Power quality improvement of grid connected doubly fed induction generator using STATCOM and BESS

Ghorbanian, Maedeh; Goodarzvand, F.; Poudaryaei, A.; Mahadi, Wan Nor Liza Binti Wan

doi:10.1109/ice2t.2014.7006229

Cited by 6 publications

(1 citation statement)

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“…A subset of this group assesses various BESS/ STATCOM schemes. This scheme is assessed by Yang et al [30] for voltage regulation enhancement, by Ghorbanian et al [31] for reducing the severity of voltage sags in a network with a DFIG, by Liu et al [32] to alleviate the angle stability and ease voltage drop in a weak grid. Kanchanaharuthai et al evaluate the ability of the scheme to enhance voltage regulation [33] in a large-scale multimachine power system with synchronous generators and DFIGs.…”

Section: Introductionmentioning

confidence: 99%

Impact of Battery Energy Storage System and its Converter Characteristics on Voltage Sags

Mbuli¹,

Lichaba²,

Xezile³

et al. 2020

Preprint

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Voltage sags can cause the interruption of power supply and can negatively affect operations of customers. In this paper, the authors study the impact of battery energy storage systems (BESS) on voltage sags. A stochastic method of fault positions is used. Faults of various types are simulated and voltages are recorded. Firstly, with the BESS integrated into the network, there are higher residual voltages, fewer voltage sags and less expected critical voltage loss. Secondly, if the BESS converter power factor is reduced, recorded residual voltages are higher, voltage sags are fewer, and the number of expected critical voltage sags is lower. Finally, when three BESS converter control modes, namely constant voltage, constant power factor, and constant reactive power, were assessed, results showed similar voltage sag performances for constant power factor and constant reactive power modes. Furthermore, operating in constant voltage control outperformed the other two modes as it resulted in higher residual voltages, a lower number of voltage sags, and fewer expected critical voltage sags. The paper has demonstrated that the BESS can improve voltage sag performance. In addition, the power factor of the BESS converter and the mode of operation of the converter can influence the magnitude of the voltage sag performance improvement.

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