iosr-JEEE   Volume-4 ~ Issue-2

Abstract: Coreless PCB transformers are one of the most efficient transformers due to their zero core losses, low cost and simplicity of the fabrication. In this paper, a novel two layers PCB transformer is designed and simulated using CST Studio 3D software. In addition, since the optimal operating frequency has a profound impact on the efficiency of the circuit, this parameter is identified using simulation in this work.
Keywords -Coreless PCB transformer, maximum coupling frequency, coupling coefficient, resonant frequency

[1] S. Y. R. H. a. H. S.-H. C. S.C.Tang, "Characterization of Coreless Printed Circuit Board (PCB) Transformers-A Fundamental
Concept for Signal and Energy Transfer," IEEE Transactions on Power Electronics, vol. 15, 2000.
[2] S. Y. R. H. S.C.Tang, and Henry Shu-Hung Chung, "Characterization of Coreless Printed Circuit Board (PCB) Transformers," IEEE,
vol. 15, NOVEMBER 2000.
[3] P. K. S. R.Steiner, F.Krismer and J.W.Kolar, "Contactless Energy Transmission for an Isolated 100W Gate Drive Supply Of a
Medium Voltage Converter," IEEE, 2009.
[4] H. B. K. a. D. K. B. Radhika Ambatipudi, "Coreless Printed Circuit Board (PCB) Step-down Transformer for DC-DC Converter
Applications," World Academy of Science, Engineering and Technology 70 2010, 2010.
[5] H. S.-H. C. S.Y.(Ron) Hui, and S.C. Tang, "Coreless Printed Circuit Board (PCB) Transformers for Power MOSFET/IGBT Gate
Drive Circuits," IEEE TRANSACTIONS ON POWER ELECTRONICS, vol. 14, MAY 1999.
[6] S. C. T. S. Y. (Ron) Hui, and Henry Shu-Hung Chung,, "Optimal Operation of Coreless PCB Transformer-Isolated Gate Drive
Circuits with Wide Switching Frequency Range," IEEE TRANSACTIONS ON POWER ELECTRONICS, vol. 14, MAY 1999.
[7] R. A. Hari Babu Kotte, Kent Bertilsson, "A ZVS Flyback DC-DC Converter using Multilayered Coreless Printed-Circuit Board
(PCB) Step-down Power Transformer," Proceedings of World Academy of Science, Engineering and Technology, vol. 70, pp. 148-
155, 2010.
[8] R. A. a. K. B. Hari Babu Kotte, "High Speed Cascode Flyback Converter Using Multilayered Coreless Printed Circuit Board (PCB)
Step-Down Power Transformer," 8th International Conference on Power Electronics-ECCE Asia May 30-June 3,2011, The Shilla
Jeju, Korea, 2011.

Abstract: This paper represents a new dimension of the Flexible AC Transmission System (FACTS) called as Distributed Power-Flow Controller (DPFC). The aim of this paper is to develop a new type of power-flow controlling device that offers the same control capability as the UPFC, at a reduced cost and with increased reliability. The new device, the so-called Distributed Power Flow Controller (DPFC), is a further development of the UPFC. The DPFC eliminates the common DC link within the UPFC, to enable the independent operation of the shunt and the series converters which enhances the effective placement of the series and shunt converters.
Keywords: FACTS, Power Flow Controlling Devices,UPFC,IPFC, DPFC

