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The power control and efficiency optimization strategy of dynamic wireless charging system for multiple electric vehicles 多电动汽车动态无线充电系统的功率控制和效率优化策略
IF 0.9 4区 工程技术
Circuit World Pub Date : 2024-08-07 DOI: 10.1108/cw-01-2024-0003
Ming Zhang, Hantao Zhang, WeiYe Tao, Yan Yang, Yingjun Sang
{"title":"The power control and efficiency optimization strategy of dynamic wireless charging system for multiple electric vehicles","authors":"Ming Zhang, Hantao Zhang, WeiYe Tao, Yan Yang, Yingjun Sang","doi":"10.1108/cw-01-2024-0003","DOIUrl":"https://doi.org/10.1108/cw-01-2024-0003","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>This study aims to solve the problem that both the speed and the required driving power of electric vehicles (EVs) will change during the dynamic wireless charging (DWC) process, making it difficult to charge EVs with a constant power considering the overall efficiency of DWC system, the numbers of EVs and the power supply capacity. Therefore, this paper proposes the power control and efficiency optimization strategies for multiple EVs.</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>The wireless power charging system for multiple loads with a structure of double-sided LCC compensation topology is established. The expressions of optimal transmission efficiency and optimal equivalent impedance are derived. Taking the Tesla Model 3 as an example, a method to determine the number of EVs allowed by one transmitter coil and the overall charging power is proposed considering EV speed, power supply capacity, safe braking distance and overall efficiency. Then, the power control strategy, which can adapt to the changes of EV speed and the efficiency optimization strategy under different numbers of EVs are proposed.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>In this paper, a method to determine the numbers of EVs allowed by one transmitter coil and the overall charging power is proposed considering EVs speed, power supply capacity, safe braking distance and overall efficiency. The accuracy of the charging power is good enough and the overall efficiency reaches a maximum of 91.79% when the load resistance changes from 5Ω to 20Ω.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>In this paper, the power control and efficiency optimization strategy of DWC system for multiple EVs are proposed. Specifically, a method of designing the number of EVs and charging power allowed by one transmitter coil considering the factors of EV speed, power supply capacity, safe braking distance and overall efficiency is designed. The overall efficiency of the experiment reaches a maximum of 91.79% after adopting the optimization strategy.</p><!--/ Abstract__block -->","PeriodicalId":50693,"journal":{"name":"Circuit World","volume":"131 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141931913","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 novel higher-order sliding mode control for DC-DC boost converter system in PMDC motor exploring mismatched disturbances 用于永磁直流电机直流-直流升压转换器系统的新型高阶滑动模式控制,探索不匹配干扰
IF 0.9 4区 工程技术
Circuit World Pub Date : 2024-06-04 DOI: 10.1108/cw-06-2023-0144
Dhanasekar R, Ganesh Kumar Srinivasan, Marco Rivera
{"title":"A novel higher-order sliding mode control for DC-DC boost converter system in PMDC motor exploring mismatched disturbances","authors":"Dhanasekar R, Ganesh Kumar Srinivasan, Marco Rivera","doi":"10.1108/cw-06-2023-0144","DOIUrl":"https://doi.org/10.1108/cw-06-2023-0144","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>The purpose of this study is to stabilize the rotating speed of the permanent magnet direct current (PMDC) motor driven by a DC-DC boost converter under mismatched disturbances (i.e.) under varying load circumstances like constant, frictional, fan type, propeller and undefined torques.</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>This manuscript proposes a higher order sliding mode control to elevate the dynamic behavior of the speed controller and the robustness of the PMDC motor. A second order classical sliding surface and proportional-integral-derivative sliding surface (PIDSS) are designed and compared.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>For the boost converter with PMDC motor, both simulation and experimentation are exploited. The prototype is built for an 18 W PMDC motor with field programmable gate arrays. The suggested sliding mode with second order improves the robustness of the arrangement under disturbances with a wide range of control. Both the simulation and experimental setup shows satisfactory results.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>According to software-generated mathematical design and experimental findings, PIDSS exhibits excellent performance with respect to settling speed, steady-state error and peak overshoot.</p><!--/ Abstract__block -->","PeriodicalId":50693,"journal":{"name":"Circuit World","volume":"43 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141257117","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
Analysis and design of wireless power transfer system with anti-misalignment constant voltage output characteristics 具有抗偏移恒定电压输出特性的无线电力传输系统的分析与设计
