Analysis and Design Aspects of a Series Power Semiconductor Array with Digital Waveform Control Capability for Single Phase AC Voltage Regulators and Other Applications

ABSTRACT

A series connected power semiconductor array, with digital control capability could be used for developing single phase AC regulators or other applications such as AC electronic loads. This technique together with an ordinary gapless transformer could be used to develop a low cost AC voltage regulator (AVR) to provide better or comparable specifications with bulky ferro-resonant AVR types. One primary advantage of the technique is that digital control can be used to minimize harmonics. Commencing with a review of AC voltage regulator techniques for single phase power conditioning systems, an analysis and design aspects of this technique is presented with experimental results for AVRs. Guidelines on how to utilize the technique in a generalized basis is also summarized together with a summary of a technique for achieving harmonic control.

A series connected power semiconductor array, with digital control capability could be used for developing single phase AC regulators or other applications such as AC electronic loads. This technique together with an ordinary gapless transformer could be used to develop a low cost AC voltage regulator (AVR) to provide better or comparable specifications with bulky ferro-resonant AVR types. One primary advantage of the technique is that digital control can be used to minimize harmonics. Commencing with a review of AC voltage regulator techniques for single phase power conditioning systems, an analysis and design aspects of this technique is presented with experimental results for AVRs. Guidelines on how to utilize the technique in a generalized basis is also summarized together with a summary of a technique for achieving harmonic control.

KEYWORDS

Power Conditioners, AC Voltage Regulators (AVR), Power Semiconductors, Digital Control, Electronic AC Loads

Power Conditioners, AC Voltage Regulators (AVR), Power Semiconductors, Digital Control, Electronic AC Loads

Cite this paper

nullN. Kularatna and C. Jindasa, "Analysis and Design Aspects of a Series Power Semiconductor Array with Digital Waveform Control Capability for Single Phase AC Voltage Regulators and Other Applications,"*Circuits and Systems*, Vol. 2 No. 3, 2011, pp. 249-259. doi: 10.4236/cs.2011.23035.

nullN. Kularatna and C. Jindasa, "Analysis and Design Aspects of a Series Power Semiconductor Array with Digital Waveform Control Capability for Single Phase AC Voltage Regulators and Other Applications,"

References

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[2] D. O. Koval, R. A. Bocancea, K. Yao and M. B. Hughes, “Canadian National Power Quality Survey: Frequency and Duration of Voltage Sags and Surges at Industrial Sites,” IEEE Transactions on Industry Applications, Vol.34, No. 5, 1998, pp. 904-910. doi:10.1109/28.720428

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[12] D. Jang and G. Choe, “Step-Up/Down Ac Voltage Regulator Using Transformer with Tap Changer and PWM AC Chopper,” IEEE Transactions on Industrial Electronics, Vol. 45, No. 6, 1998, pp. 905-911.

[13] Y. S. Lee, D. K. W. Cheng, and Y. C. Cheng, “Design of a Novel Ac Regulator,” IEEE Transactions on Industrial Electronics, Vol. 38, No. 2, 1991, pp. 89-94. doi:10.1109/41.88900

[14] J. C. Bowers, S. J. Garret, H. A. NienHaus and J. L. Brooks, “A Solid State Transformer,” IEEE Power Electronics Specialists Conference, Atlanta, 16-20 June 1980, pp. 253-264.

[15] M. T. Tsai, “Analysis and Design of a Cost-Effective Series Connected AC Voltage Regulator,” IEE Proceedings of Electric Power Applications, Vol. 151, No. 1, 2004, pp. 107-115.

[16] M. T. Tsai, “Design of a Compact Series-Connected AC Voltage Regulator with an Improved Control Algorithm,” IEEE Transactions on Industrial Electronics, Vol. 51, No. 4, 2004, pp. 933-936.

[17] A. D. V. N. Kularatna, “Low Cost, Light Weight AC Regulator Employing Bipolar Power Transistors,” Proceedings of the 21st International Power Quality Conference, Philadelphia, 24 October 1990, pp. 67-76.

[18] A. D. V. N. Kularatna, “Techniques Based on Bipolar Power Transistor Arrays for Regulation of Ac Line Voltage,” Proceedings of the 5th Annual European Conference on Power Electronics and Applications, Brighton, 13-16 September 1993, pp. 96-100.

