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Journal articles on the topic 'Linear transformer'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Fujii, Nobuo, Shuhei Kanamitsu, and Takeshi Mizuma. "Transformer Characteristics of Linear Motor-Transformer Apparatus." Journal of Transportation Technologies 01, no. 04 (2011): 94–101. http://dx.doi.org/10.4236/jtts.2011.14012.

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2

Wang, Baoyun, Lei He, Linwei Song, Rui Niu, and Ming Cheng. "Attention-Linear Trajectory Prediction." Sensors 24, no. 20 (2024): 6636. http://dx.doi.org/10.3390/s24206636.

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Recently, a large number of Transformer-based solutions have emerged for the trajectory prediction task, but there are shortcomings in the effectiveness of Transformers in trajectory prediction. Specifically, while position encoding preserves some of the ordering information, the self-attention mechanism at the core of the Transformer has its alignment invariance that leads to the loss of temporal information, which is crucial for trajectory prediction. For this reason, we design a simple and efficient strategy for temporal information extraction and prediction of trajectory sequences using th

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Khristiana, Harrij Mukti, Sudjito Soeparman, Slamet Wahyudi, and Rini Nur Hasanah. "Analysis of loss on single-phase dry transformers with non-linear load." Eastern-European Journal of Enterprise Technologies 5, no. 8 (113) (2021): 17–22. http://dx.doi.org/10.15587/1729-4061.2021.240233.

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The paper studies power losses in transformers due to non-linear loads. The research aims to analyze the power loss in a single-phase dry transformer under a non-linear load. The research uses an SW43W Power supply type, FlukeView Power Quality Analyzer as a DC or AC power supply on the primary side of the transformer. The non-linear load is connected to the secondary side. The loading test of the dry transformer was carried out at non-linear loads. The load variations used 0 %; 12.5 %; 25 %; 37.5 %; 50 %; 62.5 %; 75 %; 87.5 % and 100 %, as well as variations in the THD value by adjusting the

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4

Xia, Shiyu, Miaosen Zhang, Xu Yang, Ruiming Chen, Haokun Chen, and Xin Geng. "Transformer as Linear Expansion of Learngene." Proceedings of the AAAI Conference on Artificial Intelligence 38, no. 14 (2024): 16014–22. http://dx.doi.org/10.1609/aaai.v38i14.29533.

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We propose expanding the shared Transformer module to produce and initialize Transformers of varying depths, enabling adaptation to diverse resource constraints. Drawing an analogy to genetic expansibility, we term such module as learngene. To identify the expansion mechanism, we delve into the relationship between the layer's position and its corresponding weight value, and find that linear function appropriately approximates this relationship. Building on this insight, we present Transformer as Linear Expansion of learnGene (TLEG), a novel approach for flexibly producing and initializing Tra

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Balci, Selami. "Thermal behavior of a three phase isolation transformer under load conditions with the finite element analysis." Thermal Science 24, no. 3 Part B (2020): 2189–201. http://dx.doi.org/10.2298/tsci190706386b.

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Transformers are generally designed to operate under the sinusoidal excitation and the method called classical design method is used in design process. Nevertheless, they have to operate under the partly or fully non-linear excitation because of the increasing amount of the non-linear loads such as rectifiers, electric motor drivers, compact fluorescent lamps, computers, etc. Non-linear loads cause abnormal temperature rise both in the core and in the windings of the transformer which are designed for sinusoidal excitation. Nowadays in the virtual environment provided by the electromagnetic de

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Harrij, Mukti Khristiana, Soeparman Sudjito, Wahyudi Slamet, and Nur Hasanah Rini. "Analysis of loss on single-phase dry transformers with non-linear load." Eastern-European Journal of Enterprise Technologies 5, no. 8 (113) (2021): 17–22. https://doi.org/10.15587/1729-4061.2021.240233.

