International Journal of Circuit Theory and Applications最新文献_第10页

A Light-Computational Model Predictive Control With Current Enhancement for PMSMs Based on Discrete Space Vector Modulation 基于离散空间矢量调制的永磁同步电机轻计算模型预测控制

IF 1.4 3区工程技术

International Journal of Circuit Theory and Applications Pub Date : 2026-07-05 Epub Date: 2025-11-16 DOI: 10.1002/cta.70209

Zhihao Zhu, Xile Wei, Feng Yu, Ruixue Han, Zhen Zhang

{"title":"A Light-Computational Model Predictive Control With Current Enhancement for PMSMs Based on Discrete Space Vector Modulation","authors":"Zhihao Zhu, Xile Wei, Feng Yu, Ruixue Han, Zhen Zhang","doi":"10.1002/cta.70209","DOIUrl":"https://doi.org/10.1002/cta.70209","url":null,"abstract":"<div>\u0000 \u0000 <p>Although the model predictive control (MPC) with discrete space vector modulation (DSVM) can effectively mitigate current ripple, thus reducing torque ripple, the computational burden increases dramatically with candidate voltage vectors. In this paper, a light-computational MPC with current enhancement for permanent magnet synchronous machines based on DSVM is proposed, aiming to decrease the computational complexity and further improve the performance of the MPC with DSVM. Different from the existing DSVM, the proposed DSVM synthesizes virtual voltage vectors using only four real voltage vectors. In addition, it is noteworthy that the duty cycles of three nonzero voltage vectors corresponding to the virtual voltage vector are also duty cycles of the inverter upper bridge arms, thus eliminating the inverter switching signal calculation. Based on the proposed DSVM strategy, a voltage vector preselection method is designed to reduce candidate voltage vectors by four. Thereafter, voltage vectors around the optimal voltage vector are extended to further enhance current performance. Experiments are conducted on a 2-kW electric drive platform to verify the feasibility and effectiveness of the proposed method.</p>\u0000 </div>","PeriodicalId":13874,"journal":{"name":"International Journal of Circuit Theory and Applications","volume":"54 7","pages":"3617-3629"},"PeriodicalIF":1.4,"publicationDate":"2026-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148389206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 Novel Dual-Switch Capacitor Series DC Transformer Topology With Faults and Inrush Current Suppression 一种具有故障和抑制涌流的新型双开关电容串联直流变压器拓扑结构

IF 1.4 3区工程技术

International Journal of Circuit Theory and Applications Pub Date : 2026-07-05 Epub Date: 2025-11-11 DOI: 10.1002/cta.70189

Yao Liu, Zhihua Gao, Guangze Shi, Jianfu Chen, Fang Guo

{"title":"A Novel Dual-Switch Capacitor Series DC Transformer Topology With Faults and Inrush Current Suppression","authors":"Yao Liu, Zhihua Gao, Guangze Shi, Jianfu Chen, Fang Guo","doi":"10.1002/cta.70189","DOIUrl":"https://doi.org/10.1002/cta.70189","url":null,"abstract":"<div>\u0000 \u0000 <p>The DC transformer serves as a crucial interface between multiterminal flexible DC distribution networks, DC loads, and DC microgrids. This paper introduces a topology for a dual switched capacitor series DC transformer designed specifically for multiterminal flexible DC distribution networks. The proposed structure effectively locks the series module during medium-voltage DC side short circuit faults, blocking capacitor discharge and swiftly isolating the fault to restore normal operation. Additionally, this topology addresses the issue of step-like power flow fluctuations caused by instantaneous communication faults, which typically result in power flow diverting to the transformer with the lowest impedance and triggering protective shutdowns. By employing the dual switch capacitor series module to block external surges, the system's reliability is significantly enhanced. Compared with the conventional full-bridge + DAB topology, our approach eliminates two switching tubes, thus offering benefits like suppressed fault and inrush currents, improved efficiency, and reduced economic costs. The effectiveness and practicality of the proposed method are substantiated through simulations and extensive engineering tests, underscoring its significant engineering value.</p>\u0000 </div>","PeriodicalId":13874,"journal":{"name":"International Journal of Circuit Theory and Applications","volume":"54 7","pages":"3568-3579"},"PeriodicalIF":1.4,"publicationDate":"2026-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148389142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Improved Grid Current Control Strategy Based on Q-Axis Regulation and Phase Compensation for Reduced dc-Link Capacitance PMSM Drives With Large Line Inductor 基于q轴调节和相位补偿的改进栅极电流控制策略在大线电感直流电容PMSM驱动器中的应用

IF 1.4 3区工程技术

International Journal of Circuit Theory and Applications Pub Date : 2026-07-05 Epub Date: 2025-11-27 DOI: 10.1002/cta.70234

