Conceptual Design of an Online Estimation System for Stigmergic Collaboration and Nodal Intelligence on Distributed DC Systems
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 de...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Stefan cel Mare University of Suceava
2017-05-01
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| Series: | Advances in Electrical and Computer Engineering |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.4316/AECE.2017.02007 |
| Summary: | 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. |
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| ISSN: | 1582-7445 1844-7600 |