Modelling of aggregated operation of power modules in low-voltage DC-grids

Author

Rykov, K. ; Ott, Leopold ; Duarte, Jorge ; Lomonova, E.A.

Author_Institution

Eindhoven Univ. of Technol., Eindhoven, Netherlands

fYear

2014

fDate

26-28 Aug. 2014

Firstpage

1

Lastpage

9

Abstract

The paper focuses on small-signal analysis of aggregated operation of the low-voltage DC-grids comprising various power and load modules. Complex impedances, which can be identified experimentally, represent the internal structure of power converters and may become a reason for voltage instabilities while being gathered together in the DC-grid using cables. The paper proposes ideas to analyze and forecast possible resonance issues of parallel operation of power modules in the test model of the 380V DC-grid and make recommendations in order to avoid them.

Keywords

cables (electric); distributed power generation; power convertors; power grids; voltage regulators; aggregated operation modelling; cables; complex impedances; internal structure; load modules; low-voltage DC-grids; low-voltage DC-microgrids; power converters; power modules; small-signal analysis; test model; voltage 380 V; voltage instability; Frequency conversion; Impedance; Light emitting diodes; Multichip modules; Power cables; Power system stability; Stability analysis; Impedance measurement; Low-voltage DC-grids; Microgrid; Renewable energy systems; Small-signal stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications (EPE'14-ECCE Europe), 2014 16th European Conference on

Conference_Location

Lappeenranta

Type

conf

DOI

10.1109/EPE.2014.6910922

Filename

6910922