Author : N.S.Madhuri 1
Date of Publication :7th March 2017
Abstract: In transmission and distribution grids Voltage sags are one of the severe problems due to the high penetration of distributed generation (DG). The converter-interconnected DG system ex: solar, wind, fuel cells & mini hydal power plants, requires a fast and exact measurement of phase and frequency of fundamental grid current to produce reference current signals in order to control the converter. In case of voltage sags according to gird code the control of inverter is nothing but reactive power support. In-order to regulate the voltage in the non-faulty phases under unbalanced voltage sags is reactive current injection control by removing zero sequence from the current references. The results illustrate the capability of the developed GCPPP to ride- through the faults occurred on the grid side. The system is designed and simulated using MATLAB/ Simulink Software.
S. Chen, B. Mulgrew, and P. M. Grant, “A clustering technique for digital communications channel equalization using radial basis function networks,” IEEE Trans. on Neural Networks, vol. 4, pp. 570-578, July 1993.
F.Wang, J. Duarte, andM. Hendrix, “Design and analysis of active powercontrol strategies for distributed generation inverters under unbalancedgrid faults,” IET Gener., Trans. Distrib., vol. 4, no. 8, pp. 905–916, Aug.2010.
BDEW. (2008, Jun.). Technical guidelinegenerating plants connected to the medium-voltage network-guideline for generating plant connectionto and parallel operation with the medium-voltage network [Online]. Available: https://www.bdew.de
E. Troester, “New german grid codes for connecting PV systems to themedium voltage power grid,” in Proc. 2nd Int. Workshop ConcentratingPhotovoltaic Power Plants, Opt. Des., Prod. Grid Connection,Mar. 2009,pp. 1–4.
E. Troester, “New german grid codes for connecting PV systems to the medium voltage power grid,” in Proc. 2nd Int. Workshop Concentrating Photovoltaic Power Plants, Opt. Des., Prod. Grid Connection, Mar. 2009, pp. 1–4.