Study of Shaft Voltage on Short Circuit Alternator with Static Frequency Converter
Electric machines are driven nowadays by static system popularly known as soft starter. This paper describes a thyristor based static frequency converter (SFC) to run a large synchronous machine installed at a short circuit test laboratory. Normally a synchronous machine requires prime mover or some other driving mechanism to run. This machine doesn’t need a prime mover as it operates in dual mode. In the beginning SFC starts this machine as a motor to achieve the full speed. Thereafter whenever required it can be converted to generator mode. This paper begins with the various starting methodology of synchronous machine. Detailed of SFC with different operational modes have been analyzed. Shaft voltage is a very common phenomenon for the machines with static drives. Various causes of shaft voltages in perspective with this machine are the main attraction of this paper.
[1] A. Hisanori Taguchi, et al., "APS Control Method for Gas Turbine Startup by SFC”, International Power Electronics Conference, pp.264-269 IEEE, 2010.
[2] Zhang Yu-zhi, "Study of Process of Starting Pumped Storage Machines by Static Frequency Converter with Field Current Controlled”, International Conference on Signal Processing Systems, pp. V1-224 –V1-227, IEEE2010.
[3] Robert B., Fisher, P.E., "Introduction of Static Frequency Converters on SEPTA’s 25Hz Commuter Rail System”, pp.149-155, IEEE.
[4] L. J. Lane, D. F. Rogers, P. A. Vance, "Design and Tests of a Static Excitation System for Industrial and Utility Steam Turbine-Generators”, pp.1077-1085, A.I.E.E., 1962.
[5] R.C. Schaefer, "Applying Static Excitation Systems”, pp. 41-49, IEEE Industry Application Magazine Nov/Dec1998.
[6] Datta Arun Kumar, Dubey Manisha, Jain Shailendra, "Study of shaft voltage & bearing currents in electrical machines," IEEE Students' Conference on Electrical, Electronics and Computer Science (SCEECS), pp.1-4, 1-2 March 2012.
[7] Zhu, N.; Xu, D.; Wu, B.; Zargari, N. R.; Kazerani, M.; Liu, F.; , "Common mode voltage reduction methods for current-source converters in medium-voltage drives,", IEEE Transactions on Power Electronics, vol.28, no.2, pp.995-1006, Feb. 2013.
[8] R. S. Kanchan, P. N. Tekwani, and K. Gopakumar, "Three-level inverter scheme with common mode voltage elimination and DC link capacitor voltage balancing for an open-end winding induction motor drive," IEEE Transactions on Power Electronics, vol. 21, pp. 1676-1683, 2006.
[9] Yuen, K. K.-F.; Chung, H. S.-H.; Cheung, V. S.-P.; , "An active low-loss motor terminal filter for overvoltage suppression and common-mode current reduction" IEEE Transactions on Power Electronics, vol.27, no.7, pp.3158-3172, July 2012.
[10] Akagi, H.; Isozaki, K., "A hybrid active filter for a three-phase 12-pulse diode rectifier used as the front end of a medium-voltage motor drive", IEEE Transactions on Power Electronics, vol.27, no.1, pp.69-77, Jan. 2012.
[11] Tore Peterson, Kjell Frank, "Starting of large synchronous motor using static frequency converter”, paper 71 TP 519-PWR for IEEE International Symposium on High Power Testing, Portland, Ore., pp.172-179, July 18-23, 1971.
[12] Tsorng-Juu Liang, et al, "Analysis of 12 Pulse Phase Control AC/DC Converter”, IEEE 1999 International Conference on Power Electronics and Drive Systems, PEDS'99, pp.779-783, July 1999, Hong Kong.
[13] Tian Hua Liu, et al.,"Modeling and Harmonic Elimination for a Static Frequency Converter Driving a 300 MVA Synchronous Machine”, pp.602-607, IEEE, 1996.
[14] Ho-Seon Ryu, et al "A Study of Synchronous Motor Drive using Static Frequency Converter” EPE-PEMC, pp.1496-1499, 2006, IEEE.
[15] Datta Arun Kumar, Ansari M. A., Mondal N. R., Raghavaiah B. V. "A Novel Use of Power Electronics: Prime Mover-less Alternator with Static Drive & Excitation System” International Journal of Electronics & Communication Technology, Vol. 3, Issue 1, pp. 472-475, January - March 2012.
[16] Datta Arun Kumar, Dubey Manisha, Jain Shailendra, "Investigation of Bearing Currents in Dual Mode Operation of Synchronous Machine with Static Excitation System”, pp.45-53, Electrical and Electronics Engineering: An International Journal (ELELIJ), Wireilla Scientific Publications, Australia.
[17] Muetze A. and Binder A., "Calculation of circulating bearing currents in machines of inverter-based drive systems", IEEE Transactions on Industrial Electronics, vol. 54, no. 2, pp. 932-938, April 2007.
[1] A. Hisanori Taguchi, et al., "APS Control Method for Gas Turbine Startup by SFC”, International Power Electronics Conference, pp.264-269 IEEE, 2010.
