Sheetal Chandak, Pritam Bhowmik, Pravat Kumar Rout. Load shedding strategy coordinated withstorage device and D-STATCOM to enhancethe microgrid stability[J]. Protection and Control of Modern Power Systems, 2019, 4(3): 1-19.
DOI:
Sheetal Chandak, Pritam Bhowmik, Pravat Kumar Rout. Load shedding strategy coordinated withstorage device and D-STATCOM to enhancethe microgrid stability[J]. Protection and Control of Modern Power Systems, 2019, 4(3): 1-19.DOI: 10.1186/s41601-019-0138-0.
Load shedding strategy coordinated withstorage device and D-STATCOM to enhancethe microgrid stability
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.
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.
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