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Abstract

In recent years, assessing supply system impedance has become crucial due to the concerns on power quality and the proliferation of distributed generators. In this paper, a novel method is shown for passive measurement of system impedances using the gapless waveform data collected by a portable power quality monitoring device. This method improves the overall measurement accuracy through data regrouping. Compared with the traditional methods that use the consecutive measurement data directly, the proposed method regroups the data to find better candidates with less flotation on the system side. Simulation studies and extensive field tests have been conducted to verify the effectiveness of the proposed method. The results indicate that the proposed method can serve as a useful tool for impedance measurement tasks performed by utility companies.
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Authors and Affiliations

Shuangting Xu
1
Xianyong Xiao
1
Yang Wang
1
Jun Wu
2
ORCID: ORCID

  1. Sichuan University, The College of Electrical and Engineering, Chengdu 610065, China
  2. Electric Power Research Institute of State Grid Zhejiang Electric Power Company, Hangzhou 310014, China
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Abstract

The paper presents a simulation model of the hybrid magnetic bearing dedicated to simulations of transient state. The proposed field-circuit model is composed of two components. The first part constitutes a set of ordinary differential equations that describes electrical circuits and mechanics. The second part of the simulation model consists of parameters such as magnetic forces, dynamic inductances and velocity-induced voltages obtained from the 3D finite element analysis. The MATLAB/Simulnik softwarewas used to implement the simulation model with the required control system. The proposed field-circuit model was validated by comparison of time responses with the prototype of the hybrid magnetic bearing.

