A Flexible AC Distribution System Device for a Microgrid

Author

Tan, K.T. ; So, P.L. ; Chu, Y.C. ; Chen, Michael Z. Q.

Author_Institution

Nanyang Technol. Univ., Singapore, Singapore

Volume

28

Issue

3

fYear

2013

fDate

Sept. 2013

Firstpage

601

Lastpage

610

Abstract

This paper presents a flexible ac distribution system device for microgrid applications. The device aims to improve the power quality and reliability of the overall power distribution system that the microgrid is connected to. The control design employs a new model predictive control algorithm which allows faster computational time for large power systems by optimizing the steady-state and the transient control problems separately. Extended Kalman filters are also employed for frequency tracking and to extract the harmonic spectra of the grid voltage and the load currents in the microgrid. The design concept is verified through different test case scenarios to demonstrate the capability of the proposed device and the results obtained are discussed.

Keywords

Kalman filters; computational complexity; control system synthesis; distributed power generation; nonlinear filters; power distribution control; power distribution reliability; power supply quality; predictive control; computational time; control design; extended Kalman filters; flexible ac distribution system device; frequency tracking; grid voltage; harmonic spectra; load currents; microgrid applications; model predictive control algorithm; power distribution system; power quality; power reliability; power systems; steady-state control problems; transient control problems; Extended Kalman filter; microgrid; model predictive control; power quality;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/TEC.2013.2260162

Filename

6517535