2022 25th International Conference on Electrical Machines and Systems (ICEMS)最新文献_第2页

A Nested-Loop Rotor Brushless Doubly-Fed Generator with Improved Stator Single Winding Pole-Changing Design Scheme 一种改进定子单绕组变极方案的嵌套环转子无刷双馈发电机

2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9982811

Longjin Li, L. Jia

引用次数: 0

Design and Fabrication of Dual-Rotor Motors with Axially Extended Stator for Electrified Aircraft Propulsion 电气化飞机推进用轴向扩展定子双转子电机的设计与制造

2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9983333

Naoya Jike, Hiroshi Mitsuda, T. Kojima, M. Hazeyama

引用次数: 0

Discrete-time Adaptive SMO based Sensorless Fixed-Switching-Frequency MPC of Three-Level NPC-fed PMSM Drives 基于离散时间自适应SMO的三电平npc馈入PMSM驱动器的无传感器固定开关频率MPC

2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9983136

L. Ding, Dehong Zhou, Chao Gong, Y. Li

{"title":"Discrete-time Adaptive SMO based Sensorless Fixed-Switching-Frequency MPC of Three-Level NPC-fed PMSM Drives","authors":"L. Ding, Dehong Zhou, Chao Gong, Y. Li","doi":"10.1109/ICEMS56177.2022.9983136","DOIUrl":"https://doi.org/10.1109/ICEMS56177.2022.9983136","url":null,"abstract":"This paper presents a discrete-time sliding-mode observer (SMO) based sensorless model predictive control (MPC) method for three-level neutral-point-clamped (NPC) inverter-fed permanent magnet synchronous motor (PMSM) drives. The fixed-switching-frequency model predictive current control (MPCC) features higher dynamics, lower dv/dt as well as superior harmonic spectra, which is suitable for high-performance drive applications. To achieve superior rotor position estimation accuracy and dynamic with sensorless MPC, a discrete-time domain designed adaptive SMO is proposed to avoid approximation. The optimized voltage references regulated by the MPCC process can be directly used for EMF estimation. Furthermore, the adaptive filter by adopting multiple second-order generalized integrator (SOGI) structures is adopted to filter out the low harmonics in estimated EMF waveforms. Therefore, the inevitable estimation error and delay caused by conventional low pass filter (LPF) can be eliminated. The simulation and experimental results are provided to verify the effectiveness of the proposed method.","PeriodicalId":373972,"journal":{"name":"2022 25th International Conference on Electrical Machines and Systems (ICEMS)","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116195859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Design of AC Excitation Variable Speed Constant Frequency Power Generation System 交流励磁变速恒频发电系统的设计

2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9983031

Zexuan Zuo, Zhandong Xue, Liang Tian

引用次数: 0

SOC estimation of lithium battery based on AUKF algorithm of third-order RC model 基于三阶RC模型AUKF算法的锂电池荷电状态估计

2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9983375

Hao Wang, Changqing Sun, Guangxu Zhou, Yunhai Zhu, Dairong Hu

引用次数: 0

Structural parameter optimization for free dual-piston linear generator based on impedance matching 基于阻抗匹配的自由双活塞直线发电机结构参数优化

2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9983268

Wenjie Xiao, Chi Zhang, Feixue Chen, Tianyou Pei, Xinyao Zhao

{"title":"Structural parameter optimization for free dual-piston linear generator based on impedance matching","authors":"Wenjie Xiao, Chi Zhang, Feixue Chen, Tianyou Pei, Xinyao Zhao","doi":"10.1109/ICEMS56177.2022.9983268","DOIUrl":"https://doi.org/10.1109/ICEMS56177.2022.9983268","url":null,"abstract":"This paper presents optimization method for structure parameters of free dual-piston linear generator (FPLG) that base on impedance matching of the generator. The free piston linear generator with dual-piston is composed of combustion chamber, linear generator, and load circuit, which is a thermo-mechanical-electrical nonlinear system with coupling effects. In order to optimize the output performance, this paper study the output characteristics of linear generators, and determine load impedance according to the equivalent circuit. After that, the equivalent stiffness of the combustion chamber is established, and the relevant structure parameters of combustion chamber are designed by iteration optimization. To evaluate the design method of coupled system, a numeric model is developed to simulate multiple cycles of the system. The Matlab/Simulink model is built with the thermodynamic model, thrust force model and dynamic model. In this investigation, the transient process of the system is analyzed, and the optimal structure parameters of FPLG are obtained. After optimization, the output power of the FPLG system was increased by 60%, and the output efficiency of the linear generator reached 93.27%.","PeriodicalId":373972,"journal":{"name":"2022 25th International Conference on Electrical Machines and Systems (ICEMS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122820124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 the method of direct torque control of permanent magnet synchronous motor switching frequency constant 永磁同步电机开关频率恒定直接转矩控制方法研究

2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9982977

Lanlan Zheng, Mengqiao Li, Jinglin Liu

引用次数: 0

Electromagnetic Loss Analysis for Aircraft Wound-Rotor Synchronous Starter-Generator in Both Starting and Generation Modes 飞机绕线转子同步起动发电机在起动和发电模式下的电磁损耗分析

2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9983033

Pu Yao, Ningfei Jiao, Xu Han, Zijie Li, Weiguo Liu

引用次数: 0

Reduction of Stator Vibration Acceleration Using One-Axis Actively Positioned Single-Drive Bearingless Motor 利用单轴主动定位单驱动无轴承电机降低定子振动加速度

2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9983182

Theeraphong Srichiangsa, H. Sugimoto, Y. Fujii, K. Kiyota, A. Chiba

引用次数: 0

Optimization Simulation Analysis of Leakage Magnetic Field and Loss Characteristics of High Frequency Nanocrystalline Transformer 高频纳米晶变压器漏磁场及损耗特性优化仿真分析

2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9983025

Xue Liu, Lu Zhao, Chengyao Ma, Qiongxuan Ge, Yao-hua Li

{"title":"Optimization Simulation Analysis of Leakage Magnetic Field and Loss Characteristics of High Frequency Nanocrystalline Transformer","authors":"Xue Liu, Lu Zhao, Chengyao Ma, Qiongxuan Ge, Yao-hua Li","doi":"10.1109/ICEMS56177.2022.9983025","DOIUrl":"https://doi.org/10.1109/ICEMS56177.2022.9983025","url":null,"abstract":"Increasing the switching frequency of the converter can reduce the size of the transformer. However, as the switching frequency increases, the losses and temperature of transformer also increase, especially the core loss. Improving the calculation accuracy of core loss models is important for the design and research of high frequency transformers. Nanocrystalline materials have a unique nanoscale grain size and a special microstructure that gives them a high saturation magnetic induction strength and permeability, resulting in smaller size and weight at high frequencies, and have gained widespread popularity in recent years. However, compared to other soft magnetic materials, nanocrystalline strips have high permeability and leakage inductance causes increased eddy current losses on the thin walls on both sides, resulting in high localized temperatures. The finite element model of nanocrystalline high frequency transformer is established by the Ansys/Maxwell software in this paper and the effect of temperature is considered on the core with the leakage magnetic, using Icepak to perform a bidirectional coupling calculation of electromagnetic and temperature. With two different primary and secondary winding arrangements, this model calculated the core losses and temperature distribution. It verified that as the leakage inductance increases, the core loss grows and the temperature rise accelerates.","PeriodicalId":373972,"journal":{"name":"2022 25th International Conference on Electrical Machines and Systems (ICEMS)","volume":"158 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122092514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2