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퍼지 제어 기법을 이용한 Z-소스 스파스 매트릭스 컨버터의 출력 성능 개선
- Alternative Title
- Improving Output Performance of the Z-source Sparse Matrix Converter using a Fuzzy Logic Controller
- Author(s)
- 박기우
- Alternative Author(s)
- Kiwoo Park
- Advisor
- 이교범
- Department
- 일반대학원 전자공학과
- Publisher
- The Graduate School, Ajou University
- Publication Year
- 2011-02
- Language
- kor
- Keyword
- 퍼지; Z-소스; 매트릭스; 컨버터Matrix Converter; Z-source Network; Fuzzy Logic Controller
- Alternative Abstract
- This paper presents a novel Z-source Sparse Matrix Converter (ZSMC) and its fuzzy logic controller based compensation method under unbalanced input voltage conditions. The ZSMC is developed based on the structure of a sparse matrix converter (SMC) to reduce the number of unipolar power semiconductor switches and employs a Z-source network to overcome the inherent limitation of the low voltage transfer ratio of the conventional matrix converters. Although the ZSMC is a two-stage converter, it directly connects between a source and a load without any intermediate energy storage component at the dc-link except the Z-source network for the boosting purpose. Therefore, the output of the ZSMC is directly affected by the disturbance in the input voltage source. In this paper, the topology and operational principle of the ZSMC is described and its modulation strategy is explained. A compensation method, based on a fuzzy logic controller, is presented to improve the output performance of the ZSMC under unbalanced input voltage conditions. The simulation and experimental results are shown to verify the feasibility of the ZSMC and its compensation method.
- Fulltext
- Appears in Collections:
- Graduate School of Ajou University > Department of Electronic Engineering > 3. Theses(Master)
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