[2] Zhang Yu-zhi, "Study of Process of Starting Pumped Storage Machines by Static Frequency Converter with Field Current Controlled”, International Conference on Signal Processing Systems, pp. V1-224 –V1-227, IEEE2010.
[3] Robert B., Fisher, P.E., "Introduction of Static Frequency Converters on SEPTA’s 25Hz Commuter Rail System”, pp.149-155, IEEE.
[4] L. J. Lane, D. F. Rogers, P. A. Vance, "Design and Tests of a Static Excitation System for Industrial and Utility Steam Turbine-Generators”, pp.1077-1085, A.I.E.E., 1962.
[5] R.C. Schaefer, "Applying Static Excitation Systems”, pp. 41-49, IEEE Industry Application Magazine Nov/Dec1998.
[6] Datta Arun Kumar, Dubey Manisha, Jain Shailendra, "Study of shaft voltage & bearing currents in electrical machines," IEEE Students' Conference on Electrical, Electronics and Computer Science (SCEECS), pp.1-4, 1-2 March 2012.
[7] Zhu, N.; Xu, D.; Wu, B.; Zargari, N. R.; Kazerani, M.; Liu, F.; , "Common mode voltage reduction methods for current-source converters in medium-voltage drives,", IEEE Transactions on Power Electronics, vol.28, no.2, pp.995-1006, Feb. 2013.
[8] R. S. Kanchan, P. N. Tekwani, and K. Gopakumar, "Three-level inverter scheme with common mode voltage elimination and DC link capacitor voltage balancing for an open-end winding induction motor drive," IEEE Transactions on Power Electronics, vol. 21, pp. 1676-1683, 2006.
[9] Yuen, K. K.-F.; Chung, H. S.-H.; Cheung, V. S.-P.; , "An active low-loss motor terminal filter for overvoltage suppression and common-mode current reduction" IEEE Transactions on Power Electronics, vol.27, no.7, pp.3158-3172, July 2012.
[10] Akagi, H.; Isozaki, K., "A hybrid active filter for a three-phase 12-pulse diode rectifier used as the front end of a medium-voltage motor drive", IEEE Transactions on Power Electronics, vol.27, no.1, pp.69-77, Jan. 2012.
[11] Tore Peterson, Kjell Frank, "Starting of large synchronous motor using static frequency converter”, paper 71 TP 519-PWR for IEEE International Symposium on High Power Testing, Portland, Ore., pp.172-179, July 18-23, 1971.
[12] Tsorng-Juu Liang, et al, "Analysis of 12 Pulse Phase Control AC/DC Converter”, IEEE 1999 International Conference on Power Electronics and Drive Systems, PEDS'99, pp.779-783, July 1999, Hong Kong.
[13] Tian Hua Liu, et al.,"Modeling and Harmonic Elimination for a Static Frequency Converter Driving a 300 MVA Synchronous Machine”, pp.602-607, IEEE, 1996.
[14] Ho-Seon Ryu, et al "A Study of Synchronous Motor Drive using Static Frequency Converter” EPE-PEMC, pp.1496-1499, 2006, IEEE.
[15] Datta Arun Kumar, Ansari M. A., Mondal N. R., Raghavaiah B. V. "A Novel Use of Power Electronics: Prime Mover-less Alternator with Static Drive & Excitation System” International Journal of Electronics & Communication Technology, Vol. 3, Issue 1, pp. 472-475, January - March 2012.
[16] Datta Arun Kumar, Dubey Manisha, Jain Shailendra, "Investigation of Bearing Currents in Dual Mode Operation of Synchronous Machine with Static Excitation System”, pp.45-53, Electrical and Electronics Engineering: An International Journal (ELELIJ), Wireilla Scientific Publications, Australia.
[17] Muetze A. and Binder A., "Calculation of circulating bearing currents in machines of inverter-based drive systems", IEEE Transactions on Industrial Electronics, vol. 54, no. 2, pp. 932-938, April 2007.
@article{"International Journal of Electrical, Electronic and Communication Sciences:66256", author = "Arun Kumar Datta and Manisha Dubey and Shailendra Jain", title = "Study of Shaft Voltage on Short Circuit Alternator with Static Frequency Converter", abstract = "Electric machines are driven nowadays by static system popularly known as soft starter. This paper describes a thyristor based static frequency converter (SFC) to run a large synchronous machine installed at a short circuit test laboratory. Normally a synchronous machine requires prime mover or some other driving mechanism to run. This machine doesn’t need a prime mover as it operates in dual mode. In the beginning SFC starts this machine as a motor to achieve the full speed. Thereafter whenever required it can be converted to generator mode. This paper begins with the various starting methodology of synchronous machine. Detailed of SFC with different operational modes have been analyzed. Shaft voltage is a very common phenomenon for the machines with static drives. Various causes of shaft voltages in perspective with this machine are the main attraction of this paper.
", keywords = "Capacitive coupling, electric discharge machining, inductive coupling, Shaft voltage, static frequency converter. ", volume = "7", number = "11", pages = "1476-7", }