Jiangjie Yan, Feng Yu, Xiaoxin Wu, Lianggang Qiu

{"title":"Improved Grid Current Control Strategy Based on Q-Axis Regulation and Phase Compensation for Reduced dc-Link Capacitance PMSM Drives With Large Line Inductor","authors":"Jiangjie Yan, Feng Yu, Xiaoxin Wu, Lianggang Qiu","doi":"10.1002/cta.70234","DOIUrl":"https://doi.org/10.1002/cta.70234","url":null,"abstract":"<div>\u0000 \u0000 <p>LC resonance is the primary cause of poor grid current quality in reduced <i>dc</i>-link capacitance permanent magnet synchronous motor (PMSM) drives with large line inductance. In this paper, a strategy of <i>q</i>-axis regulation and phase compensation based on a proportional resonance controller (QRPC-PR) is proposed to suppress LC resonance and enhance the quality of the grid current. Initially, a small-signal model is developed based on a simplified circuit of the drive system to elucidate the LC resonance. It results in the decreased power factor, increased harmonics in the grid current, and instability issue. Then, a damping compensation loop based on the deviation between ideal <i>dc</i>-link voltage and actual <i>dc</i>-link voltage is established to enhance the stability of the drive system, and the comparative analysis is conducted on the damping loop controllers with different parameters. In addition, by modifying the phase and amplitude of the <i>dc</i>-link voltage, the grid current quality is further improved. In comparison with conventional <i>q</i>-axis regulation strategies, the power factor is increased to 0.99, and the grid current harmonics are obviously reduced. Finally, experiments on PMSM drives without electrolytic capacitors verify the effectiveness of the proposed strategy.</p>\u0000 </div>","PeriodicalId":13874,"journal":{"name":"International Journal of Circuit Theory and Applications","volume":"54 7","pages":"3724-3735"},"PeriodicalIF":1.4,"publicationDate":"2026-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148389149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 Phase-Scalable Interleaved High-Gain Non-Isolated DC-DC Converter for Green Energy Applications 用于绿色能源应用的相位可扩展交错高增益非隔离DC-DC变换器

IF 1.4 3区工程技术

International Journal of Circuit Theory and Applications Pub Date : 2026-07-05 Epub Date: 2025-11-25 DOI: 10.1002/cta.70231

Berat Uzun, Furkan Akar

{"title":"A Phase-Scalable Interleaved High-Gain Non-Isolated DC-DC Converter for Green Energy Applications","authors":"Berat Uzun, Furkan Akar","doi":"10.1002/cta.70231","DOIUrl":"https://doi.org/10.1002/cta.70231","url":null,"abstract":"<div>\u0000 \u0000 <p>High-gain non-isolated DC-DC converters are critical in renewable energy applications, but existing topologies often face challenges in modularity, common grounding, and input current minimization, limiting their scalability and practical implementation. This paper introduces a novel phase-scalable, interleaved high-gain converter derived from the quasi Z-source (qZc) structure, which connects qZs cells in parallel at the input and in series at the output. The proposed topology provides uniform interleaving, modularity, and common grounding, addressing key limitations of existing solutions. Analytical modeling, small-signal analysis, and control design are employed to implement a two-phase prototype, experimentally validated at 200 W. Results demonstrate stable operation over a 30- to 40-V input range, with a regulated 200-V output and reduced input ripple. The proposed architecture enables scalable voltage gain, reduced current stress, and simplified control for multi-phase expansion. These findings highlight both the novelty and practical applicability of the converter, offering a versatile solution for modern renewable energy systems.</p>\u0000 </div>","PeriodicalId":13874,"journal":{"name":"International Journal of Circuit Theory and Applications","volume":"54 7","pages":"3517-3530"},"PeriodicalIF":1.4,"publicationDate":"2026-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148389118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Development and Evaluation of a High-Gain Multiport DC–DC Converter for Electric Vehicle Applications: A Compact and Efficient Approach 一种用于电动汽车的高增益多端口DC-DC转换器的开发与评估：一种紧凑而高效的方法

IF 1.4 3区工程技术

International Journal of Circuit Theory and Applications Pub Date : 2026-07-05 Epub Date: 2025-11-30 DOI: 10.1002/cta.70232

S. Vengatraman, Elankurisil S.A.

引用次数: 0

Design and Efficiency Optimization of a High-Power Capacitive Power Transfer System 大功率电容式功率传输系统的设计与效率优化

IF 1.6 3区工程技术

International Journal of Circuit Theory and Applications Pub Date : 2026-06-01 Epub Date: 2025-10-14 DOI: 10.1002/cta.70185

