Abstract
This paper presents a secondary voltage control scheme for microgrids based on the port-Hamiltonian modeling framework. The proposed secondary controller compensates the deviations of voltage amplitudes from their nominal values using the concept of energy shaping, which is the essence of passivity-based control in port-Hamiltonian systems. We shape the energy function and define a new Hamiltonian function such that the new potential energy function has a strict local minimum at the desired equilibrium point. Next, a feedback control is designed such that the closed-loop system preserves the port-Hamiltonian structure. The Hamiltonian in this case is the sum of the plant and the controllers energy functions. The stability analysis is performed and sufficient conditions on the controller gains to achieve voltage regulation are derived. The effectiveness of the proposed control methodology is evaluated using simulation for a benchmark microgrid system
Original language | English |
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Title of host publication | 2017 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe) |
Place of Publication | Piscataway |
Publisher | IEEE |
Pages | 1-6 |
Number of pages | 6 |
ISBN (Electronic) | 978-1-5386-1953-7 |
ISBN (Print) | 978-1-5386-1954-4 |
DOIs | |
Publication status | Published - 2017 |
Event | 2017 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe) - Politecnico di Torino, Torino, Italy Duration: 26 Sept 2017 → 29 Sept 2017 |
Conference
Conference | 2017 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe) |
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Abbreviated title | IEEE PES ISGT Europe 2017 |
Country/Territory | Italy |
City | Torino |
Period | 26/09/17 → 29/09/17 |
Keywords
- Terms–Microgrids
- Port-Hamiltonian Representation
- Stability
- Voltage Regulation