Journal of Power Electronics最新文献_第2页

Novel sorted PWM strategy and control for photovoltaic-based grid-connected cascaded H-bridge inverters 光伏并网级联 H 桥逆变器的新型排序 PWM 策略与控制

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-09-06 DOI: 10.1007/s43236-024-00902-5

Gudipati Maheswari, K Manjunatha Sharma, Prajof Prabhakaran

{"title":"Novel sorted PWM strategy and control for photovoltaic-based grid-connected cascaded H-bridge inverters","authors":"Gudipati Maheswari, K Manjunatha Sharma, Prajof Prabhakaran","doi":"10.1007/s43236-024-00902-5","DOIUrl":"https://doi.org/10.1007/s43236-024-00902-5","url":null,"abstract":"This paper proposes a novel sorted level-shifted U-shaped carrier-based pulse width modulation (SLSUC PWM) strategy combined with an input power control approach for a 13-level cascaded H-bridge multi-level inverter designed for grid connection, specifically tailored for photovoltaic (PV) systems, which avoids a double-stage power conversion configuration. In this methodology, every inverter generates a quasi-square output voltage waveform with a width that is intricately linked to the output power of its corresponding PV panel. The application of this SLSUC pulse width modulation technique with input power control in a solar energy-based 13-level grid-tied inverter facilitates precise maximum power point (MPP) tracking for each of the PV panels under uniform and non-uniform irradiation conditions and ensures the consistent maintenance of capacitor voltage balance. Moreover, this novel SLSUC PWM method for 13-level inverters offers a range of benefits, including a low total harmonic distortion (THD) in the output voltage of the multi-level inverter and higher inverter and MPPT efficiencies over the existing PWM techniques. To verify the efficacy of the proposed control method over existing techniques, a PV-based grid-connected multi-level inverter with the proposed control strategy undergoes modeling and simulation using MATLAB/Simulink. Then, experimental hardware-in-the-loop (EHIL) testing is conducted to confirm and evaluate its effectiveness.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"13 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200490","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

DSP-based adaptive digital control method for frequency tracking and impedance angle control of MCR–WPT systems 基于 DSP 的自适应数字控制方法，用于 MCR-WPT 系统的频率跟踪和阻抗角控制

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-09-05 DOI: 10.1007/s43236-024-00903-4

Jin Luo, Hao Shen, Xiaojuan Xu

{"title":"DSP-based adaptive digital control method for frequency tracking and impedance angle control of MCR–WPT systems","authors":"Jin Luo, Hao Shen, Xiaojuan Xu","doi":"10.1007/s43236-024-00903-4","DOIUrl":"https://doi.org/10.1007/s43236-024-00903-4","url":null,"abstract":"Aiming at the problem where the transmission power and transmission efficiency are affected by frequency detuning in wireless power transfer (WPT), a frequency tracking method using current-over-zero comparison and a digital control method using a dynamic time lag is proposed based on the digital signal processing (DSP) technology. The proposed method only needs to determine the time when current passes the zero point and start current sampling. Then a simple digital phase-locked loop (PLL) can be accomplished by comparing the current sampling value with the setting current value at the zero point. Combined with voltage–current double closed-loop phase-shift control, constant current or voltage output is realized. Finally, a DSP-based experimental setup with an output power of 300 W is designed for a series of verification experiments. The findings show that the method can achieve fast frequency tracking as well as phase adjustment when the air-gap distance and load are changed. It also satisfies constant current or voltage output. More importantly, the transmission efficiency of the weak inductive state achieved by the proposed method is better than that of the fixed-frequency and resonant-frequency state. In addition, it is 5% higher than that of the fixed-frequency state.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"2 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200492","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

MDT-MVMD-based frequency modulation for photovoltaic energy storage systems 基于 MDT-MVMD 的光伏储能系统频率调制技术

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-09-03 DOI: 10.1007/s43236-024-00895-1

