Journal of Electrical Engineering & Technology最新文献_第6页

Design and Research of Wireless Power Transfer System Based on Parity-Time-Symmetric 基于奇偶校验-时间对称的无线电力传输系统的设计与研究

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-07-31 DOI: 10.1007/s42835-024-01977-7

Yan Liu, Minghui Han, Hao Pan

{"title":"Design and Research of Wireless Power Transfer System Based on Parity-Time-Symmetric","authors":"Yan Liu, Minghui Han, Hao Pan","doi":"10.1007/s42835-024-01977-7","DOIUrl":"https://doi.org/10.1007/s42835-024-01977-7","url":null,"abstract":"The traditional Wireless Power Transfer (WPT) system has the problem that the coupling coefficient has a great influence on the transmission characteristics. The WPT system with PT-symmetric structure can achieve the transmission characteristics independent of the coupling coefficient and maintain stable power and efficiency transmission in the strong coupling region constructed by the PT-WPT system. To further optimize PT-WPT, this paper proposes a PLL controlled wireless power transfer system based on PT-symmetric theory. Phase-locked loop (PLL) is employed to accurately control the power of the transmitter and the system can maintain constant transmission power and efficiency in the strong coupling region. In addition, this control method also reduces the complexity of WPT system. A 10–15 W experimental WPT system platform with a 0–10 cm transmission distance is developed to validate the transmission power and efficiency of the system, The results demonstrate that the output voltage and current of the inverter can always ensure that the system works in the PT-symmetric state and the transmission efficiency is more than 90%, The transmission power is not less than 10 W within the transmission range of 0–10 cm. The designed system can maintain constant high efficiency and high-power transmission in the strong coupling region.","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":"76 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141868664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Tri-axial Resonating Beam MEMS Accelerometer 三轴谐振梁 MEMS 加速计

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-07-30 DOI: 10.1007/s42835-024-01984-8

Chinmay Yadav, S Srinivasulu Raju, Sujan Yenuganti

{"title":"A Tri-axial Resonating Beam MEMS Accelerometer","authors":"Chinmay Yadav, S Srinivasulu Raju, Sujan Yenuganti","doi":"10.1007/s42835-024-01984-8","DOIUrl":"https://doi.org/10.1007/s42835-024-01984-8","url":null,"abstract":"MEMS-based devices have helped in the miniaturization of various transducers, one such being the accelerometer. The current study presents the design and simulation of a MEMS tri-axial resonance-based accelerometer in a differential arrangement to measure acceleration up to 5 g. The final tri-axial accelerometer differential design is derived from five designs which consist of four proof masses, four resonating beams, two vertical and two horizontal hinges. The first three designs are non-differential designs and the next two designs give a differential output only for out-of-plane acceleration. Numerical simulations were carried out in COMSOL Multiphysics for all the designs and the dimensions were optimized to obtain maximum stress on the resonating beam for an applied acceleration. Eigenfrequency analysis was also carried out to estimate the change in resonance frequencies of all the resonating beams in each of the proposed models along with the final differential design. The sensitivities were found to be 33 Hz/g, 33 Hz/g, and 19 Hz/g for the final differential design in X, Y, and Z directions respectively. The differential arrangement will be able to compensate for any temperature variations and the resonance condition can be achieved by piezoelectric excitation and detection.","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":"213 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141868827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of Frequency Response Analysis for Parameters Estimation of Switched Reluctance Motors 频率响应分析在开关磁阻电机参数估算中的应用

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-07-26 DOI: 10.1007/s42835-024-01975-9

Fatima E. El Mansouri, Mohamed I. Mosaad, Laila Kadi, Abdelmalek Ouannou, Hafid Oubouaddi, Adil Brouri

{"title":"Application of Frequency Response Analysis for Parameters Estimation of Switched Reluctance Motors","authors":"Fatima E. El Mansouri, Mohamed I. Mosaad, Laila Kadi, Abdelmalek Ouannou, Hafid Oubouaddi, Adil Brouri","doi":"10.1007/s42835-024-01975-9","DOIUrl":"https://doi.org/10.1007/s42835-024-01975-9","url":null,"abstract":"Switched reluctance machines (SRMAs) have recently received significant attention in the electrical power research community. This attention can be attributed to its outstanding features and traits of being used as generators or engines. An accurate model should be developed to design controllers and drives for these SRMAs properly. Analytical techniques and polynomial degree representation have been used in several attempts to find the SRMA parameters in the literature. However, it is important to note that these techniques are based on many assumptions and approximations. This study develops a precise, analytical model of the SRMA without any assumptions, approximations, or conducting any practical experiments. This analysis is based on frequency techniques using Fourier expansion and spectrum analysis. Then, an identification method is proposed to determine the model parameters, e.g., the inductance parameters. Furthermore, the magnetic field distribution and other performances of the switched reluctance motors, such as the torque, can be given using this method. Comparisons between the outcomes produced by this frequency model and those provided by FEM (Finite Element Method) and the recursive least squares approach were made to demonstrate the efficacy of the suggested study. This comparison shows that the proposed method is more accurate in finding the SRMA parameters than other methods. The proposed approach effectively predicted the motor parameters in about 2% less than other methods.","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":"52 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141781344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lifetime Extension of DC-Link Capacitors in Three-Level Inverters Based on the Neutral-Point Current 基于中性点电流延长三电平逆变器中直流链路电容器的使用寿命