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The paper studies power losses in transformers due to non-linear loads. The research aims to analyze the power loss in a single-phase dry transformer under a non-linear load. The research uses an SW43W Power supply type, FlukeView Power Quality Analyzer as a DC or AC power supply on the primary side of the transformer. The non-linear load is connected to the secondary side. The loading test of the dry transformer was carried out at non-linear loads. The load variations used 0 %; 12.5 %; 25 %; 37.5 %; 50 %; 62.5 %; 75 %; 87.5 % and 100 %, as well as

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Jie, Xue, and Jinghong Zhao. "Design of linear phase shifting transformer based on linear motor." Journal of Physics: Conference Series 2083, no. 2 (2021): 022038. http://dx.doi.org/10.1088/1742-6596/2083/2/022038.

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Abstract In this paper, a linear phase shifting transformer based on linear motor is studied. The transformer is composed of four groups of three-phase full-bridge inverter system and a linear core. The DC power supply can be converted into three-phase alternating current through the inverter system and the linear phase shifting transformer. Compared with the traditional phase-shifting transformer, the linear phase-shifting transformer is easy to expand, easy to connect, and has better heat dissipation. The simulation results show that this scheme is feasible.

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Zherlitsyn, A. A., V. M. Alexeenko, and S. S. Kondratiev. "An air insulated linear pulse transformer for electrodischarge technology." Journal of Instrumentation 16, no. 12 (2021): P12006. http://dx.doi.org/10.1088/1748-0221/16/12/p12006.

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Abstract A linear pulse transformer with air insulation at atmospheric pressure was created and tested under both constant resistance and non linear loads. The maximum power of the transformer output pulse reached ∼500 MW at a matched load with a charge voltage 50 kV. The transformer transferred ∼60% of the stored energy to the load over a characteristic time of about 1 μs. The scalability the generator was studied by connecting two identical transformers in series which gave a power output of ∼850 MW with doubled output voltage and reduced current. The frequency mode of operation was studied

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9

Ricci, Stefano, and Dario Russo. "Linear Ultrasound Transmitter Based on Transformer with Improved Saturation Performance." Electronics 10, no. 2 (2021): 107. http://dx.doi.org/10.3390/electronics10020107.

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Ultrasound methods are currently employed in a wide range of applications. They are integrated in complex electronics systems, like clinical echographs, but also in small and compact boards, like industrial sensors, embedded systems, and portable devices. Ultrasound waves are typically generated by energizing a piezoelectric transducer through a high-voltage sequence of small sinusoidal bursts. Moreover, in several applications, the ultrasound board should work in a wide frequency range. This makes the transmitter, i.e., the electronics that drives the transducer, a key part of the circuit. Th

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Ricci, Stefano, and Dario Russo. "Linear Ultrasound Transmitter Based on Transformer with Improved Saturation Performance." Electronics 10, no. 2 (2021): 107. http://dx.doi.org/10.3390/electronics10020107.

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Ultrasound methods are currently employed in a wide range of applications. They are integrated in complex electronics systems, like clinical echographs, but also in small and compact boards, like industrial sensors, embedded systems, and portable devices. Ultrasound waves are typically generated by energizing a piezoelectric transducer through a high-voltage sequence of small sinusoidal bursts. Moreover, in several applications, the ultrasound board should work in a wide frequency range. This makes the transmitter, i.e., the electronics that drives the transducer, a key part of the circuit. Th

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11

Zhou, Changduo, Jinghong Zhao, Hanming Wang, Sinian Yan, and Dongao Yan. "Multi‐Objective Optimization Design of Linear Phase Shift Transformer Based on Improved Differential Evolutionary Algorithm." IEEJ Transactions on Electrical and Electronic Engineering 18, no. 9 (2023): 1439–50. http://dx.doi.org/10.1002/tee.23877.

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Linear phase shifting transformer is a new type of phase shifting transformer with the advantages of simple winding structure, easy modularity, and the ability to shift phase at any angle. In order to improve the efficiency and power factor of linear phase shift transformer and reduce the weight of the body, based on the equivalent circuit, this paper first, selects the main design parameters of the linear phase shift transformer model as the optimization object, secondly, selects the constraints and objective function applicable to this model, and then, establishes the linear phase shift tran

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Alharthi, Musleh, and Ausif Mahmood. "Enhanced Linear and Vision Transformer-Based Architectures for Time Series Forecasting." Big Data and Cognitive Computing 8, no. 5 (2024): 48. http://dx.doi.org/10.3390/bdcc8050048.

