Iet Electric Power Applications最新文献_第10页

Two-stage deadbeat-based predictive torque control strategy for modular multilevel converter-fed three-phase induction motors 基于两级死区的模块化多电平转换器供电三相感应电机预测转矩控制策略

IF 1.7 4区工程技术

Iet Electric Power Applications Pub Date : 2023-09-12 DOI: 10.1049/elp2.12363

Mahyar Khosravi, Davood Arab Khaburi, Mohsen Alikhani, Meysam Yousefzade

{"title":"Two-stage deadbeat-based predictive torque control strategy for modular multilevel converter-fed three-phase induction motors","authors":"Mahyar Khosravi, Davood Arab Khaburi, Mohsen Alikhani, Meysam Yousefzade","doi":"10.1049/elp2.12363","DOIUrl":"10.1049/elp2.12363","url":null,"abstract":"Recently, Modular Multilevel Converters (MMC) are considered to be extensively used in medium-voltage AC drives A two-stage deadbeat-based strategy is developed by the authors to make the implementation of Predictive Torque Control (PTC) technique for an induction motor that is fed by a three-phase MMC possible . Despite various benefits of PTC strategy, it has not been widely employed for multilevel topologies due to the huge number of switching states of these converters, and the complex internal dynamics of topologies such as MMC. The proposed control scheme results in significant reduction of the computational burden, using an initial reference voltage that is determined at the first stage of the strategy by the deadbeat technique. Next, the predictive evaluation process is conducted at the second stage to simultaneously control the stator flux, electromagnetic torque and circulating current. The number of admissible vectors that should be evaluated in the cost function is effectively limited by only considering some adjacent vectors of the reference voltage in the first stage. Moreover, the circulating current control capability, which is necessary for effective operation of MMC, is also considered in the developed scheme. Finally, the satisfactory performance of the proposed strategy is validated through various experimental tests.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.12363","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135885453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lumped parameter thermal model for segmental translator linear switched reluctance motor 分段式开关磁阻电机的集总参数热模型

IF 1.7 4区工程技术

Iet Electric Power Applications Pub Date : 2023-08-27 DOI: 10.1049/elp2.12362

Milad Golzarzadeh, Hashem Oraee, Babak Ganji

引用次数: 0

An efficient integrated model for diesel-engine three stage brushless synchronous generator 柴油机三级无刷同步发电机的高效集成模型

IF 1.7 4区工程技术

Iet Electric Power Applications Pub Date : 2023-08-24 DOI: 10.1049/elp2.12361

Alireza Ahmadi, Mostafa Shahnazari, Mohammad Ebrahim Vaziri Sarashk

引用次数: 0

A maximum efficiency point tracking control method for ultrasonic motors with temperature compensation 一种带温度补偿的超声电机最大效率点跟踪控制方法

IF 1.7 4区工程技术

Iet Electric Power Applications Pub Date : 2023-08-22 DOI: 10.1049/elp2.12356

Lei Zhao, Chunchen Cai, Xuefei Mao, Dengyun Wu, Jiyang Zhang, Zhuoming Yu, Ying Feng

引用次数: 0

Investigation of winding cooling enhancement and thermal modelling of large‐power high‐torque‐density direct‐drive PMSM 大功率高转矩密度直驱永磁同步电机绕组冷却增强和热建模研究

