보조전원장치에 의한 12-펄스정류기의 고조파 저감
A harmonic reduction scheme for 12-pulse diode rectifiers by auxiliary voltage supply
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
본 논문에서는 12-펄스정류기의 고조파 저감을 위해 12-펄스정류기의 커패시터 중앙 DC버스에 보조전원장치의 설치를 제안하였다. 그리고 이 장치에 의해 고조파가 감소되는 이론적인 배경을 다루었으며 부하전류의 크기에 따라 보조전원장치가 어떻게 제어되어야 하는지를 밝혔다. 본 논문에서 제안한보조전원장치는 구형파 전압원을 적용함으로써 능동필터와 같은 다른 방식에 비해 시스템 구조가 간단하고 보다 저렴하다. 본 논문에서 제안하는 12-펄스정류기 고조파 저감법의 검증을 위해 소프트웨어PSIM을 활용하였으며 제안된 방식의 유효성을 확인하였다.
Abstract
Diode rectifiers have been widely used for an AC to DC converter. But a big problem is that theyinclude large harmonics components in the input currents. A 12-pulse configuration with phase shifting transformeris useful for reducing them. however, it still includes the (12m±1)th (m; integer) harmonics in the inputcurrents. In this paper, we propose a single-phase square wave auxiliary voltage supply which is insertedin the middle DC bus. It reduces harmonics especially the 11th and 13th and the harmonic characteristic becomesalmost equivalent to a 24-pulse rectifier. Theoretical analysis of the combined 12-pulse diode rectifierwith the auxiliary supply is presented and a control method of the auxiliary supply is proposed. The reductionin the input current harmonics is verified by simulation using software PSIM.
참고문헌 (10)
- X. Liang, "Influence of reactors on input harmonics of variable fre-quency drives", IEEE Transactions on Industry Applications, 47, pp.2195~2203 (1972)
- M. E. Villablanca, "An efficient current distortion suppression method for six-pulse bridge rectifiers", IEEE Transactions on Industry Electronics, 54, pp.2532~2538 (2007)
- H. Akagi, "A transformerless hy-brid active filter using a three-level pulse width modulation (PWM) converters for medium-volt-age motor crive", IEEE Transactions on Power Elecrtonics, 25, pp.1365~1374 (2010)
- R. Mathew, "Vector control techniques for induction mo-tors", IEEE International Conference on Power Elecrtonics and Drives, 2, pp.813~818 (1995)
- P. C. Krause, "Analysis of Electrical Machinery" (1987), McGraw-Hill Book Company
- A. E. Fitzgerald, "Electric Machinery" (2002), McGraw-Hill Book Company
- B. K. Bose, "Power Electronics and AC Drives" (1987), Prentice-Hall
- B. Wu, "High-Power Converts and AC Drives" (2006), Wiley Inter-Science
- American Bureau of Shipping, "Guidance notes on “Control of harmonics in electrical power systems”" (2006), ABS Plaza Houston
- Peter Vas, "Sensorless Vector and Direct Torque Control" (1998), Oxford Science Pub