Iet Electric Power Applications最新文献_第10页

An adaptive gain phase-locked loop for position sensorless control of permanent magnet synchronous motor drives 用于永磁同步电机驱动器无位置传感器控制的自适应增益锁相环

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2024-07-17 DOI: 10.1049/elp2.12474

Pengcheng Han, Ying Lou, Chao Wu, Li Zeng, Huimin Wang

{"title":"An adaptive gain phase-locked loop for position sensorless control of permanent magnet synchronous motor drives","authors":"Pengcheng Han, Ying Lou, Chao Wu, Li Zeng, Huimin Wang","doi":"10.1049/elp2.12474","DOIUrl":"10.1049/elp2.12474","url":null,"abstract":"In view of the cost and reliability issues caused by mechanical position sensors, position sensorless control (PSC) of permanent magnet synchronous motors (PMSMs) has received widespread attention. A series of rotor position estimation (RPE) schemes have been developed, in which the phase-locked loop (PLL) plays an important role. However, the conventional phase-locked loops face two thorny issues, one is the degradation of RPE performance under motor acceleration and deceleration conditions, and the other is high noise sensitivity. To this end, an adaptive gain PLL (AG-PLL) is proposed for PSC of PMSM drives. The gains of the loop filter in the proposed AG-PLL are adaptively adjusted with the estimation error in order to find a compromise between the estimation performance under motor acceleration and deceleration conditions and the noise sensitivity. Moreover, the proposed scheme avoids increasing the order of the PLL, so its dynamic performance is also guaranteed. The proposed scheme is tested based on the hardware-in-the-loop platform.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":"18 10","pages":"1254-1265"},"PeriodicalIF":1.5,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.12474","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141828666","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

Modelling and optimisation of the surface-mounted permanent magnet machine with multi-level array magnets 带多级阵列磁体的表面安装式永磁机械的建模和优化

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2024-07-16 DOI: 10.1049/elp2.12478

Longxuan Li, Zhaoliang Chen, Wenliang Zhao, Chengwu Diao, Byung-il Kwon

{"title":"Modelling and optimisation of the surface-mounted permanent magnet machine with multi-level array magnets","authors":"Longxuan Li, Zhaoliang Chen, Wenliang Zhao, Chengwu Diao, Byung-il Kwon","doi":"10.1049/elp2.12478","DOIUrl":"10.1049/elp2.12478","url":null,"abstract":"An analytical and optimisation method is presented to improve the air-gap magnetic field of the surface-mounted permanent magnet machine with multi-level array magnets, which can reduce air-gap magnetic field harmonics and torque ripple. Different from the conventional analytical method (AM) around the entire single-magnet pole, the modelling method of multi-level equal-thickness ferrite magnets with different remanences for improving the air-gap flux density is investigated. Considering the influence of air-gap relative permeability by stator slots and multi-level magnet remanences on the air-gap flux density, the proposed AM for improving air-gap flux density is derived by analysing the slotless air-gap flux density and slotted air-gap relative permeability. The cogging torque is predicted with energy method by analysing the tangential magnetic field distribution at stator slots. Then, the back electromotive force is predicted by analysing the winding distribution and radial air-gap flux density. Based on the proposed AM, the simulated annealing particle swarm optimisation algorithm is used by optimising the widths and thicknesses of the multi-level array magnets to further reduce torque ripple and increase output torque. Finally, the accuracy of the proposed AM is verified by comparing with the finite element method.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":"18 10","pages":"1293-1304"},"PeriodicalIF":1.5,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.12478","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141832136","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

Transformer partial discharge fault diagnosis based on improved adaptive local iterative filtering-bidirectional long short-term memory 基于改进型自适应局部迭代滤波-双向长短期记忆的变压器局部放电故障诊断

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2024-07-15 DOI: 10.1049/elp2.12471

