CPSS Transactions on Power Electronics and Applications最新文献_第4页

Research on Fault-Tolerant Control Strategy of Open-End Winding Drive With a Common DC Bus Under a Switch Open-Circuit Fault 开关开路故障下具有共直流母线的开路绕组驱动器容错控制策略研究

CPSS Transactions on Power Electronics and Applications Pub Date : 2024-03-26 DOI: 10.24295/CPSSTPEA.2024.00005

Zhongjie Zou;Shuying Yang;Yufeng Zhang;Xing Zhang

{"title":"Research on Fault-Tolerant Control Strategy of Open-End Winding Drive With a Common DC Bus Under a Switch Open-Circuit Fault","authors":"Zhongjie Zou;Shuying Yang;Yufeng Zhang;Xing Zhang","doi":"10.24295/CPSSTPEA.2024.00005","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2024.00005","url":null,"abstract":"As the power core of a new energy vehicle, the operation reliability, especially the fault-tolerant operation ability of the electric drive system is directly related with the safety and user experience. The open-end winding topology with a common DC bus demonstrates many advantages and consequently attracts lots of attentions in the application of the new energy vehicles. However, most of existing fault-tolerant solutions for this topology, treat switch open-circuit fault as an open-circuit phase fault, which limits the system's fault-tolerant operation performance. Based on the analysis of the phase current and voltage characteristics after the switch open circuit fault, a fault-tolerant control scheme through biasing the fault-phase current is proposed in this paper, aiming to enhancing the load capability. Through this bias control the fault-phase current is only at one direction, i.e., positive or negative direction as expected, which allows the anti-parallel diode of the open-circuit switch be used to generate the voltage level desired. Therefore, the output voltage is not affected by the fault switch device. As found through mathematical calculation, both the output voltage and the output torque are increased greatly through the proposed fault tolerant scheme. At last, the effectiveness and advantages of proposed scheme is confirmed and demonstrated through experiments.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"9 2","pages":"230-241"},"PeriodicalIF":0.0,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10480323","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500383","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

Optimized PI Gain in UPQC Control Based on Improved Zero Attracting Normalized LMS 基于改进的吸引零归一化 LMS 的 UPQC 控制中的 PI 增益优化

CPSS Transactions on Power Electronics and Applications Pub Date : 2024-03-22 DOI: 10.24295/CPSSTPEA.2024.00007

Sabha Raj Arya;Sayed Javed Alam;Papia Ray

{"title":"Optimized PI Gain in UPQC Control Based on Improved Zero Attracting Normalized LMS","authors":"Sabha Raj Arya;Sayed Javed Alam;Papia Ray","doi":"10.24295/CPSSTPEA.2024.00007","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2024.00007","url":null,"abstract":"An Improved Reweighted Zero Attracting Normalized Least Mean Square (IRZA-NLMS) based control scheme is applied in 4-wire Unified Power Quality Conditioner (UPQC) to mitigate current and voltage-based power quality issues. The IRZA-NLMS algorithm has increased efficiency with regard to exploratory rate, steady-state error, and overcoming the drawbacks of NLMS techniques. To raise convergence rate of active signals, the IRZA-NLMS algorithm uses an efficient threshold-based gain function and involvement of zero attracting term is used to determine the inactive signals to their optimum zero stage. In addition to IRZA-NLMS algorithm, a Self-Adaptive Multi Population Rao (SAMP-Rao) optimization is employed to evolve gains of the proportional integral (PI) controller. The SAMP- Rao increases diversity of solution search by splitting total considered population into sub-population groups, each of which searches for the optimal solution in a search space, ensuring that no single individual is trapped in a local minima and allowing for better exploration and exploitation search. The Integral Time Absolute Error objective function is used to optimize the gains of PI controller of DC and AC link voltage. In laboratory environment, the prescribed method is implemented through Micro-lab box processor with MATLAB interface.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"9 2","pages":"242-251"},"PeriodicalIF":0.0,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10537111","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500385","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

Design of Edge-Enhanced Coil Structure to Obtain Constant Mutual Inductance With Horizontal Misalignment in Wireless Power Transfer Systems of Electric Vehicles 设计边缘增强型线圈结构，在电动汽车无线输电系统中实现水平错位下的恒定互感

CPSS Transactions on Power Electronics and Applications Pub Date : 2024-03-22 DOI: 10.24295/CPSSTPEA.2024.00006