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Time series forecasting has been a challenging area in the field of Artificial Intelligence. Various approaches such as linear neural networks, recurrent linear neural networks, Convolutional Neural Networks, and recently transformers have been attempted for the time series forecasting domain. Although transformer-based architectures have been outstanding in the Natural Language Processing domain, especially in autoregressive language modeling, the initial attempts to use transformers in the time series arena have met mixed success. A recent important work indicating simple linear networks out

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MR.SURAJ, DIPAK BANKAR, DIPAK BANKAR MR.SURAJ, BALASAHEB BADALE MR.VITTHAL, and M. S. SHINDE PROF. "THE NOVEL DESIGN OF THREE PHASE AUTO TRANSFORMER." JournalNX - A Multidisciplinary Peer Reviewed Journal NCMTEE-2K17 (March 26, 2017): 92–95. https://doi.org/10.5281/zenodo.1452021.

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The development of three phase auto transformer meet with some issues as by changing the conventional design we can reduce the costing as well as performance can be improved. This paper proposes a novel design of linear three phase auto transformer in which the design details and its performance is compared with conventional three phase toroidal core autotransformer. During study it is found that, there is a huge scope for modifications in autotransformers. At the end of paper its hardware design and performance analysis is conducted. https://journalnx.com/journal-article/20150266

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14

P.K., Preetha, and P. S. Chandramohanan Nair. "Modified Distribution Transformer for Enhancing Power Quality in Distribution Systems." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 4 (2016): 1386. http://dx.doi.org/10.11591/ijpeds.v7.i4.pp1386-1392.

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<p>The percentage of non-linear loads in the power distribution sector is increasing day by day. Harmonics injected by these non-linear loads circulate in the delta windings of the conventional distribution transformer thereby increasing the temperature and losses. This reduces the efficiency and life of the transformers. In a modified distribution transformer configuration proposed recently, called star-star-delta_utilized configuration (YYD_utilized), the harmonics circulating in the delta winding was utilized and the drainage power thus recovered was used to power auxiliary loads. Thi

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15

Lailypour, Chia, and Murteza Farsadi. "A New Structure for Sen Transformer Using Three Winding Linear Transformer." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 2 (2016): 440. http://dx.doi.org/10.11591/ijpeds.v7.i2.pp440-449.

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<p>In this paper a new structure for "Sen" transformer is introduced, by using three winding transformers with neutral point in order to use negative value of compensating voltage. Combination of taps will be adjusted by a novel algorithm, to control the required active and reactive powers, separately. This paper tries to focus on three parts. First of all there is an introduction on the concept of ST structure what comes next is a try to work on power flow control by using PI controllers and an algorithm to find the best and efficient combination of taps, finally proposed idea and algor

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16

Bima Sekti Wibawanto and Sri Arttini Dwi Prasetyowati. "Analysis of Transformer Service Life Prediction at Traction Substation Cipete Raya MRT Jakarta Based on Temperature and Load Using Linear Regression Method." International Journal of Mechanical, Electrical and Civil Engineering 1, no. 4 (2024): 61–70. http://dx.doi.org/10.61132/ijmecie.v1i4.48.

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PT Mass Rapid Transit Jakarta operates a mass transportation system from Lebak Bulus Station to Bundaran HI. One of the traction substations is located in Cipete Raya, with a voltage rating of 20kV/1.2kV. A critical piece of equipment in this substation is the traction transformer, with a capacity of 4850 kVA/2x2500 kVA. The purpose of this study is to predict the service life of the Cipete Raya traction transformer based on temperature and load using the linear regression method. This study employs direct observation, analyzing load data from traction transformers 1 and 2 at Cipete Raya from

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17

Merrill, William, and Ashish Sabharwal. "The Parallelism Tradeoff: Limitations of Log-Precision Transformers." Transactions of the Association for Computational Linguistics 11 (2023): 531–45. http://dx.doi.org/10.1162/tacl_a_00562.

