Congestion management in power systems – A review

Pillay, Anusha; Karthikeyan, S. Prabhakar; Kothari, D.P.

doi:10.1016/j.ijepes.2015.01.022

Cited by 198 publications

(104 citation statements)

References 40 publications

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“…This surplus is then used to pay the 'agreement rights'. An agreement right provides the correct holder the capacity to infuse power at one hub and remove it at another in the transmission network [7].…”

Section: A Conventional and Modernized Congestion Methods 1) Nodal Pmentioning

confidence: 99%

“…6) Optimization techniques and expert system: Congestion management is basically a non-linear program involving a lot of variables which could be solved using optimization algorithms. The most often used optimization techniques are categorized as Genetic Algorithm (GA), Particle Swarm Optimization (PSO), Bacterial Foraging Algorithm, Expert System Approach and a few other evolutionary strategies [7].…”

Section: ) Available Transfer Capability Based Congestion Managementmentioning

confidence: 99%

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Congestion management in Indian Power Transmission System

Khan¹,

Ahmad²,

Imran³

2017

IJET

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Abstract-Congestion, signify a crisis where limit of transmission capacity overflows than transmission network capabilities, resulting in a violation of network security limits, being thermal, voltage stability limits, or levelled crucial contingency condition. Power Distribution system comprises huge quantity of physical utilities and interconnected network make it vulnerable to congestion at any non-specific location. This paper presents the various methods to reduce the congestion in Indian power sector. Further, on the basis of limitation which has been indulge with the present scenario of power market some suggestion has been provided which may lead a convention grid to smart grid system.

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Section: A Conventional and Modernized Congestion Methods 1) Nodal Pmentioning

confidence: 99%

Section: ) Available Transfer Capability Based Congestion Managementmentioning

confidence: 99%

Congestion management in Indian Power Transmission System

Khan¹,

Ahmad²,

Imran³

2017

IJET

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“…Hence congestion problem is modeled as a multi objective problem [1].Solving the congestion problem including the stability constraints has been proposed in [2].The author has explored the possibility of transient-stability complications after removing congestion and introduced a dynamic technique to relieve congestion which maintains the stableness of the transmission system within the operating limit. An Extensive and diagnostic literature study has been reported in [3] about the conventional methods and the recent evolutionary programming methods used for solving congestion. The author also explains the methods followed for relieving congestion in various countries.…”

Section: Introductionmentioning

confidence: 99%

Congestion Management in Power Transmission Network under line interruption condition Using TCSC

Kalaimani¹,

Sundaram²

2018

IJERT

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Abstract-The Modern Power System faces new problems and challenges due to restructuring of power systems. Congestion and voltage stability issues are major impact on the present modernized electric power system network. In the modern electric power system network, utilization of Transmission lines are maximized close to or beyond their thermal limits to satisfy the increased power consumption and trades due to unexpected power transactions. If such unplanned power exchanges were not controlled, the power flow on some transmission lines may become overloaded. This phenomenon is called as congestion. Congestion also occurs due to failure or outage of transmission lines in power system. One of the most challenging problems to operate power system in stable condition is overloading of transmission lines by the private entities. The establishment of Flexible-Alternating-Current-Transmission-System (FACTS) devices is more encouraging in relieving congestion, regulates the power flow and upholds the stableness of the electric power system network. Thyristor Controlled Series Compensation (TCSC) device is utilized to relieve congestion and regulate voltage stability of the system. In this research paper alleviation of overloading of transmission lines is carried out in a newly developed fourteen bus test system by interrupting a transmission line. The fourteen bus test system is modeled and simulated using Matlab-Simulink software. The simulation process is carried out under testing condition of fourteen bus system with one line interrupted and improved the performance of system with TCSC.

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“…When demand is greater than the power transfer capacities of these lines, congestion takes place, and hence a management is required. Hence, congestion management is about managing the power transmission and distribution among the valuable customers prioritywise [3]. It also takes care of in-between technical concerns, for example, installation of transformer taps, modifying the topology, operation of conventional compensation devices, FACTS devices, generation rescheduling, and curtailment of load transactions.…”

Section: Introductionmentioning

confidence: 99%

Mitigating Congestion in a Power System and Role of FACTS Devices

Gupta

Kumar

Banerjee

et al. 2017

Advances in Electrical Engineering

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Congestion management refers to avoiding or relieving congestion. In transmission lines, congestion management is one of the most important issues for the reliable operation of power system in the deregulated environment. Restructuring has brought considerable changes in all possible domains including electric supply industry. By virtue of restructuring, electricity has now become a commodity and has converted into a deregulated one. The traditional regulated power system has now become a competitive power market. In the present scenario, the real time transmission congestion is the operating condition in which the transfer capability to implement all the traded transactions simultaneously is not enough due to either some expected contingencies or market settlement. Thus, congestion is associated with one or more violations of the physical, operational, and policy constraints under which grids operate. Thus, congestion management is about managing the power transmission and distribution among valuable consumers priority-wise. Placement of FACTS (Flexible Alternating Current Transmission System) devices for generation rescheduling and load-shedding play a crucial role in congestion management. FACTS devices are used to enhance the maximum load ability of the transmission system. FACTS increases the flexibility of power system, makes it more controllable, and allows utilization of existing network closer to its thermal loading capacity without jeopardizing the stability. FACTS technology can boost the transfer capability in stability limited systems by 20-30%. As a result, more power can reach consumers with a shorter project implementation time and a lower investment cost. This review work unites the various publications on congestion management in past few decades.

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Congestion management in power systems – A review

Cited by 198 publications

References 40 publications

Congestion management in Indian Power Transmission System

Congestion management in Indian Power Transmission System

Congestion Management in Power Transmission Network under line interruption condition Using TCSC

Mitigating Congestion in a Power System and Role of FACTS Devices

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