i-manager Publications

i-manager's Journal on Electrical Engineering (JEE)

Current Issue Vol. 17 Issue 2

Most Cited

Volume 7 Issue 4 April - June 2014

Research Paper

A Soft Switching DC–DC Converter With High Voltage Gain and Low Over Voltage Stress and Harmonics

Sinu K J* , K. Sathishkumar, K. Rajangam*, V. Muthukumarasamy****

* Assistant Professor, SCAD Institute of Technology, Coimbatore.

Assistant Professor, RVS Faculty of Engineering, Coimbatore.

* Professor & Head, SCAD Institute of Technology.

**** Assistant Professor, Department of Electrical & Electronics Engineering,SCAD Institute of Technology, Palladam

Sinu, K. J., Sathishkumar, K., Rajangam, K., and Muthukumarasamy, V. (2014). A Soft Switching DC–DC Converter with High Voltage Gain and Low Over Voltage Stress and Harmonics. i-manager’s Journal on Electrical Engineering , 7(4), 1-8. https://doi.org/10.26634/jee.7.4.2867

Abstract

In this paper a soft switching dc–dc converter with high voltage gain and low over voltage stress and harmonics is proposed. It consists of a ZVS boost converter stage and a ZVS half-bridge converter stage and the two stages are merged into a single stage. The ZVS boost converter stage pro- vides a continuous input current and ZVS operation of the power switches. The ZVS half-bridge converter stage provides a high voltage gain. The principle of operation and the system analysis are presented in this paper. Theoretical analysis and performance of the proposed converter were verified on a 100W experimental prototype operating at 108 kHz switching frequency. Here both the ZVS and ZCS is done. It reduces the overvoltage stress and harmonics.

References

[1]. F. Blaabjerg, Z. Chen, and S. B. Kjaer, (2004). “Power electronics as efficient interface in dispersed power generation systems,” IEEE Trans. Power Electron., Vol. 19, No. 5, pp. 1184–1194, Sep.

[2]. R. J. Wai, W. H. Wang, and C. Y. Lin, (2008). “Highperformance stand-alone photovoltaic generation system,” IEEE Trans. Ind. Electron., Vol. 55, No. 1, pp. 240–250, Jan.

[3]. R. J. Wai and W. H. Wang, (2008). “Grid-connected photovoltaic generation system,” IEEE Trans. CircuitsSyst. I, Reg. Papers, Vol. 55, No. 3, pp. 953–964, Apr.

[4]. R. J. Wai, C. Y. Lin, C. Y. Lin, R. Y. Duan, and Y. R. Chang, (2008). “Highefficiency power conversion system for kilowatt-level distributed generation unit with low input voltage,” IEEE Trans. Ind. Electron., Vol. 55, No. 10, pp. 3702–3714, Oct.

[5]. S. K. Mazumder, R. K. Burra, and K. Acharya, (2007). “A ripple-mitigating and energy-efficient fuel cell powerconditioning system,” IEEE Trans. Power Electron., Vol. 22, No. 4, pp. 1437–1452, Jul.

[6]. K. Kobayashi, H. Matsuo, and Y. Sekine, (2006). “Novel solar-cell power supply system using a multipleinput DC–DC converter,” IEEE Trans. Ind. Electron., Vol. 53, No. 1, pp. 281–286, Feb.

[7]. Q. Zhao, F. Tao, F. C. Lee, P. Xu, and J. Wei, (2008). “A simple and effective to alleviate the rectifier reverserecovery problem in continuous-currentmode boost converter,” IEEE Power Electron., Vol. 16, No. 5, pp. 649–658, Sep.

[8]. Q. Zhao and F. C. Lee, (2003). “High-efficiency, high step-up dc–dc converters,” IEEE Power Electron., Vol. 18, No. 1, pp. 65–73, Jan.

[9]. Q. Zhao, F. Tao, Y. Hu, and F. C. Lee, (2001). “Activeclamp DC/DC converter using magnetic switches,” in Proc. IEEE Appl. Power Electron. Conf.,

[10]. D. A. Grant, Y. Darroman, and J. Suter, (2007). “ Synthesis of tapped-inductor switched-mode converters,” IEEE Trans. Power Electron., Vol. 22, No. 5, pp. 1964–1969, Sep.

[11]. D. A. Grant, Y. Darroman, and J. Suter, (2007). “ Synthesis of tapped-inductor switched-mode converters,” IEEE Trans. Power Electron., Vol. 22, No. 5, pp. 1964–1969, Sep.