Dongdong Li, Hao Chen, Yin Yao, David Wenzhong Gao, Bo Xu

{"title":"MDT-MVMD-based frequency modulation for photovoltaic energy storage systems","authors":"Dongdong Li, Hao Chen, Yin Yao, David Wenzhong Gao, Bo Xu","doi":"10.1007/s43236-024-00895-1","DOIUrl":"https://doi.org/10.1007/s43236-024-00895-1","url":null,"abstract":"Due to the rapid advances in renewable energy technologies, the growing integration of renewable sources has led to reduced resources for Fast Frequency Response (FFR) in power systems, challenging frequency stability. Photovoltaic (PV) plants are a key component of clean energy. To enable PV plants to contribute to FFR, a hybrid energy system is the most favorable candidate, and its power sharing algorithm significantly influences the FFR capability of PV plants. In this study, a model is established for a Virtual Synchronous Generator Hybrid Energy Storage System (VSG HESS). In addition, the mechanism by which PV plants participate in fast frequency regulation is analyzed. Subsequently, a novel multi-dimensional time filtering algorithm is proposed to overcome the problems associated with the short frequency sampling periods and insufficient measurement data in PV plants. Specifically, the techniques of Multi-Delay embedding Transform (MDT), Tucker decomposition, and Multivariate Variational Modal Decomposition (MVMD) are integrated into a unified framework for improved frequency resolution prior to frequency division. Finally, the effectiveness of the proposed method is validated through online simulations performed on a VSG-controlled PV storage microgrid platform. Simulation results reveal that the proposed method is able to outperform conventional filtering algorithms in terms of frequency division accuracy and calculation speed.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200361","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

Dual-layer multi-mode energy management optimization strategy for electric vehicle hybrid energy storage systems 电动汽车混合储能系统的双层多模式能量管理优化策略

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-09-03 DOI: 10.1007/s43236-024-00886-2

Jutao Hu, Hongjuan Zhang, Yan Gao, Baoquan Jin

{"title":"Dual-layer multi-mode energy management optimization strategy for electric vehicle hybrid energy storage systems","authors":"Jutao Hu, Hongjuan Zhang, Yan Gao, Baoquan Jin","doi":"10.1007/s43236-024-00886-2","DOIUrl":"https://doi.org/10.1007/s43236-024-00886-2","url":null,"abstract":"Hybrid energy storage systems (HESSs) play a crucial role in enhancing the performance of electric vehicles (EVs). However, existing energy management optimization strategies (EMOS) have limitations in terms of ensuring an accurate and timely power supply from HESSs to EVs, leading to increased power loss and shortened battery lifespan. To ensure an accurate and timely power supply from HESSs to EVs, this paper proposes a dual-layer multi-mode (DLMM) EMOS. This strategy comprises two layers. The upper layer is a backpropagation neural network (BPNN) model enhanced by the particle swarm optimization (PSO) algorithm. It is used for real-time HESS power demand prediction. In the lower layer, a HESS operational mode determination process is formulated, and an objective optimization function is established based on HESS power loss. Under constraints designed according to the HESS state parameters, the PSO algorithm is utilized to search for the optimal power allocation ratio of the HESS in real time. The proposed DLMM-EMOS strategy is capable of providing optimal power reference values for the batteries and ultracapacitors of the HESS. The DLMM-EMOS is tested on an electrical experimental platform using US06, NEDC, and WLTP driving cycles. Results indicate that the DLMM-EMOS effectively reduces the HESS power loss while enhancing the driving range of the battery.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"26 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200491","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

Bidirectional buck–boost converter-based active power decoupling method for single-phase photovoltaic grid-connected inverters 基于双向降压-升压转换器的单相光伏并网逆变器有功功率解耦方法

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-08-31 DOI: 10.1007/s43236-024-00892-4