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-07-24 DOI: 10.1007/s42835-024-01983-9

Hye-Won Choi, Yun-Jae Bae, Kyo-Beum Lee

引用次数: 0

Non-intrusive Load Decomposition for Smart Buildings Based on Parallel Connectivity Networks and Attention Mechanism 基于并行连接网络和关注机制的智能楼宇非侵入式负载分解

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-07-20 DOI: 10.1007/s42835-024-01939-z

Lingzhi Yi, Xiangxiang Xu, Yahui Wang, Jiangyong Liu, Yuhang Gao, Ximeng Liu

{"title":"Non-intrusive Load Decomposition for Smart Buildings Based on Parallel Connectivity Networks and Attention Mechanism","authors":"Lingzhi Yi, Xiangxiang Xu, Yahui Wang, Jiangyong Liu, Yuhang Gao, Ximeng Liu","doi":"10.1007/s42835-024-01939-z","DOIUrl":"https://doi.org/10.1007/s42835-024-01939-z","url":null,"abstract":"To obtain the operating status of equipment and loads in buildings without installation of intrusive monitoring devices, non-intrusive load decomposition and monitoring methods have become the research focus of many scholars and researchers. To improve the accuracy of non-intrusive load decomposition, a non-intrusive load decomposition based on parallel connection network and attention mechanism is proposed. This proposed method educes the depth of network by ‘parallel connection’ and reduces the risk of overfitting. In additional, the dilated residual convolutional neural network and the bidirectional long short-term memory network are connected in parallel to extract features respectively, which greatly improves the representation ability of features. The attention mechanism is introduced to eliminate redundant information, focus on important information, and improve the decomposition performance. Finally, the domestic self-assessment data set is used, and different evaluation indicators are used for evaluation and comparison with other commonly used models. The simulation results show that the decomposition accuracy of proposed method is significantly improved.","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":"55 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141739789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of a Multi-Channel PID Temperature Control System Based on PLC and Internet of Things (IOT) 基于 PLC 和物联网 (IOT) 的多通道 PID 温度控制系统的设计

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-07-19 DOI: 10.1007/s42835-024-01978-6

Yanpeng Zheng, Tong Li, Yunfei Sun, Dong Su, Wanqian Zhu, Song Xue, Jiahua Chen, Limin Jin

{"title":"Design of a Multi-Channel PID Temperature Control System Based on PLC and Internet of Things (IOT)","authors":"Yanpeng Zheng, Tong Li, Yunfei Sun, Dong Su, Wanqian Zhu, Song Xue, Jiahua Chen, Limin Jin","doi":"10.1007/s42835-024-01978-6","DOIUrl":"https://doi.org/10.1007/s42835-024-01978-6","url":null,"abstract":"In view of the temperature control system with Programmable Logic Controller (PLC) as the core, the main problems focus on the inability to realize wireless communication, remote downloading, poor temperature stability and poor anti-interference ability. A multi-channel Proportional Integral Differential (PID) temperature control system based on PLC and Internet of Things (IOT) is designed. It can not only adjust the temperature in real time. But also, the thirdparty cloud platform can be used through Message Queuing Telemetry Transport (MQTT) protocol, wireless data monitoring and remote control can also be carried out, and PLC programs can be downloaded remotely. Compared with the traditional wired monitoring system, it has great advantages and brings unprecedented convenience to the maintenance of the equipments. Based on the prototype, the multi-channel temperature stability and anti-interference tests, and wireless communication monitoring and alarm tests are carried out. The results show that the actual temperature of the system can change with the set value by PID control algorithm with the multi-channel heaters, and the temperature stability can reach ± 0.1 °C in steady state. In addition, real-time data such as temperature, voltage and current can be obtained through the cloud platform monitoring interface. And after triggering the alarm, the mobile devices (such as mobile phones) receive messages in real time.","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":"74 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141739937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Study on Thermal Decomposition of Polyvinyl Chloride Outer Sheath of 110 kV High Voltage Cable 110 kV 高压电缆聚氯乙烯外护套热分解实验研究

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-07-19 DOI: 10.1007/s42835-024-01931-7

