Journal of Electrical Engineering & Technology最新文献_第10页

Geometric Approach to Solar Panels 太阳能电池板的几何方法

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-05-03 DOI: 10.1007/s42835-024-01905-9

Layth M. Alabdulsada

引用次数: 0

Design and Development of Self-Complementary DNA Structure-based Frequency Reconfigurable Antenna 基于自互补 DNA 结构的频率可重构天线的设计与开发

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-05-02 DOI: 10.1007/s42835-024-01917-5

K. Karthika, K. Kavitha

{"title":"Design and Development of Self-Complementary DNA Structure-based Frequency Reconfigurable Antenna","authors":"K. Karthika, K. Kavitha","doi":"10.1007/s42835-024-01917-5","DOIUrl":"https://doi.org/10.1007/s42835-024-01917-5","url":null,"abstract":"Nature-inspired patch antennas are gaining attention in wireless applications. A novel self-complementary Deoxyribonucleic Acid (DNA) structure-based frequency reconfigurable antenna is proposed in this work. DNA itself follows the golden ratio. The structure of the DNA-shaped antenna is modelled using Fibonacci numbers. The structure dimensions are 80 × 80 × 0.787 mm3. Rogers RT Duroid 5870 with a dielectric constant of 2.33 is used as a substrate. Techniques like the placement of the parasitic patch and Defected Ground Structure (DGS) are implemented and analyzed for gain enhancement. Parametric analysis has been carried out to achieve better radiation characteristics. The antenna is made reconfigurable by incorporating two PIN diode switches. The designed structure covers a wide band from 4.86 GHz to 6.12 GHz (WLAN) during an OFF-ON state. 0.988 GHz (Sub 1 GHz) and 4.58 GHz (5G) (dual band) are the resonating frequencies of the ON-OFF state. For the ON-ON state, the resonating frequencies are 2.67 GHz (WiMAX), 3.36 GHz (LTE), and 4.76 GHz (5G) (triple band). The proposed structure offers acceptable radiation performance. Fabrication and testing are done to validate the results. The simulated findings and the measured results agree quite well.","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":"42 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140885415","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

Fractional-Order Lead-Lag Compensation Control for Interleaved Buck-Boost Converters 交错降压-升压转换器的分数阶前导滞后补偿控制

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-05-01 DOI: 10.1007/s42835-024-01913-9

Lingling Xie, Enkun Tan, Jiajia Huang, Bin Liu

{"title":"Fractional-Order Lead-Lag Compensation Control for Interleaved Buck-Boost Converters","authors":"Lingling Xie, Enkun Tan, Jiajia Huang, Bin Liu","doi":"10.1007/s42835-024-01913-9","DOIUrl":"https://doi.org/10.1007/s42835-024-01913-9","url":null,"abstract":"As an important element of the renewable energy distribution generations, the modeling accuracy and control performance of the interleaved Buck-Boost converter directly affects the stability and efficiency of the renewable power generation. Based on the fact that the inductor and capacitance are fractional-order (FO) elements, the Buck-Boost converter is FO system. At present, most FO control strategy research has focused on the integer-order (IO) converters, which is inconsistent with the fractional order nature of converters. In order to improve the stability and dynamical performance of the FO interleaved Buck-Boost converter control system, a dual-loop control system based on the fractional-order lead-lag compensation control (FOLLCC) strategy is proposed. To begin with, the FO state space average model for interleaved Buck-Boost converter operating in continuous conduction mode (CCM) is established according to the FO calculus theory and state space average method. Then, the FOLLCC of the FO interleaved Buck-Boost is designed by using the peak current closed-loop control with inner current loop outer voltage loop. The impact of different FO controllers on the steady-state performance of the system is analyzed to improve the control effect. Using MATLAB for simulation, the simulation results show that the control system based on FOLLCC has shorter rise times, faster response speed, stronger robustness, and better dynamic performance. Finally, the experiments verify the effectiveness of the proposed approach.","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":"29 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140834650","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

Robust Fault-tolerant Fuzzy Filtering with Exponential Time-varying Gains for Sampled-data T-S Fuzzy Systems 为采样数据 T-S 模糊系统设计具有指数时变增益的稳健容错模糊滤波技术

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-04-16 DOI: 10.1007/s42835-024-01911-x

Ji Ho An, Han Sol Kim

引用次数: 0

Research on Out-of-Step Characteristics and Protection of Grid-Connected Converter 并网变流器的失步特性与保护研究

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-04-15 DOI: 10.1007/s42835-024-01910-y

