CPSS Transactions on Power Electronics and Applications最新文献_第10页

Linear Extended State Observer-Based Distributed Secondary Control of DC Microgrids Under False Data Injection Attacks 虚假数据注入攻击下基于线性扩展状态观测器的直流微电网分布式二级控制

CPSS Transactions on Power Electronics and Applications Pub Date : 2024-07-16 DOI: 10.24295/CPSSTPEA.2024.00013

Yiwei Feng;Shuangshuang Wang

引用次数: 0

A Constant Common Mode Voltage Single-Phase Five-Level Transformerless PV Inverter Considering the Effect of Switch Device Junction Capacitance 考虑开关器件结电容影响的恒定共模电压单相五级无变压器光伏逆变器

CPSS Transactions on Power Electronics and Applications Pub Date : 2024-06-11 DOI: 10.24295/CPSSTPEA.2024.00010

Mln Vital;Venu Sonti;Yam P. Siwakoti;Sze Sing Lee;Sachin Jain

{"title":"A Constant Common Mode Voltage Single-Phase Five-Level Transformerless PV Inverter Considering the Effect of Switch Device Junction Capacitance","authors":"Mln Vital;Venu Sonti;Yam P. Siwakoti;Sze Sing Lee;Sachin Jain","doi":"10.24295/CPSSTPEA.2024.00010","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2024.00010","url":null,"abstract":"Constant common mode voltage (CCMV) is critical in Solar Photovoltaic (SPV) systems. Maintaining CCMV further eliminates the voltage transitions across the parasitic capacitance of the PV panel, making it a low-frequency output voltage wave-form. This further reduces the CMC and leakage current in the SPV systems. This paper presents a CCMV switched capacitor PV inverter configuration that maintains a low-frequency terminal voltage while considering the effect of switch device junction capacitance (SDJC). Thus, the proposed configuration eliminates the transitions in the common mode and terminal voltage due to the SDJC. The two switched capacitors employed in the proposed configuration are charged and discharged within each switching period, supporting the self-charge balance feature apart from low voltage and RMS current rating, reducing its size and value. Further, the proposed system effectively utilizes the PV source as switch capacitors and the DC-bus buffer capacitor across the PV source comes in parallel in each switching period. The proposed configuration can also operate at lower modulation indices, generating three levels with CCMV. A new mathematical analysis considering SDJC is given for the derivation of expression for CMV and terminal voltage, which is further verified using simulation and experimental results.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"9 3","pages":"313-324"},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10554797","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142376620","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

A Novel Model Predictive Current Control With Reduced Computational Burden Based on Discrete Space Vector Modulation for PMSM Drives 基于离散空间矢量调制的新型模型预测电流控制，可减轻 PMSM 驱动器的计算负担

CPSS Transactions on Power Electronics and Applications Pub Date : 2024-06-11 DOI: 10.24295/CPSSTPEA.2024.00009

Jun Sun;Yong Yang;Jiefeng Hu;Xinan Zhang;Xinghe Li;Jose Rodriguez

{"title":"A Novel Model Predictive Current Control With Reduced Computational Burden Based on Discrete Space Vector Modulation for PMSM Drives","authors":"Jun Sun;Yong Yang;Jiefeng Hu;Xinan Zhang;Xinghe Li;Jose Rodriguez","doi":"10.24295/CPSSTPEA.2024.00009","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2024.00009","url":null,"abstract":"Discrete space vector modulation (DSVM) technique is commonly adopted in model predictive control (MPC) to mitigate current harmonics and torque ripples. Nevertheless, the employment of DSVM typically leads to heavy computational burden and high switching frequency (SF). To solve these problems, a novel model predictive current control (MPCC) scheme based on DSVM is proposed in this paper for permanent magnet synchronous motor (PMSM) drives. Firstly, a simple voltage vectors (VVs) pre-selection strategy based on the stator flux increment is introduced to eliminate the redundant virtual VVs generated by DSVM for the purpose of lower computational burden. Then, a hierarchical search strategy is designed to generate the candidate VVs online, which can further simplify the DSVM technique. In addition, an efficient optimal switching sequence (OSS) method is also employed to reduce the switching losses without weakening the control performance. Compared to the existing strategies, the proposed scheme possesses lower complexity and SF as well as superior performance. The effectiveness of the proposed scheme is supported by comparative experimental results on a PMSM platform.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"9 3","pages":"292-303"},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10554795","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142376685","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

Data-Driven Parameter Inversion for DC Fault Current Analytical Solution of Modular Multilevel Converter-Based High Voltage DC Grid 基于模块化多电平转换器的高压直流电网直流故障电流分析解决方案的数据驱动参数反演

CPSS Transactions on Power Electronics and Applications Pub Date : 2024-06-11 DOI: 10.24295/CPSSTPEA.2024.00008

Meiqin Mao;Xun Jiang;Kaifan Hu;Liuchen Chang

{"title":"Data-Driven Parameter Inversion for DC Fault Current Analytical Solution of Modular Multilevel Converter-Based High Voltage DC Grid","authors":"Meiqin Mao;Xun Jiang;Kaifan Hu;Liuchen Chang","doi":"10.24295/CPSSTPEA.2024.00008","DOIUrl":"https://doi.org/10.24295/CPSSTPEA.2024.00008","url":null,"abstract":"In a multi-terminal modular multilevel converter-based high voltage direct current (MMC-HVDC) grid, due to the coupling between converter stations, it is difficult to obtain an accurate analytical solution on the DC fault current through the traditional equivalent resistance-inductance-capacitance circuit model (E-RLCM). In this paper, a data-driven parameter inversion method is proposed to derive the accurate equivalent parameters in the E-RLCM by combining the electromagnetic transient simulation data with the backpropagation neural network, and the polynomial regression. In this way, the accurate analytic calculation expression of the DC fault current for a multi-terminal MMC-HVDC grid with a pole-to-pole fault (PTPF) is obtained. To verify the effectiveness of the proposed method, simulations are performed for a four-terminal MMC-HVDC grid with a PTPF by PSCAD. The results show that the average calculation error of the DC fault current using the inversion parameters is significantly reduced from over 10% to 2.84%.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"9 3","pages":"274-282"},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10554806","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142376879","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

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