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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 이교범
- 발행연도
- 2019
- 저작권
- 아주대학교 논문은 저작권에 의해 보호받습니다.
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This paper proposes highly reliability and stability operation of reverse matrix converter (RMC). The RMC is an AC/AC power converter operating in boost mode which is suitable for using in power generation system. In order to enhance the reliability and stability of this system, this paper approaches in two aspects, power quality improvement and switch fault detection. Due to absence of DC-link capacitor, an output power quality of the RMC deteriorates in case unbalance and harmonic problems occur in the input source. In this paper, two current control strategies are presented for dealing with these problems. Furthermore, a short fault detection strategy, which is intended for outer switches of current source inverter (CSI) in the RMC, is suggested. Since the switch fault causes current distortions transmitted to loads, it is directly related to the stability of the RMC system. The proposed fault detection strategy easily detects faulty switches by using current vector angle without additional components. The effectiveness of the proposed strategies is conducted simulation and experiment results.
목차
CHAPTER I. INTRODUCTION 1CHAPTER II. REVERSE MATRIX CONVERTER 42.1 Circuit Configuration 42.2 Modulation of the CSI 52.3 Modulation of the VSR 8CHAPTER III. CONTROL STRATEGY FOR IMPROVING POWER QUALITY IN THE RMC 113.1 Control Strategy for Reduction of Current Distortions under Unbalanced Input Voltages 113.2 Control Strategy for Harmonics Reduction 17CHAPTER IV. SHORT FAULT DETECTION STRATEGY FOR OUTER SWITCHES OF THE CSI 184.1 Short Fault Analysis 184.2 Short Fault Detection Strategy 19CHAPTER V. SIMULATION 215.1 Control Strategy for Reduction of Current Distortions under Unbalanced Input Voltages 215.2 Control Strategy for Harmonics Reduction 235.3 Short Fault Detection Strategy for Outer Switches of the CSI 26CHAPTER VI. DEVELOPMENT OF EXPERIMENT SET 28CHAPTER VII. EXPERIMENTAL RESULTS 317.1 Control Strategy for Reduction of Current Distortions under Unbalanced Input Voltages 327.2 Control Strategy for Reduction of Harmonics 35CHAPTER VIII. CONCLUSIONS 38REFERENCES 39
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