[1] L. Gyugyi, C. D. Schauder, S. L. Williams, T. R. Rietman, D. R. Torgerson, and A. Edris. "The unified power flow controller: a
new approach to power transmission control". Power Delivery, IEEE Transactions on, 1995.
[2] L. Gyugyi, K. K. Sen, and C. D. Schauder. "The interline power flow con-troller concept: a new approach to power flow
management in transmission systems". Power Delivery, IEEE Transactions on, 1999.
[3] D. Van Hertem, J. Verboomen, R. Belmans, and W. L. Kling. "Power flow controlling devices: an overview of their working
principles and their applica-tion range". In: Future Power Systems, International Conference on, 2005.
[4] R. L. Vasquez Arnez. "The Interline Power Flow Controller: Further aspects related to its operation and main limitations". In:
Transmission and Distribution Conference and Exposition, IEEE/PES, 2008.
[5] Yuan, Z.; de Haan, S.W.H.; Ferreira, B.: "UPFC with Eliminated Common DCLink Connection between Shunt and Series Part",
IEEE Power Engineering Society General Meeting (PESGM) 2007, Tampa, USA.
[6] Yuan, Z.; de Haan, S.W.H.; Ferreira, B.: "A New FACTS Component – Distributed Power Flow Controller (DPFC)", European
Conference on Power Electronics Applications (EPE) 2007, Aalborg, Denmark.
[7] Yuan, Z.; de Haan, S.W.H.; Ferreira, B.: "A Method of Transmitting Active Power Between Converters with Eliminated Common
DC Link", IEEE Benelux Young Research Symposium in Electrical Power Engineering 2008, Eindhoven, the Netherlands.

Abstract:This paper presents the comparison of performance between PI and PID control scheme of Matrix Converter fed Induction Motor Drive. For the performance comparison modeling and simulation is done for both PI and PID control scheme of Matrix Converter, controlling the Induction Motor Drive. Simulation model consists a three phase matrix converter, an induction motor, a field oriented controller and a power supply. Venturini's modulation algorithm is used for simulation model. The algorithm of Venturini provides unity displacement factor in the input regardless of the load displacement factor and it can be easily implemented in the closed loop operation. Simulation results are presented for the output of converter for both controlling scheme. The result shows that the performance of matrix converter fed induction motor drive using PID control is better than the PI control scheme.
Keywords: Field oriented control, Induction Motor, Matrix Converter, PI control, PID control

[1] L.Gyugi and B.R.Pelly, Static Power Freuency Changers, New York : Wiley-Interscience 1976.
[2] A.Alesina and M.Venturini,"Solid state power conversion : A Fourier analysis approach to generalized transformer synthesis" IEEE
Transaction on Circuit systems, Vol. CAS-28, No.4, 1981, pp 319-330.
[3] A. Alesina, M.G.B.V., "Analysis and Design of Optimum-Amplitude Nine – Switch Direct AC-AC Converters." IEEE Trans. On
Power. Electronic, 4 (1989)
[4] D. Casadei, G.S., A. Tani, and L. Zari, "Matrix Converters Modulation Strategies: A New General Approach Based on Space -
Vector Representation of the Switch State." IEEE Trans. on Industrial Electronic, 49(2) (2002)
[5] P. W. Wheeler, J.R., J. C. Claire, L.Empringham, A. Weinstein, "Matrix Converters : A Technology Review." IEEE Trans. on
Industrial Electronic, 49(2) (2002)
[6] Ruzlaini Ghoni, Ahmed N.Abdalla, Zulkarnain Lubis, Mohd Nuhairi, Mohd Yusri "Performance Analysis of Difference Matrix
Converter Topologies on Three Phase Induction Motor Drives", in 2nd International Conference On Engineering Technology, 2009
[7] Empringham L, Wheeler PW, Clare JC (1998) Intelligent commutation of matrix converter bi-directional switch cells using novel
gate drive techniques. In: IEEE PESC'98, Fukuoka, Japan, 17–22 May. IEEE, Piscataway, N.J., pp 707– 713
[8] Chang J, Sun T, Wang A (2002) Highly compact AC–AC converter achieving a high voltage transfer ratio. Proc IEEE Trans Ind
Electron 49:345–352
[9] Klumpner C, Nielson P, Boldea I, Blaabjerg F (2002) A new matrix converter motor (MCM) for industry applications. Proc IEEE
Trans Ind Electron 49:325–335
[10] Simon O, Mahlein J, Muenzer MN, Bruckmann M (2002) Modern solutions for industrial matrix-converter applications. Proc IEEE Trans Ind Electron 49:401–406