Zhongqi Li;Zhongbang Chen;Minsheng Yang;Yu Cheng;Xinbo Xiong;Shoudao Huang

{"title":"Design of Edge-Enhanced Coil Structure to Obtain Constant Mutual Inductance With Horizontal Misalignment in Wireless Power Transfer Systems of Electric Vehicles","authors":"Zhongqi Li;Zhongbang Chen;Minsheng Yang;Yu Cheng;Xinbo Xiong;Shoudao Huang","doi":"10.24295/CPSSTPEA.2024.00006","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2024.00006","url":null,"abstract":"Horizontal misalignment to the \u0000<tex>$Y$</tex>\u0000 and X-axes can be as much as half the side length of a transmitting resonant coil or 10 cm for both dynamic and static wireless power transfer (DSWPT) systems. Misalignment to the Y-axis and X-axis may cause DSWPT systems to malfunction due to fluctuations in mutual inductance. In this paper, a structure of edge-enhanced coil (EEC) is proposed. The mutual inductance expression of the EEC structure is then established. Moreover, the variation of the mutual inductance of the EEC structure is obtained based on the mutual inductance expression. The study demonstrates that the mutual inductance of the EEC structure can be increased while reducing its fluctuation. The problem that quasi-constant mutual inductance is obtained at the expense of mutual inductance value is solved. Therefore, the high transmission efficiency of DSWPT systems can be obtained, and the transmission efficiency and output power can be maintained almost constant with the misalignment to the Y-axis or X-axis. The calculated, simulated, and measured results validating the effectiveness of the EEC structure are shown.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"9 2","pages":"141-151"},"PeriodicalIF":0.0,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10537113","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500189","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

Dynamic Current Balancing for Paralleled SiC MOSFETs With Circuit Mismatches Considering Circulating Current in Drive Circuit 并联 SiC MOSFET 的动态电流平衡（考虑驱动电路中的环流）与电路失配

CPSS Transactions on Power Electronics and Applications Pub Date : 2024-03-11 DOI: 10.24295/CPSSTPEA.2024.00004

Yang He;Junming Zhang;Shuai Shao

{"title":"Dynamic Current Balancing for Paralleled SiC MOSFETs With Circuit Mismatches Considering Circulating Current in Drive Circuit","authors":"Yang He;Junming Zhang;Shuai Shao","doi":"10.24295/CPSSTPEA.2024.00004","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2024.00004","url":null,"abstract":"Parallel operation of silicon carbide (SiC) metal-oxide-semiconductor field-effect transistors (MOSFETs) is necessary for high-power applications. However, the dynamic current sharing of paralleled devices is very sensitive to mis-matched circuit parasitic inductances due to their high switching speeds. Symmetric parasitic inductances are usually difficult to realize because of the limitation of circuit layout, especially when more than two devices are paralleled. In this paper, the effects of the circulating current in the drive circuit caused by the circuit mismatches, which result in dynamic current imbalance, are firstly analyzed in detail. The influences of related drive circuit parameters are presented, which reveal the mechanism of dynamic current sharing. Motivated by the analysis, a suppression method of the circulating current is proposed by inserting additional impedances in the drive circuit. Considering the coupling noises introduced by the additional impedances, the concept of blocking unit is proposed to guarantee the proper operation of the drive circuit. A simple circuit implementation and the operation principle are presented. Finally, the drive method is validated by both simulations and experiments. Experimental results show the peak current imbalance is reduced from 16.5% to 3.2% and the maximum switching loss imbalance is reduced by half.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"9 2","pages":"219-229"},"PeriodicalIF":0.0,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10466700","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500384","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

High-Resolution Digital PWM Optimization Method for Critical Path Delay in General FPGA 通用 FPGA 中关键路径延迟的高分辨率数字 PWM 优化方法

CPSS Transactions on Power Electronics and Applications Pub Date : 2024-02-26 DOI: 10.24295/CPSSTPEA.2024.00003

