Inherent structural characteristic indices of power system networks

“…• Frequency Stability and Control: analogously to the techniques aimed at improving voltage stability that are based on bus VPFs, e.g., [22]- [24], [30], [31], FPFs can be used to determine the buses that are most significant for frequency control, e.g., pilot buses as those defined for voltage control (see, for example, [35] and, more recently, [36]). FPFs can be also utilized for sensitivity analysis, similarly to the participation factors proposed in [27], to determine which rotor speed mostly affect bus frequency deviations.…”

Section: Final Remarks On the Fpfsmentioning

confidence: 99%

“…While these properties have been noticed and exploited in various works, e.g., [30], [31], it has been only recently, that formal proofs of such properties have been found [32]. Note that, ifȲ LL is singular, i.e., no shunt elements are present,F LG can be still defined using the Moore-Penrose pseudo-inverse ofȲ LL .…”

mentioning

confidence: 99%

Frequency Participation Factors

Ortega

Milano

2018

IEEE Trans. Power Syst.

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Abstract-This paper discusses two quantitative and complementary approaches to evaluate the participation of synchronous generators and interconnection buses on local bus frequency variations during electromechanical transients. Both approaches are based on the concept of frequency divider formula recently proposed by the authors on these transactions. A thorough comparison of the two approaches is provided considering several scenarios and three networks, namely the New England 39-bus test system, the all-island 1,479-bus Irish transmission system, and the ENTSO-E 21,177-bus transmission system.

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“…The exact power network equations according to the basic circuit theory laws can be expressed as [6] YV I = (1) where I is the vector of the complex currents V is the vector of the complex nodal voltages and Y is the complex network admittance matrix, thereby taking advantage of the sparsity in the network.…”

Section: A the Inherent Structural Characteristics Theory Approachmentioning

confidence: 99%

Inherent structural characteristics approach for solving loss allocation problems

Alayande

Jimoh

Yusuff

2015

2015 4th International Conference on Electric Power and Energy Conversion Systems (EPECS)

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The solution to the well-known loss allocation problems in interconnected power networks has usually been through power-flow analysis. This power-flow based approach is computationally intensive and the results may not converge for large practical power systems. This paper, therefore, explores an alternative approach to solving this problem using the Inherent Structural Characteristics Theory (ISCT) [6]. The total transmission loss within power network based on both the ISCT and power-flow-based approach is determined, and then used to allocate losses to loads in the network. The results obtained from the two approaches are compared. The ISCT approach, apart from being faster, allocates the total loss within the network to loads in a fairer, equitable and transparent manner. Matlab 2013a is employed as a simulation tool. The sparsity inherent in power networks is explored to reduce the computational intensity and computer memory required. This new approach is tested on a standard IEEE 14-bus system and a practical system of the Nigerian 40-bus network. The results obtained from the simulations show the ISCT approach to be superior.

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Inherent structural characteristic indices of power system networks

Cited by 35 publications

References 22 publications

Visualizing the Electrical Structure of Power Systems

Visualizing the Electrical Structure of Power Systems

Frequency Participation Factors

Inherent structural characteristics approach for solving loss allocation problems

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