Resonance damping and torsional vibration issues in inverter-fed motor drive systems

The core module of renewable energy power generation system is grid connected inverter. LCL-based grid-connected inverter is widely valued because of its superior high frequency harmonic suppression ability. LCL-filter has better high frequency harmonic attenuation and better filtering effect, but r...

وصف كامل

محفوظ في:
التفاصيل البيبلوغرافية
المؤلف الرئيسي: Liang,Shijie
مؤلفون آخرون: Tang Yi
التنسيق: Thesis-Master by Coursework
اللغة:English
منشور في: Nanyang Technological University 2021
الموضوعات:
الوصول للمادة أونلاين:https://hdl.handle.net/10356/152059
الوسوم: إضافة وسم
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الوصف
الملخص:The core module of renewable energy power generation system is grid connected inverter. LCL-based grid-connected inverter is widely valued because of its superior high frequency harmonic suppression ability. LCL-filter has better high frequency harmonic attenuation and better filtering effect, but resonance suppression should be considered. In this dissertation, the inherent damping characteristic of LCL-filters is used to improve the resonance suppression. Two-mass drive system has the problem of torsional vibration when the torsion changes instantaneously. This issue can be solved using the same method as the LCL-filters. Both systems are modeled and simulated in PLECS to find the effect of resonance suppression or torsional vibration suppression. The two systems will be compared with each other.