Abstract
This paper focuses on the islanded operation of microgrids. In this mode of operation, the microsources are required to cooperate autonomously to regulate the local grid voltage and frequency. Droop control is typically used to achieve this autonomous voltage and frequency regulation. However, droop control has real and reactive power sharing limitations when there are mismatches between the microsources. This paper analyses the effect due to mismatches in the power line impedances connecting the source inverters to the microgrid.
From the simulations results obtained, it was shown that the reactive power demand is unequally shared between the microsource inverters when there are mismatches between the power line impedances. To achieve equal reactive power sharing between the inverters, an external loop requiring low bandwidth
communications was implemented in a central controller.
Simulation results are presented showing the feasibility of the proposed solution in achieving reactive power sharing between the inverters connected to the microgrid.
From the simulations results obtained, it was shown that the reactive power demand is unequally shared between the microsource inverters when there are mismatches between the power line impedances. To achieve equal reactive power sharing between the inverters, an external loop requiring low bandwidth
communications was implemented in a central controller.
Simulation results are presented showing the feasibility of the proposed solution in achieving reactive power sharing between the inverters connected to the microgrid.
Original language | English |
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Title of host publication | Proceedings of the 21st IEEE International Symposium on Industrial Electronics (ISIE), 2012 |
Number of pages | 7 |
Publisher | IEEE |
Publication date | 2012 |
Pages | 1627-1633 |
ISBN (Print) | 978-1-4673-0159-6 |
ISBN (Electronic) | 978-1-4673-0157-2 |
DOIs | |
Publication status | Published - 2012 |
Event | 21st IEEE International Symposium on Industrial Electronics - , China Duration: 28 May 2012 → 31 May 2012 |
Conference
Conference | 21st IEEE International Symposium on Industrial Electronics |
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Country/Territory | China |
Period | 28/05/2012 → 31/05/2012 |
Series | Industrial Electronics (ISIE), IEEE International Symposium on |
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ISSN | 2163-5137 |