Back
 ENG  Vol.5 No.9 B , September 2013
A Method for Assessing Customer Harmonic Emission Level Based on the Iterative Algorithm for Least Square Estimation
Abstract: With the power system harmonic pollution problems becoming more and more serious, how to distinguish the harmonic responsibility accurately and solve the grid harmonics simply and effectively has become the main development direction in harmonic control subjects. This paper, based on linear regression analysis of basic equation and improvement equation, deduced the least squares estimation (LSE) iterative algorithm and obtained the real-time estimates of regression coefficients, and then calculated the level of the harmonic impedance and emission estimates in real time. This paper used power system simulation software Matlab/Simulink as analysis tool and analyzed the user side of the harmonic amplitude and phase fluctuations PCC (point of common coupling) at the harmonic emission level, thus the research has a certain theoretical significance. The development of this algorithm combined with the instrument can be used in practical engineering.
Cite this paper: R. Fan, T. Tan, H. Chang, X. Tong and Y. Gao, "A Method for Assessing Customer Harmonic Emission Level Based on the Iterative Algorithm for Least Square Estimation," Engineering, Vol. 5 No. 9, 2013, pp. 6-13. doi: 10.4236/eng.2013.59B002.
References

[1]   International Electric technical Commission (IEC), “Sub-Committee 77A, Electric magnetic Compatibility (EMC) Part3-6: Limits Assessment of Emission Limits for the Connection of Distorting Installations to MV, HV and EHV Power Systems,” British Standards Institution, United Kingdom, 2008.

[2]   H. Yang, P. Porotte and A. Robert, “Assessing the Harmonic Emission Level from One Particular Customer,” Proceedings of the 3rd International Conference on Power Quality, Vol. 2, No. 8, 1994, pp. 160-166.

[3]   W. A. Omran, H. S. K. EI-Goharey, M. Kazerani and M. M. A. Salama, “Identification and Measurement of Harmonic Pollution for Radial and Nonradial Systems,” IEEE Transactions on Power Delivery, Vol. 24, No. 3, 2009, pp. 1642-1650. http://dx.doi.org/10.1109/TPWRD.2009.2021043

[4]   W. Xu, “Power Direction Method Cannot Be Used for Harmonic Source Detection,” IEEE Power Engineering Society Summer Meeting, 16-20 July 2000, Vol. 2.

[5]   W. Xu and Y. L. Lin, “A Method for Determining Customer and Utility Harmonic Contribution at the Point of Common Coupling,” IEEE Transactions on Power Delivery, Vol. 15, No. 2, 2000.

[6]   C. Li, W. Xu and T. Tayjasanant, “A ‘Critical Impedance’ Based Method for Identifying Harmonic Sources,” IEEE Transactions on Power Delivery, Vol. 19, No. 2, 2004, pp. 671-678. http://dx.doi.org/10.1109/TPWRD.2004.825302

[7]   Y. Xiao, J.-C. Maun, H. B. Mahmoud, T. Detroz and D. Stephane, “Harmonic Impedance Measurement Using Voltage and Current Increments from Disturbing Loads,” 9th International Conference on Harmonics and Quality of Power, Vol. 1, Orlando, 1-4 Oct. 2000, pp. 220-225.

[8]   W. Zhang and H.-G. Yang, “A Method for Assessing Harmonic Emission Level Based on Binary Linear Regression,” Proceedings of the CESS, Vol. 24, No. 6, 2004, pp. 50-53.

[9]   Q. Che, H.-G, Yang, “Assessing the Harmonic Emission Level Based on Robust Regression Method,” Proceedings of the CSEE, Vol. 24, No. 4, 2004, pp. 39-42.

 
 
Top