인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
논문을 무제한 열람 이용할 수 있어요.
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Carrier-phase shifting between the two inverters (CPS-PWM) is an effective method for reducing switching-frequency torque ripple and acoustic noise in dual three-phase drives. However, despite its benefit in torque smoothing, this technique can intensify high-frequency current ripple. This phenomenon arises from the magnetic coupling between the two winding sets through the leakage inductance L<sub>ls</sub> which may lead to increased copper and iron losses, potentially offsetting the intended performance improvement. This paper investigates the role of L<sub>ls</sub> in determining the effectiveness of CPS-PWM. An analytical framework is established to describe the relationship between L<sub>ls</sub> and the switching-induced current ripple components. The proposed model is validated through both time-domain simulations and finite-element analysis, considering three winding configurations characterized by low, medium, and high leakage inductance. The results indicate that increasing L<sub>ls</sub> significantly suppresses PWM-related current ripple, resulting in reduced torque ripple and negligible efficiency degradation. In contrast, a small L<sub>ls</sub> tends to aggravate both torque ripple and overall losses. These findings provide practical design insights for selecting appropriate winding configurations in dual three-phase machines employing CPS-PWM.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.