IF 1.7 4区工程技术

Iet Electric Power Applications Pub Date : 2023-08-17 DOI: 10.1049/elp2.12351

Yongda Song, Yue Zhang, Shi Jin, Zhenyao Xu, Feng Zhang

{"title":"Investigation of winding cooling enhancement and thermal modelling of large‐power high‐torque‐density direct‐drive PMSM","authors":"Yongda Song, Yue Zhang, Shi Jin, Zhenyao Xu, Feng Zhang","doi":"10.1049/elp2.12351","DOIUrl":"https://doi.org/10.1049/elp2.12351","url":null,"abstract":"Large‐power high‐torque‐density direct‐drive permanent magnet synchronous motors (LHDPMSM) are more and more frequently used to drive ball mills, belt conveyors, scraper conveyors, etc. Aiming at the characteristics of large copper loss and high winding temperature rise of the LHDPMSM, an effective winding cooling enhancement technology based on winding overall potting (WOP) is presented. The manufacturing process and cooling principle of WOP is described in detail and compared with the traditional vacuum pressure impregnation (VPI). In order to solve the problem of complex modelling process and long calculation time of LHDPMSM thermal field caused by large volume and asymmetric fluid cooling structure, the lumped parameter thermal network (LPTN) considering both fluid cooling and winding potting is proposed. Then, the cooling capacity of WOP and VPI are compared by LPTN, and the influence of some major cooling system parameters on LHDPMSM temperature rise are also researched. Finally, in order to verify the correctness of the theoretical calculation results, two 450 kW LHDPMSM prototypes adopt WOP and VPI are manufactured, tested and compared. The theoretical and experimental results are highly consistent, which proves the effectiveness of WOP in winding cooling enhancement of LHDPMSM.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49359663","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: 1

Study on the suppression effect of variable hydrogen parameters on the temperature rise of the turbo-generator rotor under deep peak regulation 深调峰条件下变氢参数对汽轮发电机转子温升的抑制作用研究

IF 1.7 4区工程技术

Iet Electric Power Applications Pub Date : 2023-08-16 DOI: 10.1049/elp2.12360

Yucai Wu, Yingjie Guo

{"title":"Study on the suppression effect of variable hydrogen parameters on the temperature rise of the turbo-generator rotor under deep peak regulation","authors":"Yucai Wu, Yingjie Guo","doi":"10.1049/elp2.12360","DOIUrl":"10.1049/elp2.12360","url":null,"abstract":"In recent years, the extensive participation of turbine generator in deep peak regulation has caused significant damage to the rotor windings, which is rooted in the frequent and significant changes in the electrical load of the rotor, accompanied by thermal expansion and contraction, causing harm to the rotor insulation and stress fatigue of the metal conductor. Hydrogen, as the cooling medium for the rotor windings of turbine generators, has a direct impact on the windings temperature through its parameters. Starting from suppressing the harm of deep peak regulation on the rotor windings, the inhibitory effect of hydrogen parameter changes on the temperature of the gap-pickup diagonal-flow rotor is studied. A calculation model for the rotor temperature field of the turbo-generator with gap-pickup diagonal-flow ventilation is established. The finite volume method is used to iteratively calculate the control equations in the fluid-thermal-solid coupling heat transfer problem, and the temperature field distribution of various components of the rotor under different excitation loads is obtained. On this basis, the effects of individual adjustment of hydrogen temperature and pressure, as well as the combined adjustment, on the temperature of the rotor windings are studied. Finally, a variable hydrogen parameter adjustment strategy is proposed for the operation of turbo-generators under deep peak regulation conditions. To a certain extent, the winding temperature fluctuation can be suppressed, which provides a potential solution for the thermal stable operation of the rotor.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.12360","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46572807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","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 ampere-second-vector pulse width modulation technique and fault-tolerant control for CSI11 fed five-phase permanent magnet synchronous motor with multiple harmonic electromotive forces 多谐电动势CSI11馈入五相永磁同步电动机的安培-秒矢量脉宽调制技术及容错控制

