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선택한 단어 수는 30입니다.
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최대 10 단어까지만 선택 가능합니다.
제안 방법
- Although this study was accomplished by limiting the WRSM type for the ISG, this can be an effective method for selecting an electrical steel sheet when designing a motor other than one with a WRSM, as shown in Table 1, by considering the cost, size, and heat dissipation on the operation of a 48-V ISG system. Furthermore, this study provides an effective method for selecting the type of electrical steel sheet when designing a motor that, like the ISG system, has abroad driving range and various driving modes.
- First, the specifications of maximum power and continuous power and major driving speeds were determined, and an efficiency analysis was carried out based on the type of electrical steel sheet.
- Although this study was accomplished by limiting the WRSM type for the ISG, this can be an effective method for selecting an electrical steel sheet when designing a motor other than one with a WRSM, as shown in Table 1, by considering the cost, size, and heat dissipation on the operation of a 48-V ISG system. Furthermore, this study provides an effective method for selecting the type of electrical steel sheet when designing a motor that, like the ISG system, has abroad driving range and various driving modes.
- In this study, the efficiency of an ISG motor with a WRSM was calculated using the finite element method. The analysis considered the core loss and copper loss of the WRSM according to the type of electrical steel sheet used for the field winding of the ISG at different driving speeds. First, the specifications of maximum power and continuous power and major driving speeds were determined, and an efficiency analysis was carried out based on the type of electrical steel sheet.
- However, research into this subject has been limited to only specific types of steel sheets. Therefore, in this paper, various electrical steel sheets are selected with different driving speeds and modes, and an efficiency analysis is performed based on the core loss and copper loss. Using the analyzed results, a method for selecting an electrical steel sheet will be proposed.
- Using the finite element method (FEM), the efficiency of the motor is evaluated by applying a maximum power of 10 kW, continuous power of 4 kW, and three types of electrical steel sheet according to rotating speed of the WRSM. The specifications listed in Table 2 are used for the analysis.
대상 데이터
- To determine the geometry design of the WRSM that satisfies the specifications in Table 2, 35PN230 electrical steel sheet (typically used in the permanent magnet motors of EVs/HEVs) was applied. The major design specifications are 8-pole/36-slot with an air-gap length of 0.5 mm. A two-dimensional cross-sectional view of the WRSM design is shown in Fig.
- Thus, it is necessary to use an electrical steel sheet that has excellent core loss and magnetization characteristics. Therefore, the electrical steel sheet 50PNE470 was also used in this study.
이론/모형
- This method will consider the efficiency and output according to driving mode frequency. A wound rotor synchronous machine (WRSM) was applied to the type of ISG motor in this study. This ISG motor type has many advantages in cost compared with other motors because it does not use a rare-earth magnet [8].
- In this study, the efficiency of an ISG motor with a WRSM was calculated using the finite element method. The analysis considered the core loss and copper loss of the WRSM according to the type of electrical steel sheet used for the field winding of the ISG at different driving speeds.
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