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논문 기본 정보

자료유형
학술저널
저자정보
Jiuyi Feng (Shanghai University) Wenxiang Song (Shanghai University) Yuan Xu (Shanghai University) Fei Wang (Shanghai University)
저널정보
대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.12 No.5
발행연도
2017.9
수록면
1,872 - 1,882 (11page)

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초록· 키워드

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Medium voltage drive systems driven by high-power multi-level inverters operating at low switching frequency can reduce the switching losses of the power device and increase the output power. Employing subsection synchronous current harmonic minimum pulse width modulation (CHMPWM) technique can maintain the total harmonic distortion of current at a very low level. It can also reduce the losses of the system, improve the system control performance and increase the efficiency of DC-link voltage accordingly. This paper proposes a subsection synchronous CHMPWM approach of active neutral point clamped five-level (ANPC-5L) inverter under low switching frequency operation. The subsection synchronous scheme is obtained by theoretical calculation based on the allowed maximum switching frequency. The genetic algorithm (GA) is adopted to get the highprecision initial values. So the expected switching angles can be achieved with the help of sequential quadratic programming (SQP) algorithm. The selection principle of multiple sets of the switching angles is also presented. Finally, the validity of the theoretical analysis and the superiority of the CHMPWM are verified through both the simulation results and experimental results.

목차

Abstract
1. Introduction
2. Operating Principle of ANPC-5L Inverter
3. Rationale of CHMPWM
4. Optimization Solution of Switching Angles
5. Simulation Results
6. Experimental Results
7. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2018-560-001201590