CPSS Transactions on Power Electronics and Applications最新文献_第6页

A Wide Range Dual-Output Power Management Circuit for I-Shaped High Frequency Magnetic Field Energy Harvester 用于 I 型高频磁场能量收集器的宽范围双输出电源管理电路

CPSS Transactions on Power Electronics and Applications Pub Date : 2023-09-29 DOI: 10.24295/CPSSTPEA.2023.00040

Han Peng;Hongfei Xiao;Qingqing Nie;Chunyan Zang;Yong Kang

{"title":"A Wide Range Dual-Output Power Management Circuit for I-Shaped High Frequency Magnetic Field Energy Harvester","authors":"Han Peng;Hongfei Xiao;Qingqing Nie;Chunyan Zang;Yong Kang","doi":"10.24295/CPSSTPEA.2023.00040","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2023.00040","url":null,"abstract":"A high power density non-intrusive magnetic field energy harvester (MEH) and dual-output power management system are proposed in this paper, targeting at widely distributed online monitoring devices for HVDC IGBT converter valves. IGBT converter valves contain sufficient kHz magnetic field due to the periodic switching of IBGT devices. High frequency MEH has the advantage of high power density. An improved I-shaped core is proposed with equivalent permeability studied and engineering practical design guidance for magnetic flux convergence. Furthermore, a wide input range dual-output power management circuit is proposed for wide magnetic intensity variations. A dual energy flow strategy is adopted with combined boost energy conversion path and buck-boost energy conversion path for better utilization of harvested energy. PCB planar coils and PCB based power management system are packaged inside the I-core to eliminate the electromagnetic interference on the low power circuit. The power density of the proposed MEH reaches to 1.89 mW/cm\u0000<sup>3</sup>\u0000 under magnetic flux density amplitude of \u0000<tex>$500 mumathrm{T}$</tex>\u0000 at 1500 Hz. The maximum efficiency of the boost path in the charging process reaches to 94.1% and the average efficiency for buck-boost path in the discharging process from 4.0 V to 0.3 V is 68.0%.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"8 4","pages":"372-383"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10268361","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139109669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reliability-Oriented Adaptive Switching Frequency Scheme for Modular Multilevel Converters 模块化多电平转换器的可靠性导向自适应开关频率方案

CPSS Transactions on Power Electronics and Applications Pub Date : 2023-09-04 DOI: 10.24295/CPSSTPEA.2023.00039

Yi Zhang;Yaqian Zhang;Zhongxu Wang

{"title":"Reliability-Oriented Adaptive Switching Frequency Scheme for Modular Multilevel Converters","authors":"Yi Zhang;Yaqian Zhang;Zhongxu Wang","doi":"10.24295/CPSSTPEA.2023.00039","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2023.00039","url":null,"abstract":"Modular multilevel converters (MMCs) are widely utilized in medium voltage grid-connected applications, typically employing carrier phase shift modulation. However, the high switching frequency associated with this modulation scheme often increases power losses and thermal stress on semiconductor devices, negatively impacting their efficiency and reliability. In this paper, we propose an adaptive switching frequency scheme that divides the carrier frequency into several discrete zones based on load conditions. Through analytical evaluation of the carrier frequency, our proposed method optimizes it to meet power quality and capacitor voltage ripple requirements, effectively reducing power losses and thermal stress. A simulation case study based on a 15-MVA MMC demonstrates a remarkable 21% reduction in annual power losses and a 12% reduction in annual damage, thereby improving efficiency and reliability. Additionally, experimental measurements conducted on a 15-kW downscale platform validate around 10% reduction in power losses while fulfilling power quality and capacitor voltage ripple requirements.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"9 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10239227","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140351493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hardware Implementation of Sensor-Less Matrix Shifting Reconfiguration Method to Extract Maximum Power Under Various Shading Conditions 在各种遮光条件下提取最大功率的无传感器矩阵移位重构方法的硬件实现

CPSS Transactions on Power Electronics and Applications Pub Date : 2023-07-19 DOI: 10.24295/CPSSTPEA.2023.00038

Vinaya Chandrakant Chavan;Suresh Mikkili

{"title":"Hardware Implementation of Sensor-Less Matrix Shifting Reconfiguration Method to Extract Maximum Power Under Various Shading Conditions","authors":"Vinaya Chandrakant Chavan;Suresh Mikkili","doi":"10.24295/CPSSTPEA.2023.00038","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2023.00038","url":null,"abstract":"Partial Shading Conditions severely deteriorates the power generation of the photovoltuic (PV) array. For conventional PV array configurations like total cross tide, bridge link, honeycomb, etc., partial shading condition inserts multiple peaks in the power voltage curve of PV array. This results in mismatch power losses and a reduction in the power generation capability of the PV array. This paper proposes a new reconfiguration method to increase PV power generation by shade distribution. This paper presents a new physical repositioning technique, a magic matrix shifting (MMS) method. The proposed PV array reconfiguration performance has been compared with available reconfigurations. It includes sudoku (SK), optimum sudoku (OSK), zigzag (ZZ), magic square (MS), skyscraper (SS), and novel shade dispersion (NSD). The performance has been investigated under uneven row (UR), uneven column (UC), triangular corner (TC), L shape (LS), left top corner (LTC), center (CT), short wide (SW), long wide (LW), short narrow (SN), long narrow (LN), random 1 (RM1) and random (RM2) shading condition. This work uses MATLAB/Simulink to model a 36, 213W, \u0000<tex>$6 times 6$</tex>\u0000 PV array construction. The performance of the MMS method has been validated on an experimental setup up of \u0000<tex>$4 times 4$</tex>\u0000 PV array construction on a real-time PV chroma emulator.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"8 4","pages":"384-396"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10188512","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139109664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Grid-Voltage Sensorless Predictive Current Control of Three-Phase PWM Rectifier With Fast Dynamic Response and High Accuracy 具有快速动态响应和高精度的三相PWM整流器无电压传感器预测电流控制

