Microgrid Stability Control Strategy Based on Converter with Energy Storage Devices

Aidong XU; Tao HUANG; Wenxiao WEI; Xiaobin GUO; Jinyong LEI; Shaoxiong ZHOU; Ping YANG

doi:10.13648/j.cnki.issn1674-0629.2015.04.005

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South Power Sys Technol ›› 2015, Vol. 9 ›› Issue (4) : 29-34. DOI: 10.13648/j.cnki.issn1674-0629.2015.04.005

New Energy & Microgrid

Microgrid Stability Control Strategy Based on Converter with Energy Storage Devices

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Abstract

Microgrid system is a small power system made up of distributed generations, energy storage devices, converters, loads and monitoring and protecting devices. According to the diversity of distributed generation and the complexity of microgrid system operation mode, a stability control strategy combining droop control and V-f control for microgrid system based on converter of energy storage devices is presented. When microgrid system is in grid-connected mode, droop control is used for converter of energy storage devices. When microgrid system is in islanded mode, if voltage and frequency are beyond the variation range of stability control strategy, V-f control is used for converter of energy storage devices to ensure the voltage and frequency stability of microgrid. Simulation results demonstrate the effectiveness of the stability control strategy for grid-connected mode, islanded mode and the transfer process between the two modes.

Key words

microgrid / energy storage devices / converter / droop control / V-f control / stability control

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Aidong XU , Tao HUANG , Wenxiao WEI , et al . Microgrid Stability Control Strategy Based on Converter with Energy Storage Devices[J]. Southern Power System Technology. 2015, 9(4): 29-34 https://doi.org/10.13648/j.cnki.issn1674-0629.2015.04.005

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