iosr-JEEE   International Conference on Emerging Trend in Engineering and Management Research (ICETEMR-2016)

Abstract: Harmonic reduction is becoming an important for electricity consumers. This increases the need for harmonics reduction techniques. The main objective of this paper is to survey the various recently used technologies and filters for reducing harmonics. Also this paper presents a review on various topologies, power converters and control schemes used with the operation of the DFIG.

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Abstract: This paper presents a new multilevel h- bridge-type dynamic voltage restorer (MHBDVR) with fault harmonic elimination. This topology can operate in two operational modes: 1) compensation mode for voltage fluctuations and unbalances, and 2) short- circuit current limiting mode. The harmonic eliminating function of the MHBDVR is performed by injecting third order harmonics during the short- circuit fault...........
Keywords: Dynamic voltage restorer (DVR), multilevel inverters, fault current limiter, voltage restoration

[1]. C.-S. Lam, M-C. Wong, and Y.-D. Han, "Voltage swell and overvoltage compensation with unidirectional power flow controlled dynamic voltage restorer," IEEE Trans. Power Del., vol. 23, no. 4, pp. 2513-2521, Oct.2008.
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Abstract: This paper addresses the control requirements of hybrid wind farms comprising a relatively the Permanent Magnet Synchronous Generator (PMSG), capable of compensating the reactive power demanded by the IMs during faulty conditions as well as attenuating the active power variations due to wind velocity. Based on the superposition theorem and the feedback linearization technique, a controller is designed to independently regulate the positive and negative sequence currents of the PMSG voltage source converters (VSC), overcoming several drawbacks of existing approaches in the presence of unbalanced voltages........
Keywords- Static Synchronous Compensator (STATCOM), Permanent Magnet Synchronous Generator (PMSG), Fundamental Frequency Modulation (FFM

[1]. E.Ribeiro, A. J. M. Cardoso, and C.Boccaletti, "Fault-tolerant strategy for a photovoltaic DC–DC converter," IEEE Trans. Power Electron., vol. 28, no. 6, pp. 3008–3018, Jun. 2013.
[2]. H.Wu and X. He, "Single phase three-level power factor correction circuit with passive lossless snubber," IEEE Trans. Power Electron., vol. 17, no. 6, pp. 946–953, Nov. 2002.
[3]. J. M. Kwon, B. H. Kwon, and K. H. Nam, "Three-Phase photovoltaic system with three-level boosting MPPT control," IEEE Trans. Power Electron., vol. 23, pp. 2319–2327, Sep. 2008.
[4]. W. Li and X. He, "Review of non-isolated high-step-up DC/DC converters in photovoltaic grid-connected applications," IEEE Trans. Ind. Electron., vol. 58, no. 4, pp. 1239–1250, Apr. 2011.
[5]. M. H. Todorovic, L. Palma, and P. N. Enjeti, "Design of a wide input range DC–DC converter with a robust power control scheme suitable for fuel cell power conversion," IEEE Trans. Ind. Electron., vol. 55, no. 3, pp. 1247–1255, Mar. 2008.

Abstract: Cross regulation is the main technical drawback of a Single-Inductor Multiple-Output (SIMO) dc-dc converter. This paper proposes a multivariable digital controller to suppress the cross regulation of a Single-Inductor Dual-Output (SIDO) buck converter in Continuous Conduction Mode (CCM) operation. The controller design methodology originates from the open-loop shaping of the Multi-Input Multi-Output (MIMO) systems. The control design procedure includes.......

[1]. H.-P. Le, C.-S. Chae, K.-C. Lee, S.-W. Wang, G.-H. Cho, and G.-H. Cho, "A single-inductor switching dc-dc converter with five outputs and ordered power-distributive control," IEEE Journal of Solid-State Circuits, vol. 42, no. 12, pp. 2706–2714, December 2007.
[2]. D. Kwon and G. A. Rincon-Mora, "Single-inductor- multiple-output switching dc-dc converters," IEEE Transactions on Circuits and Systems-
[3]. M.-H. Huang and K.-H. Chen, "Single-inductor multi-output (SIMO) dc-dc converters with high light-load efficiency and minimized cross-regulation for portable devices," IEEE Journal of Solid-State Circuits, vol. 44, no. 4, pp. 1099–1111, April 2009. Z. Shen, X. Chang, W. Wang, X. Tan, N. Yan, and [4] H. Min, "Predictive digital current control of single-inductor multiple-output converters in CCM with low cross regulation," IEEE Trans. on Power Electronics, vol. 27, no. 4, pp. 1917–1925, April 2012.

Abstract: In power engineering society, sinking the power loss in transmission lines and/or minimizing the voltage deviation at the load buses by controlling the reactive power is referred to as optimal reactive power dispatch (ORPD). ORPD is necessary for safe operation of power systems with regard to voltage stability. In this paper, the nature inspired Differential Evolutionary based Bat Algorithm (DEBA) is introduced to solve optimal reactive power flow problem in power systems.......
Keywords: Differential Evolutionary based Bat Algorithm, Optimal Reactive Power Dispatch, Active Power LossMinimization.

[1]. P.K. Roy , S.P. Ghoshal , S.S. Thakur, "Optimal VAR Control for Improvements in VoltageProfiles and for Real Power Loss Minimization using Biogeography Based Optimization",Electrical Power and Energy Systems, Vol. 43, No.1, pp. 830–838, December 2012.
[2]. Abbas Rabiee, MaziarVanouni, MostafaParniani, "Optimal Reactive Power Dispatch forImproving Voltage Stability Margin Using a Local Voltage Stability Index", Energy Conversionand Management, Vol. 59, pp. 66-73, July 2012.
[3]. KursatAyan, Ulaskilic, "Artificial Bee Colony Algorithm Solution for Optimal ReactivePower Flow", Applied Soft Computing, Vol.12, No. 5, pp. 1477–1482, May 2012.
[4]. M. Varadarajan, K.S. Swarup, "Differential Evolutionary Algorithm for Optimal ReactivePower Dispatch, Electrical Power & Energy Systems, Vol. 30, No. 8, pp. 435–441, October2008.