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Optimal Design of Power Transformer with Advance Core Material Using ANSYS Technique EJECE, European Journal of Electrical Engineering and Computer Science Vol. 4, No. 5, October 2020 Optimal Design of Power Transformer with Advance Core Material using ANSYS Technique Shabana Urooj, Tanya Singh, Mohammad Amir and Mohd Tariq from one to other systems in the circuit without any Abstract — Due to indulge behavior of core materials and requirement of relative motion within the parts. losses that leads to degradation of transformer efficiency. This In the core of transformer, a time-variant magnetic flux can research paper evaluating the optimal performance of be created by the application of alternating voltage to one transformer with designing of a newly core material namely as Mo.Me6. A possibility of increment in the efficiency for designed winding with the introduction of voltage in another winding, proposed model of transformer is observable. Also, a as per mutual induction law. Faraday introduced the principle comparative analytical study based on the different designs of of transformer in 1831. An ideal transformer having no losses core type transformer with various core materials. The design means its windings are free from ohmic resistance as well as and evaluation are performed on the Maxwell ANSYS electronic magnetic leakage is considered as ideal transformer [3]. desktop platform, which provides an optimized design of However, practically losses occur in the transformer, as transformer for practical applications. Whether it is a power transformer having lower frequency applications use in output obtained from the transformation is not as same as the electronic circuits such as rectifying circuits or higher frequency input applied. The law of energy states that “energy cannot applications power distribution circuit, etc. All transformer be created nor be destroyed but can be transferred from one designs require performance evaluation in the working field and phase to another” and in this transfer of energy, losses occur. better efficiency to optimize the overall three-phase type core From past it has been noticed that two types of transformers 6 transformer. In this paper, proposed Mo.Me material with have been in application that is core type and shell type of improved physical properties have been present of transformer transformer. Transformers used as power transformers are efficiency and optimal design of core. The criteria include the changes in some effective parameters of the core, bringing out one of the major apparatus in the power system [4]. Medium advancement in the working efficiency of the transformer. and large power transformers are very important and vital There is an opportunity to have a choice of desired material as component of electric power systems [5]. Generally, power designed particularly for the customer need making it will be transformers are significant power devices where more reliable and more suitable for various changeable electromagnetic phenomena should subsist the severe short conditions. For more efficient and effective working of transformer, this paper suggests core design with ANSYS circuit current situations [6]. Distribution power transformers techniques to achieve mentioned high efficiency with lower are also vital equipment of the distribution system, for losses. transfer the electric power by step-up/down voltages in suitability with power distribution system to power Index Terms — ANSYS (Analysis System), Mo.Me6 (Modified consumers or power industry [7]. Material of Conductivity 106 Sie/m), Power Transformer. The condition monitoring of power transformers is of excessive importance while considering the consistency and safety perspective in a dynamic system. Nowadays the I. INTRODUCTION research on motoring of transformers is taking a great phase In today’s world, electricity is one of the most vital as many sensors are used in this method to check the working components of modern society. The utility of transformers for of transformer components, which can be core/winding type. power transmission was invented by Nikole Tesla in 19th Earlier in 2017, S. Anoop and N. Aufal [8] had proposed century. From turning on a light bulb to running big factories criteria for the selection of sensors that are used in advance every machine needs some source to work and the most monitoring systems of the transformer’s winding. Like that needed source is electricity. Whether it is transmission or the core monitoring system control system can be developed. distribution, main component in electric power is A power transformer fault can lead to severe damage to the transformer. The transformer had been playing an important whole system itself and its surroundings. As the increasing role at various voltage levels for the interconnected power concern on the transformer, recently in 2018 S. Kittan [9] did system [1]. At some frequency electrical power is research leading to a discussion about actual HI (Health transformed is one circuit to others by a static piece of Index) methods through study. After that, the selection of a equipment recognized as transformer [2]. In transformer, better method has been considered for the transformer. In this electrical energy is being transferred by magnetic coupling research paper a new material has been designed which led to Published on October 30, 2020. Mohammad Amir, Department of Electrical Engineering, Madan Mohan Shabana Urooj, Department of Electrical Engineering, School of Malaviya University of Technology (MMMUT), Gorakhpur, India. Engineering, Gautam Buddha University, Greater Noida, India. (corresponding e-mail: md.amir ieee.org) (e-mail: shabanaurooj@ ieee.org) Mohd Tariq, Department of Electrical Engineering, ZHCET, Aligarh Tanya Singh, Department of Electrical Engineering, School of Engineering, Muslim University, Aligarh, India. Gautam Buddha University, Greater Noida, India. (e-mail: tariq.ee zhcet.ac.in). (e-mail: tstanyasingh26 gmail.com) DOI: http://dx.doi.org/10.24018/ejece.2020.4.5.249 Vol 4 | Issue 5 | October 2020 1 EJECE, European Journal of Electrical Engineering and Computer Science Vol. 4, No. 5, October 2020 change in the working efficiency of the designed transformer. II. DESCRIPTION OF PROPOSED SYSTEM Similarly, new techniques and methods are designed to check A. Material Design for Power Transformers the working of upcoming new core material. In 2019, F. R. Ismagilov [10] developed a core material of The transformer designed in the software is a core type of amorphous magnetic material as a new material for the core. transformer in which windings are wounded around all cores Here the authors have developed the new transformer rectifier of the transformer. The following is the design of the unit. Here amorphous is used in transformer core material to proposed model. improve efficiency. The losses are the main factor also in transformer owning cost [11]. The stability and reliability of the power transformers in power system applications mainly depends on the quality of employed ferrite cores [12]. Here, transformer core plays an important role in the working efficiency of transformer. New designing of core material has added an advantage of analyzing the working efficiency of transformer. Although the efficiency of power transformers for high-power convention, there are substantial quantities of power losses, that radiates heat inadequately into the ambient air [13], [14]. Improvement in the efficiency of transformer can be done by deducing electrical losses (PT) comprising of both core (PCORE) and copper losses (PCU) presenting in the following equation. 푇 퐶푂푅퐸 퐶푈 푃 = 푃 + 푃 (1) Fig. 1. Proposed model of the core type transformer designed in ANSYS. 푂푢푡푝푢푡 퐸푓푓푐푒푛푐푦 (դ) = × 100% (2) 퐼푛푝푢푡 + 푃푇 Here, in the given Fig. 1, the transformer is a three-phase model which works in transient system. The voltage phases In our proposed methodology, we are focusing on the are cosine in nature. This figure depicts all three axis and losses occurring in the core which have to be minimized for dimensions x, y and z. The excitation in windings is applied improving three phase core type transformers. The reason is in x-z direction. The yellow color symbolizes the core, and that while designing transformers main consideration should the green ones are windings wounded on the core of the be focused on core losses as it comprises 70% of total losses following are the system terminologies used: in the transformer [15]. In this paper for the designing and a) Region: It is the confined box which is designed in all comparison, purpose ANSYS electronics desktop software three dimensions. It is used to provide an environment for the has been used. This software is a global platform, which transformer to work desired medium. (value used region: 40, provides opportunity for the simulation of various power 250 and 40). system, power electronics components for the field of b) Transient system: The transient system has been taken electrical engineers [16]. The whole simulation has been to ensure the working of the transformer with varying voltage performed in 3D. The reason is that most parameters directly in all three phases. affects the performances of transformer that can be seen in c) Coil terminal: The terminals of coil have been selected the 3D simulation [17]. Generally, inner structure parts of the to provide excitation in the coil terminal. transformer analysis are unpredictable and based on the d) Materials used: The material used for the following are electric field distribution in inner structure transformer [18] given below: only specify 2D models. Therefore, these are the reasons why • For core: The material used in the core of the proposed simulation is better in 3D rather than 2D simulation. model of the transformer is based on the parameters Section II of the manuscript contains the beginning of the taken with B-H curve and Core loss curve. Here the idea with thoughtful procedure of introduction followed with material is termed as Mo.Me6. Also, iron has been used explanation of methodology and the proposed model with to compare the working of the transformer. material description of the completely generalized system • For winding: The copper material has been selected with its parameters.
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