A Decentralized Control of Partitioned Power Networks for Voltage Regulation and Prevention Against Disturbance Propagation

Mehrjerdi, Hasan; Lefebvre, S.; Saad, Maarouf; Asber, Dalal

doi:10.1109/tpwrs.2012.2225154

Cited by 82 publications

(31 citation statements)

References 23 publications

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“…In this study, the PSO technique is applied to solve the optimization problem in Equation (17). The aim is to determine the feasible control actions to the participating control devices in power grids.…”

Section: Proposed Algorithmmentioning

confidence: 99%

PSO-Based Voltage Control Strategy for Loadability Enhancement in Smart Power Grids

Hsu

Chen

2016

Applied Sciences

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This paper proposes a new voltage control methodology using the particle swarm optimization (PSO) technique for smart grid loadability enhancement. The goal of this paper is to achieve reliable and efficient voltage profile/stability regulation in power grids. This methodology is based on the decouple power flow equations and the worst-case design technique. Specifically, the secondary voltage control (SVC) problem is formulated as an L-infinity norm minimization problem which considers overall load voltage deviations in electrical power systems as an objective model, and the PSO technique is employed to determine a robust control action which aims to improve voltage profile and to enlarge transmission grid loadability by optimal coordinated control of VAR sources. The methodology was successfully tested on several IEEE benchmark systems.

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Section: Proposed Algorithmmentioning

confidence: 99%

PSO-Based Voltage Control Strategy for Loadability Enhancement in Smart Power Grids

Hsu

Chen

2016

Applied Sciences

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“…In order to achieve an efficient local control, some papers proposed to use partition methods for voltage regulation [18][19][20]. A graph is introduced to represent a distribution network, in which controllable devices are connected to different nodes.…”

Section: Introductionmentioning

confidence: 99%

“…In [18], an analytical partition method based on capacitor reactive power is presented. Reference [19] divided the power system into regions based on a graph partition method and investigated a secondary voltage control for each region to prevent the propagation of disturbances. Reference [20] developed an approach for voltage and reactive power control in order to deal with the fluctuations caused by intermittent changes of renewable resources.…”

Section: Introductionmentioning

confidence: 99%

Coordinated voltage regulation of hybrid AC/DC medium voltage distribution networks

Chen

Shen

et al. 2017

J. Mod. Power Syst. Clean Energy

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In a hybrid AC/DC medium voltage distribution network, distributed generations (DGs), energy storage systems (ESSs), and the voltage source converters (VSCs) between AC and DC lines, have the ability to regulate node voltages in real-time. However, the voltage regulation abilities of above devices are limited by their ratings. And the voltage regulation efficiencies of these devices are also different. Besides, due to high r/x ratio, node voltages are influenced by both real and reactive power. In order to achieve the coordinated voltage regulation in a hybrid AC/ DC distribution network, a priority-based real-time control strategy is proposed based on the voltage control effect of real and reactive power adjustment. The equivalence of real and reactive power adjustment on voltage control is considered in control area partition optimization, in which regulation efficiency and capability are taken as objectives. In order to accommodate more DGs, the coordination of controllable devices is achieved according to voltage sensitivities. Simulations studies are performed to verify the proposed method.

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“…Such a relationship, expressed as the voltage sensitivity, provides a linear relation between voltage deviations and electrical quantities. The voltage-reactive power (V-Q) sensitivity is generally used for steady-state analyses of AC power systems, and V-Q sensitivity is often used in planning, operation, assessment, and control of power systems [10][11][12][13][14][15][16][17][18][19][20]. Moreover, voltage sensitivity can be utilized in medium-or low-voltage distribution networks with high penetrations of DERs, which underlines the importance of optimal control in a distribution network.…”

Section: Introductionmentioning

confidence: 99%

Formulation and Analysis of an Approximate Expression for Voltage Sensitivity in Radial DC Distribution Systems

et al. 2015

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Abstract:Voltage is an important variable that reflects system conditions in DC distribution systems and affects many characteristics of a system. In a DC distribution system, there is a close relationship between the real power and the voltage magnitude, and this is one of major differences from the characteristics of AC distribution systems. One such relationship is expressed as the voltage sensitivity, and an understanding of voltage sensitivity is very useful to describe DC distribution systems. In this paper, a formulation for a novel approximate expression for the voltage sensitivity in a radial DC distribution system is presented. The approximate expression is derived from the power flow equation with some additional assumptions. The results of approximate expression is compared with an exact calculation, and relations between the voltage sensitivity and electrical quantities are analyzed analytically using both the exact form and the approximate voltage sensitivity equation.

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A Decentralized Control of Partitioned Power Networks for Voltage Regulation and Prevention Against Disturbance Propagation

Cited by 82 publications

References 23 publications

PSO-Based Voltage Control Strategy for Loadability Enhancement in Smart Power Grids

PSO-Based Voltage Control Strategy for Loadability Enhancement in Smart Power Grids

Coordinated voltage regulation of hybrid AC/DC medium voltage distribution networks

Formulation and Analysis of an Approximate Expression for Voltage Sensitivity in Radial DC Distribution Systems

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