[12]. K. I. Hwu and Y. T. Yau, (2010). “Voltage-boosting converter on charge pump and coupling inductor with passive voltage clamping,” IEEE Trans. Ind. Electron., Vol. 57, No. 5, pp. 1719–1727, May.

[13]. S. V. Araujo, R. P. Torrico-Bascope, and G. V. Torrico- Bascope, “Highly efficient high step-up converter for fuelcell power processing based on three-state commutation cell,” IEEE Trans. Ind. Electron., Vol. 57, No. 6,

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Research Paper

A Neural Approach for Optimum Matching of Wind Turbines to The Potential Wind Site to obtain Higher Plant Factor

Pramod Raikar* , Shekhappa G. Ankaliki **

* PG Scholar, Department of Electrical & Electronics, SDMCET, Dharwad, India.

** Professor, Department of Electrical & Electronics, SDMCET, Dharwad,India.

Raikar, P. and Ankaliki, S. G. (2014). A Neural Approach for Optimum Matching of Wind Turbines to the Potential Wind Site to obtain Higher Plant Factor. i-manager’s Journal on Electrical Engineering , 7(4), 9-16. https://doi.org/10.26634/jee.7.4.2868

Abstract

A development of the techniques for accurately assessing the wind power potential of site is gaining increased significance. This is because of the fact that the planning and establishment of a wind energy system depends upon various factors. Once the details of wind resource is known for potential wind power site, efficient design of a wind energy system demands optimum matching of wind turbines to the potential wind site to obtain higher plant factor. The model which is designed is useful for planning of the wind power stations as it can be applied for accurate assessment of wind power potential at a site. The Weibull model is the most used one and provides good results. However, the accurate determination of the wind speed distribution law constitutes a major problem. Multi Layer Perceptron type Artificial Neural Networks (ANN) are used here for the approximation of the wind speed distribution law. In this paper, site energy characteristic is determined by means of the neural approach and compared with those obtained by the classical method. Distribution law is achieved by the neural model which provides assessments closer to the discrete distribution than the Weibull model.

References

[1]. Suresh H. Jangamshetti, Guruprasad Rau (2001). Optimum Siting of Wind Turbine Generators. IEEE transactions on Energy Conversion, Vol.16, No.1

[2]. Fawzi A. L. Jowder (2009). “Wind Power Analysis and Site Matching of Wind Turbine Generators in Kingdom of Bahrain”. Applied Energy 01/2009; 86(4):538-545. DOI:10.1016/j.apenergy.2008.08.006

[3]. Simon Haykin (2005). “Neural Network”, 2 Edition Pearson Education Publisher

[4]. Simon S. Haykin (1998). “Neural Networks A Comprehensive Foundation”, Prentice Hall.

[5]. Kishan Mehrotra, Chilukuri K. Mohan and Sanjay Ranka (1996). “Elements of Artificial Neural Networks” MIT Press

[6]. G. D. RAI (1999). “Non-conventional Energy Sources”, Unit-2, Khanna Publishers, New Delhi, PP 227-285.

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Research Paper

Transformer Less High Efficiency MOSFET Inverter with H6-Type configuration for Photovoltaic Applications

Sinu K J* , K. Saravanakumar, K. Rajangam*, Jagadeesh****

* Assistant Professor, Electrical & Electronics Engineering, SCAD Institute of Technology, India.

Assistant Professor, Electronics & Communication Engineering, RVS Faculty of Engineering, Sulur, India.

* Professor & Head, SCAD Institute of Technology, India.

**** Assistant Professor, Department of Electrical & Electronics Engineering, SCAD Institute of Technology, Palladam, India.

Sinu K. J, Saravanakumar, K., Rajangam, K. and Jagadeesh (2014). Transformer Less High Efficiency MOSFET Inverter With H6-Type Configuration for Photovoltaic Applications. i-manager’s Journal on Electrical Engineering , 7(4), 17-22. https://doi.org/10.26634/jee.7.4.2869

Abstract

A novel, high-efficiency inverter using MOSFETs for all active switches is presented for photovoltaic, nonisolated, ac module applications. The proposed H6-type configuration features high efficiency over a wide load range, low ground leakage current, no need for split capacitors, and low-output ac-current distortion. A two stages ac module combining non isolated high step up converter and high efficiency inverter with H6 type configuration used to solve the aforementioned issues. The two stages configuration can significantly reduce the power decoupling capacitance by locating the capacitor in dc link. Detailed power stages operating principle, PWM scheme and novel bootstrap power supply for proposed inverter are described. When the unipolar PWM scheme in used a transformer less PV system.

