FPGA-based Implementation of Space Vector Modulation Method and Switch Fault Diagnosis System for Neutral-Point-Clamped Inverters
碩士 === 國立高雄應用科技大學 === 電機工程系博碩士班 === 102 === This thesis investigates the space vector modulation (SVM) applied to neutral-point-clamped inverters (NPC). Principles of three-level space vector modulation and equivalent two-level space vector modulation are discussed, then the performance of two modul...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2014
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| Online Access: | http://ndltd.ncl.edu.tw/handle/z2c66z |
| Summary: | 碩士 === 國立高雄應用科技大學 === 電機工程系博碩士班 === 102 === This thesis investigates the space vector modulation (SVM) applied to neutral-point-clamped inverters (NPC). Principles of three-level space vector modulation and equivalent two-level space vector modulation are discussed, then the performance of two modulation methods are analyzed in controlling the neutral point clamped inverter. The fault phenomenon is studied when the inverter unexpectedly failed during normal operation, and a fault diagnosis system is proposed to determine the position of fault switch. The Matlab/Simulink software is used for simulation. In the end, FPGA is used as a core technology in developing the SVM signal generator and fault diagnosis system. The design and simulation are implemented in Quartus II environment, and the program is downloaded to a development board for realization. From the actual measurement results illustrate that FPGA implementation of space vector modulation function is correct and fault diagnosis system can get correct effect for fault identification.
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