Research on the Control Strategy of Inverters in the Micro-Grid

This paper proposes an appropriate control systems aiming at the control demands of distributed generation (DG) unit in the micro-grid. When the micro-grid is connected to the main grid, PQ control with droop characteristic is adopted for the inverter; When micro-grid separates from the main grid, V...

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Bibliographic Details
Main Authors: BiYing Ren, XiangQian Tong, Sha Tian, XiangDong Sun
Format: Conference Proceeding
Language:English
Subjects:
Active filters
Control systems
Inverters
Low pass filters
Mesh generation
Power generation
Reactive power
Sun
Voltage control
Wind energy generation
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Description
Summary:This paper proposes an appropriate control systems aiming at the control demands of distributed generation (DG) unit in the micro-grid. When the micro-grid is connected to the main grid, PQ control with droop characteristic is adopted for the inverter; When micro-grid separates from the main grid, Vf control with droop characteristic is used. Also, the controller can make the conversion between different modes seamless. The grid-connected mode, islanding mode and transition from grid-connected to an islanding operation are simulation by PSIM software. The simulation results verify that the proposed control strategy is right and feasible.
ISSN:2157-4839
DOI:10.1109/APPEEC.2010.5448341