Radiation Disturbance of Variable Frequency Winch Drive System in Underground Coal Mines

Abstract:

In order to study the effect of variable frequency drive system upon electromagnetic radiation environment in underground coal mines, the mechanism of electromagnetic radiation from the variable frequency speed regulation system has been analyzed deeply, and the radiated electromagnetic noise from the variable frequency winch system with rated voltage of 1140V in underground coal mines has been measured. The measuring results show that the radiated emission from variable frequency drive system has certain effects on electromagnetic radiation environment in underground coal mines. The maximum radiated E-field strength reaches 123dBμV/m within the range of 9kHz to 20MHz nearby the frequency converter, and radiated E-field strength is no more than 33dBuV/m above 20MHz. Nearby the winch motor, the radiated E-field strength is weak, but the frequency spectrum of radiated E-field noises is more wide, which mainly distributes from 20MHz to 1GHz, but the maximum radiated E-field strength is less than 37dBμV/m above 20MHz.

• Periodical: Applied Mechanics and Materials (Volume 441)
• Pages: 552-556
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.441.552
• Online since: December 2013
• Authors: Hui Chen, Wen Bing Tang, Zhen Guan Cao, Hua Ping Zhou
• Keywords: Coal Mine, Electromagnetic Environment, Radiation Disturbance, Speed Regulation System, Variable Frequency Winch

References

[1] G. W. Chang,S. K. Chen: An Analytical Approach for Characterizing Harmonic and Interharmonic Currents Generated by VSI-fed Adjustable Speed Drives. IEEE Transactions on Power Delivery, Vol. 20(2005), p.2585–2593.

DOI: 10.1109/tpwrd.2005.855487

[2] B. Chen, J. G. Jiang and X. D. Sun: Analysis of EMI Due to Grounding Current in a PWM Inverted-Induction Motor Drive System. Proceedings of the Csee, Vol. 23(2003), p.58–62.

[3] J. Meng, W. M. Ma, L. Zhang, et al.: High Frequency Model of Conducted EMI for PWM Variable-Speed Drive Systems. Proceedings of the CSEE, Vol. 28(2008), p.141–146.

[4] E. Persson: Transient Effects in Application of PWM Inverters to Induction Motors. IEEE Transactions on Industry Applications, Vol. 28(1992), p.1095–1101.

DOI: 10.1109/28.158834

[5] J. Luszcz: Motor Cable Influence on the Converter Fed AC Motor Drive Conducted EMI Emission, 6th Internation Conference Workshop on Compatibility and Power Electronics, 2009, p.386–389.

DOI: 10.1109/cpe.2009.5156065

[6] G. Skibinski, R. Kerkman, D. Leggate, et al.: Reflected Wave Modeling Techniques for PWM AC Motor Drives, Applied Power Electronics Conference and Exposition, 1998, p.1021–1029.

DOI: 10.1109/apec.1998.654023

[7] D. H. Hwang, K.C. Lee, Y. J. Kim, et al.: Voltage Stresses on Stator Windings of Induction Motors Driven by IGBT PWM Inverters, 38th IAS Annual Meeting on Industry Applications, 2003, p.439–444.

DOI: 10.1109/ias.2003.1257537

[8] A. H. Bonnett: Analysis of the Impact of Pulse-Width Modulated Inverter Voltage Waveforms on AC Induction Motors, IEEE Transactions on Industry Applications, Vol. 32(1996), p.386–392.

DOI: 10.1109/28.491488

[9] S. Ogasawara, H. Ayano and H. Akagi: Measurement and Reduction of EMI Radiated by a PWM Inverter-fed AC Motor Drive System, IEEE Transactions on Industry Applications, Vol. 33(1997), p.1019–1026.

DOI: 10.1109/28.605744

[10] J. P. Sun, D.W. Feng, Z.W. Zheng, et al.: Effect of Electrical Fast Transient Burst upon the Electromagnetic Environment in a Mine Tunnel, Transactions of Beijing Institute of Technology, Vol. 29 No. 4(2009), pp.336-338, 355.

[11] J. P. Sun, Z. W. Zheng, D. W. Feng, et al.: Influence of Pump Motor on the Electromagnetic Environment in the Mine Pump House. Journal of China Coal Society, Vol. 35 No. 2(2010), pp.349-352.

[12] R. Thomas, F. Li and C.: Garrett, Prediction of Radiated EMI from High Frequency Power Converters, Eighth International Conference on Power Electronics and Variable Speed Drives, 2000, p.80–85.

DOI: 10.1049/cp:20000224