Ren-jun Jing, Gang Wei, Kai-yang Du, Zheng-qin Cao, Hui Yan

{"title":"Experimental Study on Thermal Decomposition of Polyvinyl Chloride Outer Sheath of 110 kV High Voltage Cable","authors":"Ren-jun Jing, Gang Wei, Kai-yang Du, Zheng-qin Cao, Hui Yan","doi":"10.1007/s42835-024-01931-7","DOIUrl":"https://doi.org/10.1007/s42835-024-01931-7","url":null,"abstract":"The state of the polyvinyl chloride (PVC) outer sheath of cable before combustion has not been fully clarified, especially in relation to thermal decomposition gas research. To further establish the cable fire warning technology based on thermal decomposition gas, the author of this paper sets up an experimental platform for thermal decomposition of high voltage cable outer sheath. The objective is to investigate the thermal decomposition characteristics of 110 kV high voltage cable PVC outer sheath in oxygen-free and oxygen conditions. The thermal decomposition behavior of PVC outer sheath in nitrogen and air atmospheres were studied by Fourier Transform Infrared (FTIR) spectroscopy. The characteristic gases produced by thermal decomposition were revealed by infrared spectroscopy. The effects of heating temperature and heating time on these characteristic gases were investigated. The results showed that the thermal decomposition gases of the PVC outer sheath of 110 kV high voltage cable in two atmospheres were mainly H2O, CO2. Also found were small amounts of alkanes, as well as dioctyl phthalate (DOP) and 2-ethylhexanol (2-EH). The peak absorbance of DOP was influenced by the heating temperature and heating time, while that of 2-ethylhexanol was almost not influenced by the heating temperature. The experimental results of this paper will provide theoretical and technical support for the early warning of cable fires.","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":"61 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141739962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Performance Position Estimation Method Based on the Error-Corrected State Observer and Its Application on Permanent Magnet Synchronous Machine 基于误差校正状态观测器的高性能位置估计方法及其在永磁同步电机上的应用

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-07-18 DOI: 10.1007/s42835-024-01976-8

Lei Wang, Xin Wei, Daen Chen, Yongde Zhang, Shuanghui Hao

{"title":"High-Performance Position Estimation Method Based on the Error-Corrected State Observer and Its Application on Permanent Magnet Synchronous Machine","authors":"Lei Wang, Xin Wei, Daen Chen, Yongde Zhang, Shuanghui Hao","doi":"10.1007/s42835-024-01976-8","DOIUrl":"https://doi.org/10.1007/s42835-024-01976-8","url":null,"abstract":"In order to enhance the state feedback accuracy of permanent magnet synchronous motor (PMSM), magnetic simulation analysis, magnetic simulation analyses were initially conducted on a 10-pole, 12-slot motor to investigate the reliability of PMSM under long-term operational conditions. Subsequently, we considered the impact of current disturbances on position observation, along with the harmonic disturbances of stator current and permanent magnet flux, to rectify the observed errors of the state observer. A novel error-corrected extended state observer is proposed to enhance the observed accuracy of PMSM. Finally, acceleration and deceleration experiment, as well as load disturbance experiment, were performed. The results of the experiments and observed simulations demonstrate that the designed state observer achieves faster dynamic response and higher observed precision compared to the state observer that does not utilize the method presented in this paper. Moreover, it exhibits excellent sinusoidal properties of the current waveform and strong anti-disturbance ability.","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":"55 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141739982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adaptive Clutter Filtering for Speckle Decorrelation-Based Blood Flow Measurements 基于斑点解相关性的血流测量的自适应杂波滤波器

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-07-18 DOI: 10.1007/s42835-024-01981-x

Dong Chan Park, Dae Woo Park

引用次数: 0

Field-Weakening Control Method on Induction Motor of Low-Speed Vehicle Using Look-Up Tables 使用查找表的低速汽车感应电机场削弱控制方法

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-07-16 DOI: 10.1007/s42835-024-01973-x

EunWoo Lee, DongHo Choi, Chang-Hee Lee, June-Seok Lee

{"title":"Field-Weakening Control Method on Induction Motor of Low-Speed Vehicle Using Look-Up Tables","authors":"EunWoo Lee, DongHo Choi, Chang-Hee Lee, June-Seok Lee","doi":"10.1007/s42835-024-01973-x","DOIUrl":"https://doi.org/10.1007/s42835-024-01973-x","url":null,"abstract":"This paper presents a method for field-weakening control on the induction motor of a low-speed vehicle (LSV) using look-up tables (LUTs). In LSV induction motors that are characterized by low voltage and high current, field-weakening control involves complex calculations that consider stator resistance. This approach has limitations in accurately reflecting motor parameter variations, which impacts its ability to achieve the maximum torque. Therefore, we utilized LUTs to achieve the maximum torque by considering motor parameter changes. In field-weakening region I, a LUT of the d-axis feedforward current was created based on speed and the q-axis reference current. In addition, the d-axis feedback current was calculated to compensate for the parameter discrepancies. In field-weakening region II, a LUT of the q-axis current limit was created based on speed and the d-axis reference current. The design with the proposed method is robust against parameter changes, ensuring the maximum torque per ampere throughout the entire field-weakening region. The experimental results confirm the validity of the proposed method.","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":"73 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141720480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0