| Abstract: |
| Recently microgrids have drawn a potential attraction by fulfilling the environmental demands and the increasing energy
demands of the end-users. It is necessary to focus on various protection and control aspects of a microgrid. During the
transition between the grid-following and grid-forming modes, the voltage and the frequency instability due to the
power mismatch condition becomes the major point of concern. Therefore, the paper executes a frequency-active power
and voltage-reactive power drooping control strategy for the precise power-sharing among the distributed power
generators. Furthermore, to handle the power deficit scenarios and to maintain the system stability, a system
independent and priority-based adaptive three-stage load shedding strategy is proposed. The sensitivity of the strategy
depends on the system inertia and is computed according to the varying absolute rate-of-change-of-frequency. The
strategy incorporates the operation of battery storage system and distributed static compensator (D-STATCOM) in the
microgrid, to provide a reliable power supply to the customers for a considerable time instead of a sudden load
shedding. The effectiveness of the proposed strategies is investigated on a scaled-down modified IEEE 13-bus microgrid
system on the podium of MATLAB 2015b through the time-domain simulation. |
| Key words: Microgrid, Power-sharing, Load shedding, High inertia distributed generators, Inertia-less distributedgenerators, Battery storage system, D-STATCOM |
| DOI：10.1186/s41601-019-0138-0 |
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| Fund: |
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