Gang Yang, Pan Sun, Yan Liang, Xiaochen Zhang, Haomin Shen

{"title":"Design and Efficiency Optimization of a High-Power Capacitive Power Transfer System","authors":"Gang Yang, Pan Sun, Yan Liang, Xiaochen Zhang, Haomin Shen","doi":"10.1002/cta.70185","DOIUrl":"https://doi.org/10.1002/cta.70185","url":null,"abstract":"<div>\u0000 \u0000 <p>The demand for high-power wireless power transfer (WPT) systems has been increasing in recent years. However, most of the available research works on high-power transfer are focused on inductive power transfer (IPT) systems. Compared with IPT, capacitive power transfer (CPT) offers advantages such as light weight, low cost, and simple structure. In this paper, the design and efficiency optimization method of a high-power CPT system is proposed. Firstly, an input-parallel output-parallel (IPOP) multi-channel topology is established for high-power CPT systems, and the transmission characteristics are analyzed. A multi-channel coupler with shielding plates is designed, and the equivalent circuit model of the coupler is developed based on the induced current source model. Then, the factors affecting efficiency are investigated, and an optimization method is proposed to enhance the overall system efficiency. Finally, an experimental platform of a 10-kW IPOP three-channel CPT system is built. Experimental results show that the output power is three times that of a single-channel CPT system, with a dc–dc efficiency of 94.2%. The correctness and effectiveness of the design and optimization method are validated.</p>\u0000 </div>","PeriodicalId":13874,"journal":{"name":"International Journal of Circuit Theory and Applications","volume":"54 6","pages":"3067-3081"},"PeriodicalIF":1.6,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148110064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Comparative Study of High-Frequency Oscillations in a DC–DC Converter Topologies DC-DC变换器拓扑结构高频振荡的比较研究

IF 1.6 3区工程技术

International Journal of Circuit Theory and Applications Pub Date : 2026-06-01 Epub Date: 2025-10-23 DOI: 10.1002/cta.70157

Ch. Chandra Sekhar, C. Nagamani, G. Saravana Ilango

{"title":"Comparative Study of High-Frequency Oscillations in a DC–DC Converter Topologies","authors":"Ch. Chandra Sekhar, C. Nagamani, G. Saravana Ilango","doi":"10.1002/cta.70157","DOIUrl":"https://doi.org/10.1002/cta.70157","url":null,"abstract":"<div>\u0000 \u0000 <p>High-frequency oscillations (HFOs) in isolated bidirectional DC–DC converters, such as partially isolated four port (PIFP), triple active bridge (TAB), and quad active bridge (QAB) configurations, pose significant challenges to their performance and reliability. These converters, crucial for efficient energy transfer in renewable energy systems, electric vehicles, and energy storage applications, are susceptible to HFOs due to parasitic elements and nonlinearities in switching devices. This paper investigates the causes and effects of HFOs in PIFP, TAB, and QAB converters by modelling high-frequency transformers with parasitic element analysis and extracting parasitic elements using mathematical modelling, simulation, and experimental validation. Key parameters causing HFOs are identified, and power losses due to HFOs are estimated. An experimental 2.5-kW hardware prototype is developed to validate the theoretical findings, providing practical insights and confirming the simulation results. The study underscores the importance of managing parasitic elements and advanced modelling to mitigate HFOs, enhancing the efficiency and reliability of isolated bidirectional DC–DC converters.</p>\u0000 </div>","PeriodicalId":13874,"journal":{"name":"International Journal of Circuit Theory and Applications","volume":"54 6","pages":"3143-3155"},"PeriodicalIF":1.6,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148119991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 Triple-Channel Phase-Shift Voltage Regulation-Based Control Strategy for Underwater Wireless Charging Systems 基于三通道移相电压调节的水下无线充电系统控制策略

IF 1.6 3区工程技术

International Journal of Circuit Theory and Applications Pub Date : 2026-06-01 Epub Date: 2025-10-03 DOI: 10.1002/cta.70159

Yongqin zhou, Li Li, Xiaoyu Zhang, Qiaobei Wang, Chengcheng Tu

{"title":"A Triple-Channel Phase-Shift Voltage Regulation-Based Control Strategy for Underwater Wireless Charging Systems","authors":"Yongqin zhou, Li Li, Xiaoyu Zhang, Qiaobei Wang, Chengcheng Tu","doi":"10.1002/cta.70159","DOIUrl":"https://doi.org/10.1002/cta.70159","url":null,"abstract":"<div>\u0000 \u0000 <p>Based on three-channel phase-shift voltage regulation, this paper proposes a control strategy for underwater wireless charging systems in order to address efficiency degradation and weak misalignment tolerance during wide voltage gain output. The strategy adopts a spatially decoupled three-channel coupling structure and constructs a distributed half-bridge topology, where three independent power transmission channels are generated by controlling three transmitting coils via half-bridge circuits. The strategy is able to switch system operation modes and adjust phase-shift angles between channels, so that output voltage can be regulated flexibly within a broad range, and zero phase angle (ZPA) operation for voltage and current can be maintained in each power transmission channel to improve power transfer efficiency. As demonstrated by the simulation and experimental results, the control strategy exhibits strong wide voltage gain regulation, misalignment tolerance, and fault tolerance capabilities.</p>\u0000 </div>","PeriodicalId":13874,"journal":{"name":"International Journal of Circuit Theory and Applications","volume":"54 6","pages":"3184-3198"},"PeriodicalIF":1.6,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148130861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Research on Voltage Oscillation Suppression of SiC MOSFETs Based on Gate-Notch Filter and PCB Optimization 基于栅极陷波滤波和PCB优化的SiC mosfet电压振荡抑制研究

