Improvement of Grid Current Compensator in Distributed Generation System

P Govinda Raju, K Venkata Ramana

Abstract


This paper Proposed a new current control topology for grid-connected based distributed generation (DG), which helps the DG to exchange a sinusoidal current into the utility grid despite the distorted grid voltage and nonlinear local load conditions. The proposed current controller is outlined in the synchronous reference casing and made out of a Fuzy controller. Consequently, the control methodology can be incredibly rearranged effectively. What's more, the proposed control strategy does not require the nearby load current estimation or symphonious investigation of the framework voltage. In this manner, the proposed control technique can be effectively embraced into the conventional DG control framework without establishment of additional equipment. In spite of the lessened number of sensors, the framework current quality is altogether progressed. The operation standard of the proposed control technique is examined in detail, and its viability is approved through watching absolute symphonious bending (THD) and the results verified through MATLAB/SIMULINK environment.


References


Quoc-Nam Trinh, Hong-Hee Lee, “An Enhanced Grid Current Compensator for Grid-Connected Distributed Generation Under Nonlinear Loads and Grid Voltage Distortions,” IEEE TRANS.Ind.Electronics, vol. 61, no. 12, pp. 6528-6537, Dec. 2014.

R. C. Dugan and T. E. McDermott, “Distributed generation,” IEEE Ind.Appl. Mag., vol. 8, no. 2, pp. 19-25, Mar./Apr. 2002.

F. Blaabjerg, R. Teodorescu, M. Liserre, and A. V. Timbus, “Overviewof control and grid synchronization for distributed power generation systems,” IEEE Trans. Ind. Electron., vol. 53, no. 5, pp. 1398-1409,Oct. 2006.

J. A. Suul, K. Ljokelsoy, T. Midtsund, and T. Undeland, “Synchronous reference frame hysteresis current control for grid converter applications,” IEEE Trans. Ind. Appl., vol. 47, no. 5, pp. 2183-2194, Sep./Oct. 2011.

Q. Zeng and L. Chang, “An advanced SVPWM-based predictive current controller for three-phase inverters in distributed generation systems,” IEEE Trans. Ind. Electron., vol. 55, no. 3, pp. 1235-1246, Mar. 2008.

S. Buso and P. Mattavelli, “Digital control in power electronics,” in Syn thesis Lectures on Power Electronics. San Rafael, CA, USA: Morgan & Claypool, 2006.

C. A. Busada, S. Gomez Jorge, A. E. Leon, and J. A. Solsona, “Current controller based on reduced order generalized integrators for distributed generation systems,” IEEE Trans. Ind. Electron., vol. 59, no. 7, pp. 2898- 2909, Jul. 2012.

M. Liserre, R. Teodorescu, and F. Blaabjerg, “Multiple harmonics control for three-phase grid converter systems with the use of PI-RES current controller in a rotating frame,” IEEE Trans. Power Electron., vol. 21, no. 3, pp. 836-841, May 2006.

M. Castilla, J. Miret, A. Camacho, J. Matas, and L. G. de Vicuna, “Reduction of current harmonic distortion in three-phase grid-connected photo voltaic inverters via resonant current control,” IEEE Trans. Ind. Electron., vol. 60, no. 4, pp. 1464-1472, Apr. 2013.

R.-J. Wai, C.-Y. Lin, Y.-C. Huang, and Y.-R. Chang, “Design of high-performance stand-alone and grid-connected inverter for distributed generation applications,” IEEE Trans. Ind. Electron., vol. 60, no. 4,pp. 1542-1555, Apr. 2013.

I. J. Balaguer, Q. Lei, S. Yang, U. Supatti, and F. Z. Peng, “Control for grid-connected and intentional islanding operations of distributed power generation,” IEEE Trans. Ind. Electron., vol. 58, no. 1, pp. 147-157,Jan. 2011.

G. G. Pozzebon, A. F. Q. Goncalves, G. G. Pena, N. E. M. Mocambique, and R. Q. Machado, “Operation of a three-phase power converter connected to a distribution system,” IEEE Trans. Ind. Electron., vol. 60, no. 5, pp. 1810-1818, May 2013.

Q.-C. Zhong and T. Hornik, “Cascaded current-voltage control to improve the power quality for a grid-connected inverter with a local load,” IEEE Trans. Ind. Electron., vol. 60, no. 4, pp. 1344-1355, Apr. 2013.

Z. Yao and L. Xiao, “Control of single-phase grid-connected inverterswith nonlinear loads,” IEEE Trans. Ind. Electron., vol. 60, no. 4, pp. 1384-1389, Apr. 2013.

Z. Liu, J. Liu, and Y. Zhao, “A unified control strategy for three-phase inverter in distributed generation,” IEEE Trans. Power Electron., vol. 29,no. 3, pp. 1176-1191, Mar. 2014.

IEEE Application Guide for IEEE Std 1547, IEEE Standard for Interconnecting Distributed Resources with Electric Power Systems, IEEE Std.1547.2-2008, 2008.


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