IF 0.9 4区 工程技术
Circuit World Pub Date : 2024-05-15 DOI: 10.1108/cw-08-2023-0303
Dangshu Wang, Zhimin Guan, Jing Wang, Menghu Chang, Licong Zhao, Xinxia Wang
{"title":"Analysis and design of wireless power transfer system with anti-misalignment constant voltage output characteristics","authors":"Dangshu Wang, Zhimin Guan, Jing Wang, Menghu Chang, Licong Zhao, Xinxia Wang","doi":"10.1108/cw-08-2023-0303","DOIUrl":"https://doi.org/10.1108/cw-08-2023-0303","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>This study aims to solve the problem of high output voltage fluctuation and low efficiency caused by the misalignment of the magnetic coupling structure in the wireless charging system for electric vehicles. To address these issues, this paper proposes a dual LCC-S wireless power transfer (WPT) system based on the double-D double-layer quadrature (DDDQ) coil, which can realize the anti-misalignment constant voltage output of the system.</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>First, this paper establishes the equivalent circuit of a WPT system based on dual LCC-S compensation topology and analyzes its constant-voltage output characteristics and the relationship between system transmission efficiency and coupling coefficient. 1. Quadruple D (Ahmad <em>et al.</em>, 2019) and double-D quadrature pad (DDQP) (Chen <em>et al.</em>, 2019) coils have good anti-misalignment in the transverse and longitudinal directions, but the magnetic induction intensity in the center of the coils is weak, making it difficult for the receiving coil to effectively couple to the magnetic field energy. 2. Based on the double-D quadrature (DDQ) structure coil that can eliminate the mutual inductance between coupling coils and cross-coupling, Gong <em>et al.</em> (2022a) proposed a parameter optimized LCC-LC series-parallel hybrid topology circuit, which ensures that the output current fluctuation is controlled within 5% only when the system is misaligned within the 50% range along the X direction, achieving constant current output with anti-misalignment. The magnetic coupling structure’s finite element simulation model is established to analyze the change in magnetic induction intensity and the system’s anti-misalignment characteristics when the coil offsets along the <em>x</em> and <em>y</em> axes. Finally, an experimental prototype is developed to verify the constant voltage output performance and anti-misalignment performance of the system, and the proposed anti-misalignment system is compared with the systems in existing literature, highlighting the advantages of this design.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>The experimental results show that the system can achieve a constant voltage output of 48V under a time-varying load, and the output voltage fluctuates within ±5% of the set value within the range of ±60 mm lateral misalignment and ±72 mm longitudinal misalignment.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>Based on the dual LCC-S WPT system, the mutual inductance between the same side coils is reduced by adding decoupling coils, and the anti-misalignment characteristics and output power of the system are improved in a certain range. It is aimed at improving the stability of the system output and transmission efficiency.</p><!--/ Abstract__block -->","PeriodicalId":50693,"journal":{"name":"Circuit World","volume":"33 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140936471","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
Analysis and circuit design of isolated forward SEPIC converter with minimum-phase stability 具有最小相位稳定性的隔离式正向 SEPIC 转换器的分析和电路设计
IF 0.9 4区 工程技术
Circuit World Pub Date : 2024-02-06 DOI: 10.1108/cw-08-2022-0222
Alireza Goudarzian, Rohallah Pourbagher
{"title":"Analysis and circuit design of isolated forward SEPIC converter with minimum-phase stability","authors":"Alireza Goudarzian, Rohallah Pourbagher","doi":"10.1108/cw-08-2022-0222","DOIUrl":"https://doi.org/10.1108/cw-08-2022-0222","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>Conventional isolated dc–dc converters offer an efficient solution for performing voltage conversion with a large improved voltage gain. However, the small-signal analysis of these converters shows that a right-half-plane (RHP) zero appears in their control-to-output transfer function, exhibiting a nonminimum-phase stability. This RHP zero can limit the frequency response and dynamic specifications of the converters; therefore, the output voltage response is sluggish. To overcome these problems, the purpose of this study is to analyze, model and design a new isolated forward single-ended primary-inductor converter (IFSEPIC) through RHP zero alleviation.</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>At first, the normal operation of the suggested IFSEPIC is studied. Then, its average model and control-to-output transfer function are derived. Based on the obtained model and Routh–Hurwitz criterion, the components are suitably designed for the proposed IFSEPIC, such that the derived dynamic model can eliminate the RHP zero.