Yanxia Zhang, Ziyang Zhang, Jinru Song

{"title":"Research on Out-of-Step Characteristics and Protection of Grid-Connected Converter","authors":"Yanxia Zhang, Ziyang Zhang, Jinru Song","doi":"10.1007/s42835-024-01910-y","DOIUrl":"https://doi.org/10.1007/s42835-024-01910-y","url":null,"abstract":"The grid-connected converter synchronizes with the power grid through the controller, so its out-of-step mechanism and out-of-step characteristics are different from synchronous generators. The out-of-step characteristics and out-of-step protection of grid-connected converter are urgent research topics at present. In this paper, the out-of-step mechanism of grid-connected converter under the low voltage ride through (LVRT) control strategy is analyzed by combining the phase plane method and the equal area criterion. The characteristics of current, voltage and measured impedance angle at the point of interconnection (PoI) are analyzed after the grid-connected converter is out-of-step, and compared with those of the traditional power system. On the basis of these, a novel out-of-step protection method for the grid-connected converter is proposed based on the measured impedance angle at the PoI. It judges the out-of-step by the characteristic that the measured impedance angle oscillates continuously and the difference of its extreme values increases gradually. The faster the out-of-step oscillation develops, the faster the protection acts, so it is adaptive. Finally, a MATLAB/Simulink simulation model is built to verify the effectiveness of the proposed protection method.","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":"82 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140572948","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

Deadbeat Indirect Torque Control of Switched Reluctance Motors with Current Vector Decomposition 利用电流矢量分解实现开关磁阻电机的死区间接转矩控制

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-04-14 DOI: 10.1007/s42835-024-01891-y

Di Liu, Yunsheng Fan, Jian Liu, Guofeng Wang, Dexin Sun

{"title":"Deadbeat Indirect Torque Control of Switched Reluctance Motors with Current Vector Decomposition","authors":"Di Liu, Yunsheng Fan, Jian Liu, Guofeng Wang, Dexin Sun","doi":"10.1007/s42835-024-01891-y","DOIUrl":"https://doi.org/10.1007/s42835-024-01891-y","url":null,"abstract":"This article presents an improved deadbeat indirect torque control (ITC) method for switched reluctance motors (SRMs) with the primary goal of reducing torque ripple. The proposed control approach comprises two parts: a torque-to-current conversion scheme that the proposed method achieves excellent current and a deadbeat controller (DBC). In the conversion scheme, a second-order SRM Fourier-series model is constructed by integrating the current vector decomposition method. Subsequently, an iterative learning controller (ILC) is designed based on this model to achieve precise conversion from the electromagnetic torque to the q-axis current, which eliminates the need for additional modeling processes. Within the proposed DBC controller, a novel recursive least squares (RLS) estimator is introduced to effectively tackle the issue of model variations. This integration enables the adaptive calibration of the predictive model, ultimately guaranteeing optimal performance in the current control. Furthermore, the consistency of the model employed in both the DBC and conversion scheme empowers the RLS to further refine the accuracy of torque-to-current conversion, thereby improving torque ripple suppression performance. Comparative experiments are conducted on a 12/8 SRM to evaluate the proposed control method’s performance. The experimental results show that the proposed method achieves excellent current tracking and torque ripple suppression performance in SRM drives.","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":"243 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140573034","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

Suppression of Harmonics in a Novel Multilevel Inverter Using Multi-Carrier Based PWM Technique 利用基于多载波的 PWM 技术抑制新型多电平逆变器中的谐波

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-04-12 DOI: 10.1007/s42835-024-01907-7

Amrita Singh, Sulata Bhandari, Jagdish Kumar

引用次数: 0

High-Efficiency Multiphase Stacked Interleaved DC-DC Buck Converter with Very Low Output Current Ripple and Low Current–Voltage Stress 具有极低输出电流纹波和低电流-电压应力的高效多相叠加交错直流-直流降压转换器

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-04-12 DOI: 10.1007/s42835-024-01896-7

