Journal of Power Electronics最新文献_第4页

Single-switch open-circuit diagnosis method based on 3D vector shift for T-type three-level inverters 基于三维矢量移动的 T 型三电平逆变器单开关开路诊断方法

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-07-22 DOI: 10.1007/s43236-024-00879-1

Rong Cai, Liming Song, Qibin Xiong, Bo Yang, Xiaofeng Dong, Kun Huang

{"title":"Single-switch open-circuit diagnosis method based on 3D vector shift for T-type three-level inverters","authors":"Rong Cai, Liming Song, Qibin Xiong, Bo Yang, Xiaofeng Dong, Kun Huang","doi":"10.1007/s43236-024-00879-1","DOIUrl":"https://doi.org/10.1007/s43236-024-00879-1","url":null,"abstract":"Fault diagnosis plays a significant role in improving the reliability of T-type three-level inverters. Therefore, a method for diagnosing the IGBT open-circuit faults of T-type three-level inverters based on vector 3D offset is proposed in this paper. The characteristics of the voltage vector shift in single-switch open-circuit faults under three-dimensions are analyzed. In the first dimension, the fault phase was identified by the different offset of three-phase voltage vectors at the polar coordinates. In the second dimension, the output voltage vectors were mapped to the common-mode voltage level in space, and faulty bridge arms were identified by the transition direction of the common-mode voltage. In the third dimension, the specific faulty transistor within a set of bridge arms was identified by the voltage difference between the upper and lower capacitors on the DC side, which was caused by the regional shift of the voltage vectors in the plane. Experimental results show that the proposed method can effectively diagnose the OC faults of 12 switches in T-type three-level inverters. The key advantages of the proposed method are its capability to significantly enhance fault diagnosis speed, bolster diagnostic robustness, and remain impervious to variations in load and modulation coefficients. Moreover, it eliminates the need for additional sampling circuits.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738293","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

Research on rapid parameter identification in DC-DC converter digital twin systems considering phase deviation 考虑相位偏差的 DC-DC 转换器数字孪生系统中的快速参数识别研究

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-07-22 DOI: 10.1007/s43236-024-00881-7

Hui Li, Hongzhi Liu, Lijuan Li, Changhao Zhu

{"title":"Research on rapid parameter identification in DC-DC converter digital twin systems considering phase deviation","authors":"Hui Li, Hongzhi Liu, Lijuan Li, Changhao Zhu","doi":"10.1007/s43236-024-00881-7","DOIUrl":"https://doi.org/10.1007/s43236-024-00881-7","url":null,"abstract":"This paper addresses the issue of lag caused by the sampling phase deviation in BUCK converter digital twin-parameter identification, and proposes a phase compensation method to improve digital twin-parameter identification. After sampling the characteristic signals of the BUCK converter, the proposed method introduces a Hilbert transform to compensate for the phase deviation in both the physical converter and the digital twin converter signals. By performing phase compensation before calculating the fitting degree of the digital twin, this method reduces the impact of phase deviation on the fitting degree calculation, allowing the fitting degree to more accurately reflect the true differences among converter signals. This reduces the computational redundancy caused by phase deviation and enables the digital twin converter to promptly update parameters. In addition, a BUCK converter digital twin platform is designed for experimental validation. Experimental results demonstrate that the proposed improved digital twin-parameter identification method saves 50% of optimization iterations when compared to traditional methods without compromising accuracy. This indicates that parameter identification can achieve accurate results with fewer optimization iterations, effectively enhancing the speed of digital twin converter parameter identification and facilitating subsequent converter-field coupling analysis.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"20 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141745847","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-frequency modulation based mutual inductance and load identification method for inductively coupled power transfer systems 基于双频调制的电感耦合功率传输系统互感和负载识别方法

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-07-20 DOI: 10.1007/s43236-024-00869-3

Jixin Yang, Liming Shi, Zhenggang Yin, Manyi Fan, Zixin Li

{"title":"Dual-frequency modulation based mutual inductance and load identification method for inductively coupled power transfer systems","authors":"Jixin Yang, Liming Shi, Zhenggang Yin, Manyi Fan, Zixin Li","doi":"10.1007/s43236-024-00869-3","DOIUrl":"https://doi.org/10.1007/s43236-024-00869-3","url":null,"abstract":"In inductively coupled power transfer (ICPT) systems, the mutual inductance and load are the key parameters to realize high performance control, which is difficult to measure directly in rail transit. Thus, a method realizing mutual inductance and load identification using only the output voltage and current of a high-frequency inverter is proposed in this paper. Dual-frequency modulation, where one is the resonant frequency and the other is the non-resonant frequency, is used in the high-frequency inverter. Then the amplitudes and phases of the output voltage and current of the high-frequency inverter at the resonant frequency and the non-resonant frequency can be obtained based on the fast Fourier transform (FFT) method. The circuit is decomposed according to different frequencies. Then a mathematical model of the ICPT system is established. Therefore, the mutual inductance and load can be identified. Finally, the effectiveness of the proposed method is verified based on an ICPT prototype. Experimental results show that the identification errors of mutual inductance and load are less than 5%.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"253 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738297","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

