Development of Dynamic Equivalents for MicroGrids using System Identification Theory

Resende, F. O.; Lopes, João

doi:10.1109/pct.2007.4538457

Cited by 33 publications

(26 citation statements)

References 8 publications

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“…The proposed model focuses on the representation of the dynamic behaviour of microgrids, where transients involved are generally faster and with larger damping, due to the small inertias of the rotating DG units and the resistive behaviour of the microgrids [5], [6], [14]- [16].…”

Section: A Black-box Modelling Fundamentalsmentioning

confidence: 99%

“…Dynamic equivalent models using grey- [14]- [16] and black-box [17]- [21] approaches can overcome the lack of detailed information of the DG unit parameters This paper is a postprint of a paper submitted to and accepted for publication in IET Generation, Transmission and Distribution, and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library, or http://dx.doi.org/10.1049/ietgtd.…”

Section: Introductionmentioning

confidence: 99%

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Black‐box dynamic equivalent model for microgrids using measurement data

Papadopoulos

Crolla

et al. 2014

IET Generation, Transmission & Distribution

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Section: A Black-box Modelling Fundamentalsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Black‐box dynamic equivalent model for microgrids using measurement data

Papadopoulos

Crolla

et al. 2014

IET Generation, Transmission & Distribution

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“…In [19] an equivalent model of a microgrid is studied for the dynamic analysis based on an optimization method. In [20] a grey-box and hybrid dynamic equivalent model is proposed for transient power system analysis, and the measurement data of point of common couple (PCC) are collected for the parameter identification.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Equivalent Modeling of a Grid-Tied Microgrid Based on Characteristic Model and Measurement Data

et al. 2017

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Abstract:Microgrids can significantly improve the utilization of distributed generation (DG) and the reliability of the power supply. However, in the grid-tied operational mode, the interaction between the microgrid and the distribution network cannot be ignored. The paper proposes an equivalent modeling method for the microgrid under grid-tied mode based on a characteristic model. It can simplify the microgrid model in the numerical simulation of the distribution network. The proposed equivalent model can present the dynamic response of a microgrid but not miss any of its primary characteristics. The characteristic model is represented by a low-order time-varying differential equation with the same characteristics of the original microgrid system. During the modeling process, the voltage and the power exchanged between the microgrid and distribution network are collected as the training data for the identification of model parameters. A recursive damped least squares algorithm (RDLS) is used for the parameter identification. A microgrid system containing different DGs is built to test the proposed modeling method in DIgSILENT, and the results show that the proposed dynamic equivalent modeling method is effective and the characteristic model can present the dynamic behaviors of the detailed model of a microgrid.

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“…Instead, it uses only measured input and output waveforms. Many recent research focuses on identification modeling and control for nonlinear systems [35][36][37]. One of the effective identification methods is block oriented nonlinear system identification.…”

Section: Introductionmentioning

confidence: 99%