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Abstract Despite their omnipresence in modern NLP, characterizing the computational power of transformer neural nets remains an interesting open question. We prove that transformers whose arithmetic precision is logarithmic in the number of input tokens (and whose feedforward nets are computable using space linear in their input) can be simulated by constant-depth logspace-uniform threshold circuits. This provides insight on the power of transformers using known results in complexity theory. For example, if L≠P (i.e., not all poly-time problems can be solved using logarithmic space), then tran

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18

Widagdo, Reza Sarwo, Puji Slamet, and Muhammad Ubaidillah. "Prediction of Transformer Age Based on Temperature Due to Loading Using Linear Trend Method: Case Study of 60 MVA Transformer." Journal of Applied Electrical Engineering 8, no. 1 (2024): 1–8. http://dx.doi.org/10.30871/jaee.v8i1.6999.

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Power Transformers are one of the core equipment found in substations. Every year the need for electricity increases, so that the transformer can work optimally, the loading must also be considered. According to IEC 354, if the transformer is underload it is 100% stable at conditions around 20℃ and the winding temperature is 98℃, but if the ambient temperature is more than 20℃ then the life of the transformer will be reduced. In this research, the loading data used is a 60 MVA power transformer for 2020-2022, specifically to predict the age of the transformer from the load increase factor in t

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19

Firoz Kobir, Abdur Razzak Khan, and Vinukumar Luckose. "Harmonic distortion-based condition monitoring of distribution transformers in a solar farm." World Journal of Advanced Research and Reviews 26, no. 2 (2025): 3427–35. https://doi.org/10.30574/wjarr.2025.26.2.2009.

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This paper presents a condition monitoring approach for distribution transformers in solar farms, focusing on analysing harmonic distortion. The methodology leverages the IEEE standard to evaluate the severity of harmonic pollution in the transformer's operating environment. Specifically, the research investigates Total Harmonic Distortion (THD), Total Demand Distortion (TDD), and Individual Harmonic Distortion (IHD) through real-time data measurements. These parameters are essentially the majority in distinguishing transformer degradation from increased losses, over-heating and insulation str

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Aini, Zulfatri, Zainal Ahnur, David Setiawan, and Ahmad Fudholi. "Analysis of the Effect of an Installation of a Single Tuned Passive Filter on Harmonics and Distribution Transformers." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 3 (2018): 1285. http://dx.doi.org/10.11591/ijpeds.v9.i3.pp1285-1294.

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<span>Non-linear loads on power systems cause harmonics and losses in distribution transformers. Results of the measurements on the two distribution transformers showed several phase transformer test-driven development (TDD) values above the standard SPLN D5.004-1: 2012. The values were 5.58% in the phase transformer, T 1 and 5.48% and 6.10% in S and T phases of the second transformer, respectively. In the calculations, the transformer losses due to harmonic currents were 1.64 kW in the phase transformer T 1, and 1.64 kW and 1.82 kW in the S and T phases of transformer 2, respectively. D

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Lee, Sangho, Hayun Lee, and Dongkun Shin. "Proxyformer: Nyström-Based Linear Transformer with Trainable Proxy Tokens." Proceedings of the AAAI Conference on Artificial Intelligence 38, no. 12 (2024): 13418–26. http://dx.doi.org/10.1609/aaai.v38i12.29244.

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Transformer-based models have demonstrated remarkable performance in various domains, including natural language processing, image processing and generative modeling. The most significant contributor to the successful performance of Transformer models is the self-attention mechanism, which allows for a comprehensive understanding of the interactions between tokens in the input sequence. However, there is a well-known scalability issue, the quadratic dependency (i.e. O(n^2)) of self-attention operations on the input sequence length n, making the handling of lengthy sequences challenging. To add

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Xu, Caosen, Jingyuan Li, Bing Feng, and Baoli Lu. "A Financial Time-Series Prediction Model Based on Multiplex Attention and Linear Transformer Structure." Applied Sciences 13, no. 8 (2023): 5175. http://dx.doi.org/10.3390/app13085175.