Novel common-mode voltage suppression method for indirect matrix converters based on open-active vectors 基于开式有功矢量的间接矩阵转换器新型共模电压抑制方法

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-07-20 DOI: 10.1007/s43236-024-00857-7

Shuqing Wu, Shanhu Li, Min Cai, Xu Liu, Luyu Zhang

引用次数: 0

Hybrid control of ISOP-DAB converters based on double-loop decoupling 基于双环解耦的 ISOP-DAB 转换器混合控制

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-07-18 DOI: 10.1007/s43236-024-00876-4

Haijun Tao, Mengen Zhao, Zheng Zheng, Jiayao Song, Chenjie Zhang

引用次数: 0

RC-IGBT snapback suppression using silicon germanium collector regions 利用硅锗集电区抑制 RC-IGBT 回跳

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-07-18 DOI: 10.1007/s43236-024-00875-5

Tae Young Yoon, Dong Gyu Park, Seong Yun Kim, Garam Kim, Sangwan Kim, Jang Hyun Kim

引用次数: 0

Modelling and optimization of planar transformers for high power density step-down DC–DC converters 高功率密度降压型 DC-DC 转换器平面变压器的建模与优化

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-07-18 DOI: 10.1007/s43236-024-00874-6

Ziyi Ji, Ziqing Cao, Fuhong Min, Minjie Xu

{"title":"Modelling and optimization of planar transformers for high power density step-down DC–DC converters","authors":"Ziyi Ji, Ziqing Cao, Fuhong Min, Minjie Xu","doi":"10.1007/s43236-024-00874-6","DOIUrl":"https://doi.org/10.1007/s43236-024-00874-6","url":null,"abstract":"The optimization of planar transformers with integrated magnetic components is an important research focus when it comes to high efficiency and high power density step-down DC–DC converters. In this paper, to overcome the shortcomings of LLC topologies in variable frequency operation, a DC–DC converter of two-stage regulation with GaN (gallium nitride)–MOSFET is designed to achieve wide voltage range conversion. The planar transformer of the full-bridge LLC circuit is optimized at 12 V DC bus and high-power scenarios. An equivalent resonant inductance model based on the stray inductance and JMAG leakage inductance simulation is proposed, which results in only one magnetic component being used in the LLC. A method to control the resonant inductance and improve the efficiency by changing the PCB trace on the secondary side of the high-step-down-ratio (14:1:1) planar transformer is proposed. To verify the optimization model, two sets of converters with optimized planar transformers, using PQ-type ferrite magnetic cores, have been built. Experimental results show that the voltage conversion range is from 250–500 to 9–16 V, and the converter efficiency is increased to 94.39%@3 kW.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"58 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738298","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

Joint prediction of the capacity and temperature of Li-ion batteries by using ConvLSTM Network 利用 ConvLSTM 网络联合预测锂离子电池的容量和温度

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-07-17 DOI: 10.1007/s43236-024-00851-z

Dong Wang, Jian Li, Peng Ding, Ning Yao

{"title":"Joint prediction of the capacity and temperature of Li-ion batteries by using ConvLSTM Network","authors":"Dong Wang, Jian Li, Peng Ding, Ning Yao","doi":"10.1007/s43236-024-00851-z","DOIUrl":"https://doi.org/10.1007/s43236-024-00851-z","url":null,"abstract":"Predicting the capacity and temperature of lithium-ion batteries is of critical significance to ensure their safety and stability, and consequently, extend the service life of battery systems. However, the degradation of capacity and thermal performance is typically regarded as independent processes, disregarding their coupling relationship. In response, this study constructs a combined model based on convolutional long short-term memory for the joint prediction of the reversible capacity and peak discharge temperature of batteries. The model’s feature extraction and pattern reconstruction capabilities are well-acknowledged. A variety of charging and discharging features (e.g., current, voltage, temperature, and incremental capacity) are analyzed and correlated with the evolution trends of battery capacity and temperature during long-term operation. Moreover, the evident phenomenon of capacity regeneration caused by intermittent rest is considered. Finally, the prediction results for different cells from public datasets show that the root-mean-square errors of capacity prediction vary from 0.01179 to 0.03304, and the mean absolute percentage error of peak discharge temperature prediction can be basically kept lower than 0.6%.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"26 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141719809","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