References

[1]. Andersen.M and B. Alvsten (2011), “200W low cost module integrated utility interface for modular photovoltaic energy systems,” in Proc. IEEEIECON,1995, pp. 572–577.1260 IEEE Transaction Power Electronics, Vol. 26, No. 4.

[2]. Akagi.H and T. Shimizu (2008), “Attenuation of conducted EMI emissions from an inverter-driven motor,” IEEE Trans. Power Electron., Vol. 23, No. 1, pp. 282–290.

[3]. Blaabjerg.F, Z. Chen, and S. B. Kjaer (2004), “Power electronics as efficient interface in dispersed power generation systems,” IEEE Trans. Power Electron., Vol. 19, No. 5, pp. 1184–1194.

[4]. Calais.M, J.Myrzik, T. Spooner, and V. G. Agelidis (1995–2000), “Inverters for single-phase grid connected photovoltaic systems – An overview,” in Proc. IEEEPESC, 2002, Vol. 2.

[5]. Chang.J.M, W. N. Chang, and S. J. Chiang (2006), “Single-phase grid-connected system using three-arm rectifier-inverter,” IEEE Trans. Aerosp.Electron. Syst., Vol. 42, No. 1, pp. 211–219.

[6]. Fornage.M (2007), “Method and apparatus for converting direct current to alternating current,” U.S. Patent applications 0 221 267 A1.

[7]. Funabiki.S, T. Tanaka, and T. Nishi, (2002). “A new buck-boost-operation-based sinusoidal inverter circuit,” in Proc. IEEE PESC, pp. 1624–1629.

[8]. Gubia.E, J. Lopez, and L.Marroyo, (2008). “Transformer less single-phase multilevel-based photovoltaic inverter,” IEEE Trans. Ind. Electron. Vol. 55, No. 7, pp. 2694–2702, .

[9]. Yu.W, C. Hutchens, J.-S. Lai, J. Zhang, G. Lisi, A. Djabbari, G. Smith,and T. Hegarty (2009), “High efficiency converter with charge pump and coupled inductor for wide input photovoltaic ac module applications,” in Proc.IEEE ECCE, San Jose, CA, , pp. 3895–3900.

[10]. Kjaer.S.B, J. K. Pedersen, and F. Blaabjerg (2005), “A review of single-phase grid-connected inverters for photovoltaic modules,” IEEE Trans. Ind.Appl., Vol. 41, No. 5, p. 1292,

[11]. Kjaer.S.B. And F. Blaabjerg (2003), “Design optimization of a single phase inverter for photovoltaic applications,” in Proc. IEEE PESC, Vol. 3, pp. 1183–1190.

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Research Paper

Implementation of Single and Double Stage Control of DC Traction Motor using MATLAB

M. Devarajan*

PG Student, Kingston Engineering College, Vellore.

Devarajan (2014). Implementation of Single and Double Stage Control of DC Traction Motor Using Matlab. i-manager’s Journal on Electrical Engineering , 7(4), 23-28. https://doi.org/10.26634/jee.7.4.2870

Abstract

This paper describes about the single and double stage control of DC traction motor. DC series motors provide excellent control of speed for acceleration and deacceleration and it is used for their simplicity, each of application and favourable cost still in indian country most of the locomotive run with DC motor only because DC series motor is high starting torque with load hence it is preferable for traction purpose. The invention relates generally to traction motor control systems, and relates more particularly to locomotive traction motor suspension and current control systems. In this case describes controlling of single and double stage of DC series traction motor. The simulation and experimental results are done by using MATLAB software package and shows the comparison results.

References

[1]. Jose A. Lozano, Jesus Felez, Juande Dios Sanz and Jose M. Mera, "Reliability and safety in railway”, Dr.Xavier Perpinya(Edition)[Online].Available: http://www.intechopen.com/books/reliability-and-safetyin- railway/railway-traction.

[2]. “How locomotive works a train”, http://www.railelectrica.com.

[3]. Juan W.Dixon, Matías Rodríguez and Rodrigo Huert ," Simplified Sensorless Control for BLDC Motor Using DSP Technology,"pp.1431-1442.