IF 1.7 4区工程技术

Iet Electric Power Applications Pub Date : 2023-08-16 DOI: 10.1049/elp2.12357

Chao Chen, Zhen Chen, Xiaoyong Sun, Congzhe Gao, Xiangdong Liu

{"title":"An ampere-second-vector pulse width modulation technique and fault-tolerant control for CSI11 fed five-phase permanent magnet synchronous motor with multiple harmonic electromotive forces","authors":"Chao Chen, Zhen Chen, Xiaoyong Sun, Congzhe Gao, Xiangdong Liu","doi":"10.1049/elp2.12357","DOIUrl":"10.1049/elp2.12357","url":null,"abstract":"When dealing with safety-critical applications that involve multiphase permanent magnet synchronous motors (PMSMs), the current source inverter (CSI) is a superior choice compared with the voltage source inverter. The conventional technique of pulse width modulation (PWM) presents a challenge for CSI, particularly during faults. The fault-tolerant control of multiphase PMSMs fed by CSIs has not been well investigated, particularly in situations involving double-phase open-circuit faults. Furthermore, fault-tolerant control becomes more complex when the multiphase PMSM includes harmonic back electromotive forces (EMFs). To deal with these issues, an ampere-second (AS) vector PWM technique is developed for a five-phase PMSM powered by CSI11. The modulation ratio of the proposed PWM is identical to that of space vector PWM. The proposed method, however, is easier to implement. A fault-tolerant control method using AS-vector is proposed for single-phase, adjacent double-phase, and non-adjacent double-phase open-circuit faults. Additionally, a method is developed to suppress the torque ripple that results from harmonic back-EMFs during fault conditions. Compared without the torque ripple suppression method, during the speed rising, the proposed method can reduce torque ripple to 16.7%, 54.5%, and 37.5%, respectively. The experiments have confirmed the effectiveness of the proposed PWM technique and fault-tolerant control method.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.12357","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44275245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","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 cogging torque measurement method for multi slot/pole permanent magnet motor 一种新的多槽/多极永磁电机齿槽转矩测量方法

IF 1.7 4区工程技术

Iet Electric Power Applications Pub Date : 2023-08-15 DOI: 10.1049/elp2.12359

Wanwan Zhu, Yukai Yang, Hongzhou Song, Yinan Liu, Zaiping Zheng, Yiguang Chen

引用次数: 0

Torque ripple reduction of switched reluctance motor using direct instantaneous torque control and adaptive turn-on technique for electric vehicle applications 利用直接瞬时转矩控制和自适应导通技术减少开关磁阻电机的转矩脉动

IF 1.7 4区工程技术

Iet Electric Power Applications Pub Date : 2023-08-15 DOI: 10.1049/elp2.12358

Laith Al Quraan, Laszlo Szamel

{"title":"Torque ripple reduction of switched reluctance motor using direct instantaneous torque control and adaptive turn-on technique for electric vehicle applications","authors":"Laith Al Quraan, Laszlo Szamel","doi":"10.1049/elp2.12358","DOIUrl":"10.1049/elp2.12358","url":null,"abstract":"Direct Instantaneous Torque Control (DITC) with an adaptive turn-on angle technique is presented in this paper to improve the torque ripple of the Switched Reluctance Motor (SRM) for Electric Vehicle applications. Torque ripple suppression is achieved by employing two operating modes during the commutation interval. First, both the outgoing and incoming phase states are modified to track the required torque during the incoming phase's minimum inductance area. As soon as the incoming phase leaves its minimum inductance zone, the outgoing phase is demagnetised, and only the incoming phase state is modified for torque tracking. In addition, a closed-loop regulator is used to dynamically control the turn-on angle that drives the incoming current to reach its first peak at the instant of switching between the two operation modes when the rotor and stator poles initiate overlap, thus increasing the motor's efficiency. Simulation results showed that the proposed control method has superior advantages over the traditional DITC and Average Torque Controller. Furthermore, the simulation results were verified experimentally using a four-phase 4kW, 8/6 SRM prototype.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.12358","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47592953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Mechanical fault diagnosis of on‐load tap‐changer based on improved variational mode decomposition and relative density‐based outlier score 基于改进变分模态分解和相对密度异常值的有载分接开关机械故障诊断

IF 1.7 4区工程技术

Iet Electric Power Applications Pub Date : 2023-08-13 DOI: 10.1049/elp2.12354

Hongrui Gu

引用次数: 0