Design of multi-phase permanent magnet motor for ship propulsion

Choi, Ho-Yong; Park, Sun Jung; Kong, Young Kyung; Bin, Jae Goo

doi:10.1109/icems.2009.5382879

Cited by 10 publications

(5 citation statements)

References 1 publication

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“…As we can observe, the temperature change of each iteration corresponds to the loss. In the first iteration, the initial temperature is 20 • C, and therefore the copper loss calculated by 2D-FEM is minimum, which agrees well with Equation (17). With the update of temperature, the result reaches a steady state after three iterations.…”

Section: Steady-state Thermal Analysissupporting

confidence: 78%

“…PMSMs are commonly used because of their high efficiency, high power density, and fast dynamic response. In the case of PMSM technology, there are three basic design types: radial flux (surface [15,16] or interior [17][18][19]) and axial flux [20] PMSMs. The selection of PMSM types for ship propulsion is driven by the specification of propulsion systems.…”

Section: Bibliography Reviewmentioning

confidence: 99%

“…First, the initial temperatures of motor components such as the winding, PM, shaft, and bearing are set to be 20 • C. Second, the electromagnetic loss, particularly copper loss, is calculated by 2D-FEM and converted into heat sources in thermal analysis. Third, the thermal temperature rise ∆T is obtained by solving the thermal network using Equation (17), and the distribution of the temperature of the IPMSM is acquired. The process is repeated until the convergence rate and the temperature difference in percentage are less than 0.5%.…”

Section: Steady-state Thermal Analysismentioning

confidence: 99%

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System-Level Consideration and Multiphysics Design of Propulsion Motor for Fully Electrified Battery Powered Car Ferry Propulsion System

et al. 2023

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The Korean government is facing growing concern over the increasing levels of fine dust. A significant contribution to this problem comes from coastal vessels. To mitigate this, an electric ship propulsion system has been proposed as a solution to reduce air pollution. The application of a fully electric propulsion system in a ship is challenging due to size, capacity limitations, and the cost investment of the battery system. To address the challenges of battery limitation and initial investment costs, the development and supply of removable battery supply systems (RBSSs) for fully electrified battery powered (F-EBP) car ferries are studied. A permanent magnet synchronous motor (PMSM) for the F-EBP car ferry using a roll-on/roll-off-type RBSS is developed in this work. Firstly, the concept of the F-EBP car ferry is discussed, and the specifications of the electric car ferry propulsion system are provided. Secondly, motor design and electromagnetic analysis are performed using finite-element analysis (FEA), where the heat sources including copper loss, core loss, and PM loss are calculated. Mechanical loss is also considered. Finally, a thermal network of the motor is built considering the lumped-parameter model. The results of the thermal analysis indicate that the motor operates within the safe region and can perform well in rated working conditions.

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Section: Steady-state Thermal Analysissupporting

confidence: 78%

Section: Bibliography Reviewmentioning

confidence: 99%

Section: Steady-state Thermal Analysismentioning

confidence: 99%

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System-Level Consideration and Multiphysics Design of Propulsion Motor for Fully Electrified Battery Powered Car Ferry Propulsion System

et al. 2023

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“…The need of electric vehicles for high power density (resulting in low weight and volume) has led to the design of suitable inverters where the increase in power density will be realized by using wide band gap semiconductor power devices such as SiC or GaN, mainly due to their capabilities of being very small and capable of operating at high frequencies [152]. Multi-phase power converters have the additional advantages of improving the noise characteristics and that for their configuration power electronics can be used with less rated power than the corresponding three phase converter [153]. It may be noted that the number of publications on multi-phase motors is growing recently, as shown in Figure 28 [154].…”

Section: Mechanical Deformation Effectsmentioning

confidence: 99%

Overview on Permanent Magnet Motor Trends and Developments

Vlachou,

Sakkas,

Xintaropoulos

et al. 2024

Energies

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The extreme environmental issues and the resulting need to save energy have turned attention to the electrification of energy applications. One of the key components involved in energy efficiency improvements is the appropriate conception and manufacturing of electric machines. This paper overviews the electromagnetic analysis governing the behavior of permanent magnets that enable substantial efficiency gains in recent electric machine developments. Particular emphasis is given to modeling the properties and losses developed in permanent magnets in emerging high speed applications. In addition, the investigation of properties and harmonic losses related to ferromagnetic materials constituting the machine magnetic circuits are equally analyzed and discussed. The experimental validation of the implemented methodologies and developed models with respect to the obtained precision is reported. The introduction of mixed numerical techniques based on the finite element method intended to appropriately represent the different physical phenomena encountered is outlined and discussed. Finally, fast and accurate simulation techniques including aggregated lumped parameter models considering harmonic losses associated with inverter supplies are discussed.

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“…PM motors are highly regarded as top contenders for ship propulsion due to their compact size and high torque density. These motors are designed with a wide range of configurations, including surface-mounted PM [18][19][20], Halbach-array PM [21], spoke-array PM [22], and interior PM [23][24][25][26][27] arrangements. Furthermore, axial flux PM motors [28] are also considered.…”

Section: Introductionmentioning

confidence: 99%

Design and Optimisation of a 5 MW Permanent Magnet Vernier Motor for Podded Ship Propulsion

Arish,

Kamper,

Wang

2024

WEVJ

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The evolution of electric propulsion systems in the maritime sector has been influenced significantly by technological advancements in power electronics and machine design. Traditionally, these systems have employed surface-mounted permanent magnet synchronous motors (PMSMs) in podded configurations. However, the advent of permanent magnet Vernier motors (PMVMs), which leverage magnetic gearing effects, presents a novel approach with promising potential. This study conducts a comparative analysis between PMVMs and conventional PMSMs at a power level of 5 MW for podded ship propulsion, with a particular focus on the impact of gear ratios (Gr). An objective function was developed that integrates motor dimension constraints and the power factor (PF), a critical yet frequently neglected parameter in existing research. The findings indicate that PMVMs with lower Gr have lower mass and cost compared to those with higher Gr and traditional PMSMs, at a PF level of 0.7, which is high for Vernier machines. Moreover, PMVMs with lower Gr achieve efficiencies exceeding 99%, outperforming both their higher Gr counterparts and conventional PMSMs. The superior performance of PMVMs is attributed to lower current density and reduced copper loss, which contribute to their enhanced thermal performance. These details are elaborated on further in the paper. Consequently, these findings suggest that PMVMs with lower Gr are particularly well suited for high-power maritime propulsion applications, offering advantages in terms of compactness, efficiency (EF), cost-effectiveness, and thermal performance.

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Design of multi-phase permanent magnet motor for ship propulsion

Cited by 10 publications

References 1 publication

System-Level Consideration and Multiphysics Design of Propulsion Motor for Fully Electrified Battery Powered Car Ferry Propulsion System

System-Level Consideration and Multiphysics Design of Propulsion Motor for Fully Electrified Battery Powered Car Ferry Propulsion System

Overview on Permanent Magnet Motor Trends and Developments

Design and Optimisation of a 5 MW Permanent Magnet Vernier Motor for Podded Ship Propulsion

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