Cooling System Design and Thermal analysis of a PMSM for Rail Transit

Cheng, Min; Ding, Shichuan; Li, Wei; Zhang, Peng; Wang, Qunjin; Duan, Minghua

doi:10.1109/iciea48937.2020.9248320

Cited by 5 publications

(7 citation statements)

References 11 publications

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“…At this time, such a state of motion is called turbulent flow. The equal thermal conductivity of the air gap is calculated according to formula (5) [12]:…”

Section: Boundary Conditionmentioning

confidence: 99%

“…In References [4]- [7], the temperature increase of different motors under extreme overload operation was studied by finite element approach, and the precision of the results was greatly improved by experiments. In reference [8]- [12], the fluid field and temperature field of the motor are calculated by the finite volume approach, and the flow state of the air inside the motor and the distribution of the temperature increase of the motor are obtained. The state parameters of various cooling media under different cooling methods are compared, and the results are proved by experiments.…”

Section: Introductionmentioning

confidence: 99%

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Research on Thermal Calculation and End Winding Heat Conduction Optimization of Low Speed High Torque Permanent Magnet Synchronous Motor

Tong

2023

Trans. Electr. Mach. Syst.

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Because of its simple structure, large torque and high efficiency, permanent magnet synchronous motor of low speed and high torque is widely adopted in many fields. In this paper, a 394.5kW mining low-speed high-torque permanent magnet synchronous motor (LSHTPMSM) is regarded as the study object. According to the physical model, a three-dimensional equivalent heat transfer temperature field calculation model of the motor is built to simulate the temperature distribution of the motor under rated conditions. In terms of the serious issue of stator winding temperature increase of permanent magnet synchronous motor of low speed and high torque, the heat conduction optimization of the end of the stator winding is studied, which enhances the heat dissipation effect of the stator end winding, effectively reduces its temperature increase and temperature gradient with the winding in the slot, and improves the practical efficiency and service life of the motor. Finally, the motor temperature rise test platform is constructed for the verification of the feasibility of the optimization scheme, which provides a reference direction for the heat dissipation optimization of permanent magnet synchronous motor of low speed and high torque.

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“…At this time, such a state of motion is called turbulent flow. The equal thermal conductivity of the air gap is calculated according to formula (5) [12]:…”

Section: Boundary Conditionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on Thermal Calculation and End Winding Heat Conduction Optimization of Low Speed High Torque Permanent Magnet Synchronous Motor

Tong

2023

Trans. Electr. Mach. Syst.

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“…Permanent magnet (PM) synchronous motors (PMSMs) have many advantages including high power density, high torque density, high efficiency and wide speed range, so they are increasingly applied in electric vehicles, distributed power generation, flywheel energy storage and turbines [1–4]. Due to the development trend of high power and miniaturization of PMSMs, the increased difficulties in motor heat dissipation lead to higher temperature rise, which accelerates the insulation aging in stator windings and degrades the electromagnetic performance of the PMs even causes the irreversible demagnetization [5,6]. Therefore, it is essential to select and design the reasonable heat dissipation system of the PMSM and analyze the temperature field and fluid field within the motor.…”

Section: Introductionmentioning

confidence: 99%

Impact of the Motor Length‐to‐Diameter Ratio on the Selection of Cooling Water Channels for the Permanent Magnet Synchronous Motor

Xiaoyuan,

Shuangshuang,

Lixin

et al. 2023

IEEJ Transactions Elec Engng

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Aiming at the problem of difficulties in heat dissipation for a permanent magnet synchronous motor (PMSM) with high power/torque density, the effect of motor length‐to‐diameter ratio (r0) on the selection of cooling water channels is investigated from the perspective of the geometric parameters of the PMSM in this paper. First, the 3‐D fluid–solid coupled heat transfer models of three actual motors with the length‐to‐diameter ratios of 0.27, 0.81 and 2.04 are established. Every model is calculated under spiral, axial and circumferential cooling water channels, respectively. The cooling effect, cooling energy loss and motor thermal balance are compared and analyzed. Then the optimal cooling water channel for each of three motors is confirmed. Further, the motor temperature rise and fluid differential pressure are plotted. The threshold of motor length‐to‐diameter ratios is determined at which the overall performance of the axial and circumferential cooling water channel is highly similar. The general conclusions of selection of cooling water channels for PMSMs with different geometry shape are summarized. Finally, a prototype with r0 = 0.27 is fabricated and tested, verifying the validity of the fluid–solid coupling simulation analysis. © 2023 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.

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“…Os ímãs de ligas de Alnico (Alumínio, Níquel, Cobalto e Ferro), por sua vez, possuem elevada magnetização residual e baixo coeficiente de temperatura, embora sejam mais suscetíveis à desmagnetização, conforme Gieras (2009). A ferrite, material cerâmico magnetizável e de menor custo, também é considerada para introdução no PMSM (CHENG et al, 2020).…”

Section: Estado Da Arteunclassified

“…O custo de produção de uma máquina elétrica, a exemplo do motor síncrono de ímãs permanentes, é função de diversas variáveis mercadológicas e construtivas, segundo Gieras (2009) (2013), evidencia-se a redução de custos providenciada pela introdução das técnicas "sensorless" de controle. A escolha do sistema apropriado de refrigeração para o PMSM ferroviário de tração também representa uma importante variável em termos de custos (CHENG et al, 2020).…”

Section: Custos E Investimentounclassified

Estudo comparativo para motor síncrono de ímãs permanentes em tração elétrica ferroviária.

Burnett

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Os desenvolvimentos científicos e tecnológicos ocorridos nos últimos anos impreterivelmente guardam um compromisso justificado com a elevação dos índices de eficiência energética, em favorecimento da preservação ambiental e de recursos naturais em escala global. Ainda que formas cada vez menos poluentes para o uso da energia cresçam exponencialmente em utilização, os desafios posteriores se situarão adicionalmente na pesquisa por otimização das tecnologias existentes. Neste contexto, este trabalho realiza no domínio da aplicação em transporte urbano ferroviário um estudo comparativo para a utilização do motor síncrono de ímãs permanentes como acionamento de tração elétrica, perante outros modelos já estabelecidos e consolidados no mercado, principalmente em termos de eficiência energética. Este estudo se fundamenta inicialmente na revisão teórica baseada na literatura para sistematização de características de engenharia intrínsecas do acionamento em questão, para que em sequência com a conceituação das propriedades de dinâmica do movimento se obtenha por meio de simulações os dados necessários para a elaboração da comparação por meio da investigação de aplicações e estudo de caso.Palavras-chave: Máquinas. Tração Elétrica. Ferrovias.

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Cooling System Design and Thermal analysis of a PMSM for Rail Transit

Cited by 5 publications

References 11 publications

Research on Thermal Calculation and End Winding Heat Conduction Optimization of Low Speed High Torque Permanent Magnet Synchronous Motor

Research on Thermal Calculation and End Winding Heat Conduction Optimization of Low Speed High Torque Permanent Magnet Synchronous Motor

Impact of the Motor Length‐to‐Diameter Ratio on the Selection of Cooling Water Channels for the Permanent Magnet Synchronous Motor

Estudo comparativo para motor síncrono de ímãs permanentes em tração elétrica ferroviária.

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