Journal of Applied Science and Engineering

Published by Tamkang University Press


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Yang Wang1This email address is being protected from spambots. You need JavaScript enabled to view it., Xianfeng Cheng2, and Trabert Andreas3

1Huainan Union University, Huainan, Anhui, 232038, China

2Suzhou Tongjin Precision Industry Joint-stock Co.,Ltd., Suzhou, Jiangsu , 215129 , China

3Trabert Andreas, Isel Germany AG, Dermbach, 36466, Germany



Received: March 1, 2023
Accepted: August 30, 2023
Publication Date: February 20, 2024

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

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This study with the aim of monitoring the solar cell output voltages, the battery, the capacitor bank and the DC busbar, and detecting possible faults in a well-timed mode, the optimal optimizer-controller for a small DC network separated from the network is developed through utilization of the State-Dependent Riccati Equation (SDRE) method. In the development of SDRE observer–controller, modeling the diverse operational dynamic behavior of the microgrid is carried out through a nonlinear model. Uncertainty in system parameters and measurement noise are not ignored in the evaluation of the studied microgrid. The capability of the applied method in distinguishing faults in a well-timed mode is confirmed through the outcomes of the simulations. To elaborate, the disturbance is not recognized as a fault which corroborates that, even in this condition, the progressive controller is efficient and resistant.


Keywords: Micro grid; State-Dependent Riccati Equation; Fault Detection; Observer; DC network

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