does not require any knowledge about the controller, whereas such information is essential for other methods (e.g. N4SID). The disadvantage of this algorithm is that it needs a great amount of data to obtain better estimates. A simulated process to show the performance of this algorithm is presented.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: IFAC Proceedings Volumes - Volume 42, Issue 11, 2009, Pages 476–481
نویسندگان
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