IET Power Electronics最新文献

A Novel SiC MOSFET With a Reach-Through NPN Structure for Enhancing Reverse Performance 一种具有可达通NPN结构的新型SiC MOSFET，可提高反向性能

IF 1.7 4区工程技术

IET Power Electronics Pub Date : 2025-06-04 DOI: 10.1049/pel2.70050

Shan Lu, Dong Liu, Yi Kang, Xiaolong Lu, Xiarong Hu

引用次数: 0

An Improved Model Parameter-Free Predictive Control With Fast Gradient Updating for Three-phase Three-Level Inverters 一种改进的三相三电平逆变器无模型参数快速梯度更新预测控制

IF 1.7 4区工程技术

IET Power Electronics Pub Date : 2025-06-03 DOI: 10.1049/pel2.70064

Zhengkui Zhao, Minxiao Han

引用次数: 0

Review on the Thermal Models Applications in the Reliability of Power Semiconductor Device 热模型在功率半导体器件可靠性研究中的应用综述

IF 1.7 4区工程技术

IET Power Electronics Pub Date : 2025-06-03 DOI: 10.1049/pel2.70065

Jun Zhang, Huixian Shen, Haiyan Sun, Zhihuan Wang

引用次数: 0

Hybrid-Frequency Power Loop to Eliminate Negative-Sequence Current for Star-Connected Cascaded H-Bridge STATCOM 星连接级联h桥STATCOM中消除负序电流的混频功率环路

IF 1.7 4区工程技术

IET Power Electronics Pub Date : 2025-06-02 DOI: 10.1049/pel2.70060

Zhendong Ji, Kangli Liu, Wei Liu, Yichao Sun, Dongye Li, Jianhua Wang, Xiaodan Wu, Jianfeng Zhao

{"title":"Hybrid-Frequency Power Loop to Eliminate Negative-Sequence Current for Star-Connected Cascaded H-Bridge STATCOM","authors":"Zhendong Ji, Kangli Liu, Wei Liu, Yichao Sun, Dongye Li, Jianhua Wang, Xiaodan Wu, Jianfeng Zhao","doi":"10.1049/pel2.70060","DOIUrl":"https://doi.org/10.1049/pel2.70060","url":null,"abstract":"Since the power grid frequently experiences asymmetric operation caused by the unbalanced power load, the current compensation for the negative-sequence component is typically required to control the star-connected cascaded H-bridge STATCOM. However, the compensation range of the negative-sequence current injection is usually limited. This paper proposes a novel STATCOM topology by adding an interphase high-frequency power loop to extend the compensation range. It only adds two groups of RLC resonators, upon which the extra high-frequency resonant voltage is injected to transfer and redistribute power among the three phases. A control strategy considering the hybrid-frequency power loop is further proposed by analysing the proposed working principle of the proposed structure. In addition, comprehensive quantitative assessments, including the compensation capability for the negative-sequence current, the added volume/weight, and system efficiency, are conducted and compared. Finally, the comparative experimental results verify the effectiveness of the proposed analysis and method.","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"18 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.70060","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197359","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

Loop-Shaping Control Design for a New Modular Integrated On-Board EV Charger with RHP Zero Compensation 一种新型RHP零补偿模块化集成车载充电器的环整形控制设计

IF 1.7 4区工程技术

IET Power Electronics Pub Date : 2025-06-02 DOI: 10.1049/pel2.70061

Fatemeh Nasr Esfahani, Ahmed Darwish, Ahmed Massoud

{"title":"Loop-Shaping Control Design for a New Modular Integrated On-Board EV Charger with RHP Zero Compensation","authors":"Fatemeh Nasr Esfahani, Ahmed Darwish, Ahmed Massoud","doi":"10.1049/pel2.70061","DOIUrl":"https://doi.org/10.1049/pel2.70061","url":null,"abstract":"This paper presents the control design of a new modular integrated on-board charger (MIOBC) for electric vehicle (EV) applications. Unlike traditional EV systems with a single high-voltage (HV) battery, charger, and motor controller, the proposed MIOBC modularises both the battery and power converters, enhancing safety, controllability, and fault-ride-through (FRT) capability. Integrating the traction inverter with the on-board charger (OBC) reduces system size and weight while enabling seamless operation in three modes: charging, acceleration, and deceleration. The MIOBC employs single-stage Cuk-based converter topologies as submodules (SMs), which provide continuous input and output currents, handle a wide range of input voltages, and produce low electromagnetic interference (EMI). To address control challenges posed by right-half-plane (RHP) zeros in Cuk converters, loop-shaping techniques are applied using proportional-integral (PI), proportional-resonant (PR), and lead-lag compensators. These methods ensure sufficient phase margin (PM) and gain margin (GM) for robust, stable performance within the desired bandwidth (BW). This paper details the operating principles, controller design, and efficiency analysis. A 3 kW prototype was tested using Lancaster University's Formula Student (FS) racing car, demonstrating not only the robustness of the control strategy under partial faults in battery segments but also confirming the MIOBC system's ability to achieve a tested peak efficiency of 94.8% across a range of output powers.","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"18 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.70061","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190947","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

