Recently, the outboard engine system of internal combustion engine is widely used in the field of small ship propulsion. However, the internal combustion engine has serious problems of energy depletion and environmental problems, so electric propulsion methods are being studied. In this paper, we have developed important motors and controllers of electric propulsion system for small marine outboard motors. The motor design was performed through the motor characteristics analysis method, and the 30Kw system was developed through the BEMF processing circuit and the power conversion circuit by the embedded microprocessor. This study was carried out through government supported projects and achieved quantitative targets through accredited institutions.

Abstract
 1. 서 론
 2. 이론적 고찰
  2.1 국내 현황
  2.2 전기추진 시스템 설계
 3. 실험 및 고찰
 4. 결론
 5. References

• 원준희((주)LGM) | Jun-Hee Won
• 박주식((주)LGM) | Joo-Sik Park Corresponding Author