Reactive power control for improving voltage profiles: A comparison between two decentralized approaches

Calderaro, Vito; Conio, Gaspare; Galdi, Vincenzo; Piccolo, Antonio

doi:10.1016/j.epsr.2011.10.010

Cited by 49 publications

(31 citation statements)

References 10 publications

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“…Figs. [7][8][9] show that the control works properly without any violation of the capability curve limits. The consequence of this reactive power configuration required for the control is, certainly, an increase of the entire network losses.…”

Section: Case Study: Simulations and Resultsmentioning

confidence: 97%

Voltage support control of unbalanced distribution systems by reactive power regulation

Calderaro

Galdi

Lamberti

et al. 2014

IEEE PES Innovative Smart Grid Technologies, Europe

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The high penetration of distributed generation (DG) into distribution networks (DN) has highlighted the necessity to develop proper control techniques to supply customers with high power quality levels and to offer ancillary services to the distribution system operators (DSOs). This paper supposes an unbalanced DN in which the importance of applying voltage control strategies is largely justified in literature. In particular, we present a strategy that offers the mandatory voltage control ancillary service, able to avoid active power production curtailments, using the minimum reactive power for the regulation. Validation of the proposed control has been conducted on the IEEE 13-bus distribution system and the obtained results are encouraging

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Section: Case Study: Simulations and Resultsmentioning

confidence: 97%

Voltage support control of unbalanced distribution systems by reactive power regulation

Calderaro

Galdi

Lamberti

et al. 2014

IEEE PES Innovative Smart Grid Technologies, Europe

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“…In [8], the authors proposed two local controllers to regulate the voltage profiles at buses where wind power distributed generators are connected. The first method relies on the sensitivity analysis, and the other suggests a fuzzy based reactive power compensation to support the DG bus voltage.…”

Section: Introductionmentioning

confidence: 99%

Fuzzy-based control of on-load tap changers under high penetration of distributed generators

Azzouz

Farag

El-Saadany

2013

2013 3rd International Conference on Electric Power and Energy Conversion Systems

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Voltage regulation in the distribution networks becomes more challenging when the distribution generation (DG) units are introduced. The reasons behind that are: the reverse power flow which is introduced by the DG units, in addition to the probabilistic nature of the generated power due to renewable based DG units. In this paper, a fuzzy algorithm is proposed to provide an adaptive reference of the OLTC controller, such that the OLTC, which feeds a multiple feeders, can mitigate the effect of the high penetration of the DG units. The motivations behind using the fuzzy logic are: 1) it can map nonlinear relations behind its inputs and output; and 2) it can provide a smooth transition, which lead to a more relaxed tap operation compared to the conventional logic control. The proposed fuzzy algorithm is tested using a radial structure distribution network which is modeled using SIMULINKIMATLAB.

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“…Increasing k pc in violation with (24) produces a complex pole pair that increase R( p 4,5 ), enlarging (k pv , k iv ). The voltage control locus of p 4,5 shows that a (k pv , k iv ). The left-most pole is stopped at z 2 for clarity in the central region.…”

Section: Conclusion: Proposition Imentioning

confidence: 99%

“…The design of a voltage control strategy is limited by partial unknown network parameters and system dynamics [4]. If the estimation of the system parameters is poor, local voltage profile regulation can lead to reactive power oscillations [5].…”

mentioning

confidence: 99%

“…An assessment of the static voltage stability of a power system considering all power controls was presented in [8], using singular values, but dynamics of interacting converter systems in a network affect the parameter range of stabilizing controls and instability could occur [9]. An analysis of local regulation of voltage profiles in distributed systems, considering WT capability curves, was treated in [4], who also addressed stability. Static provision of reactive power by a decentralized generation system was studied in [10], and as reactive power capability is a function of active power output [11], combined power optimization and reactive power control were studied in [12].…”

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confidence: 99%

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Stability Boundaries for Offshore Wind Park Distributed Voltage Control

Gryning

Kocewiak

et al. 2017

IEEE Trans. Contr. Syst. Technol.

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Abstract-In order to identify mechanisms causing slow reactive power oscillations observed in an existing offshore wind power plant (WPP), and be able to avoid similar events in the future, voltage control is studied in this brief for a plant with a static synchronous compensator, type-4 wind turbines, and a park pilot control. Using data from the actual WPP, all stabilizing subsystem voltage proportional-integral controller parameters are first characterized based on their Hurwitz signature. Inner loop current control is then designed using internal mode control principles, and guidelines for feedforward filter design are given to obtain required disturbance rejection properties. This brief contributes by providing analytical relations between power plant control, droop, sampling time, electrical parameters, and voltage control characteristics, and by assessing frequencies and damping of reactive power modes over a realistic envelope of electrical impedances and control parameters.Index Terms-Reactive power control, voltage control, wind energy integration, wind power plants (WPPs).

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Reactive power control for improving voltage profiles: A comparison between two decentralized approaches

Cited by 49 publications

References 10 publications

Voltage support control of unbalanced distribution systems by reactive power regulation

Voltage support control of unbalanced distribution systems by reactive power regulation

Fuzzy-based control of on-load tap changers under high penetration of distributed generators

Stability Boundaries for Offshore Wind Park Distributed Voltage Control

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