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New Control Algorithm for Capacitor Supported Dynamic Voltage Restorer

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DOI: 10.4236/jemaa.2011.37045    5,957 Downloads   12,032 Views   Citations

ABSTRACT

In this paper, a simple control algorithm for the dynamic voltage restorer (DVR) is proposed to mitigate the power quality problems in terminal voltage such as sag, swell, harmonics, unbalance etc. Two PI (proportional-integral) controllers are used each to regulate the dc bus voltage of DVR and the load terminal voltage respectively. The fundamental component of the terminal voltage is extracted using the synchronous reference frame theory. The control signal for the series connected DVR is obtained indirectly from the extracted reference load terminal voltage. The proposed DVR control strategy is validated through extensive simulation studies using MATLAB software with its Simulink and Sim-power system (SPS) block set tool boxes.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

B. Singh, P. Jayaprakash, D. Kothari, A. Chandra and K. Al-Haddad, "New Control Algorithm for Capacitor Supported Dynamic Voltage Restorer," Journal of Electromagnetic Analysis and Applications, Vol. 3 No. 7, 2011, pp. 277-286. doi: 10.4236/jemaa.2011.37045.

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