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Bibliography

[1] G. Schweitzer and H. Maslen. Magnetic bearings, theory, design, and application to rotating machinery. Springer, 2009.
[2] L. Ji, L. Xu, and Ch. Jin. Research on a low power consumption six-pole heteropolar hybrid magnetic bearing. IEEE Transactions on Magnetics, 49(8):4918–4926, 2013. doi: 10.1109/TMAG.2013.2238678.
[3] A. Piłat. Active magnetic suspension and bearing. In G. Petrone and G. Cammarata, Recent advances in modelling and simulation, chapter 24, pages 453–470. I-Tech Education and Publishing, 2008.
[4] A. Iordanidis, R. Wrobel, D. Holliday, and P. Mellor. A field-circuit model of an electrical gearbox actuator. In Proceedings of Second International Conference on Power Electronics, Machines and Drives (PEMD 2004), pages 21–26, Edinburgh, UK, 31 March–2 April, 2004. doi: 10.1049/cp:20040410.
[5] B. Tomczuk, A. Waindok, and D. Wajnert. Transients in the electromagnetic actuator with the controlled supplier. Journal of Vibroengineering, 14(1):39–44, 2012. https://www.jvejournals.com/article/10546/pdf.
[6] B. Tomczuk and M. Sobol. A field-network model of a linear oscillating motor and its dynamics characteristics. IEEE Transactions on Magnetics, 41(8):2362–2367, 2005. doi: 10.1109/TMAG.2005.852941.
[7] B. Tomczuk and D.Wajnert. Field–circuit model of the radial active magnetic bearing system. Electrical Engineering, 100(4):2319–2328, 2018. doi: 10.1007/s00202-018-0707-7.
[8] J. Zimon, B. Tomczuk, and D. Wajnert. Field-circuit modeling of AMB system for various speeds of the rotor. Journal of Vibroengineering, 14(1):165–170, 2012. https://www.jvejournals.com/article/10565/pdf.
[9] M. Łukaniszyn, M. Jagieła and, R.Wróbel. Electromechanical properties of a disc-type salient pole brushless DC motor with different pole numbers. COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 22(2):285–303, 2003. doi: 10.1108/03321640310459216.
[10] M. Łukaniszyn, R. Wróbel, and M. Jagieła. Field-circuit analysis of construction modifications of a torus-type PMDC motor. COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 22(2):337–355, 2003. doi: 10.1108/03321640310459261.
[11] R. Pollanen, J. Nerg, and O. Pyrhonen. Reluctance network method based dynamic model of radial active magnetic bearings. In Proceedings of the 2005 IEEE International Magnetics Conference (INTERMAG), pages 715–716, Nagoya, Japan, 4–8 April, 2005. doi: 10.1109/INTMAG.2005.1464144.
[12] M. Antila, E. Lantto and A. Arkkio. Determination of forces and linearized parameters of radial active magnetic bearings by finite element technique. IEEE Transactions on Magnetics, 34(3):684–694, 1998. doi: 10.1109/20.668066.
[13] B. Polajzer, G. Stumberger, J. Ritonja, and D. Dolinar. Variations of active magnetic bearings linearized model parameters analyzed by finite element computation. IEEE Transactions on Magnetics, 44(6):1534–1537, 2008. doi: 10.1109/TMAG.2007.916650.
[14] B. Tomczuk and D. Koteras. 3D Field Analysis in 3-phase amorphous modular transformer under increased frequency operation. Archives of Electrical Engineering, 64(1):119–127, 2015. doi: 10.1515/aee-2015-0011.
[15] Z. Badics and Z.J. Cendes. Source field modeling by mesh incidence matrices. IEEE Transactions on Magnetics, 43(4):1241–1244, 2007. doi: 10.1109/TMAG.2006.890967.
[16] D. Wajnert and B. Tomczuk. Simulation for the determination of the hybrid magnetic bearing’s electromagnetic parameters. Przegląd Elektrotechniczny, 93(2):157–160, 2017. http://pe.org.pl/articles/2017/2/34.pdf.
[17] A. Mystkowski. Energy saving robust control of active magnetic bearings in flywheel. Acta Mechanica et Automatica, 6(3):72–76, 2012.
[18] A. Piłat. PD control strategy for 3 coils AMB. In Proceedings of the 10th International Symposium on Magnetic Bearing, pages 34–39, Martigny, Switzerland, August 21–23, 2006.
[19] D. Kozanecka. Digitally controlled magnetic bearing. Łódz University of Technology, 2001 (in Polish).
[20] S. Myburgh, G. von Schoor, and E. O. Ranft. A non-linear simulation model of an active magnetic bearings supported rotor system. In Proceedings of The XIX International Conference on Electrical Machines (ICEM 2010), pages 1–6, Rome, Italy, 6–8 September 2010. doi: 10.1109/ICELMACH.2010.5607982.
[21] Z. Gosiewski and A. Mystkowski. Robust control of active magnetic suspension: Analytical and experimental results. Mechanical Systems and Signal Processing, 22(6):1297–1303, 2008. doi: 10.1016/j.ymssp.2007.08.005.
[22] A. Mystkowski. Robust control of vibration of the magnetically suspended rotor. Ph.D. Thesis, AGH University of Science and Technology, Cracow, Poland, 2007 (in Polish).
[23] A. Piłat. Control of magnetic levitation systems. Ph.D. Thesis, AGH University of Science and Technology, Cracow, Poland, 2002 (in Polish).
[24] Z. Gosiewski. Magnetic bearings for rotating machines. Controlling and research. Biblioteka Naukowa Instytutu Lotnictwa, 1999 (in Polish).
[25] K. Falkowski. The development of the laboratory model of the gyroscope with the magnetically levitating rotor and its research. Ph.D. Thesis, Warsaw University of Technology, Warsaw, Poland, 1999 (in Polish).
[26] G.F. Franklin, J.D. Powell and A. Emami-Naeini. Feedback control of dynamic systems. Prentice Hall, 2002.
[27] S. Szymaniec. “Measurement paths” used to measure relative vibrations in electric machines. Zeszyty Problemowe – Maszyny Elektryczne, 81:55–60, 2009 (in Polish).
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Authors and Affiliations

Dawid Wajnert
1

  1. Opole University of Technology, Department of Electrical Engineering and Mechatronics, Opole, Poland.

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