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Journal ArticleDOI

A zonal congestion management approach using real and reactive power rescheduling

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TLDR
In this article, a new zonal/cluster-based congestion management approach has been proposed, where the zones have been determined based on lines real and reactive power flow sensitivity indexes also called as real/reactive transmission congestion distribution factors, and generators in the most sensitive zones, with strongest and nonuniform distribution of sensitivity indexes, are identified for rescheduling their real power output for congestion management.
Abstract
In a deregulated electricity market, it may always not be possible to dispatch all of the contracted power transactions due to congestion of the transmission corridors. System operators try to manage congestion, which otherwise increases the cost of the electricity and also threatens the system security and stability. In this paper, a new zonal/cluster-based congestion management approach has been proposed. The zones have been determined based on lines real and reactive power flow sensitivity indexes also called as real and reactive transmission congestion distribution factors. The generators in the most sensitive zones, with strongest and nonuniform distribution of sensitivity indexes, are identified for rescheduling their real power output for congestion management. In addition, the impact of optimal rescheduling of reactive power output by generators and capacitors in the most sensitive zones has also been studied. The proposed new zonal concept has been tested on 39-bus New England system and a 75-bus Indian system.

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Citations
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Proceedings ArticleDOI

Dynamic locational marginal prices based zonal division in large-scale regional electricity markets

TL;DR: A topology based K-means clustering algorithm is developed which starts from calculating the locational marginal prices of buses for a certain period of time as the characteristic values of buses and then clusters the buses characterized by similar dynamic LMPs into zones while taking the system's topology into account.
Dissertation

Transmission Use of System Charges for a System with Renewable Energy

Jiangtao Li
TL;DR: In this article, the authors developed transmission charging methods for low carbon power systems, reflecting the contribution to transmission investments from different generation technologies, different locations, and critically different times, and quantifying their impacts on the time horizons of network investments, then translating these impacts to transmission charges.
Journal ArticleDOI

Multi-objective optimization and network security enhancement for congestion management in wholesale electricity market

TL;DR: An effective approach for managing congestion in a power transmission system by optimally placing distributed generators at the load end and assigning balanced weights to social welfare and network security enhancing the overall system performance is presented.
Proceedings ArticleDOI

Congestion management using dispatch or phase shifting transformers

TL;DR: In this article, the dispatch method is analyzed in two versions: static and differential, each one applied to outputs or to loads, and two alternate locations are exemplified for managing congestion under a particular operation regime.
Proceedings ArticleDOI

Transmission congestion management in restructured power system by rescheduling of generators using TLBO

TL;DR: One of the most recently developed meta-heuristic technique Teaching learning based optimization (TLBO) is applied on the standard IEEE 30 bus system to manage three different congestion scenarios at optimal cost and is found to be qualitatively better than some other standard optimization techniques.
References
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TL;DR: In this paper, the authors present a graduate-level text in electric power engineering as regards to planning, operating, and controlling large scale power generation and transmission systems, including characteristics of power generation units, transmission losses, generation with limited energy supply, control of generation, and power system security.
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TL;DR: The Flexible AC Transmission System (FACTS)—a new technology based on power electronics—offers an opportunity to enhance controllability, stability, and power transfer capability of ac transmission systems.
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TL;DR: In this paper, the authors present a method to find the most relevant information from Bibliogr. : p. 255-266. Index Reference Record created on 2004-09-07, modified on 2016-08-08
Journal ArticleDOI

Contract Networks for Electric Power Transmission

TL;DR: In this paper, the authors propose a contract path option to address the problem of loop flow and congestion in electric power transmission systems, which provides an internally consistent framework for assigning long-term capacity rights to a complicated electric transmission network.
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K.R. Padiyar
TL;DR: A review of classical methods of analysis of generators can be found in this paper, where the authors present a simulation for study of Transient Stability Application of Energy Function Methods transient Stability Controllers.
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