Three-Phase Unbalanced Transient Dynamics and Powerflow for Modeling Distribution Systems With Synchronous Machines

被引：44

作者：

Elizondo, Marcelo A. ^{[1
]}

Tuffner, Francis K. ^{[1
]}

Schneider, Kevin P. ^{[1
]}

机构：

[1] Pacific NW Natl Lab, Seattle, WA 98109 USA

来源：

IEEE TRANSACTIONS ON POWER SYSTEMS | 2016年 / 31卷 / 01期

关键词：

Distribution systems; machine models; microgrids; transient stability; unbalanced operation; STABILITY;

D O I：

10.1109/TPWRS.2015.2389712

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Unlike transmission systems, distribution feeders in North America operate under unbalanced conditions at all times, and generally have a single strong voltage source. When a distribution feeder is connected to a strong substation source, the system is dynamically very stable, even for large transients. However if a distribution feeder, or part of the feeder, is separated from the substation and begins to operate as an islanded microgrid, transient dynamics become more of an issue. To assess the impact of transient dynamics at the distribution level, it is not appropriate to use traditional transmission solvers, which generally assume transposed lines and balanced loads. Full electromagnetic solvers capture a high level of detail, but it is difficult to model large systems because of the required detail. This paper proposes an electromechanical transient model of synchronous machines for distribution-level modeling and microgrids. This approach includes not only the machine model, but also its interface with an unbalanced network solver, and a powerflow method to solve unbalanced conditions without a strong reference bus. The presented method is validated against a full electromagnetic transient simulation.

引用

页码：105 / 115

页数：11

共 18 条

[1]

Camm E. H., 2009, 2009 IEEE POW EN SOC, P1, DOI [10.1109/pes.2009.5275322, 10.1109/PES.2009.5275322, DOI 10.1109/PES.2009.5275322]

[2] DISTRIBUTION-SYSTEM POWER FLOW-ANALYSIS - A RIGID APPROACH [J].