Control of inverter-connected sources in autonomous microgrids
- 1 June 2008
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 07431619,p. 586-590
- https://doi.org/10.1109/acc.2008.4586555
Abstract
The use of distributed generation is growing steadily, motivating a need for flexible interconnection strategies. The resulting microgrid concept allows sub-networks of sources and loads to maintain reliable operation when disconnected from the main grid. The paper presents a control strategy for inverter-based sources that supports transitioning between grid connection and autonomous operation. The controller regulates the inverter terminal voltage and the active power delivered to the AC system, and takes into account the phase-locked loop (PLL) dynamics. An example, in which two SOFC plants provide power to a microgrid, explores controller behaviour. The investigation considers disconnection from the main grid, autonomous operation, and re-synchronization with the main grid.Keywords
This publication has 8 references indexed in Scilit:
- A Voltage and Frequency Droop Control Method for Parallel InvertersIEEE Transactions on Power Electronics, 2007
- MicrogridsIEEE Power and Energy Magazine, 2007
- Control of inverter-based micro-gridsElectric Power Systems Research, 2007
- Wireless-Control Strategy for Parallel Operation of Distributed-Generation InvertersIEEE Transactions on Industrial Electronics, 2006
- Defining Control Strategies for MicroGrids Islanded OperationIEEE Transactions on Power Systems, 2006
- Phase-locked loops: a control centric tutorialPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Fuel Cell Systems ExplainedPublished by Wiley ,2003
- Transient algebraic circuits for power system dynamic modellingInternational Journal of Electrical Power & Energy Systems, 1993