Optimal location of network devices using a novel inherent network topology based technique

Sikiru, Tajudeen H.; Jimoh, A.A.; Agee, John T.

doi:10.1109/afrcon.2011.6071982

Cited by 18 publications

(15 citation statements)

References 11 publications

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“…On the other hand, for topologically weak networks, the compensators should be located on nodes farthest from the generators, (i.e. on buses associated with the smallest eigenvalues) [20,24] to ensure that the networks would be within the acceptable voltage limits.…”

Section: Case Study and Discussion Of Resultsmentioning

confidence: 99%

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Reactive Power Reserve Improvement Using Power Systems Inherent Structural Characteristics

Sikiru¹,

Jimoh²,

Hamam³

et al. 2013

EPE

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This paper considers the use of the inherent structural characteristics of power system networks for improving the reactive power reserve margins for both topologically weak and strong networks. The inherent structural characteristics of the network are derived from the Schur complement of the partitioned Y-admittance matrix using circuit theory representations. Results show that topologically strong networks, operating close to the upper voltage limit could be made to increase their loadability margin by locating reactive power compensators close to generator sources, whereas topologically weak (ill conditioned) networks could be made to operate within the feasible operating limits by locating reactive power compensators on buses farther from generator sources.

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Section: Case Study and Discussion Of Resultsmentioning

confidence: 99%

“…Buses associated with the smallest eigenvalues indicate where reactive power support are required [20]. Hence, to improve the overall voltage profile these buses are suitable locations for reactive power compensators [24].…”

Section: L mentioning

confidence: 99%

Reactive Power Reserve Improvement Using Power Systems Inherent Structural Characteristics

Sikiru¹,

Jimoh²,

Hamam³

et al. 2013

EPE

Self Cite

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“…The Y-admittance matrix captures the nature of the structural interconnection of buses and the value of the line impedance between them [6], [7]. The current flow in the network and the bus voltages are governed by circuit theorem, mathematically represented as…”

Section: Inherent Structural Characteristics and Classification Omentioning

confidence: 99%

“…The direct consequence is that transmission network determines the amount of power that could be transported from generating stations, even if the generating stations have higher supply capacity [3]. Hence, the level of load demand that could be met in a power system network directly depends on the inherent structural characteristics [4]- [7] of the network. These characteristics do not only affect the amount of transferable power, it also determines the locations and sizes of the other network devices such as reactive power compensators [6], harmonic filters [5], and new generator location [7] that could boost the operational efficiency of a network.…”

Section: Introductionmentioning

confidence: 99%

“…Hence, the level of load demand that could be met in a power system network directly depends on the inherent structural characteristics [4]- [7] of the network. These characteristics do not only affect the amount of transferable power, it also determines the locations and sizes of the other network devices such as reactive power compensators [6], harmonic filters [5], and new generator location [7] that could boost the operational efficiency of a network. This paper discusses the identification and classification of power system networks based on their structural characteristics.…”

Section: Introductionmentioning

confidence: 99%

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Classification of networks based on inherent structural characteristics

Sikiru

Jimoh

Hamam

et al. 2012

2012 Sixth IEEE/PES Transmission and Distribution: Latin America Conference and Exposition (T&D-La)

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This paper seeks to identify and classify power system networks based on their inherent definitive structural property. The participation between the load buses is observable from the eigenvectors obtained from a Schur complement of the Y-admittance matrix. This is used to classify power system networks as either topologically strong or weak. Results show that in a topologically weak network, load voltages are below the nominal voltage limit. Conversely, in a topologically strong network they are above the nominal limit.

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A study of the effect of power electronic system interaction with power system voltage stability

Adebayo

Jimoh

Yusuff

2018

Int Trans Electr Energ Syst

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Summary Voltage stability has of recent been a subject of growing concern to power system utilities. In this paper, 2 techniques, one based on topological structure of power networks and the other on the conventional power flow solution, are proposed for voltage stability analysis. The network structural characteristics theory participation factor proposed is formulated to identify the weak bus of the system. The voltage stability enhancement is achieved through the incorporation of power electronic–based thyristor‐controlled series compensator device. This is done by modifying the admittance matrix and network structural characteristics theory participation factor formulated to incorporate the effect of variable reactance of thyristor‐controlled series compensator device. The second suggested approach based on power flow is also investigated. The results of both techniques are compared with the conventional approaches. The results of simulations obtained show that voltage stability enhancement can significantly be achieved from the network structural point of view, as it saves time and reduces system computational burden.

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Optimal location of network devices using a novel inherent network topology based technique

Cited by 18 publications

References 11 publications

Reactive Power Reserve Improvement Using Power Systems Inherent Structural Characteristics

Reactive Power Reserve Improvement Using Power Systems Inherent Structural Characteristics

Classification of networks based on inherent structural characteristics

A study of the effect of power electronic system interaction with power system voltage stability

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