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>The advantages of the proposed IFSEPIC can be summarized as: This converter can provide conditions to achieve fast dynamic behavior and minimum-phase stability, owing to the RHP zero cancellation; with respect to conventional isolated converters, a larger gain can be realized using the proposed topology; thus, it is possible to attain a smaller operating duty cycle; for conventional isolated converters, transformer core saturation is a major concern, owing to a large magnetizing current. However, the average value of the magnetizing current becomes zero for the proposed IFSEPIC, thereby avoiding core saturation, particularly at high frequencies; and the input current of the proposed converter is continuous, reducing input current ripple.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>The key benefits of the proposed IFSEPIC are shown via comparisons. To validate the design method and theoretical findings, a practical implementation is presented.</p><!--/ Abstract__block -->","PeriodicalId":50693,"journal":{"name":"Circuit World","volume":"27 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139688688","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 pulsed bipolar current-mode power supply with high power factor in a single stage for dielectric barrier discharge application 用于介质阻挡层放电的单级高功率因数脉冲双极电流模式电源
IF 0.9 4区 工程技术
Circuit World Pub Date : 2024-02-02 DOI: 10.1108/cw-06-2023-0138
Xiongmin Tang, Zexin Zhou, Yongquan Chen, ZhiHong Lin, Miao Zhang, Xuecong Li
{"title":"A pulsed bipolar current-mode power supply with high power factor in a single stage for dielectric barrier discharge application","authors":"Xiongmin Tang, Zexin Zhou, Yongquan Chen, ZhiHong Lin, Miao Zhang, Xuecong Li","doi":"10.1108/cw-06-2023-0138","DOIUrl":"https://doi.org/10.1108/cw-06-2023-0138","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>Dielectric barrier discharge (DBD) is widely used in the treatment of skin disease, surface modification of material and other fields of electronics. The purpose of this paper is to design a high-performance power supply with a compact structure for excimer lamps in electronics application.</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>To design a high-performance power supply with a compact structure remains a challenge for excimer lamps in electronics application, a current-source type power supply in a single stage with power factor correction (PFC) is proposed. It consists of an excitation voltage generation unit and a PFC unit. By planning the modes of the excitation voltage generation unit, a bipolar pulse excitation voltage with a high rising and falling rate is generated. And a high power factor (PF) on the AC side is achieved by the interaction of a non-controlled rectifier and two inductors.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>The experimental results show that not only a high-frequency and high-voltage bipolar pulse excitation voltage with a high average rising and falling rate (7.51GV/s) is generated, but also a high PF (0.992) and a low total harmonic distortion (5.54%) is obtained. Besides, the soft-switching of all power switches is realized. Compared with the sinusoidal excitation power supply and the current-source power supply, the proposed power supply in this paper can take advantage of the potential of excimer lamps.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>A new high-performance power supply with a compact structure for DBD type excimer lamps is proposed. The proposed power supply can work stably in a wide range of frequencies, and the smooth regulation of the discharge power of the excimer lamp can be achieved by changing the switching frequency. The ideal excitation can be generated, and the soft switching can be realized. These features make this power supply a key player in the outstanding performance of the DBD excimer lamps application.</p><!--/ Abstract__block -->","PeriodicalId":50693,"journal":{"name":"Circuit World","volume":"173 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139647441","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
An LLC resonant converter with wide output range fixed frequency PWM control for PEV charging applications 用于 PEV 充电应用的 LLC 谐振转换器,具有宽输出范围固定频率 PWM 控制功能
IF 0.9 4区 工程技术
Circuit World Pub Date : 2024-01-31 DOI: 10.1108/cw-06-2023-0137
Dangshu Wang, Menghu Chang, Licong Zhao, Yuxuan Yang, Zhimin Guan
{"title":"An LLC resonant converter with wide output range fixed frequency PWM control for PEV charging applications","authors":"Dangshu Wang, Menghu Chang, Licong Zhao, Yuxuan Yang, Zhimin Guan","doi":"10.1108/cw-06-2023-0137","DOIUrl":"https://doi.org/10.1108/cw-06-2023-0137","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>This study aims to regarding the application of traditional pulse frequency modulation control full-bridge LLC resonant converters in wide output voltage fields such as on-board chargers, there are issues with wide frequency adjustment ranges and low conversion efficiency.