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Distributed Flexible AC Transmission Systems (D-FACTS) devices can be used as a distributed solution for relieving congestion in transmission lines. In this work, a model for D-FACTS devices is developed in an electromagnetic transients program and steady-state performance is validated against the existing model in PowerWorld. The devices are implemented in the IEEE12 bus dynamic test system. System...
Identification of temporal and topology related challenges to the operation of modern distribution systems (MDS) with high penetration of distributed energy resources is critical to developing and assessing control strategies. This paper proposes analysis of typical and historical load and generation patterns to identify and anticipate critical intersections in generation and load that stress distribution...
This paper is based on an ongoing project that is evaluating the potential for a microgrid in a city in northwest region of the US. Power for the microgrid will be supplied largely from existing hydroelectric generators and proposed photovoltaic installations. This study focuses on the voltage profiles of all of the buses in the microgrid during different seasons of the year and identifies the ways...
There are increasing costs associated with utility electricity generation and increasing requirements to meet more stringent environmental regulations. These influences have contributed to a recent increasing trend of generating power locally at distribution voltage level using non-conventional resources. The impact of this technology on existing high voltage electrical transmission networks needs...
During a real-time power system event, a system operator needs to conservatively reduce operating limits while the changing system conditions are analyzed. The time it takes to develop new operating limits could affect millions of transmission system users, especially if this event is classified by NERC as a Category D type event (extreme events resulting in the loss of two or more bulk electric system...
This paper provides a summary of a presentation on “Dynamic Reactive Compensation,” for a session sponsored by the DC and FACTS Education Working Group, under the DC and FACTS Subcommittee of the T&D Committee. This paper and the presentation at the conference meant to be tutorial in nature. This paper summarizes the phases of a power systems planning study for the installation of flexible ac...
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