Bailong Xu;Qianming Xu;Peng Guo;Yingzhe Jia;Yandong Chen;An Luo

{"title":"High-Resolution Digital PWM Optimization Method for Critical Path Delay in General FPGA","authors":"Bailong Xu;Qianming Xu;Peng Guo;Yingzhe Jia;Yandong Chen;An Luo","doi":"10.24295/CPSSTPEA.2024.00003","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2024.00003","url":null,"abstract":"This paper proposes a high-resolution digital pulse width modulator (DPWM) signal optimization method for the critical path delay based on a field programmable gate array (FPGA), which mainly aims to improve the output regulation accuracy and linearity of the DPWM. This method realizes high-resolution and high-linearity DPWM output by constructing the logical symmetric multiplexer and the synchronous 2-to-1 selector for the critical path, and a simple placement constraint is used to reduce the critical path delay deviation. The high-resolution DPWM signal has the advantages of excellent linearity, easy expansion, and strong versatility, thus especially suitable for power electronic switching converters with high frequency, high accuracy, and high real-time control. The simulation and experimental results show that the DPWM with different FPGA achieves a resolution of 312.5 ps and high linearity, where R2 is up to 0.99999. Finally, the proposed method is verified in a 48 V to 1 V DC/DC converter with a switching frequency of 1 MHz.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"9 2","pages":"190-206"},"PeriodicalIF":0.0,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10445409","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500382","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

An Improved Sequential-Model Predictive Control for an O-Z-Source Inverter Without Weighting Factors 无权重因子的 O-Z 源逆变器改进型顺序模型预测控制

CPSS Transactions on Power Electronics and Applications Pub Date : 2024-02-07 DOI: 10.24295/CPSSTPEA.2024.00002

Xuan Wang;Wei Luo

{"title":"An Improved Sequential-Model Predictive Control for an O-Z-Source Inverter Without Weighting Factors","authors":"Xuan Wang;Wei Luo","doi":"10.24295/CPSSTPEA.2024.00002","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2024.00002","url":null,"abstract":"When finite set model predictive control is applied to an O-Z-source inverter (O-ZSI) containing a transformer, there are multiple control variables, it is difficult to adjust the weighting factors, and the currents on both sides of the transformer could change abruptly, making it impossible to calculate and derive reference values to directly predict and control the currents on both sides of the transformer. In this paper, an improved sequential-model predictive control is proposed for O-ZSI with a transformer without adjusting the weighting factors. By equating the transformer as a parallel connection of the excitation inductance with a set of ideal transformers without adjusting the weighting factors, the reference value of the magnetization current of the excitation inductance can be calculated according to the theoretical derivation, which can realize the predictive control of the O-ZSI. Simulation analysis and experimental results show that the proposed control method achieves the sequential-model predictive control of O-ZSI without adjusting the weight factors, with good steady-state and dynamic characteristics.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"9 2","pages":"207-218"},"PeriodicalIF":0.0,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10424684","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500254","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

The High Voltage Gain Coupled Inductor Boost-Zeta DC/DC Converter 高压增益耦合电感器 Boost-Zeta DC/DC 转换器

CPSS Transactions on Power Electronics and Applications Pub Date : 2024-01-23 DOI: 10.24295/CPSSTPEA.2024.00001

Xupeng Fang;Xuewen Lai;Xuchao Wang;Hang Zhao

引用次数: 0

A Cyber-Physical System Perspective on Large Signal Stability of DC Microgrid Clusters 直流微电网集群大信号稳定性的网络-物理系统视角

CPSS Transactions on Power Electronics and Applications Pub Date : 2024-01-02 DOI: 10.24295/CPSSTPEA.2023.00050

Sucheng Liu;Chao Fang;Xuefeng Huang;Qianjin Zhang;Wei Fang;Xiaodong Liu

{"title":"A Cyber-Physical System Perspective on Large Signal Stability of DC Microgrid Clusters","authors":"Sucheng Liu;Chao Fang;Xuefeng Huang;Qianjin Zhang;Wei Fang;Xiaodong Liu","doi":"10.24295/CPSSTPEA.2023.00050","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2023.00050","url":null,"abstract":"DC microgrid cluster (DCMGC) is a dynamic network formed by connecting a group of geographically neighboring DC microgrids (DCMGs) through tie-lines. Each DCMG collaborates with other DCMGs to achieve maximum economic benefits through flexible power flow management within the DCMG and at the system level. Therefore, DCMGCs require communication, computing, and control to manage the power flow. As a result, the DCMGCs are naturally represented as cyber-physical systems (CPSs). However, DCMGCs are of high penetration of distributed energy resources, which creates significant randomness at both resource and load sides. Consequently, these systems will experience large disturbances leading to serious stability problems like high oscillations or even collapse. In this paper, Takagi-Sugeno (T-S) modeling is utilized to reduce the large signal Lyapunov stability of DCMGs to a series of linear matrix inequalities (LMIs). The impact of key circuit parameters, control parameters, communication delay, and cyber-attacks on the large signal stability of DCMGCs is revealed, and the region of attraction (ROA) of the network is estimated as well. Finally, the large signal stability analysis is verified by experimental results. The findings of this work will be instrumental in developing more effective control strategies to enhance the stability and reliability of DCMGCs.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"9 1","pages":"112-125"},"PeriodicalIF":0.0,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10379579","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140351534","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

