Design Optimization and Comparison of Direct-Drive Outer-Rotor SRMs Based on Fast Current Profile Estimation and Transient FEA
نویسندگان
چکیده
Outer-rotor switched reluctance machines (SRMs) have drawn much attention as promising candidates for in-wheel direct-drive motors of future electric vehicles. This article presents a systematic performance comparison three outer-rotor SRM topologies traction applications in terms the specific torque, electromagnetic efficiency, torque ripple, radial force, and mechanical aspects. A generalized design optimization framework SRMs is proposed to enable fast evaluation large numbers designs generated from differential evolution by incorporating an analytical current profile estimation into transient finite element analysis. The relationship between saliency ratio converter volt-ampere rating also discussed. calculations are then benchmarked with experimental results existing prototype. effectiveness prediction method approach validated.
منابع مشابه
Analysis and Design of a Permanent-Magnet Outer-Rotor Synchronous Generator for a Direct-Drive Vertical-Axis Wind Turbine
In Permanent-Magnet Synchronous Generators (PMSGs) the reduction of cogging torque is one of the most important problems in their performance and evaluation. In this paper, at first, a direct-drive vertical-axis wind turbine is chosen. According to its nominal value operational point, necessary parameters for the generator is extracted. Due to an analytical method, four generators with differen...
متن کاملFEA-Based Design Study of 12-Slot 14-Pole Outer-Rotor Dual Excitation Flux Switching Machine for Direct Drive Electric Vehicle Applications
This paper presents an investigation into feasibilities design of 12-Slot 14-Pole outerrotor dual excitation flux switching machine (ORDEFSM) for direct drive electric vehicle (EV) applications. The stator of the proposed machine consists of iron core made of electromagnetic steels, armature coils, permanent magnet (PM) and field excitation coils (FECs). The FECs in this proposed machine is use...
متن کاملon the comparison of keyword and semantic-context methods of learning new vocabulary meaning
the rationale behind the present study is that particular learning strategies produce more effective results when applied together. the present study tried to investigate the efficiency of the semantic-context strategy alone with a technique called, keyword method. to clarify the point, the current study seeked to find answer to the following question: are the keyword and semantic-context metho...
15 صفحه اولthe effects of multiple intelligences (focus on musical, visual, and linguistic) and direct instruction on learning grammar: a case on iranian efl students at elementary level
1.0 overview it seems that grammar plays a crucial role in the area of second and foreign language learning and widely has been acknowledged in grammar research. in other words, teaching grammar is an issue which has attracted much attention to itself, and a lot of teachers argue about the existence of grammar in language teaching and learning. this issue will remind us a famous sentence f...
a comparison of teachers and supervisors, with respect to teacher efficacy and reflection
supervisors play an undeniable role in training teachers, before starting their professional experience by preparing them, at the initial years of their teaching by checking their work within the proper framework, and later on during their teaching by assessing their progress. but surprisingly, exploring their attributes, professional demands, and qualifications has remained a neglected theme i...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Industry Applications
سال: 2021
ISSN: ['1939-9367', '0093-9994']
DOI: https://doi.org/10.1109/tia.2020.3029995