IET Electrical Systems in Transportation最新文献_第3页

IF 2.2 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2025-10-22

引用次数: 0

Dual-Active-Bridge LC Resonant DC–DC Converter With an Auxiliary Boost Arm for Battery Energy Storage Systems 双有源桥LC谐振DC-DC变换器与辅助升压臂电池储能系统

IF 2.2 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2025-10-22 DOI: 10.1049/els2/4960116

Yisheng Yuan, Wei Liu

{"title":"Dual-Active-Bridge LC Resonant DC–DC Converter With an Auxiliary Boost Arm for Battery Energy Storage Systems","authors":"Yisheng Yuan, Wei Liu","doi":"10.1049/els2/4960116","DOIUrl":"10.1049/els2/4960116","url":null,"abstract":"This study presents a dual-active-bridge (DAB) LC resonant DC–DC converter for battery energy storage systems. The proposed converter adds an auxiliary bridge arm to the traditional full-bridge (FB) LC resonant converter as a boost arm. It features two efficient operating modes: a charging low-gain (CLG) mode and a discharging high-gain (DHG) mode. In CLG mode, the converter operates as an FB resonant PWM converter to achieve step-down functionality. In DHG mode, the boost arm is used for energy storage to increase the voltage gain. Both modes enable soft-switching operation across the entire load range. Additionally, the converter operates at a fixed switching frequency, simplifying the design of magnetic components. The converter has little magnetizing current and circulating current to increase the efficiency. The resonant capacitor in the converter has lower voltage stress and the transformer without air gap has lower leakage magnetic field, contributing to high power density. A prototype was developed, with batteries voltage of 40–60 V and high voltage DC bus of 360 V. Experimental results validate the feasibility of the proposed converter.","PeriodicalId":48518,"journal":{"name":"IET Electrical Systems in Transportation","volume":"2025 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/els2/4960116","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145366359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electromagnetic Analysis and Optimization of Ferrite-Assisted Double-Layer Halbach Permanent–Magnet Vernier Motor Based on Improved Cuckoo Search Grey Wolf Optimization Algorithm 基于改进布谷鸟搜索灰狼优化算法的铁氧体辅助双层Halbach永磁游标电机电磁分析与优化

IF 2.2 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2025-10-21 DOI: 10.1049/els2/3026869

Pin Lv, Haotian Ma, Rui Li, Xunwen Su, Ziyang Liu, Lulu Liu, Donghui Xu

{"title":"Electromagnetic Analysis and Optimization of Ferrite-Assisted Double-Layer Halbach Permanent–Magnet Vernier Motor Based on Improved Cuckoo Search Grey Wolf Optimization Algorithm","authors":"Pin Lv, Haotian Ma, Rui Li, Xunwen Su, Ziyang Liu, Lulu Liu, Donghui Xu","doi":"10.1049/els2/3026869","DOIUrl":"10.1049/els2/3026869","url":null,"abstract":"In order to improve the electromagnetic torque and stability of the drive motor for belt conveyors, and considering economic benefits, two ferrite assisted double-layer nonuniform Halbach array consequent-pole (DNHC-permanent magnet synchronous motors[PMVM]) are proposed: DNHC-PMVMA and DNHC-PMVMB. The main magnetic pole of DNHC-PMVM rotor adopts DNH rare earth permanent magnet, and ferrite is used as the auxiliary magnetic pole of stator and rotor. The rationality of the proposed structure is verified by comparing and analyzing PMVM, DNHC-PMVMA, and DNHC-PMVMB by finite method. In order to further optimize the motor structure, the cuckoo search (CS) grey wolf optimization (CSGWO)algorithm is improved, and the improvement strategies such as circle chaotic mapping are introduced. After multiobjective optimization test, it is proved that the comprehensive performance of improved CSGWO (ICSGWO) is better than that of CSGWO, GWO algorithm, particle swarm optimization (PSO), and other algorithms. Based on the response surface method (RSM), ICSGWO, and parameter scanning, the three motor structures are optimized, respectively. The finite element method is used to analyze the three optimized motors. The results show that the performance parameters such as electromagnetic torque and torque ripple are significantly improved, which verifies the effectiveness of the optimization method. Meanwhile, the performance parameters of DNHC-PMVM are significantly better than those of PMVM, which proves the superiority of the proposed structure.","PeriodicalId":48518,"journal":{"name":"IET Electrical Systems in Transportation","volume":"2025 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/els2/3026869","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145366320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IF 2.2 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2025-10-21

