Methods for determining proximity to voltage collapse

Schlueter, R. A.; Hu, I.; Chang, M.W.; Lo, Ji Chang; Costi, Angela

doi:10.1109/59.131074

Cited by 99 publications

(36 citation statements)

References 3 publications

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“…This section describes various ways to determine the makeup of the reactive support group for a particular node. Similar work has been done [20], [21], [22], [23], [24], [25] to help gauge a system's proximity to voltage collapse.…”

Section: Reactive Support Groupsmentioning

confidence: 95%

Smart-Grid -enabled load and distributed generation as a reactive resource

Rogers

Klump

Khurana

et al. 2010

2010 Innovative Smart Grid Technologies (ISGT)

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Abstract-At the residential level, devices which are in place now and expected in the future have the ability to provide reactive power support. Inverters which connect distributed generation such as solar panels and pluggable hybrid electric vehicles (PHEVs) to the grid are an example. Such devices are not currently utilized by the power system. We investigate the integration of these end-user reactive-power-capable devices to provide voltage support to the grid via a secure communications infrastructure. We show how to determine effective locations in the transmission system and how to control reactive power resources at those locations. We also discuss how to determine reactive support groups which parallel the regions of the secure communications architecture that is presented. Ultimately, our goal is to present how the Smart Grid can allow the utilization of available end-user devices as a resource to mitigate power system problems such as voltage collapse.

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Section: Reactive Support Groupsmentioning

confidence: 95%

Smart-Grid -enabled load and distributed generation as a reactive resource

Rogers

Klump

Khurana

et al. 2010

2010 Innovative Smart Grid Technologies (ISGT)

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“…For getting more reasonable solutions, some expert rules are used to amend results in the optimization process [8]. Besides the stochastic methods above, the clustering analysis approach is adopted to divide power systems [9]. However, the conventional electrical distance can not embody the influence of reactive power resources on network partition, which results in dividing into inconsequential subsystems potentially, especially getting isolated nodes.…”

mentioning

confidence: 99%

Network Partition for Distributed Reactive Power Optimization in Power Systems

Liu

Liu³

et al. 2008

2008 IEEE International Conference on Networking, Sensing and Control

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Reactive power optimization is an important measure to improve the secure and economic performance of power systems. To reduce the dimension of solution space and solve the time-consuming problem more effectively, a network partition method for distributed reactive power optimization is introduced to divide a large-scale power system into several small-scale subsystems. The voltage response of nodes to the perturbation of various reactive power resources is calculated in the partition method. And a new electrical distance is worked out in the method, which combines the network topology information with the voltage response. The a decomposition algorithm is used to cluster nodes in power systems. Some supplements based on divided subsystems for distributed reactive power optimization are represented after network partition. The simulation of a practical system verifies that the reasonable and effective results can be obtained using the proposed partition method.

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“…Este índice também pode ser aplicado para detectar ilhas em um SEP. O método utiliza a informação do fluxo de potência convencional, apresenta uma simplicidade nos cálculos numéricos e os resultados são bem satisfatórios na determinação da margem de carregamento e nas ilhas do SEP. O método apresenta baixo esforço computacional, e, portanto, pode ser aplicado na operação em tempo real. Schlueter et al (1991) propuseram um algoritmo que identifica áreas de controle de tensão. Essas áreas são formadas por um conjunto de barras interconectadas que respondem de maneira similar a uma perturbação ocorrida em alguma barra localizada fora da área em questão.…”

Section: Carregamentounclassified

Método rápido para avaliação da margem de estabilidade de tensão considerando os limites de potência reativa dos geradores

Santos¹

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1. Sistema elétrico de potência. 2. Estabilidade de tensão. 3. Operação em tempo real. 4. Colapso de tensão. I. Título.Dedico este trabalho a toda minha família, especialmente à minha mãe Assenete, ao meu pai Carlos, aos meus cunhados Adairton e João Paulo, as minhas irmãs Carliane e Carligliane, aos meus sobrinhos Adriano e Guilherme e a memória da minha avó Odete. AGRADECIMENTOSA Deus por ter me concedido saúde e principalmente força nos momentos mais difíceis desta etapa da minha vida.Ao professor Dr. Luís Fernando Costa Alberto pela extraordinária orientação, sempre pronto a buscar soluções nos momentos mais difíceis deste trabalho. Agradeço também à sua grande amizade durante todo este processo, sempre mostrando o melhor caminho a ser seguido.À minha família que manteve apoio irrestrito tanto na parte afetiva quanto, em alguns momentos, na parte financeira.Ao professor Newton Geraldo Bretas pela oportunidade de fazer parte do grupo de pesquisa LACO e aos professores João Bosco e Rodrigo Ramos pela amizade e companheirismo.Ao meu grande amigo Raphael Augusto de Souza Benedito pela ajuda nas inúmeras dificuldades encontradas ao longo da pesquisa, além de ser um grande parceiro nos quadras e/ou campos de futebol.

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Methods for determining proximity to voltage collapse

Cited by 99 publications

References 3 publications

Smart-Grid -enabled load and distributed generation as a reactive resource

Smart-Grid -enabled load and distributed generation as a reactive resource

Network Partition for Distributed Reactive Power Optimization in Power Systems

Método rápido para avaliação da margem de estabilidade de tensão considerando os limites de potência reativa dos geradores

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