</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>To address these issues, this paper proposes a fixed-frequency pulse width modulation (PWM) control strategy for a full-bridge LLC resonant converter, which adjusts the gain by adjusting the duty cycle of the switches. In the full-bridge LLC converter, the two switches of the lower bridge arm are controlled by a fixed-frequency and fixed duty cycle, with their switching frequency equal to the resonant frequency, whereas the two switches of the upper bridge arm are controlled by a fixed-frequency PWM to adjust the output voltage. The operation modes of the converter are analyzed in detail, and a mathematical model of the converter is established. The gain characteristics of the converter under the fixed-frequency PWM control strategy are deeply analyzed, and the conditions for implementing zero-voltage switching (ZVS) soft switching in the converter are also analyzed in detail. The use of fixed-frequency PWM control simplifies the design of resonant parameters, and the fixed-frequency control is conducive to the design of magnetic components.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>According to the fixed-frequency PWM control strategy proposed in this paper, the correctness of the control strategy is verified through simulation and the development and testing of a 500-W experimental prototype. Test results show that the primary side switches of the converter achieve ZVS and the secondary side rectifier diodes achieve zero-current switching, effectively reducing the switching losses of the converter. In addition, the control strategy reduces the reactive circulating current of the converter, and the peak efficiency of the experimental prototype can reach 95.2%.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>The feasibility of the fixed-frequency PWM control strategy was verified through experiments, which has significant implications for improving the efficiency of the converter and simplifying the design of resonant parameters and magnetic components in wide output voltage fields such as on-board chargers.</p><!--/ Abstract__block -->","PeriodicalId":50693,"journal":{"name":"Circuit World","volume":"135 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139647442","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
Performance analysis of FEC based SR motor drive using fuzzy tuned PI controller 使用模糊调整 PI 控制器的基于 FEC 的 SR 电机驱动器性能分析
IF 0.9 4区 工程技术
Circuit World Pub Date : 2023-12-20 DOI: 10.1108/cw-08-2022-0240
Indira Damarla, Venmathi M., Krishnakumar V., Anbarasan P.
{"title":"Performance analysis of FEC based SR motor drive using fuzzy tuned PI controller","authors":"Indira Damarla, Venmathi M., Krishnakumar V., Anbarasan P.","doi":"10.1108/cw-08-2022-0240","DOIUrl":"https://doi.org/10.1108/cw-08-2022-0240","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>In this paper, a new front end converter (FEC) topology has been proposed for the switched reluctance (SR) motor drive. This study aims to present the performance analysis of FEC-based SR motor drive using various types of control schemes like conventional proportional integral (PI) controller, fuzzy logic controller (FLC) and fuzzy-tuned proportional integral controller (Fuzzy-PI).</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>The proposed FEC-based SR motor drive with various control strategies is derived for the torque ripple minimization and speed control.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>The steady state and the dynamic response of the FEC-based SR motor drive are analyzed using three different controllers under change in speed and loading conditions. The Fuzzy-PI-based control scheme improves the dynamic response of the system when compared with the FLC and the conventional PI controller.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>The hardware prototype has been implemented for the FEC-based SR motor drive by using the Xilinx SPARTAN 6 FPGA processor. The experimental verification has been conducted and the results have been measured under steady state and dynamic conditions.</p><!--/ Abstract__block -->","PeriodicalId":50693,"journal":{"name":"Circuit World","volume":"109 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138716674","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
Light-load performance optimization for LLC resonant converter LLC谐振变换器轻载性能优化
4区 工程技术
Circuit World Pub Date : 2023-10-13 DOI: 10.1108/cw-01-2023-0006
Xuliang Yao, Xiao Han, Yuefeng Liao, Jingfang Wang
{"title":"Light-load performance optimization for LLC resonant converter","authors":"Xuliang Yao, Xiao Han, Yuefeng Liao, Jingfang Wang","doi":"10.1108/cw-01-2023-0006","DOIUrl":"https://doi.org/10.1108/cw-01-2023-0006","url":null,"abstract":"Purpose This study aims to solve the problem that under light-load conditions, the output voltage regulation capability is lost due to the fact that the voltage gain of the LLC resonant converter does not decrease with the increase of the switching frequency. Design/methodology/approach In this paper, the impedance model considering the parasitic parameters of the primary and secondary sides is calculated under light-load conditions, the limitations of the previous method are explained and a new circuit improvement is proposed. Findings In this paper, an improved circuit is proposed, and the impedance Bode plot is used to verify that the circuit can effectively improve the voltage gain problem under light-load conditions. Finally, the experimental results verify the effectiveness of the proposed circuit through comparison with traditional solutions and circuits. Originality/value In this paper, the impedance model considering the parasitic parameters of the primary and secondary sides is calculated, the limitations of the previous method are explained and a new circuit improvement is proposed. When compared with the previous method, the proposed circuit improvement can suppress the voltage gain increase that occurs when the switching frequency increases to a certain level.","PeriodicalId":50693,"journal":{"name":"Circuit World","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135805967","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: 1
