By Topic

Dynamic interactions between the power system and DERs - modeling and case studies

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

2 Author(s)
Meliopoulos, A.P.S. ; Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA ; Cokkinides, G.J.

DERs in general have completely different dynamics than the traditional rotating machinery (generators and motors) based power system. Present DER technology uses converters for interfacing DERs to the power grid. These interfaces are inertialess and limit the electric current during faults and transients. At the same time, the converters have sophisticated feedback control loops that may interact with the transient of the electric power system with the end effect of generating unintended modes of oscillations. These characteristics of DERs impact the dynamics of the integrated power system with DERs. Present day models are inadequate to realistically simulate the new paradigm of the integrated model. We present a new modeling methodology for the integrated system based on quadratization of the model equations and quadratic integration of the resulting dynamical equations. The new approach captures the salient features of the integrated system. The paper presents the utilization of this model for transient simulation of the integrated system as well as for analyzing the modes of oscillations of the system using small signal analysis. The methodologies are illustrated with case studies. The case studies illustrate the unique dynamic behavior of the integrated system as the penetration level of DERs increases as well as the dynamic interactions between the system and the converter controls of the DERs which generate additional unexpected modes of oscillation

Published in:

Power Engineering Society General Meeting, 2006. IEEE

Date of Conference:

0-0 0