IET Power Electronics最新文献

{"title":"A dual-excitation inductive power transfer system with decoupled transformer for high misalignment tolerance","authors":"Kerui Xu,&nbsp;Jing Zhou,&nbsp;Yuchao Che,&nbsp;Rui He,&nbsp;Yuankui Wang,&nbsp;Bo Wang,&nbsp;Haocai Huang","doi":"10.1049/pel2.12817","DOIUrl":"https://doi.org/10.1049/pel2.12817","url":null,"abstract":"<p>This study delves into the design and optimization of a 4 kW dual-excitation inductive power transfer system designed to accommodate large misalignments. The system utilizes a bipolar-solenoid inductive coupled transformer as its coupling mechanism. Detailed simulation and analysis of this coupling mechanism are conducted. Additionally, the system employs a control strategy aimed at optimizing the coordination between output power and efficiency. This control strategy dynamically adjusts the power of the two transmitters, aiming to enhance system efficiency to the maximum extent possible under favourable coupling conditions. Moreover, it ensures that the system's output power remains at or above the rated value even when coupling conditions deteriorate. During the experiment, the system can optimize the output power and efficiency at the same time by using a suitable control strategy when the coils are misaligned. Meanwhile, the system can achieve a minimum efficiency of 81.5% even when the misalignment distance reaches 300 mm (60% of per transmitting coil size). The system and control strategy proposed in this paper can effectively overcome the deterioration of the output characteristics of the wireless power transfer system when misalignment occurs.</p>","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"17 16","pages":"2986-3004"},"PeriodicalIF":1.7,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.12817","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143252343","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}

{"title":"Piezoelectric deicing system for aeronautics: Extensional mode actuator and power supply","authors":"Modar Jomaa,&nbsp;Pierre-Etienne Lévy,&nbsp;Dejan Vasic,&nbsp;François Costa,&nbsp;Marwan Ali","doi":"10.1049/pel2.12813","DOIUrl":"https://doi.org/10.1049/pel2.12813","url":null,"abstract":"<p>Recent research shows a growing interest in low-power avionic deicing systems, in particular, those based on piezoelectric actuators for their energy efficiency. The system generates micrometric vibrations in the structure to delaminate and break the ice with a low power requirement. However, designing the power supply and its control for driving piezoelectric actuators is challenging due to their distinctive capacitive behavior at most frequencies, especially in deicing applications requiring high operational frequency. This contribution addresses the two cross-dependent parts of the deicing system, that is the piezoelectric actuator designed for breaking any kind of ice on a large area and its power supply made of a 1 kW/200 V/2 MHz auxiliary resonant commutated pole inverter (ARCPI). The choice of this converter is based on the specific constraints of the application, such as varying the operating frequency with the actuator working conditions, the long cables and necessary insulation between the actuator and its supply, the soft-switching operation and reactive energy balancing for a good efficiency. Based on these criteria, the converter was developed and realized in the laboratory. Deicing tests confirmed effective operation with a power input density of 122 mW/cm², using nine piezoelectric patches per dm².</p>","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"17 16","pages":"2944-2955"},"PeriodicalIF":1.7,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.12813","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143248724","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}

{"title":"A single-inductor self-powered SECE interface circuit for dynamic load multi-PZTs energy harvesting","authors":"Saman Shoorabi Sani","doi":"10.1049/pel2.12815","DOIUrl":"https://doi.org/10.1049/pel2.12815","url":null,"abstract":"<p>There is always considerable inconsistency between the input energy and the amount of the energy required for the load in piezoelectric transducers (PZTs) energy harvesting interface circuits that often degrades the harvesting performance of most of them. Multiple piezoelectric transducers (multi-PZTs) vibration scavenging may address this issue by enhancing input power and, consequently, environmental adaptability and reliability. The proposed interface circuit may extract energy from a PZT array regardless of each PZT amplitude, frequency, or phase, even under dynamic or heavy load circumstances. The circuit is thoroughly simulated by LTSpice software and evaluated by post-simulation calculations and discussions. The simulation findings demonstrate that the proposed self-powered (SP) SECE-based multi-PZT EH interface circuit, named MI-SP-SECE, can extract a peak power of 12.8 µW from three PZTs in the provided actual scenario at a dynamic load regime with a simulated excitation of 1.5 g and 50 Hz. The proposed circuit's energy integration and harvesting efficiencies are 75% and 85%, respectively. It can achieve a power enhancement of 2.8× relative to a multi-input full-bridge rectifier. In addition, the proposed circuit is scalable effectively because it requires just one inductor component.</p>","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"17 15","pages":"2613-2630"},"PeriodicalIF":1.7,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.12815","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707559","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}

