CES Transactions on Electrical Machines and Systems最新文献

Review of Field Weakening Control Strategies of Permanent Magnet Synchronous Motors 永磁同步电机磁场削弱控制策略综述

CES Transactions on Electrical Machines and Systems Pub Date : 2024-09-01 DOI: 10.30941/CESTEMS.2024.00043

Runze Jing;Gaolin Wang;Guoqiang Zhang;Dianguo Xu

引用次数: 0

Review of Thermal Design of SiC Power Module for Motor Drive in Electrical Vehicle Application 电动汽车应用中用于电机驱动的碳化硅功率模块热设计回顾

CES Transactions on Electrical Machines and Systems Pub Date : 2024-09-01 DOI: 10.30941/CESTEMS.2024.00041

Puqi Ning;Xiaoshuang Hui;Dongrun Li;Yuhui Kang;Jiajun Yang;Chaohui Liu

{"title":"Review of Thermal Design of SiC Power Module for Motor Drive in Electrical Vehicle Application","authors":"Puqi Ning;Xiaoshuang Hui;Dongrun Li;Yuhui Kang;Jiajun Yang;Chaohui Liu","doi":"10.30941/CESTEMS.2024.00041","DOIUrl":"https://doi.org/10.30941/CESTEMS.2024.00041","url":null,"abstract":"In the current vehicle electric propulsion systems, the thermal design of power modules heavily relies on empirical knowledge, making it challenging to effectively optimize irregularly arranged Pinfin structures, thereby limiting their performance. This paper aims to review the underlying mechanisms of how irregularly arranged Pinfins influence the thermal characteristics of power modules and introduce collaborative thermal design with DC bus capacitor and motor. Literature considers chip size, placement, coolant flow direction with the goal of reducing thermal resistance of power modules, minimizing chip junction temperature differentials, and optimizing Pinfin layouts. In the first step, algorithms should efficiently generating numerous unique irregular Pinfin layouts to enhance optimization quality. The second step is to efficiently evaluate Pinfin layouts. Simulation accuracy and speed should be ensured to improve computational efficiency. Finally, to improve overall heat dissipation effectiveness, papers establish models for capacitors, motors, to aid collaborative Pinfin optimization. These research outcomes will provide essential support for future developments in high power density motor drive for vehicles.","PeriodicalId":100229,"journal":{"name":"CES Transactions on Electrical Machines and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10702522","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142368475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Model-Free Speed Control of Single-Phase Flux Switching Motor with an Asymmetrical Rotor 带不对称转子的单相磁通开关电机的无模型速度控制

CES Transactions on Electrical Machines and Systems Pub Date : 2024-09-01 DOI: 10.30941/CESTEMS.2024.00039

Zongsheng Zhang;Congcong Guo

引用次数: 0

Message from Editors 编辑致辞

CES Transactions on Electrical Machines and Systems Pub Date : 2024-09-01 DOI: 10.30941/CESTEMS.2024.10052

引用次数: 0

Performance and Safety Improvement of Induction Motors Based on Testing and Evaluation Standards 基于测试和评估标准提高感应电机的性能和安全性

CES Transactions on Electrical Machines and Systems Pub Date : 2024-09-01 DOI: 10.30941/CESTEMS.2024.00018

Nkosinathi S. Khumalo;Ntombizotwa P. Memane;Udochukwu B. Akuru

{"title":"Performance and Safety Improvement of Induction Motors Based on Testing and Evaluation Standards","authors":"Nkosinathi S. Khumalo;Ntombizotwa P. Memane;Udochukwu B. Akuru","doi":"10.30941/CESTEMS.2024.00018","DOIUrl":"https://doi.org/10.30941/CESTEMS.2024.00018","url":null,"abstract":"The induction motor, which converts electrical energy into mechanical energy, has been recognized as the cornerstone of industrialization. The rotor of an induction motor can be either a squirrel cage rotor or a wound-type rotor, both existing as magnetless topologies. Three-phase squirrel cage induction motors are frequently utilized in industrial drives because they are dependable, have high starting torque, are self-starting and affordable. Single-phase induction motors, on the other hand, are commonly used for small loads such as domestic appliances in form of modest fans, pumps and electric power tools. In South Africa, there have been reports of fires and explosions resulting in live and property loss because of induction motors that have not been thoroughly tested or are incorrectly labelled in terms of ratings, electrical safety and performance. The goal of this study is targeted at preventing end-user injuries and failures caused by non-compliant induction motors, by evaluating locally manufactured/imported induction motors based on tests and evaluation from standards (IEC and SANS). The study is conducted using experimental procedures at the Explosion Prevention Technology and Rotating Machines (EPT and RM) laboratory, South African Bureau of Standards (SABS), South Africa. The main finding from the study shows differences in the nameplate characteristics of various induction motors which could have detrimental effects such as production and operational downtime in their end-use industries, at later stages.","PeriodicalId":100229,"journal":{"name":"CES Transactions on Electrical Machines and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10702521","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142368462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Content 内容

CES Transactions on Electrical Machines and Systems Pub Date : 2024-09-01

引用次数: 0

Five-Phase Synchronous Reluctance Machines Equipped with a Novel Type of Fractional Slot Winding 配备新型分数槽绕组的五相同步电感机

CES Transactions on Electrical Machines and Systems Pub Date : 2024-08-20 DOI: 10.30941/CESTEMS.2024.00029