The Hierarchical Structure and Control Signal Transmission of Microgrid Hierarchical Control: A Review 微电网层次控制的层次结构与控制信号传输综述

IF 1.7 4区工程技术

IET Power Electronics Pub Date : 2025-05-30 DOI: 10.1049/pel2.70057

Jie Liu, Xiangtao Zhuan, Lei Shang, Shi Su, Qingyang Xie

{"title":"The Hierarchical Structure and Control Signal Transmission of Microgrid Hierarchical Control: A Review","authors":"Jie Liu, Xiangtao Zhuan, Lei Shang, Shi Su, Qingyang Xie","doi":"10.1049/pel2.70057","DOIUrl":"https://doi.org/10.1049/pel2.70057","url":null,"abstract":"Microgrids, as an important component of modern power systems, have garnered significant attention due to their ability to operate flexibly, enhance power supply reliability, and improve the integration of renewable energy sources. As distributed generation and renewable energy continue to merge, microgrid operation faces significant challenges, including intermittency in generation and load, power balance issues, as well as frequency and voltage stability. Hierarchical control has become an effective strategy to address these complexities. This paper provides a comprehensive review of the structure and control objectives of microgrid hierarchical control, analysing in depth the differences and interrelationships between control levels in terms of timescale, hardware components, control tasks, decision-making mechanisms, and communication methods. By systematically organizing the responsibilities and coordination between control layers, this paper clarifies the pathways for control signal transmission and feedback mechanisms. By integrating the relationships between different hierarchical control strategies, this paper lays a theoretical foundation for the efficient and stable operation of microgrids, offering researchers an overall perspective on the interactions and coordination between control layers.","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"18 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.70057","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171629","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

Design of a Robust Adaptive Cascade Fractional-Order Nonlinear-Based Controller Enhanced Using Grey Wolf Optimization for High-Power DC/DC Dual Active Bridge Converter in Electric Vehicles 基于灰狼优化的大功率DC/DC双有源桥式变换器鲁棒自适应级联分数阶非线性控制器设计

IF 1.7 4区工程技术

IET Power Electronics Pub Date : 2025-05-21 DOI: 10.1049/pel2.70056

SeyyedMorteza Ghamari, Daryoush Habibi, Mehrdad Ghahramani, Asma Aziz

{"title":"Design of a Robust Adaptive Cascade Fractional-Order Nonlinear-Based Controller Enhanced Using Grey Wolf Optimization for High-Power DC/DC Dual Active Bridge Converter in Electric Vehicles","authors":"SeyyedMorteza Ghamari, Daryoush Habibi, Mehrdad Ghahramani, Asma Aziz","doi":"10.1049/pel2.70056","DOIUrl":"https://doi.org/10.1049/pel2.70056","url":null,"abstract":"The dual active bridge (DAB) converter is a key technology in electric vehicles (EVs), offering efficient, bidirectional DC–DC power conversion with galvanic isolation. This paper presents a novel cascade control strategy incorporating a fractional-order PID (FOPID) controller in the outer loop for precise voltage regulation and an adaptive backstepping controller (ABSC) in the inner loop for robust current control. The ABSC is designed using Lyapunov stability theory, ensuring systematic stabilization of nonlinear dynamics and robust performance under disturbances. The FOPID controller introduces superior filtering characteristics, effectively mitigating high-frequency measurement noise and transient disturbances, making it highly suitable for high-frequency power electronics applications. A capacitor–inductor–inductor–capacitor filter is integrated with the DAB converter to achieve soft switching, improve efficiency, and reduce switching losses, particularly in high-power applications. The grey wolf optimization (GWO) algorithm is employed to fine-tune the gains of both control loops, balancing exploration and exploitation to ensure optimal performance. The proposed controller is validated through hardware-in-loop (HIL) experiments, including testing with a HIL-emulated battery. The battery's behaviour is analysed under various conditions, including state-of-charge variations, demonstrating the controller's effectiveness in managing charging and discharging cycles. Results confirm that the robust adaptive cascade controller significantly enhances the reliability and efficiency of DAB converters, making it ideal for real-world EVs and renewable energy applications.","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"18 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.70056","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108858","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

