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.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.1
- 수록면
- 59 - 69 (11page)
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초록· 키워드
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An alternative technique to control multilevel inverters with vector approximations has been presented. The innovative control method utilizes specially designed two-dimensional hysteresis comparators to simplify the implementation and improve the resultant waveform. The multistage inverter designed with maximum number of levels is operated in such a way to approximate the reference voltage vector by exploiting the large number of multilevel inverter vectors. A three-stage inverter with the main high voltage stage made of three phase, six-switch and singly-fed inverter is considered for application to the proposed design. The proposed control concept is to maintain a higher voltage stage state as long as it can lead to a target vector. High and medium voltage stages controllers are based on surface hysteresis comparators to hold the switching state or to perform the necessary change to achieve its reference voltage with minimal switching losses. The low voltage stage controller is designed to approximate the target reference voltage to the nearest inverter vector using the nearest integer rounding and adjustment comparators. Model simulation and prototype test results show that the proposed control technique clearly outperforms the previous control methods.
목차
Abstract
I. INTRODUCTION
II. VOLTAGE VECTOR APPROXIMATION CONTROL
III. MAIN VOLTAGE STAGE CONTROLLER
IV. CONTROL OF THE MEDIUM VOLTAGE STAGE
V. CONTROL OF THE LOW VOLTAGE STAGE
VI. RESULTS
VII. CONCLUSION
ACKNOWLEDGMENT
REFERENCES
참고문헌 (26)
참고문헌 신청
J. S. Lai / 1996 / Multilevel converters-A new breed of power converters / IEEE Trans. Ind. Appl 32(3):509~517
L. Maharjan / 2008 / A transformerless energy storage system based on a cascade multilevel PWM converter with star configuration / IEEE Trans. Ind. Appl 44(5):1621~1630
J. Rodriguez / 2009 / Multilevel converters : an enabling technology for high-power applications / Proc. of the IEEE 97(11):1786~1817
A. Rufer / 1999 / Asymmetric multilevel converter for high resolution voltage phasor generation / Proc. EPE’Sep.99 :10
M.N. Abdul Kadir / 2007 / Direct torque control permanent magnet synchronous motor drive with asymmetrical multilevel inverter supply / 7th International Conference on Power Electronics :1196~1201
L. Maharjan / 2008 / A transformerless energy storage system based on a cascade multilevel PWM converter with star configuration / IEEE Trans. Ind. Appl 44(5):1621~1630
J. Rodriguez / 2009 / Multilevel converters : an enabling technology for high-power applications / Proc. of the IEEE 97(11):1786~1817
A. Rufer / 1999 / Asymmetric multilevel converter for high resolution voltage phasor generation / Proc. EPE’Sep.99 :10
M.N. Abdul Kadir / 2007 / Direct torque control permanent magnet synchronous motor drive with asymmetrical multilevel inverter supply / 7th International Conference on Power Electronics :1196~1201
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