Improving Network Visibility for Better Integration of Low Carbon Technologies into LV Networks

Strachan, A. F.; Elders, Ian; Galloway, Stuart

doi:10.1109/upec.2018.8542016

Cited by 6 publications

(7 citation statements)

References 17 publications

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“…As a secondary function of the battery storage, CI is used to drive battery charge and discharge actions with the intention of limiting interaction with the grid to periods of increased renewable generation supporting a local low carbon benefit. In GB although smart meter data is also recorded at a half hourly time interval, concerns have been raised as to the applicability for dynamic control at this resolution [7]. Therefore, it has been assumed that the CI remains constant throughout each half hourly time step allowing for control at a 5 minutely resolution which aligns with the CREST demand model.…”

Section: Model Developmentmentioning

confidence: 99%

“…As consumer reliance on the electricity network for heating and transport increases, security of supply concerns are amplified for DNOs. Conventionally, DNOs are required to maintain security of supply through asset management and network reinforcement, making decisions based on a limited measurement set [7,8]. However, as distribution networks continue to evolve and as DNOs transition to distribution system operators, there is already a growing requirement for more flexible approaches to network management as opposed to the conventional 'fit and forget' reinforcement methodology [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Flexible management and decarbonisation of rural networks using multi‐functional battery control

McGarry

Galloway

Hunter

2022

IET Renewable Power Gen

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To support the electrification of heat and transport, distribution network operators are looking to adopt network management solutions which can exploit local flexibility to advance their decarbonisation efforts in line with the evolving management requirements of the network. This paper develops a multi-functional battery control strategy that integrates constraint management with carbon-intensity linked control dispatch -carbon control -to support decarbonisation of rural distribution networks in Scotland by displacing last resort backup diesel generation and facilitating low carbon network balancing in the drive towards self-sustaining local distribution networks. The interplay between the different functionalities is considered to understand the challenges, and opportunities, of adopting multi-functional battery storage as an alternative management solution based on an operational distribution network in Scotland. Case studies are presented which consider network constraints at different times of day and year for various generation, demand and carbon intensity profiles to support this investigation. The findings of this work provide for the near-term, realisation of self-sustaining carbon-neutral local distribution networks that are in keeping with both the operational objectives of incumbent network operators, smart local energy systems and also low carbon policy objectives.

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Section: Model Developmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Flexible management and decarbonisation of rural networks using multi‐functional battery control

McGarry

Galloway

Hunter

2022

IET Renewable Power Gen

Self Cite

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“…As the CI data is recorded at half hour intervals, the granularity of the 5-minute resolution is lost. However, with GB smart meter data recorded at half hourly intervals this level of granularity proves applicable, though literature such as [3] have raised concerns with dynamic control at a half hourly time interval, therefore future research would predominately utilise the 2 day ahead forecasts by NGESO for network flexibility planning. Fig.…”

Section: Case 3 -Dynamic Carbon Controlmentioning

confidence: 99%

“…As consumer reliance on the electricity network increases security of supply concerns are amplified for distribution network operators (DNOs). Conventionally, DNOs are required to maintain security of supply through asset management and network reinforcement, making decisions based on a limited measurement set [3]. However, as distribution networks continue to evolve and as DNOs transition to Distribution System Operators (DSOs), there is a growing requirement for more flexible approaches to network management as opposed to the conventional 'fit and forget' [4] reinforcement methodology [5], [6].…”

Section: Introductionmentioning

confidence: 99%

Decarbonisation of Rural Networks Within Mainland Scotland: In Support of Intentional Islanding

McGarry¹,

Galloway²,

Burt³

2021

The 9th Renewable Power Generation Conference (RPG Dublin Online 2021)

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This paper investigates the role of Battery Energy Storage Systems (BESS) in the decarbonisation of rural networks within mainland Scotland and considers the challenges with the transition to 100% renewable powered networks. In doing so particular attention is placed on the relationship with the wider network and this leads us to consider the use of intentional islanding as a mechanism for supporting distributed grid operation. Geographic Information System (GIS) data provided by Scottish Power Energy Networks is translated for use in power flow modelling software OpenDSS and this forms the basis for the studied MV and LV networks. The modelling approach includes simulating line capacity constraints upstream of the 33/11 kV primary transformer and then analysing the corresponding control response under a series of scenarios for two differing seasonal cases. The findings emphasise the importance of battery sizing and highlight the challenges involved in its use to displace back-up diesel generation but also to provide grid management services and facilitate intentional islanding decisions. The findings support the development of carbon intensity dynamic control as a metric to inform flexibility management decisions and control actions in rural areas for a system wide carbon benefit.

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“…The usefulness of enterprise DERMS for specific DER control use cases is an important topic in the Australian context; these are, after all, expensive systems to implement, and there are practical engineering considerations that need to be understood by distributors. Active network management (ANM) is not currently utilised for most LV networks, and the operating philosophy of control rooms may differ widely depending on the regional geography, legacy systems and assets, and size of the distribution network area [19,20]. Rural networks frequently have no reliable telemetry outside of the population centres.…”

mentioning

confidence: 99%

DER Control and Management Strategies for Distribution Networks: A Review of Current Practices and Future Directions

Smith,

Robinson,

Elphick

2024

Energies

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It is widely recognised that improving the visibility and controllability of distributed energy resources (DERs) within electricity distribution networks will have significant benefits, particularly for the management of low-voltage (LV) and medium-voltage (MV) networks. Much work within the electricity distribution industry is currently focused on improving the visibility of DERs on LV networks. From a control-theoretic perspective, this enables closing the loop between the DER and the control room and enables a shift towards utilising data-driven model-based control strategies for DERs. The result is a system-wide performance that is closer to the theoretical optimal. In the Australian context, several jurisdictions are trialling techniques such as dynamic operating envelopes to enhance DER hosting capacity, using IEEE 2030.5-based architectures, with the implementation of distributed energy resource management (DERMS) systems at the enterprise level still quite limited. While there is significant activity focused on DER behaviour and control techniques by way of inverter grid codes and standards, the core issue of interoperability with distribution management systems (DMSs), market operators or participants, electric vehicles (EVs) or other DERs is still a work in progress. Importantly, this is also an impediment to realising distributed architectures for DER control in the grid. The unique characteristics of Australian distribution networks highlights several challenging problems for DER control and management. The objective of this paper is to provide a broad overview of DER control and management strategies in the Australian context, with an application focus on DER control in distribution network management.

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Improving Network Visibility for Better Integration of Low Carbon Technologies into LV Networks

Cited by 6 publications

References 17 publications

Flexible management and decarbonisation of rural networks using multi‐functional battery control

Flexible management and decarbonisation of rural networks using multi‐functional battery control

Decarbonisation of Rural Networks Within Mainland Scotland: In Support of Intentional Islanding

DER Control and Management Strategies for Distribution Networks: A Review of Current Practices and Future Directions

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