Power transfer allocation for open access using graph theory-fundamentals and applications in systems without loopflow

Wu, F.F.; Ni, Yixin; Ping, Wei

doi:10.1109/59.871714

Cited by 213 publications

(107 citation statements)

References 3 publications

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“…Usually in power system, an equivalent circuit from the viewpoint of power balance at a bus of interest can be constructed with three elements; inner and outer generators, loads and transmission lines [17][18]. Inner generators are connected to bus directly, and outer generators are connected remotely through some transmission lines connected to the bus of interest.…”

Section: Power Amount Supplied To a Busmentioning

confidence: 99%

“…This paper proposes a methodology for assessing the reliability requirement and the economic impact of TNEP which is tried as simply as possible. The concepts of inner and outer generators are introduced and two power distribution factors are proposed for outer generators and transmission lines, in addition to reorganization of power system method which is introduced to calculate the contributions of individual generators and loads to line flows in reference [17][18]. System operating state method [11][12] is modified in this paper with the corresponding state reliability indices according to the expected capacities and probabilities for the cases of normal and (N-1) contingencies, respectively, in order to make the choice of candidates among the transmission lines connected between sufficient and insufficient buses which are defined by state reliability indices.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Transmission Network Expansion Planning Using Reliability and Economic Assessment

Kim¹,

Son²,

Kim³

2015

Journal of Electrical Engineering and Technology

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-This paper presents a probabilistic approach of reliability evaluation and economic assessment for solving transmission network expansion planning problems. Three methods are proposed for TNEP, which are reorganizing the existing power system focused on the buses of interest, selecting candidates using modified system operating state method with healthy, marginal and at-risk states, and finally choosing the optimal alternative using cost-optimization method. TNEP candidates can be selected based on the state reliability such as sufficient and insufficient indices, as proposed in this paper. The process of economic assessment involves the costs of construction, maintenance and operation, congestion, and outage. The case studies are carried out with modified IEEE-24 bus system and Jeju island power system expansion plan in Korea, to verify the proposed methodology.

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Section: Power Amount Supplied To a Busmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Transmission Network Expansion Planning Using Reliability and Economic Assessment

Kim¹,

Son²,

Kim³

2015

Journal of Electrical Engineering and Technology

View full text Add to dashboard Cite

show abstract

“…There have been some graph based methods to find the contribution of each generation unit in the power flow of each line, such as [9], where AC load flow has been used to analyze the network. It is a negative aspect of this method because it cannot analyze the network without the load flow.…”

Section: Introductionmentioning

confidence: 99%

System Vulnerability Analysis Using Graph Pathfinding Strategies in Partitioned Networks

Rad¹,

Gharghabi²,

Rahmani³

et al. 2017

JPEE

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In this paper, a new method has been introduced to find the most vulnerable lines in the system dynamically in an interconnected power system to help with the security and load flow analysis in these networks. Using the localization of power networks, the power grid can be divided into several divisions of sub-networks in which, the connection of the elements is stronger than the elements outside of that division. By using our proposed method, the probable important lines in the network can be identified to do the placement of the protection apparatus and planning for the extra extensions in the system. In this paper, we have studied the pathfinding strategies in most vulnerable line detection in a partitioned network. The method has been tested on IEEE39-bus system which is partitioned using hierarchical spectral clustering to show the feasibility of the proposed method.

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“…The specific interpretation given to the proportionate sharing rule is that net incoming resource (e.g., MWs from a generator in the generation tracing problem) is shared among outflows in a proportionate manner. The two commonly referred approaches are: Linear equations based approach [1] and graph theoretic approach [3]. The qualitative difference between the above two approaches is that the graph theoretic approach fails when circular flows are present in the system.…”

mentioning

confidence: 99%

“…The method is suitable for large power systems. Graph theoretic approach is suggested in [3]. This method is more intuitive and easy to understand.…”

mentioning

confidence: 99%

Multiple solutions approach to tackle circular flows in real power tracing

Abhyankar

Khaparde

Soman

2006

2006 IEEE Power Engineering Society General Meeting

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Abstract-Real power tracing algorithms were invented to find the network usage by various generators and loads. Two versions of real power tracing are popularly quoted: Linear equations based and Graph theoretic based. Both the methods make use of proportional sharing assumption. When the directed graph of power flow is cyclic, the graph theoretic approach is not able to proceed further, while the linear equations based approach may or may not fail depending on the distribution matrix structure. In this paper, we propose a new paradigm of real power tracing algorithms in which we show that the tracing problem can be formulated as a linear constrained multi-commodity network flow optimization problem. By exploiting multiplicity of solution space in real power tracing, it is shown that the proposed method converges to a solution even in the presence of circular flows by virtue of its constraint modeling. Results on practical data of Western Regional Grid of India demonstrate the usefulness of the method.

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Power transfer allocation for open access using graph theory-fundamentals and applications in systems without loopflow

Cited by 213 publications

References 3 publications

Transmission Network Expansion Planning Using Reliability and Economic Assessment

Transmission Network Expansion Planning Using Reliability and Economic Assessment

System Vulnerability Analysis Using Graph Pathfinding Strategies in Partitioned Networks

Multiple solutions approach to tackle circular flows in real power tracing

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