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Financial time-series prediction has been an important topic in deep learning, and the prediction of financial time series is of great importance to investors, commercial banks and regulators. This paper proposes a model based on multiplexed attention mechanisms and linear transformers to predict financial time series. The linear transformer model has a faster model training efficiency and a long-time forecasting capability. Using a linear transformer reduces the original transformer’s complexity and preserves the decoder’s multiplexed attention mechanism. The results show that the proposed me

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Liao, Bencheng, Xinggang Wang, Lianghui Zhu, Qian Zhang, and Chang Huang. "ViG: Linear-complexity Visual Sequence Learning with Gated Linear Attention." Proceedings of the AAAI Conference on Artificial Intelligence 39, no. 5 (2025): 5182–90. https://doi.org/10.1609/aaai.v39i5.32550.

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Recently, linear complexity sequence modeling networks have achieved modeling capabilities similar to Vision Transformers on a variety of computer vision tasks, while using fewer FLOPs and less memory. However, their advantage in terms of actual runtime speed is not significant. To address this issue, we introduce Gated Linear Attention (GLA) for vision, leveraging its superior hardware-awareness and efficiency. We propose direction-wise gating to capture 1D global context through bidirectional modeling and a 2D gating locality injection to adaptively inject 2D local details into 1D global con

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Lv, Jinzhuang, Mingchun Hou, Zhicheng Pan, et al. "Measurement Method of Deeply Saturated Excitation Characteristics of Converter Transformer Under AC-DC Hybrid Excitation." Electronics 13, no. 23 (2024): 4691. http://dx.doi.org/10.3390/electronics13234691.

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During operation, converter transformers enter a saturation state, leading to phenomena such as magnetising inrush currents. Accurately measuring the excitation characteristic curve of an iron core under deep-saturation conditions is essential for analysing low-frequency transient phenomena in transformers. This paper presents a method for calculating the excitation characteristics of a converter transformer under deep iron core saturation. The method involves establishing an improved T model for the converter transformer and conducting open-circuit experiments in the linear working region to

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WANG Yin, 王. 寅., 潘. 松. PAN Song, 黄卫清 HUANG Wei-qing, and 余. 卿. YU Qing. "Linear piezoelectric motor with triangular displacement transformer." Optics and Precision Engineering 24, no. 8 (2016): 1973–79. http://dx.doi.org/10.3788/ope.20162408.1973.

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Liu Hongwei, 刘宏伟, 李洪涛 Li Hongtao, 王传伟 Wang Chuanwei, et al. "Repetitive linear transformer driver based on IGBTs." High Power Laser and Particle Beams 23, no. 8 (2011): 2243–46. http://dx.doi.org/10.3788/hplpb20112308.2243.

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Chen Lin, 陈林, 谢卫平 Xie Weiping, 邹文康 Zou Wenkang, et al. "100 GW fast linear transformer driver generator." High Power Laser and Particle Beams 24, no. 3 (2012): 651–54. http://dx.doi.org/10.3788/hplpb20122403.0651.

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Gutierrez, M., R. C. Degeneff, P. J. McKenny, and J. M. Schneider. "Linear, lumped parameter transformer model reduction technique." IEEE Transactions on Power Delivery 10, no. 2 (1995): 853–61. http://dx.doi.org/10.1109/61.400845.

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29

Petchmaneelumka, Wandee, Pitsini Mano, and Vanchai Riewruja. "Linear Variable Differential Transformer Temperature Compensation Technique." Sensors and Materials 30, no. 10 (2018): 2171. http://dx.doi.org/10.18494/sam.2018.1816.

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Kovalchuk, B. M., A. V. Kharlov, E. V. Kumpyak, G. V. Smorudov, and A. A. Zherlitsyn. "Capacitor blocks for linear transformer driver stages." Review of Scientific Instruments 85, no. 1 (2014): 013501. http://dx.doi.org/10.1063/1.4857475.

