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Paper title: EFFECTS OF ANGLE DROOP AND CONTROLLER TYPE IN HYBRID MICROGRID WITH LOAD UNCERTAINTY AND NONLINEARITY

Author(s): MOHAMMAD SAEED KOUPAEI NIYA, ABBAS KARGAR, SEYED YASER DERAKHSHANDEH,

Abstract:

The presented study proposes angle droop control strategy in hybrid microgrid with different types of loads. In this regard, angle droop control strategy is used for generating reference values and appropriate power sharing between distributed generation (DG) units. The proposed control strategy, utilizes current controller beside angle droop controller in discrete time domain to generate appropriate responses in transient conditions for converter base DG units. To improve the performance of control system in reference tracking and transient condition, proportional resonant (PR) controller are used in current controller scheme instead of proportional integral (PI) and the effects of proposed controller is tested on 33 bus IEEE test network. Also a LCL type filter is used to eliminate the harmonics which is produced by the converter. The performance of the proposed control strategy in islanded microgrid with distributed generation units of different types and different load condition is studied in the Digsilent Power factory software environment.

Keywords: Islanded operation, Angle droop, LCL filter, Hybrid generation, Proportional-resonant (PR) controller

Year: 2017 | Tome: 62 | Issue: 3 | Pp.: 233-239

Full text : PDF (759 KB)