CPSS Transactions on Power Electronics and Applications Pub Date : 2023-07-06 DOI: 10.24295/CPSSTPEA.2023.00037

Chunjie Li;Jianing Hu;Mingwei Zhao

引用次数: 0

Ripple Frequency Independent Power Decoupling Control Method for Single Phase Converter 单相变换器纹波频率无关功率解耦控制方法

CPSS Transactions on Power Electronics and Applications Pub Date : 2023-06-16 DOI: 10.24295/CPSSTPEA.2023.00035

Jiayu Hu;Qianming Xu;Peng Guo;Jiakui Zhang;Cheng Tang;An Luo

{"title":"Ripple Frequency Independent Power Decoupling Control Method for Single Phase Converter","authors":"Jiayu Hu;Qianming Xu;Peng Guo;Jiakui Zhang;Cheng Tang;An Luo","doi":"10.24295/CPSSTPEA.2023.00035","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2023.00035","url":null,"abstract":"Single phase inverters/rectifiers have double-frequency voltage ripple on the DC-link due to the unbalanced instantaneous power between the input and output. In extremely low frequency detection and communication system, the output frequency of the power amplifier is low and variable. The low output frequency limits the cutoff frequency of the filter and thus causes a delay. Meanwhile, variable output frequency limits the application of ripple frequency sensitive methods such as pro-portional-resonant control. This paper proposes a general power decoupling control method independent of the ripple frequency and supporting plug-in operation. Firstly, this paper analyzes the characteristics of DC-link voltage ripple and the power decoupling control method based on the DC-link capacitor current is proposed. Then, the effects of capacitor equivalent series resistor and DC source output capacitor on the control method are analyzed in detail and corrected. In addition, the stability of control system and parameters designed are described. Finally, a 3 kW experimental prototype are designed to verify the validity and correctness of the analytical control method.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"8 3","pages":"234-245"},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873541/10272362/10154560.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67865710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stability Margin Evaluation of Black-Box Power Distribution Systems in a Wide Load Range 宽负载范围内黑盒配电系统的稳定裕度评估

CPSS Transactions on Power Electronics and Applications Pub Date : 2023-06-16 DOI: 10.24295/CPSSTPEA.2023.00036

Zhengge Chen;Jin Qi;Xu Chen;Jianping Xu

{"title":"Stability Margin Evaluation of Black-Box Power Distribution Systems in a Wide Load Range","authors":"Zhengge Chen;Jin Qi;Xu Chen;Jianping Xu","doi":"10.24295/CPSSTPEA.2023.00036","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2023.00036","url":null,"abstract":"Power module-based power distribution systems (PDSs) are extensively used in modern power conversion applications. However, the power modules usually do not provide internal topology circuit and modulation information, which makes it difficult to evaluate system stability by the general whitebox approaches. Alternatively, this paper proposes perturbation-based impedance ratio stability analysis steps, which offer stability evaluation over a wide load range and it does not require the circuit or modulation information. Firstly, the theoretical impedance ratio measurement circuit is explained with the stability criterion. Then, the analysis steps are introduced to show how the system stability margin over different loads can be evaluated by the 3-dimensional (3-D) fitting bode plot surface. Four typical module-based PDSs with seven completely different power converters are exemplified in the simulation for case studies. Finally, the correctness of the evaluated stability margins of the four studied PDSs in different loads are verified by the time-domain simulation waveforms, respectively.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"8 4","pages":"325-335"},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10154561","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139109665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Speed-Sensorless Control of Induction Motor Drives With a FCS-Based Estimation Scheme 基于FCS估计方案的异步电机无速度传感器控制

CPSS Transactions on Power Electronics and Applications Pub Date : 2023-06-05 DOI: 10.24295/CPSSTPEA.2023.00033

Junwen Mu;Xinglai Ge;Yu Chang;Gengle Liang

引用次数: 0

Optimized Design Method of RC Damper Based on Modified Negative Conductance Model to Suppress Switching Oscillations in Synchronous Rectifier Circuits With GaN Devices 基于修正负电导模型的RC阻尼器抑制GaN同步整流电路开关振荡的优化设计方法