IF 1.6 3区工程技术

International Journal of Circuit Theory and Applications Pub Date : 2026-06-01 Epub Date: 2025-10-08 DOI: 10.1002/cta.70174

Jiajia Li, Changzhou Yu, Haizhen Xu, Jinfang Liu, Yifei Wang, Junhua Dong, Shaolin Yu

{"title":"Research on Voltage Oscillation Suppression of SiC MOSFETs Based on Gate-Notch Filter and PCB Optimization","authors":"Jiajia Li, Changzhou Yu, Haizhen Xu, Jinfang Liu, Yifei Wang, Junhua Dong, Shaolin Yu","doi":"10.1002/cta.70174","DOIUrl":"https://doi.org/10.1002/cta.70174","url":null,"abstract":"<div>\u0000 \u0000 <p>Wide-bandgap devices, exemplified by SiC MOSFETs, significantly enhance the performance of power converters due to their high switching speed. However, such rapid switching introduces oscillations within the circuit, leading to additional voltage stress on the power devices, increased electromagnetic interference (EMI), and potential threats to system stability. To suppress these switching oscillations, this paper first establishes a model of a SiC MOSFET-based half-bridge circuit that includes parasitic parameters, and subsequently analyzes the switching transient states in a segmented manner. On this basis, a gate-notch filter is designed, and an initial estimation of its parameters is derived through a dynamic characterization approach based on the transfer function. Furthermore, an oscillation-characteristic index function is constructed, and the filter parameters are finely optimized using the Pareto front method. Additionally, the influence of power loop parasitic parameters on oscillation is evaluated by analyzing circuit states during switching transients. To mitigate these parasitics, an optimized PCB layout for the power loop is proposed, which achieves partial cancellation of leakage inductance through layered stacking. The effectiveness of the proposed oscillation suppression method is validated through both simulation and experimental results, demonstrating improved system stability.</p>\u0000 </div>","PeriodicalId":13874,"journal":{"name":"International Journal of Circuit Theory and Applications","volume":"54 6","pages":"3108-3127"},"PeriodicalIF":1.6,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148135056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 Retired Power Battery Integrated System That Implements Battery Pack SOC Balancing and Fast Balancing Strategy Design 实现电池组SOC均衡与快速均衡策略设计的退役动力电池集成系统

IF 1.6 3区工程技术

International Journal of Circuit Theory and Applications Pub Date : 2026-06-01 Epub Date: 2025-10-31 DOI: 10.1002/cta.70203

Jianbo Jiang, Yang Ye, Yudong Yang, Jiaxue Guo, Fei Liu, Enming Zhao

{"title":"A Retired Power Battery Integrated System That Implements Battery Pack SOC Balancing and Fast Balancing Strategy Design","authors":"Jianbo Jiang, Yang Ye, Yudong Yang, Jiaxue Guo, Fei Liu, Enming Zhao","doi":"10.1002/cta.70203","DOIUrl":"https://doi.org/10.1002/cta.70203","url":null,"abstract":"<div>\u0000 \u0000 <p>Retired power batteries with better performance are used as energy storage systems to suppress the power fluctuation of new energy sources, which is conducive to reducing cost and improving resource utilization. However, because the inconsistency of retired power batteries is more serious than that of normal batteries, it is impossible to directly connect them in series or parallel on a large scale. To address this problem, this paper proposes a topology for an integrated system of retired power batteries based on a modular inverter with battery pack state of charge (SOC) balancing capability. The proposed topology consists of a quad active bridge (QAB) converter, a cascaded H-bridge (CHB) converter, and an AC voltage balancer (ACVB). To address the inconsistency of retired power battery packs, this paper also proposes a fast balancing strategy. The intra-phase power imbalance of the CHB inverter caused by this method is solved by the ACVB. Finally, an experimental prototype is built, and the effectiveness of the proposed integrated system and fast balancing strategy is verified by experimental results.</p>\u0000 </div>","PeriodicalId":13874,"journal":{"name":"International Journal of Circuit Theory and Applications","volume":"54 6","pages":"3156-3168"},"PeriodicalIF":1.6,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148128037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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