Stability and active power sharing in droop controlled inverter interfaced microgrids: Effect of clock mismatches
| Autor: | Julian de Hoog, Ramachandra Rao Kolluri, Doreen A. Thomas, Tansu Alpcan, Iven Mareels, Marcus Brazil |
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| Rok vydání: | 2018 |
| Předmět: |
0209 industrial biotechnology
Steady state (electronics) Computer science 020208 electrical & electronic engineering 02 engineering and technology AC power Converters Stability (probability) 020901 industrial engineering & automation Control and Systems Engineering Control theory 0202 electrical engineering electronic engineering information engineering Inverter Voltage droop Microgrid Electrical and Electronic Engineering |
| Zdroj: | Automatica. 93:469-475 |
| ISSN: | 0005-1098 |
| DOI: | 10.1016/j.automatica.2018.03.025 |
| Popis: | Stability and power sharing properties of droop controlled inverter-based microgrid systems depend on various design factors. Little explored is the effect of component mismatches and parameters drifts on the stability, steady state behaviour and power sharing properties of these systems. In this paper, the behaviour of frequency droop controlled inverter based microgrid systems in the presence of non-identical clocks is analysed. It is shown that power sharing between converters in a microgrid can be sensitive to clock mismatches. Our proposal shows that a coordination control that uses sparse inter-node communications is useful in ensuring desired active power sharing. Conditions are derived to ensure stability in the presence of the proposed controller and simulation results are presented. |
| Databáze: | OpenAIRE |
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