Circulating Current Suppression of Power Conversion Systems Under Unbalanced Conditions: Large-Signal Model-Based Analysis 非平衡条件下电源转换系统的环流抑制：基于大信号模型的分析

CPSS Transactions on Power Electronics and Applications Pub Date : 2024-01-02 DOI: 10.24295/CPSSTPEA.2023.00051

Guangyu Song;Xinghua Liu;Gaoxi Xiao;Liansong Xiong;Badong Chen;Peng Wang

{"title":"Circulating Current Suppression of Power Conversion Systems Under Unbalanced Conditions: Large-Signal Model-Based Analysis","authors":"Guangyu Song;Xinghua Liu;Gaoxi Xiao;Liansong Xiong;Badong Chen;Peng Wang","doi":"10.24295/CPSSTPEA.2023.00051","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2023.00051","url":null,"abstract":"This paper proposes a large-signal model-based circulating current control approach to achieve the circulating current suppression and power quality improvement for power conversion systems (PCSs) under unbalanced conditions. Specifically, first of all, the adaptive capacitive virtual impedance (VI) is developed based on the change of the current difference to minimize the positive-sequence circulating current (PSCC). The robust droop control is introduced to tune the positive-sequence voltage output and implement the load sharing. Secondly, the negative-sequence reference signal is generated to enable negative-sequence current sharing. The secondary control signal is integrated with the positive-sequence voltage output to modify the voltage reference of the PCS and realize the unbalanced voltage compensation. Finally, the zero-sequence circulating current (ZSCC) controller is proposed by introducing the Q-PR controller and the feedforward term to suppress the ZSCC and attenuate the effect of filtering parameters on zero-axis current. The Lyapunov theory-based stability analysis is provided to prove the stabilization of the system modeled by a large signal. Experiments are presented to demonstrate the effectiveness of the proposed approach.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"9 2","pages":"152-165"},"PeriodicalIF":0.0,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10379580","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500253","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

Design and Implementation of Model Parameter Independent Robust Current Control Scheme of Three-Phase Inverter - A Neural Network-Based Classification Approach 三相逆变器模型参数独立鲁棒电流控制方案的设计与实现 - 一种基于神经网络的分类方法

CPSS Transactions on Power Electronics and Applications Pub Date : 2024-01-02 DOI: 10.24295/CPSSTPEA.2023.00052

Machina Venkata Siva Prasad;Koduru Sriranga Suprabhath;Sreedhar Madichetty;Sukumar Mishra;Abdelkader El Kamel

{"title":"Design and Implementation of Model Parameter Independent Robust Current Control Scheme of Three-Phase Inverter - A Neural Network-Based Classification Approach","authors":"Machina Venkata Siva Prasad;Koduru Sriranga Suprabhath;Sreedhar Madichetty;Sukumar Mishra;Abdelkader El Kamel","doi":"10.24295/CPSSTPEA.2023.00052","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2023.00052","url":null,"abstract":"In recent years, there has been a notable surge of interest in integrating advanced control techniques within power electronic systems. This article presents the utilization of neural network (NN) controllers within the realm of three-phase inverter control. While traditional control methods like proportional integral-derivative (PID) and pulse width modulation (PWM) have proven effective, they sometimes fall short of meeting the demands of modern applications. These contemporary requirements encompass heightened precision, adaptability to changing conditions, and resilience against uncertainties. This study employs an NN controller to achieve current control in a three-phase standalone inverter system. A dataset is prepared using model predictive control (MPC) to train the neural network model, and appropriate hyperparameters are chosen, facilitating offline learning. The entire setup is implemented within the MATLAB Simulink platform, allowing for an in-depth analysis of its performance. This analysis includes the assessment of prediction errors and the evaluation of total harmonic distortion (THD). In addition, the article conducts a comparative study between the neural network controller and the MPC controller, presenting and discussing the obtained results. Further, the proposed method is realized in the hardware in loop OPAL - RT setup, and the real-time performance is analyzed.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"9 2","pages":"166-174"},"PeriodicalIF":0.0,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10379581","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500386","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