Haikun Shang, Zixuan Zhao, Ranzhe Zhang, Zhiming Wang, Jiawen Li

{"title":"Transformer partial discharge fault diagnosis based on improved adaptive local iterative filtering-bidirectional long short-term memory","authors":"Haikun Shang, Zixuan Zhao, Ranzhe Zhang, Zhiming Wang, Jiawen Li","doi":"10.1049/elp2.12471","DOIUrl":"10.1049/elp2.12471","url":null,"abstract":"Insulation deterioration, which is mainly caused by partial discharge (PD) occurring inside power transformers, is one of the prime reasons to cause transformer faults. Therefore, an effective diagnosis of PD is crucial to ensure the safe and stable operation of transformers. To extract more effective features that characterise transformers PD signals and enhance the recognition accuracy, a novel transformer PD fault diagnosis model based on improved adaptive local iterative filtering (ALIF) and bidirectional long short-term memory (BILSTM) neural network is proposed. Addressing the issue of predetermined decomposition levels and accuracy in ALIF decomposition, the golden jackal optimisation (GJO) algorithm is introduced to optimise the parameters. The proposed fault diagnostic model extracts dominant PD features employing the improved ALIF and Refined Composite Multi-Scale Dispersion Entropy and improves the diagnostic accuracy with the optimised BILSTM by introducing GJO. Experimental data evaluates the performance of support vector machine, long short-term memory and BILSTM. The results verify the effectiveness and superiority of the proposed model.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":"18 10","pages":"1214-1232"},"PeriodicalIF":1.5,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.12471","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141644467","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

Reduction of losses in dual-permanent-magnet-excited Vernier machine by segmented stator for electric aircraft 通过分段定子降低电动飞机双永磁励磁维尔纳机的损耗

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2024-07-15 DOI: 10.1049/elp2.12476

Jinghua Ji, Chen Jia, Wenxiang Zhao, Zhijian Ling, Yu Zeng, Zongwang Li

引用次数: 0

Analytical modelling of the linear transverse flux permanent magnet motor using magnetic equivalent circuit method 使用磁性等效电路法对线性横向磁通永磁电机进行分析建模

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2024-07-15 DOI: 10.1049/elp2.12475

Morteza Akhlaqi, Babak Ganji, Payam Vahedi

引用次数: 0

Comparison of direct-drive Vernier wind generators for potential use at ≥10 MW power level 直接驱动 Vernier 风力发电机在 ≥10 兆瓦功率级别的潜在用途比较

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2024-07-12 DOI: 10.1049/elp2.12477

Dileep Kumar Kana Padinharu, Guang-Jin Li, Zi-Qiang Zhu, Peng Wang, Richard Clark, Ziad Azar

{"title":"Comparison of direct-drive Vernier wind generators for potential use at ≥10 MW power level","authors":"Dileep Kumar Kana Padinharu, Guang-Jin Li, Zi-Qiang Zhu, Peng Wang, Richard Clark, Ziad Azar","doi":"10.1049/elp2.12477","DOIUrl":"10.1049/elp2.12477","url":null,"abstract":"This paper investigates the benefits and challenges of the multi-MW direct-drive offshore wind Vernier generators. It is worth noting that the comparison of generator topologies presented in ref. [1] was for the same power level and therefore a reduced machine volume for the surface-mounted permanent magnet Vernier (SPM-V) generators. This would mainly impact the capital expenditure (CAPEX) cost between the different investigated machines. Whereas in this paper, the performance is compared for the same machine volume that allows the Vernier generators to produce a much higher energy yield than a conventional SPM generator. As the extra energy yield would be beneficial over the lifetime of the turbine, this will have a bigger impact than the CAPEX cost savings with a reduced machine volume. In addition, a novel Vernier machine with magnets on both the stator and rotor has been proposed to further improve the energy yield. In addition to the basic electromagnetic performance, the levelised cost of energy (LCOE) of the three generator topologies, that is, the conventional SPM, SPM-V and the proposed Vernier machines, has been compared. The direct-drive powertrain systems with SPM-V and the proposed Vernier generators can achieve LCOE of 12.3% and 24% lower than that of the conventional SPM generators, indicating their huge potential as an alternative to reduce the overall cost of energy.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":"18 10","pages":"1279-1292"},"PeriodicalIF":1.5,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.12477","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141653888","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 compensation method for PMSM sensorless control with parameter identification considering SMO observation error 考虑 SMO 观测误差的参数识别 PMSM 无传感器控制补偿方法

