Radial MV networks voltage regulation with distribution management system coordinated controller

Bignucolo, Fabio; Caldon, Roberto; Prandoni, V.

doi:10.1016/j.epsr.2007.05.007

Cited by 104 publications

(47 citation statements)

References 8 publications

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“…The inherent risk of a shortfall in capacity requires a collaborative and coordinated sharing of the control task between several actions, such as storage, generator curtailment and load control. Coordination of several elements of control on the distribution network has been investigated in projects such as by the distribution management system coordinated controller proposed by Bignucolo et al (2008).…”

Section: Introduction To Energy Storagementioning

confidence: 99%

Evaluating the benefits of an electrical energy storage system in a future smart grid

et al. 2010

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. (2010) 'Evaluating the bene ts of an electrical energy storage system in a future smart grid.', Energy policy., 38 (11). pp. 7180-7188. Further information on publisher's website:http://dx.doi.org/10.1016/j.enpol.2010.07.045Publisher's copyright statement: NOTICE: this is the author's version of a work that was accepted for publication in Energy policy. Additional information:Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. AbstractInterest in electrical energy storage systems is increasing as the opportunities for their application become more compelling in an industry with a back-drop of ageing assets, increasing distributed generation and a desire to transform networks into Smart Grids. A field trial of an energy storage system designed and built by ABB is taking place on a section of 11kV distribution network operated by EDF Energy Networks in Great Britain. This paper reports on the findings from simulation software developed at Durham University that evaluates the benefits brought by operating an energy storage system in response to multiple events on multiple networks. The tool manages the allocation of a finite energy resource to achieve the most beneficial shared operation across two adjacent areas of distribution network. Simulations account for the key energy storage system parameters of capacity and power rating. Results for events requiring voltage control and power flow management show how the choice of operating strategy influences the benefits achieved. The wider implications of these results are discussed to provide an assessment of the role of electrical energy storage systems in future Smart Grids.

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Section: Introduction To Energy Storagementioning

confidence: 99%

Evaluating the benefits of an electrical energy storage system in a future smart grid

et al. 2010

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“…This means that S V/V has to have a positive value, while it is conventionally a negative value. The positive value of S V/V is needed to reduce line loss by increasing the voltage level and it is effective only for constant power loads as shown in Equation (9). However, in practical power systems, not only constant power loads but also constant current loads and constant impedance loads are contained.…”

Section: Suggestions For a New Volt/var Functionmentioning

confidence: 99%

“…Note that it is ineffective to use V/V function in Low Voltage (LV) networks. Conventionally, DGs have acted passively in the grids [6][7][8] and hence their hosting capacity has been limited [9][10][11]. To increase the hosting capacity of passively operating DGs and to enhance the voltage stability, an On-Load Tap Changer (OLTC) and shunt capacitors have been used to regulate the voltage [10,12].…”

Section: Introductionmentioning

confidence: 99%

New Requirements of the Voltage/VAR Function for Smart Inverter in Distributed Generation Control

Kim

Lee

et al. 2016

Energies

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International Electronical Committee (IEC) 61850-90-7 is a part of the IEC 61850 series which specifies the advanced functions and object models for power converter based Distributed Energy Resources (DERs). One of its functions, the Voltage/VAR (V/V) control function, is used to enhance the stability and the reliability of the voltage in the distribution system. The conventional V/V function acts mainly for flattening the voltage profile as for a basic grid support function. Currently, other objectives such as the minimization of line loss and the operational costs reduction are coming into the spotlight. In order to attain these objectives, the V/V function and hence the DER units shall actively respond to the change of distribution system conditions. In this paper, the modification of V/V function and new requirements are proposed. To derive new requirements of V/V function, loss minimization is applied to a particle swarm optimization (PSO) algorithm where the condition of voltage constraint is considered not to deteriorate the voltage stability of the distribution system.

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“…Figure 1 shows the line diagram of Case 1, which is a 20 kV AC/DC hybrid distribution network modified from [22]. The resistance data of the DC feeder is obtained by ignoring the reactance of the AC feeder.…”

Section: Case Studymentioning

confidence: 99%

Optimal Power Scheduling for a Medium Voltage AC/DC Hybrid Distribution Network

et al. 2018

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Abstract:With the great increase of renewable generation as well as the DC loads in the distribution network; DC distribution technology is receiving more attention; since the DC distribution network can improve operating efficiency and power quality by reducing the energy conversion stages. This paper presents a new architecture for the medium voltage AC/DC hybrid distribution network; where the AC and DC subgrids are looped by normally closed AC soft open point (ACSOP) and DC soft open point (DCSOP); respectively. The proposed AC/DC hybrid distribution systems contain renewable generation (i.e., wind power and photovoltaic (PV) generation); energy storage systems (ESSs); soft open points (SOPs); and both AC and DC flexible demands. An energy management strategy for the hybrid system is presented based on the dynamic optimal power flow (DOPF) method. The main objective of the proposed power scheduling strategy is to minimize the operating cost and reduce the curtailment of renewable generation while meeting operational and technical constraints. The proposed approach is verified in five scenarios. The five scenarios are classified as pure AC system; hybrid AC/DC system; hybrid system with interlinking converter; hybrid system with DC flexible demand; and hybrid system with SOPs. Results show that the proposed scheduling method can successfully dispatch the controllable elements; and that the presented architecture for the AC/DC hybrid distribution system is beneficial for reducing operating cost and renewable generation curtailment.

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Radial MV networks voltage regulation with distribution management system coordinated controller

Cited by 104 publications

References 8 publications

Evaluating the benefits of an electrical energy storage system in a future smart grid

Evaluating the benefits of an electrical energy storage system in a future smart grid

New Requirements of the Voltage/VAR Function for Smart Inverter in Distributed Generation Control

Optimal Power Scheduling for a Medium Voltage AC/DC Hybrid Distribution Network

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