Modelling and analysis of unsymmetrical multi-microgrid operation of active distribution networks
2013 4th International Conference on Power Engineering, Energy and Electrical Drives, POWERENG 2013, İstanbul, Türkiye, 13 - 17 Mayıs 2013, ss.569-575, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Doi Numarası: 10.1109/powereng.2013.6635671
- Basıldığı Şehir: İstanbul
- Basıldığı Ülke: Türkiye
- Sayfa Sayıları: ss.569-575
- Anahtar Kelimeler: distributed generation, multi-microgrids, unsymmetrical operation
- Gazi Üniversitesi Adresli: Evet
Özet
A hybrid microgrid is proposed with the purpose of standardization having dedicated local controller algorithms for generalized indefinite instantaneous power Distributed Generators (DGs: Wind, PV) and definite instantaneous power DGs (sources that do not have intermittent characteristics). The first controller is based on DC link voltage control while the latter is based on conventional droop control. Firstly, stability analysis of the proposed microgrid is performed. Different from literature results, it is observed that oscillations between output filters are also effective for stable operation as well as non inductive line couplings of droop controlled inverters. Critical value for the coupling inductance in terms of oscillatory effect has been formulised for the stability. The analytical results are proven with simulations and also some critical aspects of Multi-microgrid operation have been brought out. © 2013 IEEE.