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KOVALCHUK, B. M., E. N. ABDULLIN, D. M. GRISHIN, et al. "Linear transformer accelerator for the excimer laser." Laser and Particle Beams 21, no. 2 (2003): 219–22. http://dx.doi.org/10.1017/s026303460321209x.

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A high-current accelerator for pumping of the 200-L excimer laser is developed, providing electron energy of 550 keV, a diode current of 320 kA, and an e-beam current of 250 kA. The high-voltage part of the accelerator consists of two linear transformers with a stored energy of 98 kJ. To reduce the influence of the self-magnetic field on e-beam formation, the vacuum diode is divided into six separate magnetically isolated diodes.

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Xiang Fei, Tan Jie, Luo Min, Wang Gan-Ping, and Kang Qiang. "Fast linear transformer high power pulse generator." Acta Physica Sinica 60, no. 6 (2011): 064102. http://dx.doi.org/10.7498/aps.60.064102.

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Weihua Jiang and A. Tokuchi. "Repetitive Linear Transformer Driver Using Power MOSFETs." IEEE Transactions on Plasma Science 40, no. 10 (2012): 2625–28. http://dx.doi.org/10.1109/tps.2012.2200048.

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Tianxue Liang, Xiaofeng Jiang, Fengju Sun, and Aici Qiu. "300-kA Fast Linear Transformer Driver Stage." IEEE Transactions on Plasma Science 40, no. 11 (2012): 3087–92. http://dx.doi.org/10.1109/tps.2012.2213072.

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Li, Jiangtao, Wenzhong Chen, Jianhao Li, Weihua Jiang, Xu Zhong, and Yang Gou. "Robust Design for Linear Transformer Driver System." IEEE Transactions on Plasma Science 43, no. 10 (2015): 3406–11. http://dx.doi.org/10.1109/tps.2015.2429688.

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Liang, Chuan, Mingjia Li, Wenchuan Wang, and Zhenghong Li. "A trigger source for linear transformer driver." Journal of Instrumentation 18, no. 01 (2023): P01018. http://dx.doi.org/10.1088/1748-0221/18/01/p01018.

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Abstract A repetitive low jitter trigger source applied in triggering the multi-gap gas switch of the linear transformer driver (LTD) stage, is designed and developed in this paper.The pulse source based on fast Marx topology can repetitively output a low jitter high voltage pulse into a 50 Ω resistance load with peak value of 150 kV, rising time of 7 ns, width of 260 ns and rep-rate 0.1 Hz. Proper design of stray capacitance to peak the output pulse and employing the UV light to pre-ionize each consequent stage gap to reduce the switch delay time and jitter have been proposed. All those have

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Li, Zhen Kun, Jing Jing Zhao, Hui Ji, and Yang Fu. "Phase Compensation Method for Electronic Instrument Transformers." Applied Mechanics and Materials 241-244 (December 2012): 641–47. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.641.

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A phase compensation method based on signal transfer principle of electronic transformer is presented. The causes of phase error in electronic transformer are analyzed. The phase-delay caused by Rogowski coil and time-delay in signal transferring process from high voltage side to merging unit are analyzed. A phase compensation method is proposed based on high sampling rate and linear interpolation. The simulation result verifies the effectiveness of the proposed compensation method for electronic transformers.

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Peng, Hong Juan. "Analysis of Resonance Transformer Design Based on Electronic Linear Accelerator." Applied Mechanics and Materials 416-417 (September 2013): 2102–4. http://dx.doi.org/10.4028/www.scientific.net/amm.416-417.2102.

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Resonance transformer design is a large-scale and complicated management process. With the improvement of science and technology in China, and the application of modern professional, factory, mechanical and information means provides sufficient science and technology basis for the transformer design level. Grounded in the environment of electronic linear accelerator, this thesis could change the current situation of imperfect transformer management. This thesis elaborates the background and significance of electronic linear accelerator in resonance transformer design, proposes the purpose and

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Yang, Xueting, Ying Yu, and Xiaoyu Wu. "Double Linear Transformer for Background Music Generation from Videos." Applied Sciences 12, no. 10 (2022): 5050. http://dx.doi.org/10.3390/app12105050.