Yingying Zhang, Chenyu Sun, Shuo Wang, Yueteng Shen, Zhiwei Chen

{"title":"Bidirectional buck–boost converter-based active power decoupling method for single-phase photovoltaic grid-connected inverters","authors":"Yingying Zhang, Chenyu Sun, Shuo Wang, Yueteng Shen, Zhiwei Chen","doi":"10.1007/s43236-024-00892-4","DOIUrl":"https://doi.org/10.1007/s43236-024-00892-4","url":null,"abstract":"In a single phase, two-stage photovoltaic (PV) grid-connected system, the transient power mismatch between the dc input and ac output generates second-order ripple power (SRP). To filter out SRP, bulky electrolytic capacitors are commonly employed. However, these capacitors diminish the power density and reliability of the system. To address this issue, this paper introduces a power decoupling method. This method utilizes a bidirectional buck–boost converter, connected in parallel to the DC link, to divert SRP to a small capacitor within the single-phase grid-connected PV inverter, eliminating the need for electrolytic capacitors. The proposed topology consists of a dc–dc stage, a decoupling stage and an inverter stage, where each stage is controlled independently. In consideration of the instantaneous power fluctuations on the filtering elements, the optimal voltage reference of the decoupling capacitor is derived and implemented in the proposed decoupling control strategy. Thus, the capacitance for decoupling is minimized and the volume of the inverter is reduced. Discontinuous current control is adopted to charge and discharge the decoupling capacitor, which simplifies the decoupling control design. Finally, the steady-stage and dynamic responses of the proposed inverter are validated by simulation and experimental results in a 1-kW PV prototype.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"4 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200494","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

Rotor design and optimization of synchronous reluctance machine with low torque ripple 低扭矩纹波同步磁阻机的转子设计与优化

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-08-30 DOI: 10.1007/s43236-024-00898-y

Xiaoyi Chai, Yan Dong

{"title":"Rotor design and optimization of synchronous reluctance machine with low torque ripple","authors":"Xiaoyi Chai, Yan Dong","doi":"10.1007/s43236-024-00898-y","DOIUrl":"https://doi.org/10.1007/s43236-024-00898-y","url":null,"abstract":"The rotor structure of a synchronous reluctance machine (SynRM) affects the variation of reluctance and has an important effect on the torque performance of the machine. To improve the torque performance of SynRM, the optimization design of the rotor structure is essential. In this paper, a multi-objective snake optimizer (MOSO) is proposed by combining snake optimizer with multi-objective optimization strategies. Integrated with finite element analysis and the MOSO optimization method, the SynRM with a fluid-shaped rotor structure is optimized to improve torque performance. Compared with several algorithms, such as multi-objective genetic algorithm, multi-objective particle swarm optimizer, etc., the MOSO optimization method achieves better results in optimizing the fluid-shaped rotor structure with higher torque and lower torque ripple of the machines on its Pareto frontier, which verifies the superiority of the proposed MOSO optimization method. In addition, a Bezier-shaped flux barrier tip determined by curve fitting with arbitrariness is proposed to reduce the torque ripple of SynRM further. Different machines on the Pareto front of the MOSO optimization method are selected to optimize the shape of the flux barrier tip. The percentages of reduction in torque ripple for the SynRMs that have been designed with Bezier-shaped flux barrier tips are 27.27%, 47.21%, 69.71%, and 78.71%, respectively. The decrease of torque ripple for the several SynRMs verifies the effectiveness of the Bezier-shaped flux barrier tip.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"38 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200493","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

Multi-objective optimization and analysis of divided-layer varying-network magnetic circuit based axial field flux-switching magnetic gear composite motors 基于分层变化网络磁路的轴向磁通开关磁齿轮复合电机的多目标优化与分析

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-08-30 DOI: 10.1007/s43236-024-00900-7

Jinru Cheng, Wei Zhang, Xin Yin, Feiyang Ding

{"title":"Multi-objective optimization and analysis of divided-layer varying-network magnetic circuit based axial field flux-switching magnetic gear composite motors","authors":"Jinru Cheng, Wei Zhang, Xin Yin, Feiyang Ding","doi":"10.1007/s43236-024-00900-7","DOIUrl":"https://doi.org/10.1007/s43236-024-00900-7","url":null,"abstract":"The axial field flux-switching magnetic gear composite machine (AFFSMGCM) is a new type of magnetic field modulation machine with a dual-rotor. Due to the complicated structure of the AFFSMGCM and the nonlinear characteristic of dual magnetic fields coupling, a divided-layer varying-network magnetic circuit (VNMC) method is developed to optimize the machine to obtain a high calculation accuracy and reduce operation time. First, an accurate VNMC model is established according to the magnetic field distribution of an AFFSMGCM. The magnetic field coupling of the rotor and stator permanent magnets (PMs) is performed by the rotary magnetic modulation ring (RMMR). Thus, the magnetic circuit of the RMMR is divided into two layers to reduce the influence of magnetic saturation and leakage flux on the calculation accuracy of the permeances. Then the particle swarm optimization (PSO) method is used to achieve multi-objective optimization of the AFFSMGCM based on the divided-layer VNMC for achieving a large torque, low torque ripple and high efficiency. Next, a multi-physics field coupling analysis is carried out to verify the optimized AFFSMGCM. Finally, a prototype is built and experiments are carried out to validate the AFFSMGCM.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"50 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200495","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