[4]. Mohammad S. Widyan a, Anas I. Al Tarabsheh a, Issa Y. Etier a, Rolf E. Hanitsch, (1995). "Transient Analysis and Output Characteristics of DC Motors Fed by Photovoltaic Systems," Jordan Journal of Mechanical and Industrial Engineering, Volume 4, Number 1, Jan.2010 ISSN 6665, pp. 193 – 204.

[5]. Don shaw," DC motor analysis and troubleshooting,".

[6]. Shaofeng Xiea, Jinbo Fenga, Gangyi Zhangb, (2011). "Study on simulation traction load with regenerative braking," 2nd International Conference on Advances in Energy Engineering (ICAEE), in Energy Procedia 14, pp.1299 – 1304.

[7]. Edward J. Orschek (1995). "Study of locomotive traction motor control system,"General Electric Company in at United States Patent Rights

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Research Paper

Sensorless Control of BLDC Motor using Hysteresis Comparator

Nimain Charan Nayak*

Professor, MNM Jain Engineering College, Chennai, India.

Nayak, N. C. (2014). Sensorless Control of BLDC Motor Using Hysteresis Comparator. i-manager’s Journal on Electrical Engineering , 7(4), 29-33. https://doi.org/10.26634/jee.7.4.2871

Abstract

This paper presents the BrushLess Dc (BLDC) motor sensorless control system. The sensorless techniques are based on a hysteresis comparator, and a potential start-up method with a high starting torque which is suggested. The hysteresis comparator is used to compensate for the phase delay of the back-EMFs due to a Low-Pass Filter (LPF) and also prevent multiple output transitions from noise or ripple in the terminal voltages. The rotor position is aligned at standstill for maximum starting torque without an additional sensor and any information of motor parameters. Also, the stator current can be easily adjusted by modulating the pulse width of the switching devices during the alignment. The life time of the motor is improved by using the sensorless technique.

References

[1]. N. Matsui, (1996)., “Sensorless PM brushless dc motor drives, ” IEEE Trans. IndElectron., Vol.43, No.2, pp. 300- 308

[2]. K. Y. Cheng and Y. Y. Tzou, (2003), “Design of a sensorless commutation IC for BLDC motors,” IEEE Trans. Power Electron., Vol.18, No.6, pp.1365-1375.

[3] Y. Wu, Z. Deng, X. Wang, X. Ling, and X. Cao, (2010), “Position sensorless control based on coordinate transformation for brushless DC motor drives,” IEEE Trans. Power Electron., Vol.25, No.9, pp.2365-2371.

[4] G. J. Su and J. W. McKeever, (2004), “Low-cost sensorless control of brushless DC motors with improved speed range,” IEEE Trans. Power Electron., Vol.19, No.2, pp.296-302.

[5]. D. H. Jung and I. J. Ha, (2000), “Low-cost sensorless control of brushless DC motors using a frequencyindependent phase shifter,” IEEE Trans. Power Electron., Vol.15, No.4, pp.744-752.

[6]. R. C. Becerra, T. M. Jahns, and M. Ehsani, (1991), “Four-quadrant sensorless brushless ECM drive,” in Proc. IEEE- APEC'91 Conf., pp.202-209.

[7]. T. M. Jahn, R. C. Becerra, and M. Ehsan, (1991), “Integrated current regulation for a brushless ECM drive,” IEEE Trans. Power Electron., Vol.6, No.1, pp.118-126.

[8]. J. X. Shen, Z. Q. Zhu, and D. Howe, (2004), “Sensorless flux-weakening control of permanent-magnet brushless machines using third-harmonic back-EMF,” IEEE Trans. Ind. Appl., Vol.40, No.6, pp.1629-1636.

[9]. M. Fraq and D. Ishak, (2009), “A new scheme sensorless control of BLDC motor using software PLL and third harmonic back-EMF,” in Proc IEEE-ISIEA, pp.861-865.

[10]. W. J. Lee, and S. K. Sul, (2006), “A new starting method of BLDC motors without position sensor,” IEEE Trans. Ind. Appl., Vol.42, No.6, pp.1532-1538.

[11]. P. Champa, P. Somrisi, P. Wipasuramonton, and P. Nakmahachalasint, (2009),“Initial rotor position estimation for sensorless brushless DC drives,”IEEE Trans. Ind. Appl., Vol.45, No.4, pp.1318-1324.

