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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.3
- 수록면
- 464 - 472 (9page)
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초록· 키워드
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This study applies the selective harmonic elimination (SHE) technique to design and operate a regulated AC/DC/AC power supply suitable for maritime military applications and underground trains. The input is a single 50/60 Hz AC voltage, and the output is a 400 Hz regulated voltage. The switching angles for a multi-level inverter and transformer turns ratio are determined to operate with special connected transformers with equal power ratings and produce an almost sinusoidal current. As a result of its capability of directly controlling harmonics, the SHE technique is applicable to apparatus with congenital immunity to specific harmonics, such as series-connected transformers, which are specially designed to equally share the total load power. In the present work, a singlephase 50/60 Hz input source is rectified via a semi-controlled bridge rectifier to control DC voltage levels and thereby regulate the output load voltage at a constant level. The DC-rectified voltage then supplies six single-phase quazi-square H-bridge inverters, each of which supplies the primary of a single-phase transformer. The secondaries of the six transformers are connected in series. Through off-line calculation, the switching angles of the six inverters and the turns ratios of the six transformers are designed to ensure equal power distribution for the transformers. The SHE technique is also employed to eliminate the higher-order harmonics of the output voltage. A digital implementation is carried out to determine the switching angles. Theoretical results are demonstrated, and a scaled-down experimental 600 VA prototype is built to verify the validity of the proposed system.
목차
Abstract
I. INTRODUCTION
II. SYSTEM DESCRIPTION
III. CHARACTERISTICS OF SERIES TRANSFORMERS AND SHE STRATEGY
IV. SIMULATIONS AND RESULTS
V. COMPARISON BETWEEN EQUAL AND UNEQUAL POWER TRANSFORMER RATINGS
VI. EXPERIMENTAL RESULTS
IX. CONCLUSIONS
REFERENCES
참고문헌 (28)
참고문헌 신청
Y. Zhang and X. Ruan, “AC-AC Converter with Controllable Phase and Amplitude,” IEEE Trans. Power Electron., Vol. 29, No. 11, pp. 6235-6244, Jan. 2014.
A. K. Al Othman, N. A. Ahmed, M. E. Alsharidah, and H. A. Al Mekhaizim, “A hybrid real coded genetic algorithm – pattern search approach for selective harmonic elimination of PWM AC/AC voltage controller,” Electrical Power and Energy Systems, Vol. 44, No. 1, pp. 123-133, Jan. 2013.
J. L. Díaz Rodriguez, L. D. F. Pabon, and A. Pardo Garcia, “Harmonic distortion optimization of multilevel PWM inverter using genetic algorithms,” in Conf. Rec. IEEE 5th Colombian Workshop on Circuits and Systems (CWCAS), pp. 1-6, 2014.
A. M. Ruban, N. Hemavathi, and N. Rajeswari, “Real time harmonic elimination PWM control for voltage source inverters,” in Conf. Rec. Advances in Engineering, Science and Management (ICAESM), pp. 479-484, 2012.
M. Balasubramonian and S. Dharani, “Design and implementation of SHE PWM in a single phase A.C. chopper using generalized hopfield neural network,” in Conf. Rec. Engineering Technology and Science- (ICETS’14), pp. 2347-6710, 2014.
A. K. Al Othman, N. A. Ahmed, M. E. Alsharidah, and H. A. Al Mekhaizim, “A hybrid real coded genetic algorithm – pattern search approach for selective harmonic elimination of PWM AC/AC voltage controller,” Electrical Power and Energy Systems, Vol. 44, No. 1, pp. 123-133, Jan. 2013.
J. L. Díaz Rodriguez, L. D. F. Pabon, and A. Pardo Garcia, “Harmonic distortion optimization of multilevel PWM inverter using genetic algorithms,” in Conf. Rec. IEEE 5th Colombian Workshop on Circuits and Systems (CWCAS), pp. 1-6, 2014.
A. M. Ruban, N. Hemavathi, and N. Rajeswari, “Real time harmonic elimination PWM control for voltage source inverters,” in Conf. Rec. Advances in Engineering, Science and Management (ICAESM), pp. 479-484, 2012.
M. Balasubramonian and S. Dharani, “Design and implementation of SHE PWM in a single phase A.C. chopper using generalized hopfield neural network,” in Conf. Rec. Engineering Technology and Science- (ICETS’14), pp. 2347-6710, 2014.
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UCI(KEPA) : I410-ECN-0101-2016-560-002653847