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Many music generation research works have achieved effective performance, while rarely combining music with given videos. We propose a model with two linear Transformers to generate background music according to a given video. To enhance the melodic quality of the generated music, we firstly input note-related and rhythm-related music features separately into each Transformer network. In particular, we pay attention to the connection and the independence of music features. Then, in order to generate the music that matches the given video, the current state-of-the-art cross-modal inference meth

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Jing, Zhipeng, Lipo Gao, Chengao Wu, and Dong Liang. "Linear Quadratic Regulator-Based Coordinated Voltage and Power Control for Flexible Distribution Networks." Energies 18, no. 2 (2025): 361. https://doi.org/10.3390/en18020361.

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Multi-port soft open points (SOPs) are effective devices for alleviating issues such as voltage violation and transformer overloading in distribution networks caused by the high penetration of distributed energy resources. This paper proposes a coordinated voltage and power control method for flexible distribution networks based on a linear quadratic regulator (LQR). First, the principle of coordinated voltage and power control is analyzed based on SOPs’ control strategies and a linear power flow model. Then, a discrete-time state-space model is constructed for flexible distribution networks w

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Zeng, Ailing, Muxi Chen, Lei Zhang, and Qiang Xu. "Are Transformers Effective for Time Series Forecasting?" Proceedings of the AAAI Conference on Artificial Intelligence 37, no. 9 (2023): 11121–28. http://dx.doi.org/10.1609/aaai.v37i9.26317.

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Recently, there has been a surge of Transformer-based solutions for the long-term time series forecasting (LTSF) task. Despite the growing performance over the past few years, we question the validity of this line of research in this work. Specifically, Transformers is arguably the most successful solution to extract the semantic correlations among the elements in a long sequence. However, in time series modeling, we are to extract the temporal relations in an ordered set of continuous points. While employing positional encoding and using tokens to embed sub-series in Transformers facilitate p

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Petchmaneelumka, Wandee, Kanoknuch Songsuwankit, Jakkapun Tongcharoen, and Vanchai Riewruja. "Linear-range Extension for Linear Variable Differential Transformer Using Binomial Series." Sensors and Materials 32, no. 2 (2020): 475. http://dx.doi.org/10.18494/sam.2020.2407.

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Petchmaneelumka, Wandee, Wittaya Koodtalang, and Vanchai Riewruja. "Simple Technique for Linear-Range Extension of Linear Variable Differential Transformer." IEEE Sensors Journal 19, no. 13 (2019): 5045–52. http://dx.doi.org/10.1109/jsen.2019.2902879.

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Huang, Xuemin, Xiaoliang Zhuang, Fangyuan Tian, et al. "A Hybrid ARIMA-LSTM-XGBoost Model with Linear Regression Stacking for Transformer Oil Temperature Prediction." Energies 18, no. 6 (2025): 1432. https://doi.org/10.3390/en18061432.

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Transformers are essential for voltage regulation and power distribution in electrical systems, and monitoring their top-oil temperature is crucial for detecting potential faults. High oil temperatures are directly linked to insulation degradation, a primary cause of transformer failures. Therefore, accurate oil temperature prediction is important for proactive maintenance and preventing failures. This paper proposes a hybrid time series forecasting model combining ARIMA, LSTM, and XGBoost to predict transformer oil temperature. ARIMA captures linear components of the data, while LSTM models c

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Banchuin, Rawid, and Roungsan Chaisrichaoren. "An Extensive Tensor Algebraic Model of Transformer." ECTI Transactions on Computer and Information Technology (ECTI-CIT) 14, no. 1 (2020): 79–91. http://dx.doi.org/10.37936/ecti-cit.2020141.153727.

