A New Method for Visual Real-Time Monitoring of Low Frequency Oscillation

DOI: 10.4236/sgre.2015.64006   PDF   HTML   XML   2,950 Downloads   3,403 Views   Citations


Visual real-time monitoring is the premise of low frequency oscillation control in power grids. This paper showed a visual method for the control center of power grids to monitor low frequency oscillation. It processed the PMU real-time data with incomplete S-transform, and converted the waveforms to two-dimensional time-frequency figures which showed the initial time, frequency and amplitude of each low frequency oscillation mode directly. GPU was used to show figures and calculate FFT with the purpose of improving calculation efficiency. The results of practical cases show that the real-time characters of low frequency oscillation can be identified availably by this visualization real-time monitoring method which is helpful and suitable for practical application.

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Wen, B. , Li, S. , Zhou, C. , Luo, J. and Wang, F. (2015) A New Method for Visual Real-Time Monitoring of Low Frequency Oscillation. Smart Grid and Renewable Energy, 6, 59-66. doi: 10.4236/sgre.2015.64006.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Zhu, F., Zhao, H.-G., Liu, Z.-H., et al. (2007) The Influence of Large Power Grid Interconnected on Power System Dynamic Stability. Proceedings of the CSEE, 27, 1-7.
[2] Liang, S.-Y., Li, M., Li, P. and Chen, G. (2007) Algorithm of Real-Time Detection Low-Frequency Oscillation in Power System Base on the SCADA Data. Southern Power System Technology, 1, 40-42.
[3] Cheng, Y.-F., Zhang, X.-R. and Lu, C. (2014) Research Progress of the Application of Wide Area Measurement Technology in Power System. Power System Protection and Control, 42, 145-153.
[4] Xu, S.-K., Xie, X.-R. and Xin, Y.-Z. (2005) Present Application Situation and Development Tendency of Synchronous Phasor Measurement Technology Based Wide Area Measurement System. Power System Technology, 29, 44-49.
[5] Wu, H.-X. and Chang, Y. (2008) Advance of Monitor and Control of Low Frequency Oscillation Based on WAMS. High Voltage Engineering, 34, 1737-1744.
[6] Stockwell, R.G., Mansinha, L. and Lowe, R.P. (1996) Localization of the Complex Spectrum: The S Transform. IEEE Transactions on Signal Processing, 44, 998-1001.
[7] Zhang, J., He, Z.-Y. and Jia, Y. (2011) Fault Line Identification Approach Based on S-Transform. Proceedings of the CSEE, 31, 109-115.
[8] Yi, J.-L., Peng, J.-C. and Tan, H.-S. (2011) A Summary of S-Transform Applied to Power Quality Disturbances Analysis. Power System Protection and Control, 39, 141-147.
[9] Yi, J.-L., Peng, J.-C. and Tan, H.-S. (2009) Detection Method of Power Quality Disturbances Using Incomplete S-Transform. High Voltage Engineering, 35, 2562-2567.
[10] Liu, Q., Zhou, L.-W. and Lu, W.-G. (2012) Localization and Identification of Transient Power Quality Disturbances Based on Generalized S-Transform. Power System Protection and Control, 40, 60-65.
[11] Tang, Q., Teng, Z.-S., Gao, Y.-P. and Zhou, Y.B.. (2012) Voltage Flicker Measurement Using Square Demodulation Method Based on S-transform. Proceedings of the CSEE, 32, 60-67.
[12] Chen, L., Wang, S. and Kong, W.-G. (2014) Method to Identify Composite Voltage Sag Disturbance Sources Based on Generalized S-Transform. Power System Protection and Control, 42, 27-33.
[13] Chen, X.-H., He, Z.-H. and Huang, D.-J. (2008) Generalized S Transform and Its Time-frequency Filtering. Signal Processing, 24, 28-31.
[14] Brandon, L.D., Boyd, C. and Govindaraju, N. (2008) Fast Computation of General Fourier Transforms on GPUs. IEEE International Conference on Multimedia and Expo, Hannover, 23-26 June 2008, 5-8.
[15] Zhao, L.-L., Zhang, S.-B., Zhang, M. and Yao, T. (2011) High Performance FFT Computation Based on CUDA. Application Research of Computers, 28, 1556-1559.

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