引用次数: 0

Dual-strategy approach for fabricating high-performance ZnO varistors 制备高性能ZnO压敏电阻的双策略方法

4区工程技术

IET Electrical Systems in Transportation Pub Date : 2025-10-01 DOI: 10.1049/icp.2025.3041

Jin Hu, Xuetong Zhao, Qi Wang, X. T. Hou

引用次数: 0

IF 2.2 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2025-09-24

引用次数: 0

Optimal Energy Efficiency in a Mass Rapid Transit System Through DC Traction Substation Voltage Control Utilizing Particle Swarm Optimization 基于粒子群算法的直流牵引变电站电压控制在轨道交通系统中的最优能效

IF 2.2 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2025-09-24 DOI: 10.1049/els2/5531109

Waiard Saikong, Banri Khemkladmuk, Chaiyut Sumpavakup, Chanchai Techawatcharapaikul, Thanatchai Kulworawanichpong

{"title":"Optimal Energy Efficiency in a Mass Rapid Transit System Through DC Traction Substation Voltage Control Utilizing Particle Swarm Optimization","authors":"Waiard Saikong, Banri Khemkladmuk, Chaiyut Sumpavakup, Chanchai Techawatcharapaikul, Thanatchai Kulworawanichpong","doi":"10.1049/els2/5531109","DOIUrl":"10.1049/els2/5531109","url":null,"abstract":"This article discusses voltage level modifications in urban mass transit traction substations, focusing on DC railway substations, to reduce power consumption and improve energy efficiency. Substation voltage settings are usually adjusted by a skilled designer using practical judgment and design acumen. To maximize operations, all traction substation voltage levels are automatically adjusted to the same value. This arrangement works well and may not have affected the power supply system. This design often causes operations to deviate from optimal performance, perhaps reducing energy efficiency. This research seeks to determine the optimal traction substation voltage setting that minimizes total energy consumption of DC electric railways. A simulation-based approach is applied using train movement data and voltage variation scenarios. The proposed designs are linear, V-shaped, and fixed-voltage. Additionally, particle swarm optimization (PSO) is an effective way to find the best design. The Bangkok Transit System (BTS) Sukhumvit line is used for testing. Reduction by the linear framework, energy consumption may be 2.341% lower than the base case. By the PSO, the results in 30 trial test runs suggest a 6.107% energy consumption reduction from baseline.","PeriodicalId":48518,"journal":{"name":"IET Electrical Systems in Transportation","volume":"2025 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/els2/5531109","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145146372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Novel Secretary Bird Optimization-Based Frequency and Voltage Control of Single Area and Multi Area Power Systems With Hydrogen-Based Energy and Electric Vehicle Integration 基于秘书鸟优化的氢能源与电动汽车一体化单区域和多区域电力系统频率和电压控制

IF 2.2 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2025-08-22 DOI: 10.1049/els2/6401188

Hiramani Shukla, Anupam Kumar

{"title":"A Novel Secretary Bird Optimization-Based Frequency and Voltage Control of Single Area and Multi Area Power Systems With Hydrogen-Based Energy and Electric Vehicle Integration","authors":"Hiramani Shukla, Anupam Kumar","doi":"10.1049/els2/6401188","DOIUrl":"10.1049/els2/6401188","url":null,"abstract":"This article introduces simultaneous control of oscillations in voltage and frequency within a single-area power system that includes hydrogen energy and electrical vehicles as source. The study focuses on the critical roles played by Automatic Voltage Regulator (AVR) and Automatic Generation Control (AGC) loops in maintaining frequency and voltage stability. The article incorporates renewable energy sources (RESs) in this investigation, like photovoltaic (PV) systems, fuel cells (FCs), and aqua electrolyzers (AEs) into the power grid. Energy storage and electric vehicle integration have also been included in the research to see how they affect the reduction of frequency and voltage oscillations. This study also examined the impact of communication time delays (Tds), which may be the cause of system instability in real-power systems. The proportional integral derivative (PID) controller is selected as a subsidiary controller for the combined study of AGC and AVR, and its efficacy in terms of operation is contrasted with classical I and PI controllers and other control techniques from the literature. A recently developed Secretary Bird Optimization (SBO) algorithm is selected for obtaining the parameters of the controller. This article contributes valuable insights into power system stability enhancement.","PeriodicalId":48518,"journal":{"name":"IET Electrical Systems in Transportation","volume":"2025 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/els2/6401188","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144891646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IF 2.2 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2025-08-22

引用次数: 0

IF 2.2 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2025-08-07

引用次数: 0