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2024-07-10 DOI: 10.1049/elp2.12461

Ruizhi Guan, Jinglin Liu, Mengqi Li, Minglang Xiao, Xinran Shi

{"title":"A compensation method for PMSM sensorless control with parameter identification considering SMO observation error","authors":"Ruizhi Guan, Jinglin Liu, Mengqi Li, Minglang Xiao, Xinran Shi","doi":"10.1049/elp2.12461","DOIUrl":"10.1049/elp2.12461","url":null,"abstract":"Sensorless control of permanent magnet synchronous motor (PMSM) can increase the reliability of electric actuators of more electrical aircraft. Numerical online parameter estimation method will enhance the performance for sensorless control methods based on sliding mode observer (SMO). However, numerical online parameter identification methods typically assume zero rotor position estimation error to ensure full rank of the identification equation set. This assumption actually leads to errors in parameter identification, resulting in steady-state errors in rotor position estimation. This paper focuses on a compensation method for PMSM online parameter identification that takes into account rotor position estimation error. This method is used for sensorless control based on SMO, using model reference adaptive systems for online parameter identification, and no additional parameter adjustment required. Validation is conducted on a PMSM experimental platform with maximum load of 15kW. The experimental results of 1000 r/min steady state operation proved the effectiveness of the method, and the dynamic experiments with 5 and 15kW loads proved that the method has no significant adverse effect on the system dynamics.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":"18 12","pages":"1730-1739"},"PeriodicalIF":1.5,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.12461","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141659112","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 equivalent and simplified approach for acoustic noise prediction in a PM synchronous motor based on the semi-analytical-FEM model 基于半解析有限元模型的永磁同步电机声学噪声预测等效简化方法

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2024-07-09 DOI: 10.1049/elp2.12470

Armin Saki, Arash Kiyoumarsi, Alireza Ariaei

{"title":"An equivalent and simplified approach for acoustic noise prediction in a PM synchronous motor based on the semi-analytical-FEM model","authors":"Armin Saki, Arash Kiyoumarsi, Alireza Ariaei","doi":"10.1049/elp2.12470","DOIUrl":"10.1049/elp2.12470","url":null,"abstract":"The vibration and acoustic noise of a permanent-magnet synchronous motor are analysed and evaluated. Acoustic noise sound levels, their prominent frequencies, and the noisiest motor speed range are predicted. According to many resources, the radial vibration of the stator system due to the magnetic attraction between rotor permanent magnets and stator iron teeth is the main reason for the acoustic noise propagation of the PMSMs. The dominant orders of the spatial circumferential harmonics of the radial magnetic forces (RMFs) have been investigated and compared. The complete and complicated mechanical components, materials, and harmonics of the magnetic forces of the motor and their interaction are simplified and equalised to a vibration model, which consists of the interaction between the stator system and the dominant harmonic orders of the RMFs. Based on this approach, the simplest and most adequate semi-analytical-FEM model for noise prediction in PMSMs is proposed. This model, in addition to simplification, clarifies the role of the main mechanical and electromagnetic origins of noise generation. The acoustic noise prediction, using the proposed method has been compared with the experimental results. There is a proper agreement between the analytical, the FEM, and measurement results.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":"18 10","pages":"1200-1213"},"PeriodicalIF":1.5,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.12470","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141663096","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

