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Control Strategy For Intelligent Grid With Distributed Generation During Grid Connected And Islanding Mode

R. Lavanya*, S. Devi**

* M.E Student, Power System Engineering, K.S. Rangasamy College of Technology, India.

** Associate Professor, Department of Electrical and Electronics Engineering, K.S. Rangasamy College of Technology, India

Periodicity:February - April'2013
DOI : https://doi.org/10.26634/jps.1.1.2205

Abstract

For efficient operation of Distributed Generation (DG) is an essential aspect in future smart power grid. Distributed Generation is the interconnection of renewable sources that producing energy to the utility grid. A microgrid consists of both sources and loads. A microgrid can be operated in two modes. There are grid connected mode and islanded mode. A conventional controller (PI and PID) is proposed for the two modes of operation. During grid connected operation, all DG inverter system in the microgrid works in constant current control mode so as to supplies a constant power to the utility grid. When the system is detached from the main, all DG inverter system produces the power to the load and it should be switched to a voltage control mode because the voltage should not be regulated by utility. During this mode, the microgrid will supply a steady voltage to the local load. The smooth transition from grid connected to islanding mode and also reduce the transition time is the main objective of this work. The transition between grid connected and islanding modes performance when connected with and without controller is analyzed. A Phase locked loop (PLL) is used to determine the frequency and angle reference of the Point of Common Coupling (PCC). To assess the performance of the proposed control scheme MATLAB/SIMULINK tool is used.

Keywords

Current Controller, Grid Connected Mode, Islanding Mode, Voltage Controller

How to Cite this Article?

Lavanya, R., and Devi, S. (2013). Control Strategy For Intelligent Grid With Distributed Generation During Grid Connected And Islanding Mode. i-manager’s Journal on Power Systems Engineering, 1(1), 18-23. https://doi.org/10.26634/jps.1.1.2205

References

[1]. Blaabjerg, F., R. Teodorescu, Liserre, M., and Timbus A.V. (2006). “Overview of control and grid synchronization for distributed power generation systems”, IEEE Trans. Ind. Electron., Vol. 53, No. 5, pp. 1398–1409,Oct.

[2]. Fang Gao and Iravani. R, (2008). “A control strategy for a distributed generation unit in grid-connected and autonomous modes of operation”, IEEE Trans. Power Del., Vol. 23, No. 2, pp. 850–859, Apr.

[3]. Jayaweera. D, Galloway. S, Burt. G, and McDonald. J.R, (2007). “A sampling approach for intentional islanding of distributed generation”, IEEE Trans. Power Syst., Vol. 22, No. 2, pp. 514–521, May.

[4]. Irvin J. Balaguer, Qin Lei, Shuitao Yang, Uthane Supatti, (2011). Control for Grid-Connected and Intentional Islanding Operations of Distributed Power Generation, IEEE transactions on industrial electronics, Vol. 58, No. 1.

[5]. Kim.H, Yu. T, and Choi. S. (2008). “Indirect current control algorithm for utility interactive inverters in distributed generation systems”, IEEE Trans. Power Electron., Vol. 23, No. 3, pp. 1342–1347, May.

[6]. Manohar. K, Venu Gopala Rao. M, (2012). “Performance of Grid Connected DG Inverter System by Using Intelligent Controllers”, International Journal of Modern Engineering Research (IJMER), Vol.2, Issue.3, May-June, pp-1119-1124.

[7]. Twinning and D.G. Holmes, (2003). “Grid current regulation of a three phase voltage source inverter with an LCL input filter”, IEEE Trans. Power Electron., Vol. 18, No. 3, pp. 888–895, May.

[8]. Xi Fang, Satyajayant Misra, Guoliang Xue and Dejun Yang, (2011). “Smart Grid – The New and Improved Power Grid A Survey”, IEEE communications surveys & tutorials.

[9]. Yao. Z, Xiao. L, and Yan. Y, (2010). “Seamless transfer of single-phase grid interactive inverters between grid connected and stand-alone modes”, IEEE Trans. Power Electron., Vol. 25, No. 6, pp. 1597–1603, Jun.

[10]. Yasser Abdel-Rady I. Mohamed, (2011). “Mitigation of dynamic, unbalanced, and harmonic voltage disturbances using grid-connected inverters with LCL Filter”, IEEE transactions on industrial electronics, Vol. 58, No. 9, September.

[11]. Zhangjie, Wupeng, Hongjie, (2011). “Control strategy of microgrid inverter operation in grid-connected and grid-disconnected modes”, IEEE Trans. Power Electronics.,May.

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