By Topic

The control for grid connected inverter of distributed generation under unbalanced grid voltage

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Zhang Guowei ; Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing, China ; Wei Tongzhen ; Huang Shengli ; Kong Lingzhi

This paper describes a new control scheme of grid connected inverter of DG (distributed generation) under unbalanced grid voltage. In this paper, the proposed scheme of synchronous reference frame (SRF) controller can reduce the influence of unbalanced grid voltage, which is mainly caused by unbalanced distribution of single-phase and non-linear loads, etc. In order to realize the control goal, a positive SRF which rotates counterclockwise and a negative SRF which rotates clockwise are used to control the positive sequence current and negative sequence current, separately. According to PF =1 of grid side and average output active power is constant, the positive sequence reference current and negative sequence reference current are obtained. The positive sequence AC link feedback current is derived through a notch filter to eliminate the 100 Hz negative sequence in the positive SRF. The same as the negative sequence AC link feedback current. The effectiveness of the proposed scheme has been demonstrated through computer simulation.

Published in:

Sustainable Power Generation and Supply, 2009. SUPERGEN '09. International Conference on

Date of Conference:

6-7 April 2009