Topological system method of formation of transformer transformation coefficients

Akhmetbayev, Dauren; Dzhandigulov, Abdigali R.; Bystrova, Svetlana

doi:10.1051/e3sconf/202021601087

Cited by 3 publications

(3 citation statements)

References 6 publications

(6 reference statements)

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“…It is known that all currents of circuit chords are independent and can be removed from the circuit after specification of the nodal driving currents according to formula (4). After that, the nodal stresses are determined, according to a simplified scheme, in the form [10,11]:…”

Section: Formation Of Simplified Steady State Modelsmentioning

confidence: 99%

Simplified topological algorithm for forming a steady mode of electric power system

Jandigulov,

Rauan,

Bystrova

2023

E3S Web Conf.

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The paper presents the possibility of simplifying the algorithms for forming the parameters of the steady state mode of a complex electrical network, using the independence of the currents of its equivalent circuit. In this case, all independent currents of a complex circuit of an electrical network must be found in advance, which is, in the general case, a rather difficult task, since it requires additional calculations of the steady state. The matrix of current distribution coefficients, formalized on the basis of the topology of the electrical network, can be used to directly determine the currents in the branches of its equivalent circuit. This allows you to preliminarily estimate the values of pre-selected independent currents in the circuit branches of a complex electrical network and determine its simplified design scheme. In this case, a calculation model is established, consisting of some trees of a complex electrical network graph.

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Section: Formation Of Simplified Steady State Modelsmentioning

confidence: 99%

Simplified topological algorithm for forming a steady mode of electric power system

Jandigulov,

Rauan,

Bystrova

2023

E3S Web Conf.

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“…proposed an analytical approach to determining the topological content of the matrix of current distribution coefficients based on the properties of possible graph trees, without dividing the network into two parts [16,17]. In [18], an efficient algorithm for directed search and determination of the weights of possible graph trees is implemented without involving previously defined trees.…”

Section: Introductionmentioning

confidence: 99%

“…Studies conducted to analyze the methods and algorithms for searching for possible trees of a complex graph led to the development of optimal algorithms based on the principles of diakoptics [18]. The basis of the idea of optimization is the construction of special classes of trees.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Algorithms of the Topological Model of the Steady Mode of Electric Power Systems

Akhmetbaev

Dzhandigulov

Akhmetbaev³

et al. 2023

E3S Web of Conf.

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The work improves the algorithms for the formation of a steady state mode of electric power systems, developed on the basis of a topological model. The topological model is developed on the basis of the theory of directed graphs using a matrix of current distribution coefficients. Algorithms for the formation of a steady state provide for conducting calculations with respect to all independent nodes of a complex network of a power system, which leads to an increase in the number of operations of iterative processes. The paper proposes a transformation of the topological model of the system, in which, in the process of solving the transformed model, iteration is performed only over nodes that have non-zero load or generation powers. The rest of the nodal stresses are simply calculated through the stresses of the above nodes. The resulting transformation makes it possible to reduce not only the number of operations in each iteration, but also the number of iterations itself. In particular, when studying a 5-node test circuit [1], instead of four complex equations of the original system, it is sufficient to iterate only one equation (reduction by 25%), and for the New England test 39-node circuit [2], instead of 38 equations It is enough to iterate over 26 equations (32% reduction).

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Improving Algorithms for Searching for Trees of Directed Graphs of Electrical Power Systems

Akhmetbaev,

Jandigulov,

Akhmetbaev

2024

Power Technol Eng

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Topological system method of formation of transformer transformation coefficients

Cited by 3 publications

References 6 publications

Simplified topological algorithm for forming a steady mode of electric power system

Simplified topological algorithm for forming a steady mode of electric power system

Improvement of Algorithms of the Topological Model of the Steady Mode of Electric Power Systems

Improving Algorithms for Searching for Trees of Directed Graphs of Electrical Power Systems

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