Iet Electric Power Applications最新文献_第6页

Speed-Sensorless Model-Free Predictive Torque Control for Induction Motor Drive 感应电机驱动的无速度传感器无模型预测转矩控制

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2026-02-20 DOI: 10.1049/elp2.70146

Md. Belal Hossen, Md. Habibullah

{"title":"Speed-Sensorless Model-Free Predictive Torque Control for Induction Motor Drive","authors":"Md. Belal Hossen, Md. Habibullah","doi":"10.1049/elp2.70146","DOIUrl":"https://doi.org/10.1049/elp2.70146","url":null,"abstract":"A speed sensor in a motor drive system decreases the reliability and increases the cost and hardware complexity of the system. In this paper, a speed-sensorless model-free predictive torque control (MF-PTC) scheme has been proposed for an induction motor (IM) drive. An extended Kalman filter (EKF) is employed to estimate the motor speed and thus requirements of a speed sensor and pulse width modulation signals are avoided. The rotor flux is also estimated using the EKF based on the current model of the IM. An ultra-local model is employed instead of the mathematical model of the IM for predicting the current and flux in the prediction step of the proposed MF-PTC. The unknown state of the ultra-local model is estimated using a linear extended state observer. Simulation and experimental results confirm that the proposed controller is robust against motor parameter variations. The speed estimator can estimate the motor speed accurately from the maximum speed down to a minimum of 1 Hz. The controller also demonstrates good performance in terms of torque response, stator flux response and stator current total harmonic distortion under various operating conditions.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":"20 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2026-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.70146","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147320836","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

Study of the Overvoltage and Its Distribution Characteristics in an Oil-Immersed Iron-Core Reactor Disconnected by an SF6 Circuit Breaker SF6断路器断开油浸铁芯电抗器过电压及其分布特性研究

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2026-02-20 DOI: 10.1049/elp2.70153

Hongyan Nie, Peitian He, Hongxin Wang, Ziwei Gao, Jian Zhang

{"title":"Study of the Overvoltage and Its Distribution Characteristics in an Oil-Immersed Iron-Core Reactor Disconnected by an SF6 Circuit Breaker","authors":"Hongyan Nie, Peitian He, Hongxin Wang, Ziwei Gao, Jian Zhang","doi":"10.1049/elp2.70153","DOIUrl":"https://doi.org/10.1049/elp2.70153","url":null,"abstract":"This paper primarily investigates the patterns of overvoltage changes during an interruption of oil-immersed iron-core reactors by circuit breakers and their distribution along the axial winding of the reactor, which optimises the winding structure. A test platform was established to measure the frequency response curves of the reactor core. Based on the operating frequency parameters of a specific model of a 500 kV oil-immersed iron-core reactor, the variation of the reactor parameters with frequency was studied and a simulation model was constructed. A simulation model of the SF6 circuit breaker was developed using the Fortran language and a three-phase distributed parameter simulation circuit was constructed for the interruption of oil-immersed iron-core reactors by the SF6 circuit breaker. The obtained amplitudes and types of overvoltages from the simulations were analysed to determine the patterns of overvoltage variation. Overvoltages of higher amplitude from various types were selected, their distribution on the axial winding of the reactor was analysed and the winding structure of the reactor was optimised to reduce the maximum distribution of interruption overvoltages. The results show that the overvoltages generated by the interruption of the oil-immersed iron-core reactor by the SF6 circuit breaker are related to the chopping current and operation time lag of the breaker. The largest voltage drop occurs at the “internal shield-continuous transition” along the axial winding of the reactor and adding a small amount of shielding wire at this position can effectively reduce the maximum distribution of overvoltages.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":"20 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2026-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.70153","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147315523","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

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2026-02-20

引用次数: 0

Research on Peak-to-Average Power Ratio Control Method for Switched Reluctance Pulse Generator 开关磁阻脉冲发生器峰均功率比控制方法研究

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2026-01-30 DOI: 10.1049/elp2.70144

Yanting Liu, Fulin Zhou, Shanshan Yang, Minjun Guan, Chuang Liu

{"title":"Research on Peak-to-Average Power Ratio Control Method for Switched Reluctance Pulse Generator","authors":"Yanting Liu, Fulin Zhou, Shanshan Yang, Minjun Guan, Chuang Liu","doi":"10.1049/elp2.70144","DOIUrl":"https://doi.org/10.1049/elp2.70144","url":null,"abstract":"Switched reluctance pulse generator (SRPG) demonstrates significant potential for development in pulsed power applications owing to its repetitive frequency pulsed output characteristics. Addressing the different requirements for peak output power of pulse loads and constant loads, the peak-to-average power ratio (PAPR) is taken as the generation performance optimisation parameter. By investigating the power characteristics of the SRPG, the influence of control parameters on the PAPR is studied. A PAPR control method is further proposed. It optimises the turn-off angle to regulate the PAPR and then adjusts the turn-on angle to meet the average output power requirement. The results indicate that under fixed operating conditions, the PAPR is almost unaffected by the turn-on angle but increases with the increase of the turn-off angle. When outputting the same average power, the SRPG can significantly adjust the peak output power through the PAPR control method. It can adapt to the demands of different types of loads flexibly. Experimental results further validate the correctness of the power characteristics and the effectiveness of the PAPR control method in optimising generation performance.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":"20 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.70144","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146199447","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

Harmonic Transient Modelling of Three-Phase Induction Motors Considering Non-Sinusoidal Power Supply 考虑非正弦供电的三相感应电动机谐波暂态建模

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2026-01-29 DOI: 10.1049/elp2.70149

