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논문 기본 정보

자료유형
학술저널
저자정보
Hyung-Seok Park (Pusan National University) Sang-Woo Park (LG Electronics) Dong-Youn Kim (Pusan National University) Jang-Mok Kim (Pusan National University)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.19 No.3
발행연도
2019.5
수록면
761 - 770 (10page)

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초록· 키워드

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This paper proposes a hybrid phase windings excitation method for improving the efficiency of a 7-phase brushless DC (BLDC) motor in the electric propulsion system of a ship. The electrical losses of a BLDC motor system depend on the operating region and the number of excited phase windings (2-phase, 4-phase or general 6-phase windings). In this paper the operating region and torque/speed characteristics according to the motor rotation speed and propeller load are analyzed for a number of excitation methods. In addition, it analyzes the electrical losses of the system under each of the excitation methods in the entire operating region of the motor. In every sampling time, the proposed control method calculates the electrical loss of the system for each of the excitation methods and operates a 7-phase BLDC motor by selecting the excitation method that results a decreased electrical loss at the operating speed. The usefulness of the proposed control algorithm is verified through experimental results.

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Abstract
Ⅰ. INTRODUCTION
Ⅱ. PHASE EXCITATION METHODS
Ⅲ. TORQUE CHARACTERISTICS AND OPERATING RANGE FOR EACH OF THE EXCITATIONMETHODS
Ⅳ. LOSS ANALYSIS OF A 7-PHASE BLDC MOTOR ACCORDING TO THE EXCITATION METHOD
Ⅴ. OVERALL CONFIGURATION OF THE PROPOSED HYBRID EXCITATION METHOD
Ⅵ. EXPERIMENTAL RESULTS
Ⅶ. CONCLUSIONS
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UCI(KEPA) : I410-ECN-0101-2019-560-000683674