Advanced lower order harmonic torque suppression by P-PWM in high-performance scalar-controlled IM drives 在高性能标量控制 IM 驱动器中通过 P-PWM 先进地抑制低阶谐波转矩

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-07-11 DOI: 10.1007/s43236-024-00873-7

Shivam Yadav, Sanjeev Kumar Mallik, Ambarisha Mishra

{"title":"Advanced lower order harmonic torque suppression by P-PWM in high-performance scalar-controlled IM drives","authors":"Shivam Yadav, Sanjeev Kumar Mallik, Ambarisha Mishra","doi":"10.1007/s43236-024-00873-7","DOIUrl":"https://doi.org/10.1007/s43236-024-00873-7","url":null,"abstract":"VSI-operated IM drives at low switching per fundamental frequency in a quarter cycle (Ns) are highly prone to lower order harmonic torque in addition to torque ripple. This can lead to lower efficiency, reduced service life, wear and tear of the components, acoustic noises and vibrations, etc. It can also lead to shaft failure in the long run. Thus, it is the preeminent consideration in prevailing high-speed, motor and power drives. Presently, these problems are minimized by implementing classical PWM techniques (CB-PWM and SHE-PWM). In this present paper, a P-PWM-based approach is proposed for the reduction of the harmonic magnitude in the lower order torque and the torque ripple in VSI-operated IM drives. In this paper, a programmed pulsewidth modulation (P-PWM)-based approach is applied in the context of three switchings per fundamental frequency per quarter cycle (Ns = 3) for reducing the harmonic magnitude (lower order) and ripples in torque that are of the order of the 6th, 12th up to 6(Ns − 1)th. Since the P-PWM approach relies on independent specifications and loading states, it can accommodate different Ns and higher order harmonics. Furthermore, the P-PWM performance is implemented and extensively compared with carrier-based pulsewidth modulation (CB-PWM), and selective harmonic elimination pulsewidth modulation (SHE-PWM) for Ns = 3 and the obtained findings are supported by a 1hp VSI-based IM drive using a TYPHOON-HIL based experimental setup. The P-PWM approach surpasses the classical used PWM techniques, such as CB-PWM and SHE-PWM, both in terms of the magnitude of the harmonic and the ripples in the torque.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"33 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141608696","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 improvement of induction motor drives in low-speed operation using gray wolf optimizer based on IFOC 使用基于 IFOC 的灰狼优化器提高感应电机驱动器在低速运行时的性能

IF 1.4 4区工程技术

Journal of Power Electronics Pub Date : 2024-07-08 DOI: 10.1007/s43236-024-00846-w

Nibras Syarif Ramadhan, Era Purwanto, Bambang Sumantri, Hary Oktavianto, Moch Rafi Damas Abdilla, Abdillah Aziz Muntashir

{"title":"Performance improvement of induction motor drives in low-speed operation using gray wolf optimizer based on IFOC","authors":"Nibras Syarif Ramadhan, Era Purwanto, Bambang Sumantri, Hary Oktavianto, Moch Rafi Damas Abdilla, Abdillah Aziz Muntashir","doi":"10.1007/s43236-024-00846-w","DOIUrl":"https://doi.org/10.1007/s43236-024-00846-w","url":null,"abstract":"Low-speed operation of induction motors (IM) requires special treatment to maintain their performance. The use of the indirect field-oriented control (IFOC) method makes the IM reliable in a variety of conditions, but the performance of IFOC is dependent on the reliability of the dq-axis controller, which is part of IFOC. Therefore, this research offers the implementation of the grey wolf optimizer (GWO) method to optimize the PI controller on the d-axis side. The data from this method is compared to the conventional PI method for evaluation. The results show that the GWO-PI and conventional PI method have the same steady-state value (SSV) and error (SSE). The implementation of the GWO-PI method reduces the integral absolute error (IAE) by up to 0.36% and the current consumption by 3.96–10.62%. As for the rise time and settling time aspects, the implementation of GWO-PI provides improvements of 0.001–0.02 s for rise time and 0.08–0.362 s for settling time. This indicates that the implementation of the GWO-PI method on the d-axis controller of the IFOC method can optimize the performance of IM speed and reduce current consumption in the case study of low-speed operation.","PeriodicalId":50081,"journal":{"name":"Journal of Power Electronics","volume":"369 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141574652","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