The synchronous Pulse-Width Modulation (PWM) is quite complex for three-level neutral point-clamped (NPC) inverter. A simple central 60° synchronous modulation method is presented in this paper for three-level NPC inverter used in the multi-mode PWM strategy. For the fundamental voltage command, the switching angle could be real-time calculated based on this modulation method with different carrier frequency ratios. The switching strategy between these modes is discussed for multi-mode PWM. According to this method, a simulation model of the drive system with three-level inverter and induction motor is built. The simulation results at asynchronous modulation, central 60° synchronous modulation and square wave area, show that the output voltage values can meet the requirements with a good symmetry even in the case of low carrier frequency ratio. The smooth switching among different modes is also accomplished with low impulse current.
목차
Abstract 1. Introduction 2. Central 60° Synchronous Modulation for Three-level Inverters 2.1. Multi-mode PWM for Three-level Inverters 2.2. The Regular-sampled PWM at Low Carrier Frequency Ratio 2.3. Principles of Central 60° Synchronous Modulation and the Calculations of Switching Angles 3. Accomplishment of Central 60° Synchronous Modulation for Three-level Inverters 4. Performance Evaluation by Simulation 5. Conclusions References
키워드
AC driveneutral-point clamped three-level invertermulti-mode PWMsynchronous modulationcentral 60° modulation
저자
Fei Lin [ School of Electrical Engineering, Beijing Jiaotong University, No.3 ShangyuanCun, Beijing, 100044 ]
Qiaona Lian [ School of Electrical Engineering, Beijing Jiaotong University, No.3 ShangyuanCun, Beijing, 100044 ]
Jialiang Yuan [ School of Electrical Engineering, Beijing Jiaotong University, No.3 ShangyuanCun, Beijing, 100044 ]
Zhongping Yang [ School of Electrical Engineering, Beijing Jiaotong University, No.3 ShangyuanCun, Beijing, 100044 ]
보안공학연구지원센터(IJSH) [Science & Engineering Research Support Center, Republic of Korea(IJSH)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Smart Home
간기
격월간
pISSN
1975-4094
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Smart Home Vol.9 No.12