[19] A. D. V. N. Kularatna and S. D. Godakumbura, “Use of Spice Simulation for Predicting the Harmonic Capability of an Ac Regulator Technique Based on a Bipolar Power Transistor Array,” Proceedings of the 5th International Conference on Power Electronics and Variable Speed Drives, London, 26-28 October 1994, pp. 157-162. doi:10.1049/cp:19940957

[20] A. D. V. N. Kularatna and S. D. Godakumbura, “Use of Voltage Dip and Up Simulator for Testing the Transient Behaviour of a Bipolar Power Transistor Array Based Ac Line Voltage Regulator,” Proceedings of European Conference on Power and Applications, Vol. 3, pp. 3.298-3.303.

[21] C. R. Selvakumar, “Negative Feedback High Efficiency Ac Voltage Regulator,” IEEE Transactions on Industrial Electronics and Control Instrumentation, Vol. IECI-28, No. 1, 1981, pp. 24-27. doi:10.1109/TIECI.1981.351019

[22] “A Linear technique for Ac Voltage Regulation Using an Ordinary Transformer and Power Semiconductors,” Sri Lanka Patent No. 10028, 1990.

[23] N. Kularatna and P. Cho, “A Power Sharing Series Power BJT Array with Isolated Low Voltage Control for AC Power Control Applications,” 32nd Annual Conference on IEEE Industrial Electronics, Paris, 6-10 November 2006, pp. 1715-1720. doi:10.1109/IECON.2006.347430

[24] N. Kularatna and P. Cho, “Design Approach to an AC Electronic Load Base Don Generalized Series Power Transistor Array,” CD-ROM, Session PQT 17, Power Quality Conference, Long beach, October 2006.

[25] C. Jinadasa, “High Power Linear Electronic AC Load for Testing UPS Systems.” Master’s Thesis, The University of Waikato, Hamilton, 2007.

[26] N. Kularatna, “Power Electronics Design Handbook-Low Voltage Components and Applications, Chapter 6,” Butterworth, Oxford, 1998.

[27] K. Goulet, “Automation Equipment of the 90s-Power Conditioning Equipment of the 60s,” Proceedings of the Power Quality, USA, 1990, pp. 64-77.

[28] “Linear Applications of Optocouplers,” Application Note 951-2, Agilent Technologies, 1999.

[1] G. T. Heydt, “Electric Power Quality: A Tutorial Introduction,” IEEE Computer Applications in Power, Vol. 11, No. 1, 1998, pp. 15-19.

[2] D. O. Koval, R. A. Bocancea, K. Yao and M. B. Hughes, “Canadian National Power Quality Survey: Frequency and Duration of Voltage Sags and Surges at Industrial Sites,” IEEE Transactions on Industry Applications, Vol.34, No. 5, 1998, pp. 904-910. doi:10.1109/28.720428

[3] K. M. Michaels, “Sensible Approaches to Diagnosing Power Quality Problems,” IEEE Transactions on Industry Applications, Vol. 33, No. 4, 1997, pp. 1124-1130.

[4] A. Domijan, J. T. Heydt, A. P. S. Meliopoulos, M. S. S. Venkata and S. West, “Directions of Research on Electric Power Quality,” IEEE Transactions on Power Delivery, Vol. 8, No. 1, 1993, pp. 429-436.

[5] R. Ellis and B. Guidry, “Power Quality Concerns and Solutions,” IEEE Industry Applications Magazine, Vol. 11, No. 6, 2005, pp. 20-24.

[6] W. E. Kazibwe and H. M. Sendaula, “Expert System Targets Power Quality Issues,” IEEE Computer Applications in Power, Vol. 5, No. 2, 1992, pp. 29-33.

[7] N. Kularatna, “Worst Case Power Quality Environments and Design of Power Electronics Products: Experiences of a Design Team in a Developing Country,” Proceedings of Power Systems World—2000 Conference (Power Quality’2000), USA, pp. 109-116.

[8] Magtech Voltage Booster, Magtech. http://www.magtech.no/www.

[9] G. Evans, “Power Quality Source Book,” Intertec International, Ventura, 1991.

[10] J. W. Clarke, “AC Power Conditioners,” Academic Press, Cambridge, 1990.

