Weak Bus-Oriented Installation of Phasor Measurement Unit for Power Network Observability

2017 ◽  
Vol 18 (5) ◽  
Author(s):  
Rohit Babu ◽  
Biplab Bhattacharyya
Keyword(s):  
New England ◽  
Stability Index ◽  
Load Flow ◽  
Phasor Measurement Unit ◽  
Electrical Network ◽  
Measurement Unit ◽  
Power Network ◽  
Electrical Grid ◽  
Phasor Measurement ◽  
Weak Bus

AbstractPhasor measurement unit (PMU) is a GPS-based monitoring equipment employed for the improvement of the stability and reliability of the electrical grid. In this work, an optimal PMU placement has been considered to utilize the least number of units in order to make the power network fully observable. Further, this article also suggests to not only determine the minimal number and optimal locations of PMUs but also installation of the maximum number of PMUs on the weakest bus in an electrical network. Thus, the weak bus based on line stability index utilizing load flow measurement is determined. Then a novel numerical methodology which depends upon binary integer linear programming, constrained by weak bus measurement is proposed in this paper. Also, the effect of a single PMU loss considering weak buses is shown. The developed approach has been conducted on standard IEEE -14, -118, -300 and New England 39- bus test systems. Finally, obtained results and comparison with different weak bus methodologies are shown and examined.

scholarly journals Weak bus-constrained PMU placement for complete observability of a connected power network considering voltage stability indices

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Rohit Babu ◽  
Saurav Raj ◽  
Biplab Bhattacharyya
Keyword(s):  
New England ◽  
Voltage Stability ◽  
Programming Model ◽  
Stability Index ◽  
Load Flow ◽  
Electrical Network ◽  
Power Network ◽  
Measurement Units ◽  
Pmu Placement ◽  
Weak Bus

AbstractPhasor measurement units (PMUs) are preferred for installation at weak buses in a power network. Therefore, the weak buses need to be located and the strategic locations of PMUs identified to ensure network observability. Thus, the primary aim of this work is to identify the placements of the maximum number of PMUs installed at the weak buses in the electrical network. The voltage collapse proximity indicator, line stability index, fast voltage stability index, and a new voltage stability indicator utilizing load flow measurement are used to determine the weak buses. A novel deterministic methodology based on a binary-integer linear programming model is then proposed to determine the optimal locations of PMUs. The effect of a single PMU outage considering the weak buses is also demonstrated. The effectiveness of the developed approach is tested and validated on the standard IEEE 14-, 118-, 300-, and New England 39-bus systems. The obtained results are also compared to those using different weak bus methodologies.

scholarly journals Optimization of Phasor Measurement Unit (PMU) Placement: A Review

2021 ◽  
Vol 7 (4) ◽  
pp. 9-13
Author(s):  
Rachana Pandey ◽  
◽  
Dr. H.K. Verma ◽  
Dr. Arun Parakh ◽  
Dr. Cheshta Jain Khare ◽  
...  
Keyword(s):  
Power Systems ◽  
Phasor Measurement Unit ◽  
Measurement Unit ◽  
Power Network ◽  
Placement Problem ◽  
Electrical Grid ◽  
Phasor Measurement ◽  
Huge Data ◽  
Pmu Placement ◽  
Optimal Pmu Placement

In today’s world, a Phasor Measurement Unit (PMU) is a crucial component of our power network for managing, controlling, and monitoring. PMU can provide synchronized voltage current, and frequency measurements in real time. We can't put a PMU in every bus in the electrical grid because it's not viable from a productivity and economic standpoint, and it's also not practical for handling huge data. As a result, it's critical to reduce the amount of PMU in the power network while also increasing the power network's observability. The optimal PMU placement problem is solved using a variety of methodologies. The paper's main goal is to provide a brief overview of synchrophasor technology, phasor measurement units (PMU), and optimal PMU placement in order to reduce the number of PMUs in the system while maintaining complete observability and application in today's power systems.

scholarly journals A Strategic and Significant Method for the Optimal Placement of Phasor Measurement Unit for Power System Network

Symmetry ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1174
Author(s):  
Maveeya Baba ◽  
Nursyarizal B. M. Nor ◽  
M. Aman.Sheikh ◽  
Muhammad Irfan ◽  
Mohammad Tahir
Keyword(s):  
Power System ◽  
New England ◽  
Advanced Technology ◽  
Phasor Measurement Unit ◽  
Optimal Placement ◽  
Measurement Unit ◽  
Manufacturing Cost ◽  
Symmetry Approach ◽  
Phasor Measurement ◽  
Optimum Placement

Currently the new state of power system relies on a precise monitoring of electrical quantities such as voltage and current phasors. Occasionally, its operation gets disturbed because of the flicking in load and generation which may result in the interruption of power supply or may cause catastrophic failure. The advanced technology of phasor measurement unit (PMU) is introduced in the late 1990s to measure the behavior of power system more symmetrically, accurately, and precisely. However, the implementation of this device at every busbar in a grid station is not an easy task because of its expensive installation and manufacturing cost. As a result, an optimum placement of PMU is much needed in this case. Therefore, this paper proposes a new symmetry approach of multiple objectives for the optimum placement of PMU problem (OPPP) in order to minimize the installed number of PMUs and maximize the measurement redundancy of the network. To overcome the drawbacks of traditional techniques in the proposed work a reduction and exclusion of pure transit node technique is used in the placement set. In which only the strategic, significant, and the most desirable buses are selected without considering zero injection buses (ZIBs). The fundamental novelty of the proposed work considers most importantly the reduction technique of ZIBs from the optimum PMU locations, as far as the prior approaches concern almost every algorithm have taken ZIBs as their optimal placement sets. Furthermore, a PMUs channel limits and an alternative symmetry location for the PMUs placement are considered when there is an outage or PMUs failure may occur. The performance of the proposed method is verified on different IEEE-standard such as: IEEE-9, IEEE-14, IEEE-24, IEEE-30, IEEE-57, IEEE-118, and a New England-39 bus system. The success of the proposed work was compared with the existing techniques’ outcomes from the literature.

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