IMPROVING THE POWER SYSTEM STATE ESTIMATION ALGORITHM BASED ON THE PMUS PLACEMENT AND VOLTAGE ANGLE RELATIONSHIPS

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SEDIGHI A.R.; SAYAF M.; TABAN M.R.

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Journal: NASHRIYYAH -I MUHANDISI -I BARQ VA MUHANDISI -I KAMPYUTAR -I IRAN, A- MUHANDISI -I BARQ Year:2018 | Volume:16 | Issue:2 Page(s): 135-141

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Title

IMPROVING THE POWER SYSTEM STATE ESTIMATION ALGORITHM BASED ON THE PMUS PLACEMENT AND VOLTAGE ANGLE RELATIONSHIPS

Author(s)

SEDIGHI A.R. | SAYAF M. | TABAN M.R. | Issue Writer Certificate

Keywords

LOAD ESTIMATIONQ1

PHASOR MEASUREMENT UNITSQ1

PMU PLACEMENTQ1

STATE ESTIMATIONQ2

VOLTAGE ANGLEQ1

Abstract

To optimize the operation of power systems, monitoring of network state variables is important. Because these variables play an important role in improving economic efficiency, network reliability and analyze system status. Therefore, STATE ESTIMATION algorithm have been used to determine an accurate estimate of state variables with limited measurements. Since modern measuring devices, such as PMUs, in addition to the measurement of electrical quantities are able to measure bus VOLTAGE ANGLE, in this paper, a new method is proposed to obtain a more accurate estimate of all network variable. The proposed algorithm determines number and location of the measuring devices (PMUs) in such a way that state variables and electrical quantities can be obtained in the most accurate estimate. Increasing the STATE ESTIMATION calculations accuracy is due to the use of the derivatives of the buses VOLTAGE ANGLE equations along with the STATE ESTIMATION relations. Finally, the calculation of the STATE ESTIMATION is performed using the least squared weighted method (WLS). The calculations performed on the IEEE 14 bus network are done using MATLAB and MATPOWER software.The results show that the proposed method has been successful in increasing the accuracy of estimating state variables and reducing the number and proper location of PMUs.

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APA: Copy

SEDIGHI, A.R., SAYAF, M., & TABAN, M.R.. (2018). IMPROVING THE POWER SYSTEM STATE ESTIMATION ALGORITHM BASED ON THE PMUS PLACEMENT AND VOLTAGE ANGLE RELATIONSHIPS. NASHRIYYAH -I MUHANDISI -I BARQ VA MUHANDISI -I KAMPYUTAR -I IRAN, A- MUHANDISI -I BARQ, 16(2 ), 135-141. SID. https://sid.ir/paper/228122/en

Vancouver: Copy

SEDIGHI A.R., SAYAF M., TABAN M.R.. IMPROVING THE POWER SYSTEM STATE ESTIMATION ALGORITHM BASED ON THE PMUS PLACEMENT AND VOLTAGE ANGLE RELATIONSHIPS. NASHRIYYAH -I MUHANDISI -I BARQ VA MUHANDISI -I KAMPYUTAR -I IRAN, A- MUHANDISI -I BARQ[Internet]. 2018;16(2 ):135-141. Available from: https://sid.ir/paper/228122/en

IEEE: Copy

A.R. SEDIGHI, M. SAYAF, and M.R. TABAN, “IMPROVING THE POWER SYSTEM STATE ESTIMATION ALGORITHM BASED ON THE PMUS PLACEMENT AND VOLTAGE ANGLE RELATIONSHIPS,” NASHRIYYAH -I MUHANDISI -I BARQ VA MUHANDISI -I KAMPYUTAR -I IRAN, A- MUHANDISI -I BARQ, vol. 16, no. 2 , pp. 135–141, 2018, [Online]. Available: https://sid.ir/paper/228122/en

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