Conceptual Design of an Online Estimation System for Stigmergic Collaboration and Nodal Intelligence on Distributed DC Systems
| Autor: | DOORSAMY, W., CRONJE, W. |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Advances in Electrical and Computer Engineering, Vol 17, Iss 2, Pp 47-54 (2017) |
| Druh dokumentu: | article |
| ISSN: | 1582-7445 1844-7600 |
| DOI: | 10.4316/AECE.2017.02007 |
| Popis: | The secondary level control of stand-alone distributed energy systems requires accurate online state information for effective coordination of its components. State estimation is possible through several techniques depending on the system's architecture and control philosophy. A conceptual design of an online state estimation system to provide nodal autonomy on DC systems is presented. The proposed estimation system uses local measurements - at each node - to obtain an aggregation of the system's state required for nodal self-control without the need for external communication with other nodes or a central controller. The recursive least-squares technique is used in conjunction with stigmergic collaboration to implement the state estimation system. Numerical results are obtained using a Matlab/Simulink model and experimentally validated in a laboratory setting. Results indicate that the proposed system provides accurate estimation and fast updating during both quasi-static and transient states. |
| Databáze: | Directory of Open Access Journals |
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