Open AccessAnalysis of the frequency‐based control of a master/slave micro‐grid
Author(s) -
Buticchi Giampaolo,
De Carne Giovanni,
Barater Davide,
Zou Zhixiang,
Liserre Marco
Publication year - 2016
Publication title -
iet renewable power generation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 76
ISSN - 1752-1424
DOI - 10.1049/iet-rpg.2016.0167
Subject(s) - voltage droop , phase locked loop , distributed generation , grid , computer science , energy storage , electrical engineering , automatic frequency control , renewable energy , electronic engineering , voltage , control theory (sociology) , engineering , power (physics) , voltage source , control (management) , jitter , physics , geometry , mathematics , quantum mechanics , artificial intelligence
Renewable energy penetration in the low‐voltage grid faces several limitations due to the current grid topology. Master/slave micro‐grids could help solving these issues, by offering additional services to the grid such as the power management of the distributed power energy sources. In some cases, the power produced by the distributed energy sources exceeds the local consumption of the low‐voltage grid. The consequent reverse power flow can be either dangerous (for the medium voltage) or impossible (for a micro‐grid with limited storage). The droop characteristic of commercial inverter can be exploited to avoid this behaviour. However, stability problems can arise due to a low phase‐locked‐loop (PLL) bandwidth. This study investigates the stability of this solution depending on the bandwidth of the PLL of the distributed power generation sources.