Frequency Control of an Isolated Micro-Grid Using Double Sliding Mode Controllers and Disturbance Observer
- 1 March 2018
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Smart Grid
- Vol. 9 (2), 923-930
- https://doi.org/10.1109/TSG.2016.2571439
Abstract
A novel frequency control method based on double sliding mode (SM) controllers is proposed for isolated micro-grids with renewable sources. In the presented technique, the SM pitch angle controller is designed for wind turbine generator (WTG) system to smooth wind power output. The SM load frequency controller (LFC) is constructed for diesel generator system to restore system frequency to normal through the secondary frequency regulation. Then the adaptive SM LFC is redesigned by taking advantage of the disturbance observer and adaptive law to improve dynamic performance of the diesel generator system. The proposed strategy is tested in a typical isolated hybrid micro-grid with both PV and WTG.Keywords
Funding Information
- National Natural Science Foundation of China (61403246)
- China Post-doctoral Science Foundation funded project (2014M560187)
- Innovation Program of Shanghai Municipal Education Commission (15ZZ085)
- Electrical Engineering Shanghai class II Plateau Discipline
- Shanghai Green Energy Grid Connected Technology Engineering Research Center (13DZ2251900)
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