Maximum power tracking algorithm for single photovoltaic module without position sensors 无位置传感器的单个光伏模块最大功率跟踪算法

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-08-27 DOI: 10.1007/s43236-024-00894-2

Yan Chen, Shunyang Ming, Hengbo Yu, Junli Meng, Jian Lin

{"title":"Maximum power tracking algorithm for single photovoltaic module without position sensors","authors":"Yan Chen, Shunyang Ming, Hengbo Yu, Junli Meng, Jian Lin","doi":"10.1007/s43236-024-00894-2","DOIUrl":"https://doi.org/10.1007/s43236-024-00894-2","url":null,"abstract":"To address the issue of power utilization system redundancy in methods focusing solely on either module solar-tracking or electrical maximum power point tracking (MPPT) to enhance photovoltaic (PV) generation efficiency, the integration of PV module solar-tracking with inverter maximum power tracking is proposed to streamline the system. Combined with cost–performance analyses of single-axis and dual-axis solar-tracking, the surface characteristic relationship between the single-axis azimuth change of the module and the output voltage and output power is studied, and the output characteristic surface of the PV system is constructed. In this paper, a maximum power tracking algorithm without a position sensor on the output characteristic surface is designed, requiring only the acquisition of electrical parameters from the PV modules. Experimental comparison and analysis show that the algorithm effectively combines the azimuth tracking and the electrical maximum power tracking algorithm without a position sensor, and realizes the maximum power output of a single PV module. Under the condition of simulation settings, the output power of module is increased by 14.97–21.91%, and the daily power generation is increased by 20.42% on average under varying experimental weather conditions, providing a new idea for the effective utilization of solar energy by PV modules.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"42 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200496","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

Discontinuous PWM-based common-mode voltage suppression method for three-phase inverter 基于非连续 PWM 的三相逆变器共模电压抑制方法

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-08-27 DOI: 10.1007/s43236-024-00897-z

Jin Chai, Weisheng Wang, Tong Liu

引用次数: 0

Overview of topology research on hybrid direct current circuit breakers 混合直流断路器拓扑研究概述

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-08-27 DOI: 10.1007/s43236-024-00893-3

Can Ding, Kaiming Li, Zhao Yuan, Guang Pu

{"title":"Overview of topology research on hybrid direct current circuit breakers","authors":"Can Ding, Kaiming Li, Zhao Yuan, Guang Pu","doi":"10.1007/s43236-024-00893-3","DOIUrl":"https://doi.org/10.1007/s43236-024-00893-3","url":null,"abstract":"Continuous expansion in the scale of high-voltage flexible direct current (DC) transmission systems has resulted in higher requirements for clearing fault currents. The hybrid DC circuit breaker, as the most promising DC circuit breaker, can effectively isolate and remove the faults that occur in DC power grids. At present, hybrid DC circuit breakers can be divided into two types: two port and multiport. Two-port DC circuit breakers are used in a single line and have the advantages of simple and flexible control. Multiport DC circuit breakers are used at the DC bus and control the fault isolation operation of multiple lines connected to the bus. When compared to two-port DC circuit breakers, multiport DC circuit breakers significantly reduce the number of configurations, reduce costs, and occupy less space. First, this article classifies hybrid DC circuit breakers into two-port and multiport categories, and refines and organizes the two major categories. Then, it analyzes the functionality, reliability, control complexity, and economy of each scheme based on the topology structures proposed in the current literature. Finally, prospects for future research on hybrid DC circuit breakers are presented.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"2 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200398","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