Jinping Kang, Zhiqiang Wu, Jian He, Guangliang Yang, Dongsheng Li, Jingzhe Tu, Xiangtao Xiao, Tong Liu, Haisen Zhao

{"title":"Harmonic Transient Modelling of Three-Phase Induction Motors Considering Non-Sinusoidal Power Supply","authors":"Jinping Kang, Zhiqiang Wu, Jian He, Guangliang Yang, Dongsheng Li, Jingzhe Tu, Xiangtao Xiao, Tong Liu, Haisen Zhao","doi":"10.1049/elp2.70149","DOIUrl":"https://doi.org/10.1049/elp2.70149","url":null,"abstract":"The increasing penetration of renewable energy sources into power grids introduces significant harmonic components in load-side power supplies. Under nonsinusoidal supply conditions, the applications of conventional reduced-order models of three-phase induction motor (IM) lead to substantial inaccuracy in transient simulations as they are unable to account for these harmonics, adequately. To resolve this issue, this study investigates systematically the applicability of the third- and first-order conventional models for transient simulations considering nonsinusoidal supply conditions. Subsequently, the improved fifth-, third- and first-order equation as well as the corresponding harmonic equivalent circuits of IM are derived considering the nonsinusoidal supply. For an 11, 000 kW IM and a 5.5 kW IM, this study compares the performances of the proposed and conventional reduced-order models in simulating the typical transients including the start-up, suddenly loading, locked-rotor and normal steady-state operations. The results demonstrate that the third- and first-order conventional models are suitable only for calculating speed dynamics while they produce significant errors in the predictions of electromagnetic dynamics. In contrast, the proposed third- and first-order models calculate accurately the electromechanical transients of IMs with nonsinusoidal supply, and the calculated results show excellent agreement with those by the fifth-order reference model. The proposed harmonic models of the 5.5 kW IM and the 11, 000 kW IM are validated with the test results and the finite element simulation results, respectively.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":"20 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2026-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.70149","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146199470","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

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2026-01-29

引用次数: 0

Magnetic Field Analysis of Multi-Segment Modulated Pole Motors Based on the Air Gap Domain Multi-Harmonic Method 基于气隙域多谐法的多段调制极电机磁场分析

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2026-01-28 DOI: 10.1049/elp2.70148

Kun Wang, Yong Han

{"title":"Magnetic Field Analysis of Multi-Segment Modulated Pole Motors Based on the Air Gap Domain Multi-Harmonic Method","authors":"Kun Wang, Yong Han","doi":"10.1049/elp2.70148","DOIUrl":"https://doi.org/10.1049/elp2.70148","url":null,"abstract":"This article improves the traditional subdomain model based on the theory of air gap magnetic field modulation and proposes an analytical method for the magnetic field of air gap domain multi-harmonics. The improved model builds on the subdomain model by adding more harmonic coefficients to the air gap domain to comprehensively represent the harmonic characteristics and spatial frequency of the motor's magnetic field. The improved model effectively solves the problem of inaccurate magnetic field results when analysing multi-pole pairs motors using the traditional subdomain model and reduces the matrix dimension during analytical calculations. The computational object in this paper has a large number of pole pairs and multi-segment modulated poles. The analytical results are compared with finite element results and prototype experiments to validate the accuracy of the air gap domain multi-harmonic method. The improved model reduces matrix dimensions and shortens analytical computation time. It may also decrease computational load during iterations, thereby accelerating the iterative process and providing insights for nonlinear magnetic field analysis.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":"20 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2026-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.70148","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146206038","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

Segmented PMLSM End-Force Suppression via Refined Tooth-Boot Mesh and Auxiliary-Pole Co-Design 基于精细齿-靴网格和辅助杆协同设计的分段永磁同步电机端力抑制

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2026-01-28 DOI: 10.1049/elp2.70147

Huimin Han, Liang Guo, Chaojun Han, Wenqi Lu

引用次数: 0

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2026-01-16

引用次数: 0

A Study on the Down-Scaling of Transient Drive Cycles for Experimental Analyses With Laboratory Based Small Motors 小电机实验分析用瞬态驱动周期降尺度研究

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2026-01-16 DOI: 10.1049/elp2.70139

Pawan Kumar Dhakal, Kourosh Heidarikani, Roland Seebacher, Annette Muetze

{"title":"A Study on the Down-Scaling of Transient Drive Cycles for Experimental Analyses With Laboratory Based Small Motors","authors":"Pawan Kumar Dhakal, Kourosh Heidarikani, Roland Seebacher, Annette Muetze","doi":"10.1049/elp2.70139","DOIUrl":"https://doi.org/10.1049/elp2.70139","url":null,"abstract":"Standardised drive cycles are commonly used to assess passenger and other vehicles' performances. However, real vehicle drive cycles cannot be tested in laboratories with smaller machines because of torque and speed range limitations. Thus, for experimental analysis in the laboratory, these drive cycles need to be scaled down. This paper presents a method of down-scaling such transient cycles, maintaining information on the cycles' transient characteristics, to enable experimental investigations of real vehicle driving scenarios in small laboratory-scale settings. It examines the method's suitability to analyse the machine performances in terms of electrical energy conversion and thermal aspects, and thus subsequently the influence of different control and operation approaches. Three test case speed-over-time drive cycles are chosen and analysed for the cases of two different electric vehicles (EVs). The down-scaling method is studied with respect to two different laboratory-based test case motors: a permanent magnet synchronous motor (PMSM) and an induction motor (IM). Thus, a total of 12 example case scenarios are considered.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":"20 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2026-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.70139","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146027477","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