A new approach for designing of power system protection

Madani, S.M.; Rijanto, H.

doi:10.1049/cp:19970031

Cited by 4 publications

(3 citation statements)

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“…This did not require the computation of all possible loops in the circuit and also did not require exponential time but settled for suboptimal solutions. This approach is extended by Madani and Rijanto in [12] and [13]. In [14], Madani and Rijanto have tried to improve their algorithm by using the concept of partitioning graphs into the forest.…”

Section: Introductionmentioning

confidence: 99%

Computation of Optimal Break Point Set of Relays—An Integer Linear Programming Approach

Gajbhiye

Soman

2007

IEEE Trans. Power Delivery

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Abstract-We propose an integer linear programming (ILP) formulation for the minimum relay break point set (BPS) computation. Subsequently, in the ILP framework, we propose an alternate maximum-independent relay BPS formulation with the intention of minimizing dependency within the BPS. We show that 1) in practice, the relaxed version of the ILP suffices to obtain an integral vertex and 2) the relaxed version of the ILP can be efficiently solved by the dual-simplex method. The performance of the proposed algorithm is compared and contrasted with existing algorithms. Case studies on various test systems show the efficacy of the proposed approach.Index Terms-Greedy algorithms, integer linear programming, minimum break point set (MBPS), NP-complete problem.

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Section: Introductionmentioning

confidence: 99%

Computation of Optimal Break Point Set of Relays—An Integer Linear Programming Approach

Gajbhiye

Soman

2007

IEEE Trans. Power Delivery

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“…The expert system in [8] develops a method for obtaining an optimal design in protection. The design procedure starts by using the simplest protection function for each installed protection devices in the nodes of the network.…”

Section: Introductionmentioning

confidence: 99%

The Performance Specification of Transmission Line Protection Using a Knowledge-Based Approach

El-Arroudi

Joós

McGillis

et al. 2004

IEEE Trans. Power Delivery

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This paper introduces an automated approach to transmission line protection design for implementation in the form of a performance specification. The need for automation is the result of the increased complexity of interconnected power systems and despite numerous proprietary computer programs, the analysis of power system behavior requires significant engineering time and effort. Many scenarios have to be investigated before selecting and setting a protective relay and its equipment. By automating the running of the various computer programs and analyzing the results in a specific manner, the design scenarios can be investigated relatively quickly, cover all possible cases, remove protection design redundancy, preserve protection design methods, and assure consistency in protection system design. Additionally, by changing the system loading to some future anticipated value, it can be determined if specified relays and their equipment can be adjusted or will have to be replaced. It is also clear that such a design tool is useful in training system protection design engineers.Index Terms-Knowledge-based system, power system protection, power system relaying, power systems.

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“…These dependencies among the relays can be displayed by the diagram shown in Fig. 2, the so-called dependency diagram [6]. In this diagram, directed edges (directed lines) denote the primary-backup relations between the relays.…”

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confidence: 99%