Linear State Estimation Based on Measured Quantity Transformation and Calculation of Transmission Losses

Gui Hua Lin; Tao Wang; Yu Ying Wang

doi:10.4028/www.scientific.net/AMM.672-674.1027

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 672-674Linear State Estimation Based on Measured Quantity...

Linear State Estimation Based on Measured Quantity Transformation and Calculation of Transmission Losses

Abstract:

A linear static state estimation on measured quantity transformation is proposed in this paper utilizing the high precision measurements of WAMS. Using transformation of measured quantity, the current measurements of WAMS are transformed into equivalent voltage measurement, and after simplification a constant real number information matrix is obtained, so the decoupling calculation of real part and imaginary part of nodal voltage is realized. The calculation has many advantages such as fast proposed algorithm, high estimation precision and better numerical stability. Finally, the algorithm is applied to the calculation of network loss in theory, the calculation accuracy of transmission loss is improved. The calculation results of IEEE 30-bus test system validate the effectiveness of the proposed method.

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Periodical:

Applied Mechanics and Materials (Volumes 672-674)

Pages:

1027-1031

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.672-674.1027

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Online since:

October 2014

Authors:

Gui Hua Lin*, Tao Wang, Yu Ying Wang

Keywords:

Measured Quantity Transformation, State Estimation, Transmission Losses Calculation, Wide-Area Measurement System (WAMS)

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* - Corresponding Author

References

[1] XU hanping, HOU Jinfeng, SHI Liuzhong. calculation method of power system line losses based on data of state estimation. power system technology, 2003，23(7)：59-62.

Google Scholar

[2] LU Zhigang, LI Shuang, Power system state estimation and theoretical line loss calculation based on direct neural dynamic programming. power system technology, 2008，32(23) : 50-55.

Google Scholar

[3] Phadke A G，Thorp J S，Karimi K J. State estimation with phasor measurements[J]．IEEE Trans on Power Systems，1986，1(1)： 233-241.

DOI: 10.1109/tpwrs.1986.4334878

Google Scholar

[4] LU Zhigang, State Estimation of voltage phasor based on parts of voltage and current phasors measurement, Automation of Electric Power System，2000，24(1)：42-44.

Google Scholar

[5] LI Qiang, ZHOU Jiangyang, YU Erkeng. etc. A Hybrid Algorithm for power system state estimation based on PMU measurement and SCADA measurement. Automation of Electric Power System. 2005，29(19)：31-35.

Google Scholar