Evaluating the insulation condition of oil-impregnated paper bushings based on the time constant database 基于时间常数数据库评估油浸纸衬套的绝缘状况

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2024-07-07 DOI: 10.1049/elp2.12472

Hossein Taghizade Ansari, Abolfazl Vahedi, Nami Mahmoudi

{"title":"Evaluating the insulation condition of oil-impregnated paper bushings based on the time constant database","authors":"Hossein Taghizade Ansari, Abolfazl Vahedi, Nami Mahmoudi","doi":"10.1049/elp2.12472","DOIUrl":"10.1049/elp2.12472","url":null,"abstract":"Assessing the insulation condition of oil-impregnated paper (OIP) bushings is necessary to guarantee the safe operation of power transformers. Moisture is the main threat to the insulation of OIP bushings. Therefore, accurately estimating their moisture value is crucial to keep power systems running smoothly. However, it has been suggested that the ageing status of OIP bushings should be considered while assessing the moisture. Dielectric frequency-domain spectroscopy (FDS) has been extensively employed for assessing insulation condition of OIP insulations due to its benefits. A new approach was proposed to assess the insulation condition of OIP bushings using FDS results. Various OIP samples with various moisture levels and degrees of polymerisation (DP) were selected. The extended Debye model (EDM) parameters related to each sample were calculated using their tanδ − f curve. A time constant database (TCD) was created using the obtained time constants of EDM, which includes the dominant time constant and time constant related to the R0 – C0 branch, and their corresponding insulation condition. Then, a method was introduced based on the created TCD to estimate the insulation condition of OIP bushings. The results showed that the average relative error of moisture and DP estimation is 8.33% and 6.32%, respectively.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":"18 10","pages":"1233-1243"},"PeriodicalIF":1.5,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.12472","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141670983","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

Maximum torque per ampere control of permanent magnet/reluctance hybrid rotor dual stator synchronous motor 永磁/磁阻混合转子双定子同步电机的每安培最大扭矩控制

IF 1.5 4区工程技术

Iet Electric Power Applications Pub Date : 2024-07-04 DOI: 10.1049/elp2.12453

Shi Jin, Wuhen Jin, Hao Wang, Siyang Yu, Zhaoyu Zhang

{"title":"Maximum torque per ampere control of permanent magnet/reluctance hybrid rotor dual stator synchronous motor","authors":"Shi Jin, Wuhen Jin, Hao Wang, Siyang Yu, Zhaoyu Zhang","doi":"10.1049/elp2.12453","DOIUrl":"10.1049/elp2.12453","url":null,"abstract":"Compared with a traditional low-speed high-torque permanent magnet synchronous motor (PMSM), a permanent magnet (PM)/reluctance hybrid rotor dual-stator synchronous motor (PM/RHRDSSM) has the advantages of high torque density and high space utilization. This type of motor is composed of a \"back-to-back\" PM + reluctance hybrid rotor and an inner and outer double stator. The number of poles of the inner and outer unit motors is the same, and the inner and outer stator windings are connected in series, driven by a single inverter. Due to the special mechanical structure and electromagnetic relationship of PM/RHRDSSM, traditional PMSM and synchronous reluctance motor maximum torque per ampere (MTPA) control strategies are no longer applicable. In response to this issue, the authors establishe a PM/RHRDSSM mathematical model of stator winding series structure and propose a MTPA control strategy suitable for this new type of motor. This strategy is aimed at the special mathematical model of PM/RHRDSSM and derives the analytical expression of MTPA trajectory, which minimises the required stator current amplitude of PM/RHRDSSM at various load torques, thereby minimising the motor copper loss. Finally, the effectiveness and practicality of the proposed control strategy were verified through simulation and experiments.","PeriodicalId":13352,"journal":{"name":"Iet Electric Power Applications","volume":"18 9","pages":"1021-1032"},"PeriodicalIF":1.5,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.12453","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141680253","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