Modeling and simulation of micro-grid based on small-hydro

Author

Jingtao Zhao ; Na Chen ; Chen Chen ; Yangliu Cui ; Hongzhong Ma

Author_Institution

NARI Technol. Co., Ltd., Nanjing, China

fYear

2014

fDate

20-22 Oct. 2014

Firstpage

3257

Lastpage

3264

Abstract

As a renewable resource, small hydro is gaining more and more attention due to its variable advantages. The paper focuses on the operation of the micro-grid based on small-hydro. A simulation model of the micro-grid is established by Simulink, which takes the following two cases into account, the grid-connected operation and isolated operation. Under these two cases, the differences of the excitation voltage and rotator speed are analyzed respectively. Power quality of the voltage is also analyzed. Faults are pre-set in the grid and micro-grid. Then the operations of the micro-grid when faults happen are simulated. By comparison of the results, the effects of the fault-cutting-off time are discussed.

Keywords

distributed power generation; hydroelectric power; power distribution faults; power supply quality; Simulink; excitation voltage; fault-cutting-off time; grid-connected operation; isolated operation; microgrid; power quality; rotator speed; small hydro; Generators; Load modeling; Mathematical model; Power systems; Turbines; Voltage measurement; faults; micro-grid; model; simulation; small-hydro;

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology (POWERCON), 2014 International Conference on

Conference_Location

Chengdu

Type

conf

DOI

10.1109/POWERCON.2014.6993812

Filename

6993812