[12]. Y. S. Lai, F. S. Shyu, and S. S. Tseng, (2003), “New initial position detection technique for three-phase brushless DC motor without position and current sensors,” IEEE Trans. Ind. Appl., Vol.39, No.2, pp.485-491.

[13]. R. F. Coughlin and F. F. Driscoll, (2007), Operational amplifiers and linear integrated circuit. Prentice Hall.

[14]. L. Zhang, W. Xiao, and W. Qu, (2006), “Sensorless control of BLDC motors using an improved low-cost back- EMF detection method,” in Proc. IEEE-PESC, pp.1-7.

i-manager's Journal on Electrical Engineering (JEE)

Current Issue Vol. 17 Issue 2

Most Read

Most Cited

Volume 7 Issue 4 April - June 2014

A Soft Switching DC–DC Converter With High Voltage Gain and Low Over Voltage Stress and Harmonics

Sinu K J* , K. Sathishkumar**, K. Rajangam***, V. Muthukumarasamy****

* Assistant Professor, SCAD Institute of Technology, Coimbatore. ** Assistant Professor, RVS Faculty of Engineering, Coimbatore. *** Professor & Head, SCAD Institute of Technology. **** Assistant Professor, Department of Electrical & Electronics Engineering,SCAD Institute of Technology, Palladam

Sinu, K. J., Sathishkumar, K., Rajangam, K., and Muthukumarasamy, V. (2014). A Soft Switching DC–DC Converter with High Voltage Gain and Low Over Voltage Stress and Harmonics. i-manager’s Journal on Electrical Engineering , 7(4), 1-8. https://doi.org/10.26634/jee.7.4.2867

Abstract

References

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A Neural Approach for Optimum Matching of Wind Turbines to The Potential Wind Site to obtain Higher Plant Factor

Pramod Raikar* , Shekhappa G. Ankaliki **

* PG Scholar, Department of Electrical & Electronics, SDMCET, Dharwad, India. ** Professor, Department of Electrical & Electronics, SDMCET, Dharwad,India.

Raikar, P. and Ankaliki, S. G. (2014). A Neural Approach for Optimum Matching of Wind Turbines to the Potential Wind Site to obtain Higher Plant Factor. i-manager’s Journal on Electrical Engineering , 7(4), 9-16. https://doi.org/10.26634/jee.7.4.2868

Abstract

References

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Transformer Less High Efficiency MOSFET Inverter with H6-Type configuration for Photovoltaic Applications

Sinu K J* , K. Saravanakumar**, K. Rajangam***, Jagadeesh****

Sinu K. J, Saravanakumar, K., Rajangam, K. and Jagadeesh (2014). Transformer Less High Efficiency MOSFET Inverter With H6-Type Configuration for Photovoltaic Applications. i-manager’s Journal on Electrical Engineering , 7(4), 17-22. https://doi.org/10.26634/jee.7.4.2869

Abstract

References

Full Article (HTML)

Pdf

Implementation of Single and Double Stage Control of DC Traction Motor using MATLAB

M. Devarajan*

PG Student, Kingston Engineering College, Vellore.

Devarajan (2014). Implementation of Single and Double Stage Control of DC Traction Motor Using Matlab. i-manager’s Journal on Electrical Engineering , 7(4), 23-28. https://doi.org/10.26634/jee.7.4.2870

Abstract

References

Full Article (HTML)

Pdf

Sensorless Control of BLDC Motor using Hysteresis Comparator

Nimain Charan Nayak*

Professor, MNM Jain Engineering College, Chennai, India.

Nayak, N. C. (2014). Sensorless Control of BLDC Motor Using Hysteresis Comparator. i-manager’s Journal on Electrical Engineering , 7(4), 29-33. https://doi.org/10.26634/jee.7.4.2871

Abstract

References

Full Article (HTML)

Pdf

Sinu K J* , K. Sathishkumar, K. Rajangam*, V. Muthukumarasamy****

* Assistant Professor, SCAD Institute of Technology, Coimbatore.

Assistant Professor, RVS Faculty of Engineering, Coimbatore.

* Professor & Head, SCAD Institute of Technology.

**** Assistant Professor, Department of Electrical & Electronics Engineering,SCAD Institute of Technology, Palladam

* PG Scholar, Department of Electrical & Electronics, SDMCET, Dharwad, India.

** Professor, Department of Electrical & Electronics, SDMCET, Dharwad,India.

Sinu K J* , K. Saravanakumar, K. Rajangam*, Jagadeesh****