{"title":"An improved SiC SWITCH-MOS with superior forward performance","authors":"Junji Cheng,&nbsp;Tao Zhong,&nbsp;Huan Li,&nbsp;Ping Li,&nbsp;Bo Yi,&nbsp;Haimeng Huang,&nbsp;Siliang Wang,&nbsp;Qiang Hu,&nbsp;Hongqiang Yang","doi":"10.1049/pel2.12808","DOIUrl":"https://doi.org/10.1049/pel2.12808","url":null,"abstract":"<p>An improved 4H-SiC SBD-wall-integrated trench metal-oxide-semiconductor (SWITCH-MOS) with <i>n</i>-bury and split-gate is proposed. Under the premise of ensuring breakdown voltage (BV), the <i>n</i>-bury layer can smooth the path to current conduction, which reduces the specific on-resistance (<i>R</i>_{ON, SP}) and improves static characteristics. Besides, the split-gate is able to transform the gate-drain capacitance (<i>C</i>_GD) and improve the dynamic characteristics. Therefore, a superior forward performance that SWITCH-MOS always craves is achieved. According to the simulation results, compared to the conventional SWITCH-MOS with almost the same BV, the proposed one reduces the <i>R</i>_{ON, SP} by 57% and the <i>C</i>_GD by 59% while gaining equally advanced reverse performance. Its reverse conduction voltage is only −1.78 V, but its figure of merit reaches 1.67 GW/cm² and 65 mΩ·nC, which is attractive for the application in power inverters.</p>","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"17 15","pages":"2584-2590"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.12808","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707576","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}

{"title":"Dual-state and self-oscillating wireless charging system topology for direct-drive battery","authors":"Bo Li,&nbsp;Bao Zhang,&nbsp;Kai Xie","doi":"10.1049/pel2.12797","DOIUrl":"https://doi.org/10.1049/pel2.12797","url":null,"abstract":"<p>This study proposes a novel topology with bi-stable controlling for wireless charging system (WCS). The advantage of the proposal is that a desired charging current can be directly output from rectifier without requiring charging current manager, thereby greatly simplifying the structure of the receiver. The proposed topology not only improves the transmission efficiency of system, but also reduces the loss and heat dissipation in the receiver. The principle of the topology is outlined and the circuitry model and control strategy are established and analyzed in detail. The innovation of this method lies in treating the coupler as a current transformer, which enables more direct and simpler controlling of the charging current. The experiment is conducted to verify that when the peak charging current is increased from 5A to 10A, the system efficiency is increased up to 82.0% and the receiver efficiency up to 96.7%. Both computational simulation and experimental validation have confirmed the feasibility of the proposed method. Compared with conventional WCS topology with compensation, the proposed method improves the system efficiency by 3% and the receiver efficiency by 5%, which is more suitable for practical applications where compact and light-weight receiver is required.</p>","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"17 15","pages":"2498-2514"},"PeriodicalIF":1.7,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.12797","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707978","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}