An Efficiency Optimization Strategy for Paralleled Phase-Shift Full-Bridge Modules 并联移相全桥模块的效率优化策略

IF 1.7 4区工程技术

IET Power Electronics Pub Date : 2025-05-20 DOI: 10.1049/pel2.70055

Jizhou Liu, Chunyin Gong, Yiyun Zhang

引用次数: 0

Research on Non-Linearity of H-Bridge Converter in Magnetic Suspension System Based on LRC Model 基于LRC模型的磁悬浮系统h桥变换器非线性研究

IF 1.7 4区工程技术

IET Power Electronics Pub Date : 2025-05-19 DOI: 10.1049/pel2.70054

Li Ji, Yuqiang Xiang, Meihao Chen

{"title":"Research on Non-Linearity of H-Bridge Converter in Magnetic Suspension System Based on LRC Model","authors":"Li Ji, Yuqiang Xiang, Meihao Chen","doi":"10.1049/pel2.70054","DOIUrl":"https://doi.org/10.1049/pel2.70054","url":null,"abstract":"The power amplifier, which regulates the excitation current, is the pivotal component of the magnetic suspension system. The control loop exhibits chaos and bifurcation phenomena due to the non-linear characteristics of the switching devices. This paper explores the non-linearity of the three-level H-bridge converter in the magnetic suspension system. First, the load coil's equivalent Inductance-Resistance-Capacitance (LRC) and Inductance-Resistance (LR) models are established, considering the current ringing effect induced by switching devices and the delay introduced by digital control. Then, Poincaré projection bifurcation diagrams of the excitation current are plotted using the proportional and integral bifurcation coefficients as dynamic variables, and the fast-transform analysis method is employed to determine the bifurcation points of the system. Finally, experimental comparisons are performed to analyse the chaotic motion trajectories of the excitation current under identical conditions in both the LRC and traditional LR models. The results indicate the compatibility of the LRC model-based analysis with the experimental data. Furthermore, the results reveal that although the time delay in the control system reduces the stability range of the static parameters, it does not alter the nature of the bifurcation or how the chaos is generated.","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"18 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.70054","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085289","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

DC/AC Stage Parameters Design Method for Dual-Mode Control DC/DC-DC/AC Converter System 双模控制DC/DC-DC/AC变换器系统DC/AC级参数设计方法

IF 1.7 4区工程技术

IET Power Electronics Pub Date : 2025-05-19 DOI: 10.1049/pel2.70047

Di Kang, Hongliang Wang, Yang Jiang, Yibo Si, Xi Gui, Xiaonan Zhu, Xiumei Yue

{"title":"DC/AC Stage Parameters Design Method for Dual-Mode Control DC/DC-DC/AC Converter System","authors":"Di Kang, Hongliang Wang, Yang Jiang, Yibo Si, Xi Gui, Xiaonan Zhu, Xiumei Yue","doi":"10.1049/pel2.70047","DOIUrl":"https://doi.org/10.1049/pel2.70047","url":null,"abstract":"Recently, a DC/DC–DC/AC converter system using dual-mode control to increase efficiency has been actively studied by many researchers. Due to the similar maximum voltage and current stress of switches for dual-mode control and traditional two-stage control, the same switches and switching frequency are chosen in the existing literature. However, under dual-mode control, the DC/AC stage switches discontinuously operate at high frequency, and the amplitude of the sinusoidal pulse width modulation (SPWM)wave is lower than that under traditional two-stage control. Thus, there is an issue that the selected switches have excessive performance when using dual-mode control. The DC/AC stage parameters, including switching frequency and the LC filter, are unreasonable. To solve that issue, this article proposes a new DC/AC stage parameter design method for dual-mode control the DC/DC–DC/AC converter system. The proposed method makes an overall design of the switching frequency, inductor, and capacitor. The switching frequency is increased on 100 kHz with slight influence of total loss and efficiency. The LC filter for the dual-mode control DC/DC–DC/AC converter system is diminished by more than 50% in a 1 kW case, which reduces the weight, volume, and cost of the converter system. The calculation and experimental results based on a 1 kW prototype verify the validity of the proposed method.","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"18 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.70047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085288","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