Yi Pang, Wei-Lin Li, He-Xu Sun, Lei Pan, Fan-Tao Meng, Yin Liang

{"title":"High-Efficiency Multiphase Stacked Interleaved DC-DC Buck Converter with Very Low Output Current Ripple and Low Current–Voltage Stress","authors":"Yi Pang, Wei-Lin Li, He-Xu Sun, Lei Pan, Fan-Tao Meng, Yin Liang","doi":"10.1007/s42835-024-01896-7","DOIUrl":"https://doi.org/10.1007/s42835-024-01896-7","url":null,"abstract":"The production of hydrogen from electrolytic water using renewable energy is a highly effective way to reduce carbon emissions and has garnered significant attention from scholars around the world. As the crucial link between the electrolyzer and the DC bus, the performance of the DC-DC buck converter is paramount. Therefore, a multiphase stacked interleaved buck converter (MSIBC) is proposed in this paper, which offers superior performance in terms of low voltage, high current, and minimal current ripple. This paper delves into the circuit design methods and current ripple elimination mechanisms of this topology. Furthermore, a detailed analysis is conducted to compare the performance of MSIBC with that of interleaved buck converter (IBC) and stacked interleaved buck converter (SIBC), covering factors such as efficiency, inductor current stress, and switching current stress. The results indicate that MSIBC offers superior efficiency, low inductor current stress, and switching current stress. Additionally, MSIBC enables redundant control of the system. Finally, experimental and MATLAB/SIMULINK simulation results confirm the accuracy of ripple cancellation.","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":"41 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140572939","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

Loss Reduction in Gapped-Core-Type Shunt Reactors via Magnetic-Flux-Distribution Improvement 通过改善磁通量分布降低间隙铁芯型并联电抗器的损耗

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-04-12 DOI: 10.1007/s42835-024-01877-w

Moon-Sik Kang, Yun-Hyun Cho

{"title":"Loss Reduction in Gapped-Core-Type Shunt Reactors via Magnetic-Flux-Distribution Improvement","authors":"Moon-Sik Kang, Yun-Hyun Cho","doi":"10.1007/s42835-024-01877-w","DOIUrl":"https://doi.org/10.1007/s42835-024-01877-w","url":null,"abstract":"With the steadily increasing number of systems utilizing ultrahigh-voltage transmission lines, such as 765 kV and 400 kV substations, shunt reactors have come under the spotlight as a viable option to increase the load capacity and reduce losses. However, the cumulative losses during their operational life increase. In this study, we improved the magnetic flux of a yoke and analyzed its effect on loss reduction in the iron core. We applied a magnetic flux control structure that equalized the main and leakage fluxes generated from the main leg of a gapped core-type shunt reactor with the leakage flux generated from the winding. The magnetic flux generated by the yoke and its distribution in the in-plane direction with and without the flux-control plate were analyzed and compared using Maxwell’s three-dimensional finite element method. We evaluated the losses exhibited by two fabricated shunt reactors with a sensor installed on their iron cores to verify the effectiveness of improving the magnetic flux distribution of shunt reactors. The results confirmed that the magnetic flux control plate reduced the iron and winding eddy-current losses in the gapped core-type shunt reactor. Further investigations are required to minimize loss and noise throughout the operational lifespan of these reactors as well as to decrease the size and weight of shunt reactors for different applications.","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":"3 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140572943","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 PV Power Forecasting Based on Mechanism Model-Driven and Stacking Model Fusion 基于机制模型驱动和堆叠模型融合的光伏功率预测

IF 1.9 4区工程技术

Journal of Electrical Engineering & Technology Pub Date : 2024-04-12 DOI: 10.1007/s42835-024-01906-8

Fan Chen, Jinjin Ding, Qian Zhang, Junjie Wu, Fan Lei, Yifan Liu

{"title":"A PV Power Forecasting Based on Mechanism Model-Driven and Stacking Model Fusion","authors":"Fan Chen, Jinjin Ding, Qian Zhang, Junjie Wu, Fan Lei, Yifan Liu","doi":"10.1007/s42835-024-01906-8","DOIUrl":"https://doi.org/10.1007/s42835-024-01906-8","url":null,"abstract":"Accurate short-term forecasting of photovoltaic power generation is crucial for power dispatching, capacity analysis, and unit commitment. Existing data-driven prediction algorithms have a certain impact on calculation speed and prediction accuracy, but they fail to consider the internal mechanism of photovoltaic power generation and have the risk of generalization. First, the fuzzy C-means clustering (FCM) algorithm method was used for preprocessing of the PV sample set. The sample points with variability were categorized into different sample sets with less variability. Second, the photovoltaic mechanism model is added to the first layer learner of the Stacking framework to form a one-layer learner of the Long Short-Term Memory (LSTM) neural network, Light Gradient Boosting model (LGBM), and mechanism-driven model. The mechanistic model limits PV generation to a reasonable range as a prediction constraint for the data-driven model. The proposed model can seize the useful inherent information from the mechanism model and utilize the ability of data analysis to extract the inexplicit linear relationship. Finally, the PV power and weather observation data collected from photovoltaic power stations located in a certain place in Germany are used to verify the effectiveness of the proposed method.","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":"1 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140602913","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