{"title":"Speed control and maximum efficiency operation of three-phase squirrel cage induction motors supplied by modified \u0000 \u0000 \u0000 Γ\u0000 −\u0000 Z\u0000 \u0000 $Gamma - Z$\u0000 impedance source inverter","authors":"Sajjad Yazdani,&nbsp;Amirhossein Rajaei,&nbsp;Akbar Rahideh","doi":"10.1049/pel2.12802","DOIUrl":"https://doi.org/10.1049/pel2.12802","url":null,"abstract":"<p>A three-phase squirrel cage induction motor (IM) drive system supplied by a new modified structure of <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>Γ</mi>\u0000 <mo>−</mo>\u0000 <mi>Z</mi>\u0000 </mrow>\u0000 <annotation>${{Gamma}} - {mathrm{Z}}$</annotation>\u0000 </semantics></math> impedance source inverter (<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>Γ</mi>\u0000 <mo>−</mo>\u0000 <mi>Z</mi>\u0000 </mrow>\u0000 <annotation>${{Gamma}} - {mathrm{Z}}$</annotation>\u0000 </semantics></math> ISI) is proposed. The two main goals are speed (torque) control, and efficiency improvement. The modified <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>Γ</mi>\u0000 <mo>−</mo>\u0000 <mi>Z</mi>\u0000 </mrow>\u0000 <annotation>${{Gamma}} - {mathrm{Z}}$</annotation>\u0000 </semantics></math> ISI has the ability to boost the input voltage. This improves the operation range of the system particularly for limited DC-link voltage conditions. A first order integral-terminal sliding mode (ITSM) controller is designed incorporating the motor and inverter dynamic model equations. The maximum efficiency strategy based on Lagrange's theorem is achieved by optimizing the motor input power (input energy) as the objective function under the constant load torque. The maximum efficiency strategy using energy saving is suitable for electric drive system applications. Also, the control method is resilient to any change in motor parameters and unmodulated system dynamics. Furthermore, its output control error can be eliminated in a limited interval. Finally, a prototype of the system using a 1.5 kW three-phase squirrel cage IM is provided and several tests are conducted. The experimental results show the efficacy of the proposed method.</p>","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"17 16","pages":"2878-2889"},"PeriodicalIF":1.7,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.12802","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143253456","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}

{"title":"Hybrid DC circuit breaker power supply system with load constant voltage self-balancing design","authors":"Zhonghao Dongye,&nbsp;Jialiang Li,&nbsp;Xiangyu Zhang,&nbsp;Jiacheng Wang,&nbsp;Hong Shen,&nbsp;Lei Qi","doi":"10.1049/pel2.12810","DOIUrl":"https://doi.org/10.1049/pel2.12810","url":null,"abstract":"<p>Power electronic switches (PES) play a crucial role in transferring and clearing fault currents in hybrid DC circuit breakers. The PES encounters switching transients that require a dependable external power source. Usually, a power supply system utilizes an isolation transformer and many magnetic rings. However, the existence of inconsistent parameters might easily cause an imbalance in load power, which could potentially result in power supply failure for the loads. Therefore, to enhance the reliability of power supply, this study proposes a load constant voltage self-balancing design approach that utilizes feedback circuits to achieve stability and balance in load voltage. At first, two feedback circuits are shown, and the analytical formulas for load active power and load voltage are derived. Moreover, a parameter design methodology is shown for the equivalent circuit of the magnetic rings in the power supply. Additionally, a power supply system is built with 24 V outputs. In conclusion, this study utilizes simulations and tests to assess the effectiveness of the proposed power supply system by analysing its performance during start-up, load power-off, and steady-state operations.</p>","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"17 15","pages":"2591-2600"},"PeriodicalIF":1.7,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.12810","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142708418","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}