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An extensive s-domain tensor algebraic model of the transformer has been proposed. Unlike the traditional matrix-vector approach which relies on the conventional linear algebra, this model which in turn assumes the multilinear algebra that is of higher dimension thus more generic, is applicable to those recently often cited transformers which often employ the unconventional characteristics i.e. frequency variant parameters, time variant parameters and fractional impedance. The examples of such transformers are the on-chip monolithic transformer, the dynamic transformers and the fractional mutu

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Park, Taewon, and Hyun-Chul Kim. "Improving Systematic Generalization of Linear Transformer Using Normalization Layers and Orthogonality Loss Function." Mathematics 12, no. 21 (2024): 3390. http://dx.doi.org/10.3390/math12213390.

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A Linear Transformer linearizes the attention mechanism of the vanilla Transformer architecture, significantly improving efficiency and achieving linear theoretical complexity with respect to sequence length. However, few studies have explored the capabilities of the Linear Transformer beyond its efficiency. In this work, we investigate the systematic generalization capability of the Linear Transformer, a crucial property for strong generalization to unseen data. Through preliminary experiments, we identify two major issues contributing to its unstable systematic generalization performance: (i

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Orosz, Tamás, Mariusz Stępień, and Peter Poór. "Design Analysis of High Frequency Linear Transformer with Ārtap Framework." Periodica Polytechnica Electrical Engineering and Computer Science 65, no. 2 (2021): 146–51. http://dx.doi.org/10.3311/ppee.17488.

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This paper presents the design and a design analysis of a coaxial, linear transformer. This is a novel high frequency transformer concept for energy conversion. The examined transformer was designed for 1 MHz nominal frequency. One of the main advantages of the proposed transformer design is its simple winding system. It contains only two coaxial copper tubes, which can be easily manufactured and modeled with high precision. One of the key design tasks is the minimization of the leakage inductance. The inductance of the straight coils depends on the ratio of the height and the diameter of the

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Mafra, Rafael, Elisan Magalhães, Bruno Anselmo, Fernando Belchior, and Sandro Lima e Silva. "Winding Hottest-Spot Temperature Analysis in Dry-Type Transformer Using Numerical Simulation." Energies 12, no. 1 (2018): 68. http://dx.doi.org/10.3390/en12010068.

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A thermal analysis of a 5 kVA dry-type transformer under linear and non-linear loads conditions is studied in this paper. The main goal here is to calculate the hottest-spot transformer temperature under free convection through the resolution of the heat conduction equation in three dimensions (3D) using COMSOL Multiphysics®. The proposed technique was validated through experimental data obtained in laboratory. The temperature inside the cores was measured under the influence of free convection. The radiation emission was also measured through a thermal camera. The heat transfer coefficient fo

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Yarymbash, D.S., M.I. Kotsur, S.T. Yarymbash, and I.M. Kylymnyk. "Electromagnetic Processes Simulation of Power Transformers in Operation and in No-load Modes." Problemele Energeticii Regionale 1(45) (January 15, 2020): 1–13. https://doi.org/10.5281/zenodo.3713396.

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In the designing preproduction of power transformers for calculating design data, a circuit models are widely used, which doesn’t fully reflect the structural features of the transformer and spatial energy conversion. This leads to a significant increase of the error of design calculations and calculations of the magnetization parameters in load operation of transformers. This is especially the case in networks with alternative generation of electrical energy. Therefore, the aim of the work is to estimate the influence of design features and non-linear characteristics of electrical steel

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Muhammad Haziq Mohd Wazir, Dalila Mat Said, Norazliani Md Sapari, and Mohamed Shahriman Mohamed Yunus. "Harmonics Assessment of Distribution Transformer with Photovoltaic Integration and Unbalanced Loads." ELEKTRIKA- Journal of Electrical Engineering 23, no. 1 (2024): 81–87. http://dx.doi.org/10.11113/elektrika.v23n1.504.

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Harmonic distortion is one of the monumental power quality problems in an electrical power system. It frequently originated from non-linear loads generating non-sinusoidal steady state waveforms, which may lead to various undesirable effects on distribution transformers such as increased losses, overheating and lifetime reduction. In previous works, the harmonic current contributions from non-linear loads from consumers have been appointed as the main contributor of harmonic issues in the distribution transformers. However, since the integrations of renewable energy as a distributed generation

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