CPSS Transactions on Power Electronics and Applications Pub Date : 2023-06-05 DOI: 10.24295/CPSSTPEA.2023.00034

Fangwei Zhao;Yan Li;Yanxuan Zheng;Nan Zhang

{"title":"Optimized Design Method of RC Damper Based on Modified Negative Conductance Model to Suppress Switching Oscillations in Synchronous Rectifier Circuits With GaN Devices","authors":"Fangwei Zhao;Yan Li;Yanxuan Zheng;Nan Zhang","doi":"10.24295/CPSSTPEA.2023.00034","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2023.00034","url":null,"abstract":"Gallium nitride (GaN) devices have great potential in high-frequency and high power density converters. And GaN devices are more and more used into synchronous rectifier circuits. However, the high switching speed of GaN device makes it prone to have switching oscillation problems. Considering the low loop damping determined by the low on-resistance characteristic of the device and compact PCB design, the oscillations can even be sustained, affecting the circuit stability. In order to solve this problem, RC damper is paralleled to the drain-source of the synchronous rectifier device. The suppression mechanism is explained from the aspect of loop conductance matching based on oscillator theory. And a modified negative conductance model of the GaN-based synchronous rectifier circuit is established. Based on the established model, the optimized design method of the RC parameters is proposed. The method is verified to be effective by experiments. In addition, power loss analysis of the RC damper has also been analyzed.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"8 3","pages":"314-324"},"PeriodicalIF":0.0,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873541/10272362/10144514.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67865715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Power Density Optimization Based Parameter Design Method for the Capacitive Power Transfer System With Magnetic-Core Inductors 基于功率密度优化的磁芯电感电容功率传输系统参数设计方法

CPSS Transactions on Power Electronics and Applications Pub Date : 2023-04-25 DOI: 10.24295/CPSSTPEA.2023.00011

Yu Wu;Qianhong Chen;Jin'an Yin;Xiaoyong Ren;Zhiliang Zhang

{"title":"Power Density Optimization Based Parameter Design Method for the Capacitive Power Transfer System With Magnetic-Core Inductors","authors":"Yu Wu;Qianhong Chen;Jin'an Yin;Xiaoyong Ren;Zhiliang Zhang","doi":"10.24295/CPSSTPEA.2023.00011","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2023.00011","url":null,"abstract":"Aiming at the optimization of the power density, a parameter design method is proposed for the capacitive power transfer (CPT) system. To reduce the volume of compensation inductors, magnetic-core inductors are used to replace air-core inductors. That is, the constraints of the power density consist of the air breakdown voltage limitation and the magnetic-core loss limitation. To quantify the impact of the magnetic-core loss on the power density, the current stress and quality factor of magnetic-core inductors are discussed. Taking the power density as the main optimization objective, a parameter design method is proposed in this article. Since there exist several design points for power density optimization, efficiency is chosen as the auxiliary optimization objective to realize the parameter design. Thus, the proposed design method can optimize not only the power density but also efficiency. To verify the effectiveness, a 100 W output CPT system is built in this article. The experimental results show that the power density of the CPT system can reach 4.08 W/in\u0000<sup>3</sup>\u0000, and the peak DC-DC efficiency can reach 92.06%.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"8 2","pages":"109-118"},"PeriodicalIF":0.0,"publicationDate":"2023-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873541/10177876/10108916.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67866771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fundamental Harmonic Amplitude-Frequency Hybrid Modulation Strategy for Half-Bridge LLC Resonant Converters 半桥LLC谐振变换器基波幅频混合调制策略

CPSS Transactions on Power Electronics and Applications Pub Date : 2023-04-25 DOI: 10.24295/CPSSTPEA.2023.00016

Yujie Cheng;Zixian Ge;Yue Liu;Fan Yang;Hongfei Wu

{"title":"Fundamental Harmonic Amplitude-Frequency Hybrid Modulation Strategy for Half-Bridge LLC Resonant Converters","authors":"Yujie Cheng;Zixian Ge;Yue Liu;Fan Yang;Hongfei Wu","doi":"10.24295/CPSSTPEA.2023.00016","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2023.00016","url":null,"abstract":"Inrush current during start-up transient is a special challenge for half-bridge LLC resonant converters, especially when bulk capacitors are connected to the output of the converter. For the half-bridge LLC resonant converter, we propose a fundamental harmonic amplitude-frequency hybrid modulation strategy, so that the output voltage can be regulated continuously from zero to the normal output voltage. By adopting the proposed bipolar and unipolar pulse width modulation strategies, the amplitude of the fundamental harmonic voltage of the primary side of the converter is regulated, allowing the normalized gain of the converter to be continuously adjusted from 0 to 1. In combination with the pulse frequency modulation, the output voltage can be regulated over a wide range. The fundamental harmonic amplitude-frequency hybrid modulation strategy for half-bridge LLC resonant converters is analyzed, including its principle, characteristics, and implementation. The feasibility and effectiveness of the proposed method has been verified based on the experimental results.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"8 2","pages":"161-169"},"PeriodicalIF":0.0,"publicationDate":"2023-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873541/10177876/10108919.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67864896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0