Towards Unique Circuit Synthesis of Power Transformer Winding Using Gradient and Population Based Methods

Reddy, Rajesh; Shah, Krupa; Kallamadi, Manjunath

doi:10.1109/tla.2023.10068837

Cited by 4 publications

(8 citation statements)

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“…The OF plays a key role in the convergence. In some literatures, the OF is considered as a difference between the measured and the estimated FRA magnitude (Reddy et al, 2023;Shintemirov et al, 2010). Whereas, several literatures have used the total inductance as an OF (Mukherjee and Satish, 2017;Chanane et al, 2019;Chanane and Belazzoug, 2021;Mukherjee and Satish, 2012).…”

Section: Objective Functionmentioning

confidence: 99%

“…The proposed algorithm in the flowchart of Figure 2 has been successfully applied on a real transformer winding model (Reddy et al, 2023). It had a single-phase, two-winding transformer with iron-core.…”

Section: First Case Studymentioning

confidence: 99%

“…The LV winding has two layers. The height, inner diameter, and outer diameter of the HV and the LV windings were 545 mm, 255 mm, 307 mm and 595 mm, 183 mm 217 mm, respectively (Reddy et al, 2023. FRA was performed to the model of winding. The tested winding could be modeled adequately using the ELNM of Figure 1.…”

Section: First Case Studymentioning

confidence: 99%

“…The proposed methodology has been validated on a second real transformer winding model with 15 MVA, 66/11.55KV, the primary winding is a disc-type HV, the secondary one is a disc-type LV (Reddy et al, 2023). FRA was performed to the model of winding from where the interconnected taps are braced to get the entire HV winding.…”

Section: Second Case Studymentioning

confidence: 99%

“…This advanced demand requires additional interpretation of FRA data. One way to attempt this goal is to synthesis an electrical ladder network model (ELNM) parameters for a transformer winding COMPEL 43,1 (Mukherjee and Satish, 2012;Reddy et al, 2023;Biswas and Satish, 2019;Ren et al, 2021). As such, several electrical models have been synthesized using analytical calculation method (Biswas and Satish, 2019;Abeywickrama et al, 2006) and finite elements (Abu-Siada et al, 2019;Dawood et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Toward unique electrical ladder network model synthesis of a transformer winding high-frequency modeling using K-means and metaheuristic-based method

Chanane,

Houassine

2024

COMPEL

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Purpose Although, numerous optimization algorithms have been devoted to construct an electrical ladder network model (ELNM), they suffer from some frail points such as insufficient accuracy as well as the majority of them are unconstrained, which result in optimal solutions that violate certain security operational constraints. For this purpose, this paper aims to propose a flexible-constraint coyote optimization algorithm; the novelty lies in these points: penalty function is introduced in the objective function to discard any unfeasible solution, an advanced constraint handling technique and empirical relationship between the physical estimated parameters and their natural frequencies. Design/methodology/approach Frequency response analysis (FRA) is very significant for transformer winding diagnosis. Interpreting results of a transformer winding FRA is quite challenging. This paper proposes a new methodology to synthesize a nearly unique ELNM physically and electrically coupled for power transformer winding, basing on K-means and metaheuristic algorithm. To this end, the K-means method is used to cluster the setting of control variables, including the self-mutual inductances/capacitances, and the resistances parameters. Afterward, metaheuristic algorithm is applied to determine the cluster centers with high precision and efficiency. Findings FRA is performed on a power transformer winding model. Basing on the proposed methodology, the prior knowledge in selecting the initial guess and search space is avoided and the global solution is ensured. The performance of the abovementioned methodology is compared using evaluation expressions to verify its feasibility and accuracy. Originality/value The proposed method could be generalized for diagnosis of faults in power transformer winding.

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Section: Objective Functionmentioning

confidence: 99%

Section: First Case Studymentioning

confidence: 99%

Section: First Case Studymentioning

confidence: 99%

Section: Second Case Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Toward unique electrical ladder network model synthesis of a transformer winding high-frequency modeling using K-means and metaheuristic-based method

Chanane,

Houassine

2024

COMPEL

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Derivation of transformer winding equivalent circuit by employing the transfer function obtained from frequency response analysis data

Zhang

2024

IET Electric Power Appl

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Precisely interpreting frequency response analysis (FRA) curves is crucial when investigating mechanical malfunctions in power transformer windings (TWs). However, many conventional explanations of FRA features cannot be validated by an equivalent circuit (EC) that represents winding structures using resistance, inductance, and capacitance components in a ladder network. Incorrect interpretation can lead to misdiagnosis and confusion in asset management. Previous ECs are often proposed by analysing winding structures without rigorous verification compared to the corresponding FRA data. The specific EC is acquired using the transfer function (TF) derived from the measured FRA data. This allows for the establishment of the relationship between TW FRA curves, TF equations, and EC topologies. The precise interpretation of FRA curves can be achieved by closely observing the FRA curves created from TFs and ECs. The remarkable similarity between the measured and modelled FRA curves verifies the authenticity of the derived ECs. This significant achievement clarifies many misunderstandings regarding FRA and represents a substantial advancement in FRA technology.

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Capacity Detection Algorithm of Uninterrupted Special Transformer Based on Artificial Immunity and Multi-Object Optimization

Sun,

Liu,

et al. 2023

2023 3rd International Conference on Electrical Engineering and Control Science (IC2ECS)

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Towards Unique Circuit Synthesis of Power Transformer Winding Using Gradient and Population Based Methods

Cited by 4 publications

References 0 publications

Toward unique electrical ladder network model synthesis of a transformer winding high-frequency modeling using K-means and metaheuristic-based method

Toward unique electrical ladder network model synthesis of a transformer winding high-frequency modeling using K-means and metaheuristic-based method

Derivation of transformer winding equivalent circuit by employing the transfer function obtained from frequency response analysis data

Capacity Detection Algorithm of Uninterrupted Special Transformer Based on Artificial Immunity and Multi-Object Optimization

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