An Improved Backward/Forward Sweep Power Flow Method Based on a New Network Information Organization for Radial Distribution Systems

Ouali, Saad; Cherkaoui, Abdeljabbar

doi:10.1155/2020/5643410

Cited by 36 publications

(24 citation statements)

References 31 publications

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“…In this study, three types of popular load flow methods, namely current injection method (CIM), BFS [1], DLF [17], were used to validate the proposed load flow method. The CIM results were taken from a study conducted by [1], and results for BFS and DLF were obtained from conducted simulations. The load flow results, which show the absolute voltages on the nodes for IEEE 15 bus system, are presented in Table 4.…”

Section: Results For Ieee Bus Systemsmentioning

confidence: 99%

“…Load flow analysis is a crucial task in power systems control as it helps in the computation of voltages at each node and currents at each branch [1]. The load flow method results carry important information about the power system; many analysis would not be possible without it.…”

Section: Introductionmentioning

confidence: 99%

“…Significant efforts have also been made to improve the BFS and eliminate the need for network renumbering due to the increased number of nodes from the original network. A study by [1] proposed an approach based on BFS in which the network renumbering is eliminated by identifying common nodes, terminal nodes and intermediate nodes followed by the construction of main and derivative matrices. This paper proposes an improved BFS approach for power flow analysis in a radial distribution network.…”

Section: Introductionmentioning

confidence: 99%

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An improved backward/forward sweep power flow method based on network tree depth for radial distribution systems

Kawambwa

Mwifunyi

Mnyanghwalo

et al. 2021

Journal of Electrical Systems and Inf Technol

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This paper presents an improved load flow technique for a modern distribution system. The proposed load flow technique is derived from the concept of the conventional backward/forward sweep technique. The proposed technique uses linear equations based on Kirchhoff’s laws without involving matrix multiplication. The method can accommodate changes in network structure reconfiguration by involving the parent–children relationship between nodes to avoid complex renumbering of branches and nodes. The IEEE 15 bus, IEEE 33 bus and IEEE 69 bus systems were used for testing the efficacy of the proposed technique. The meshed IEEE 15 bus system was used to demonstrate the efficacy of the proposed technique under network reconfiguration scenarios. The proposed method was compared with other load flow approaches, including CIM, BFS and DLF. The results revealed that the proposed method could provide similar power flow solutions with the added advantage that it can work well under network reconfiguration without performing node renumbering, not covered by others. The proposed technique was then applied in Tanzania electric secondary distribution network and performed well.

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Section: Results For Ieee Bus Systemsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An improved backward/forward sweep power flow method based on network tree depth for radial distribution systems

Kawambwa

Mwifunyi

Mnyanghwalo

et al. 2021

Journal of Electrical Systems and Inf Technol

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show abstract

“…Table 2, the use of high tensile light weight stranded Steel Core Galvanised Zinc (SC/GZ) or stranded Steel Core Aluminium Clad (SC/AC) conductors to increase the span distance results in a high line a.c. resistance. Using a MATHCAD software program, the node voltages and branch currents are determined from a Backward/Forward load flow sweep method [21], [22]; where the node voltages, in an initial backward walk from node A2 L2 to A1 T , are kept the same before they are then adjusted in a forward walk keeping the branch currents the same for recursive iterations.…”

Section: Fig 13 a Single Line Swer Distribution System That Is Consmentioning

confidence: 99%

A Concept Smart Switch for Single-Phase Transformer and Reactor Control

Everton¹

2020

Preprint

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Introduced to electrical power networks at the turn of the century, the use of power electronic devices to control and regulate single-phase networks has trailed behind. A likely reason for this outcome is the relative cost of 'smart devices' in a system of low earned revenue. Now a feature of grid modernisation projects, interest in 'smart devices' as a means to extend the useful life of distribution assets, delay capital expenditure, lower operating costs and to improve the supply reliability, is growing. Described in this paper for the control of single-phase transformers and reactors is a concept 'smart switch' that uses a low voltage low power thyristor. Built with a novel magnetic core and winding arrangement, the disconnection and reconnection of a transformer or reactor is controlled by the semiconductor switch. The concept design is demonstrated in this paper for a thermal overload and switched shunt reactor transformer applications.

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“…Autor in [28] suggested a method founded on cuckoo search algorithm (CSA) to detect the right site and dimension of DG and STATCOM in the radial distribution netwoks RDS, the suggested method is tested on several IEEE test systems such as 33 bus and 136 bus, the obtained results were faced up to other approaches already exist, these results indicate that the suggested approach has a precise viewpoint of this crtical issue and causes positive effects on the DN behavior. Autor in [29] presented a load flow algorithm based on the backward/forward sweep approach to determine load flow issues in RDS, the suggested approach can be used in various DN applications. P. Guru et al in [30] used PSO algorithm to investigate the ideal arrangement of DG in IEEE standard 33 bus, the obtained outcomes have also been verified by comparing with the previous work discussed in literature survey.…”

Section: Introductionmentioning

confidence: 99%

Load flow analysis using newton raphson method in presence of distributed generation

Noureddine

Djamel

2021

IJPEDS

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Distributed generations (DG), specially including renewable sources such as wind and sun are offering several opportunities for the currently in existence distribution networks and becoming one of the keys of treatment of its problems. Knowing the effects of each kind of DG on distribution networks is a primordial task because DG impacts differ from one kind to another. In this paper, we have analyzed and compared the effects of two kinds of DG, DG which provides real power only and DG which provides real power and reactive power at the same time connected at the critical bus in DN on the voltage profile, real and reactive power losses. We have proposed Newton Raphson method using Matlab to investigate the impacts of these two kinds of DG on 57-bus IEEE distribution test system. The obtained results have been exposed in detail at the end of this paper.

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An Improved Backward/Forward Sweep Power Flow Method Based on a New Network Information Organization for Radial Distribution Systems

Cited by 36 publications

References 31 publications

An improved backward/forward sweep power flow method based on network tree depth for radial distribution systems

An improved backward/forward sweep power flow method based on network tree depth for radial distribution systems

A Concept Smart Switch for Single-Phase Transformer and Reactor Control

Load flow analysis using newton raphson method in presence of distributed generation

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