S. M. Taghavi Araghi;A. Kiyoumarsi;B. Mirzaeian Dehkordi

{"title":"Five-Phase Synchronous Reluctance Machines Equipped with a Novel Type of Fractional Slot Winding","authors":"S. M. Taghavi Araghi;A. Kiyoumarsi;B. Mirzaeian Dehkordi","doi":"10.30941/CESTEMS.2024.00029","DOIUrl":"https://doi.org/10.30941/CESTEMS.2024.00029","url":null,"abstract":"Multi-phase machines are so attractive for electrical machine designers because of their valuable advantages such as high reliability and fault tolerant ability. Meanwhile, fractional slot concentrated windings (FSCW) are well known because of short end winding length, simple structure, field weakening sufficiency, fault tolerant capability and higher slot fill factor. The five-phase machines equipped with FSCW, are very good candidates for the purpose of designing motors for high reliable applications, like electric cars, major transporting buses, high speed trains and massive trucks. But, in comparison to the general distributed windings, the FSCWs contain high magnetomotive force (MMF) space harmonic contents, which cause unwanted effects on the machine ability, such as localized iron saturation and core losses. This manuscript introduces several new five-phase fractional slot winding layouts, by the means of slot shifting concept in order to design the new types of synchronous reluctance motors (SynRels). In order to examine the proposed winding's performances, three sample machines are designed as case studies, and analytical study and finite element analysis (FEA) is used for validation.","PeriodicalId":100229,"journal":{"name":"CES Transactions on Electrical Machines and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10640368","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142368295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Capacitorless Solid-State Power Filter for Single-Phase DC-AC Converters 用于单相 DC-AC 转换器的无电容固态电源滤波器

CES Transactions on Electrical Machines and Systems Pub Date : 2024-08-20 DOI: 10.30941/CESTEMS.2024.00033

Haitham Kanakri;Euzeli C. Dos Santos

{"title":"Capacitorless Solid-State Power Filter for Single-Phase DC-AC Converters","authors":"Haitham Kanakri;Euzeli C. Dos Santos","doi":"10.30941/CESTEMS.2024.00033","DOIUrl":"https://doi.org/10.30941/CESTEMS.2024.00033","url":null,"abstract":"Converters rely on passive filtering as a crucial element due to the high-frequency operational characteristics of power electronics. Traditional filtering methods involve a dual inductor-capacitor (LC) cell or an inductor-capacitor-inductor (LCL) T-circuit. However, capacitors are susceptible to wear-out mechanisms and failure modes. Nevertheless, the necessity for monitoring and regular replacement adds to an elevated cost of ownership for such systems. The utilization of an active output power filter can be used to diminish the dimensions of the LC filter and the electrolytic dc-link capacitor, even though the inclusion of capacitors remains an indispensable part of the system. This paper introduces capacitorless solid-state power filter (SSPF) for single-phase dc-ac converters. The proposed configuration is capable of generating a sinusoidal ac voltage without relying on capacitors. The proposed filter, composed of a planar transformer and an H-bridge converter operating at high frequency, injects voltage harmonics to attain a sinusoidal output voltage. The design parameters of the planar transformer are incorporated, and the impact of magnetizing and leakage inductances on the operation of the SSPF is illustrated. Theoretical analysis, supported by simulation and experimental results, are provided for a design example for a single-phase system. The total harmonic distortion observed in the output voltage is well below the IEEE 519 standard. The system operation is experimentally tested under both steady-state and dynamic conditions. A comparison with existing technology is presented, demonstrating that the proposed topology reduces the passive components used for filtering.","PeriodicalId":100229,"journal":{"name":"CES Transactions on Electrical Machines and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10640369","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142368502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling the System for Hybrid Renewable Energy Using Highly Efficient Converters and Generator 使用高效变流器和发电机的混合可再生能源系统建模

CES Transactions on Electrical Machines and Systems Pub Date : 2024-08-20 DOI: 10.30941/CESTEMS.2024.00032

Tefera Kitaba

引用次数: 0

Rare-Earth Magnet Free Flux-Switching Generator for Wind Turbines in Micro-Grids: A Review 用于微型电网风力涡轮机的无稀土磁通开关发电机：综述

CES Transactions on Electrical Machines and Systems Pub Date : 2024-07-18 DOI: 10.30941/CESTEMS.2024.00023

Tugberk Ozmen;Batı Eren Ergun;Mehmet Onur Gulbahce;Nevzat Onat

{"title":"Rare-Earth Magnet Free Flux-Switching Generator for Wind Turbines in Micro-Grids: A Review","authors":"Tugberk Ozmen;Batı Eren Ergun;Mehmet Onur Gulbahce;Nevzat Onat","doi":"10.30941/CESTEMS.2024.00023","DOIUrl":"https://doi.org/10.30941/CESTEMS.2024.00023","url":null,"abstract":"In traditional electricity generation plants, large powerful synchronous, induction, and direct current generators were used. With the proliferation of microgrids focused on electricity generation from renewable energy sources in today's power grids, studies have been conducted on different types of generators. Instead of the traditional generator architecture, generators with brushless structures, particularly those utilizing magnets for excitation, have found broad applications. Flux-switching generators (FSGs) are innovative types owing to their robust structure, active stator design, and high power density capabilities. However, designs have typically relied on rare-earth element magnets. Rare-earth magnets possess negative characteristics such as price uncertainty, the potential risk of scarcity in the future, and limited geographical production, leading to research on FSGs that do not depend on rare-earth magnets. This study comprehensively examines FSGs that do not use rare-earth element magnets. The study delves into the usage areas, operational mechanisms, structural diversities, and counterparts in the literature of these generators.","PeriodicalId":100229,"journal":{"name":"CES Transactions on Electrical Machines and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10604779","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142368477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0