Shunt capacitors in large transmission networks

Starr, E. C.; Harrington, E. J.

doi:10.1109/ee.1954.6439244

Cited by 7 publications

(1 citation statement)

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“…Some power companies and TSOs use local automatic high side voltage control at power plants to a relatively fixed and flat schedule, combined with transmission-level switched capacitor banks with local and SCADA control, to deliver secure and economic power system operation [5]- [8] Towards the same objective but featuring different control philosophy, AVC systems of hierarchical structure have originated in Europe and are the subject of this paper. Hierarchical AVC architecture enables wide-area closed-loop coordinated voltage and reactive power control, however, due to the inherent complexity of the task relies on zoning based control model reduction (RCM).…”

Section: Introductionmentioning

confidence: 99%

Zoning Evaluation for Improved Coordinated Automatic Voltage Control

Alimisis

Taylor

2015

IEEE Trans. Power Syst.

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Hierarchically structured automatic voltage control (AVC) architecture has attracted increased interest as networks operate closer to their capacity limits. Hierarchical AVC enables wide-area coordinated voltage regulation (CVR). Due to the inherent complexity of the task, it is based on reduced control models, i.e., simplified models of the system suitable for voltage control. It is a fact however that a single reduced control model (static RCM) cannot be optimal for all network configurations and operating conditions. In pursuit of an improved CVR, this paper investigates the applicability of zoning methodologies in adaptively determined RCM. It further argues that the selection of a zoning methodology affects not only the CVR operation, but also its robustness to erroneous data and proposes a comprehensive generic framework for evaluating its performance. Lastly, it extends and evaluates several zoning-based control model reduction methodologies: namely, hierarchical clustering employing two different proximity metrics, spectral-way and fuzzy-means, on both static and adaptive schemes.

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Section: Introductionmentioning

confidence: 99%