{"title":"An extendable switched-capacitor based three-phase multilevel inverter with boosting capability","authors":"Hadi Aghaei,&nbsp;Seyed Majid Hashemzadeh,&nbsp;Ebrahim Babaei,&nbsp;Mohammad Bagher Bannae Sharifian,&nbsp;Atif Iqbal","doi":"10.1049/pel2.12812","DOIUrl":"https://doi.org/10.1049/pel2.12812","url":null,"abstract":"<p>The increasing demand for integrating renewable energy sources necessitates inverter topologies with boosting capabilities. Using inverters with boosting capability and a low number of components to integrate renewable energy sources can reduce costs. This study describes a three-phase multilevel inverter based on extendable switching capacitors. The use of voltage-doubling modules permits the development of the inverter's capability. By increasing the number of doubling modules, the number of output voltage levels and boost factor are increased. Furthermore, the study introduces and implements a line voltage-based pulse width modulation approach developed for the proposed inverter. The operation of the proposed multilevel inverter, along with the pulse width modulation scheme, common mode voltage, and power loss analysis are thoroughly discussed. Additionally, a comparative analysis is provided; highlighting the advantage of reducing the number of power switches in the proposed three-phase inverter compared to other existing topologies. Finally, a laboratory prototype is developed, operating at a 4 kHz switching frequency and with a 120 V DC-link voltage. The experimental results corroborate the efficiency and performance of the proposed multilevel inverter, thereby validating its practical applicability.</p>","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"17 15","pages":"2601-2612"},"PeriodicalIF":1.7,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.12812","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142708417","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}

{"title":"Real-time reliability evaluation method for IGBT module in MMC based on junction temperature and bond wire failure online monitoring","authors":"Zhonghao Dongye,&nbsp;Wuyu Zhang,&nbsp;Lei Qi,&nbsp;Bowen Gu,&nbsp;Hong Shen,&nbsp;Xiangyu Zhang,&nbsp;Xiang Cui","doi":"10.1049/pel2.12806","DOIUrl":"https://doi.org/10.1049/pel2.12806","url":null,"abstract":"<p>The lack of an MMC reliability evaluation approach that incorporates data on essential components' health monitoring in the already related research prevents reliability from being further improved. Therefore, this article proposes a real-time reliability evaluation method of the multi-state IGBT module in MMC through iterative calculation of the Markov chain model. The degradation process of the IGBT module is divided into multiple states based on the monitored bond wire failure, and the failure rate of the IGBT module is updated in real time using the accumulated monitoring data of junction temperature. The proposed method can more accurately reflect the real state of MMC compared with the binary state evaluation method. Besides, a multi-channel high-speed data acquisition board is designed to measuring the gate voltage and collector voltage of the IGBT for the health evaluation of IGBT modules in MMC; the typically measured results validate the effectiveness of the data acquisition board.</p>","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"17 15","pages":"2561-2571"},"PeriodicalIF":1.7,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.12806","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142708043","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}

{"title":"A novel vehicle power line communication method based on switching ripple modulation","authors":"He Zhu,&nbsp;Zhiyuan Xie,&nbsp;Wangbin Cao,&nbsp;Zonglong Bai,&nbsp;Zhengwei Hu","doi":"10.1049/pel2.12785","DOIUrl":"https://doi.org/10.1049/pel2.12785","url":null,"abstract":"<p>Power converters can perform power conversion and data transmission simultaneously. With the aim of mitigating the hardware requirements of vehicle power line communication (VPLC), a novel VPLC scheme based on switching ripple modulation (SRM) is proposed to eliminate the need for coupling circuits and specialized communication chips. By embedding data modulation techniques into traditional pulse width modulation systems, power/data multiplexing transmission is achieved by demodulating the voltage ripple on the DC bus. First, the theoretical foundation of the SRM is introduced, and power/data single carrier modulation using 2FSK and data demodulation based on the sliding discrete Fourier transform are provided. Subsequently, comprehensive analyses of the mutual influence between power conversion and communication in the buck converter are conducted. The impact of power conversion on communication primarily depends on the control loop compensation and perturbation depth. Moreover, the designs of the ripple conditioning circuit and communication frame are presented. Finally, an experimental prototype is constructed with two buck converters in parallel. The experimental results demonstrate a data transmission rate of 12.5 kbps within 3 m under steady-state, transient input and output voltage, and transient load conditions, validating the correctness of the proposed methodology.</p>","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"17 15","pages":"2380-2392"},"PeriodicalIF":1.7,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.12785","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142708045","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}