Analysis of output characteristics of wireless power transfer system based on LCC/S-S hybrid compensation structure 基于LCC/S-S混合补偿结构的无线电力传输系统输出特性分析
4区 工程技术
Circuit World Pub Date : 2023-09-26 DOI: 10.1108/cw-09-2022-0260
Dangshu Wang, Xuan Deng, Zhimin Guan, Shulin Liu, Yaqiang Yang, Xinxia Wang
{"title":"Analysis of output characteristics of wireless power transfer system based on LCC/S-S hybrid compensation structure","authors":"Dangshu Wang, Xuan Deng, Zhimin Guan, Shulin Liu, Yaqiang Yang, Xinxia Wang","doi":"10.1108/cw-09-2022-0260","DOIUrl":"https://doi.org/10.1108/cw-09-2022-0260","url":null,"abstract":"Purpose To simplify the circuit design and control complexity of the magnetic coupling resonant wireless charging system, the radio energy transmission constant current and constant voltage charging is realized. Design/methodology/approach The purpose of this study is to simplify the circuit design and control complexity of the magnetic coupling resonance wireless charging system, in order to achieve constant current and constant voltage charging for wireless energy transmission. First, the principle of LCC/S-S compensation structure is analyzed, and the equivalent mathematical model is established; then, the system characteristics under constant current and constant voltage mode are analyzed, and the design method of system parameters is given; finally, a simulation and experimental system is built to verify the correctness and feasibility of the theoretical analysis. Findings The results show that the proposed hybrid topology can achieve a constant current output of 2 A and a constant voltage output of 30 V under variable load conditions, and effectively suppress the current distortion problem under light load conditions. The waveform distortion rate of the inverter current is reduced from 33.97% to 10.45%. Originality/value By changing the high-order impedance characteristics of the compensation structure, the distortion of the current waveform under light load is suppressed, and the overall stability and efficiency of the system are improved.","PeriodicalId":50693,"journal":{"name":"Circuit World","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134883693","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
Investigation on reliability of classical industrial motor drives using GoldSim Monte Carlo reliability workbench 基于GoldSim蒙特卡罗可靠性工作台的经典工业电机驱动可靠性研究
IF 0.9 4区 工程技术
Circuit World Pub Date : 2023-08-24 DOI: 10.1108/cw-10-2022-0278
Raghavendra Rao N.S., C. A.
{"title":"Investigation on reliability of classical industrial motor drives using GoldSim Monte Carlo reliability workbench","authors":"Raghavendra Rao N.S., C. A.","doi":"10.1108/cw-10-2022-0278","DOIUrl":"https://doi.org/10.1108/cw-10-2022-0278","url":null,"abstract":"\u0000Purpose\u0000The purpose of this study is to propose an extended reliability method for an industrial motor drive by integrating the physics of failure (PoF).\u0000\u0000\u0000Design/methodology/approach\u0000Industrial motor drive systems (IMDS) are currently expected to perform beyond the desired operating conditions to meet the demand. The PoF of the subsystem affects its reliability under such harsh operating circumstances. It is crucial to estimate reliability by integrating PoF, which helps in understanding its impact and to develop a fault-tolerant design, particularly in such an integrated drive system. An integrated PoF extended reliability method for industrial drive system is proposed to address this issue. In research, the numerical failure rate of each component of industrial drive is obtained first with the help of the MIL-HDBK-217 military handbook. Furthermore, the mathematically deduced proposed approach is modeled in the GoldSim Monte Carlo reliability workbench.\u0000\u0000\u0000Findings\u0000From the results, for a 15% rise in integrated PoF, the reliability and availability of the entire IMDS dropped by 23%, resulting in an impact on mean time to failure (MTTF).\u0000\u0000\u0000Originality/value\u0000The integrated PoF of the motor and motor controller affects industrial drive reliability, which falls to 0.18 with the least MTTF (2.27 years); whose overall reliability of industrial drive drops to 0.06 if it is additionally integrated with communication protocol.\u0000","PeriodicalId":50693,"journal":{"name":"Circuit World","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62058675","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}
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