[11] C. Chen and D. Divan, “Simple Topologies for Single Phase AC Line Conditioning,” IEEE Transactions on Industry Applications, Vol. 30, No. 2, 1994, pp. 406-412. doi:10.1109/28.287516

[12] D. Jang and G. Choe, “Step-Up/Down Ac Voltage Regulator Using Transformer with Tap Changer and PWM AC Chopper,” IEEE Transactions on Industrial Electronics, Vol. 45, No. 6, 1998, pp. 905-911.

[13] Y. S. Lee, D. K. W. Cheng, and Y. C. Cheng, “Design of a Novel Ac Regulator,” IEEE Transactions on Industrial Electronics, Vol. 38, No. 2, 1991, pp. 89-94. doi:10.1109/41.88900

[14] J. C. Bowers, S. J. Garret, H. A. NienHaus and J. L. Brooks, “A Solid State Transformer,” IEEE Power Electronics Specialists Conference, Atlanta, 16-20 June 1980, pp. 253-264.

[15] M. T. Tsai, “Analysis and Design of a Cost-Effective Series Connected AC Voltage Regulator,” IEE Proceedings of Electric Power Applications, Vol. 151, No. 1, 2004, pp. 107-115.

[16] M. T. Tsai, “Design of a Compact Series-Connected AC Voltage Regulator with an Improved Control Algorithm,” IEEE Transactions on Industrial Electronics, Vol. 51, No. 4, 2004, pp. 933-936.

[17] A. D. V. N. Kularatna, “Low Cost, Light Weight AC Regulator Employing Bipolar Power Transistors,” Proceedings of the 21st International Power Quality Conference, Philadelphia, 24 October 1990, pp. 67-76.

[18] A. D. V. N. Kularatna, “Techniques Based on Bipolar Power Transistor Arrays for Regulation of Ac Line Voltage,” Proceedings of the 5th Annual European Conference on Power Electronics and Applications, Brighton, 13-16 September 1993, pp. 96-100.

[19] A. D. V. N. Kularatna and S. D. Godakumbura, “Use of Spice Simulation for Predicting the Harmonic Capability of an Ac Regulator Technique Based on a Bipolar Power Transistor Array,” Proceedings of the 5th International Conference on Power Electronics and Variable Speed Drives, London, 26-28 October 1994, pp. 157-162. doi:10.1049/cp:19940957

[20] A. D. V. N. Kularatna and S. D. Godakumbura, “Use of Voltage Dip and Up Simulator for Testing the Transient Behaviour of a Bipolar Power Transistor Array Based Ac Line Voltage Regulator,” Proceedings of European Conference on Power and Applications, Vol. 3, pp. 3.298-3.303.

[21] C. R. Selvakumar, “Negative Feedback High Efficiency Ac Voltage Regulator,” IEEE Transactions on Industrial Electronics and Control Instrumentation, Vol. IECI-28, No. 1, 1981, pp. 24-27. doi:10.1109/TIECI.1981.351019

[22] “A Linear technique for Ac Voltage Regulation Using an Ordinary Transformer and Power Semiconductors,” Sri Lanka Patent No. 10028, 1990.

[23] N. Kularatna and P. Cho, “A Power Sharing Series Power BJT Array with Isolated Low Voltage Control for AC Power Control Applications,” 32nd Annual Conference on IEEE Industrial Electronics, Paris, 6-10 November 2006, pp. 1715-1720. doi:10.1109/IECON.2006.347430

[24] N. Kularatna and P. Cho, “Design Approach to an AC Electronic Load Base Don Generalized Series Power Transistor Array,” CD-ROM, Session PQT 17, Power Quality Conference, Long beach, October 2006.

[25] C. Jinadasa, “High Power Linear Electronic AC Load for Testing UPS Systems.” Master’s Thesis, The University of Waikato, Hamilton, 2007.

[26] N. Kularatna, “Power Electronics Design Handbook-Low Voltage Components and Applications, Chapter 6,” Butterworth, Oxford, 1998.

[27] K. Goulet, “Automation Equipment of the 90s-Power Conditioning Equipment of the 60s,” Proceedings of the Power Quality, USA, 1990, pp. 64-77.

[28] “Linear Applications of Optocouplers,” Application Note 951-2, Agilent Technologies, 1999.