Modelling and Simulation Approaches for Local Energy Community Integrated Distribution Networks

Rana, Rubi; Berg, Kjersti; Degefa, Merkebu Zenebe; Löschenbrand, Markus

doi:10.1109/access.2022.3140237

Cited by 23 publications

(6 citation statements)

References 62 publications

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“…to modify the load profile as seen from the DSO's perspective. A review of energy communities modelling and simulation approaches is presented in [10], and a case study is presented in [11]. In [12], the authors presented a model to determine the joint expansion planning of distributed generation and the distribution grid considering the impact of energy storage systems and price-dependent demand response programs.…”

Section: Lec Operatormentioning

confidence: 99%

Economic Assessment of Integrating Fast-Charging Stations and Energy Communities in Grid Planning

Rana¹,

Sperstad²,

Torsæter³

et al. 2022

Preprint

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<p>Distribution grid companies and distribution system operators (DSOs) still mostly follow a traditional framework for grid planning. Such frameworks have so far served DSOs well in the economic assessment and cost-benefit analysis of passive measures, such as grid reinforcement. However, the development towards active distribution grids requires DSOs to also be able to assess an extended set of active measures. To this aim, this paper extends and implements a general planning framework for active distribution grids that builds upon the well-proven traditional framework. The methodology integrated in the framework includes: 1) decoupled models for i) operation with active measures and ii) optimal grid investment, and 2) methods for economic assessment considering active measures from both i) a DSO cost-benefit analysis perspective and ii) a willingness-to-pay perspective. In this paper, operational models are integrated for two examples of active measures, namely the use of fast-charging stations (FCS) and local energy communities (LEC). The methodology is demonstrated in a long-term grid planning case study for a realistic Norwegian medium voltage distribution system. For this case, grid planning with FCS as an active measure reduces the present value of grid investment costs by 70% compared with a passive grid planning strategy. The results also demonstrate how the methodology can be used in negotiating the price of active measures between the DSO and distribution system actors such as LEC and FCS operators.</p>

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Section: Lec Operatormentioning

confidence: 99%

Economic Assessment of Integrating Fast-Charging Stations and Energy Communities in Grid Planning

Rana¹,

Sperstad²,

Torsæter³

et al. 2022

Preprint

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“…While there is still further research needed related to real-time simulation of the MGs, significant progress has been made in the literature which can be categorized into four aspects: 1) the design and modeling of MG components to achieve real-time simulation [13]- [20]; 2) the utilization of existing commercial real-time simulators [21]- [24]; 3) the development of real-time virtual test bed for MGs [25]- [27]; 4) novel computational approaches for distribution grids [29], [30]. Real-time simulation prefers the models with lower computational burden, and therefore, the relatively simpler models or equivalent dynamic models have been developed.…”

Section: Introductionmentioning

confidence: 99%

Faster-Than-Real-Time Hardware Emulation of Transients and Dynamics of a Grid of Microgrids

Cao

Lin

Dinavahi

2023

IEEE Open J. Power Energy

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Enhanced environmental standards are leading to an increasing proportion of microgrids (MGs) being integrated with renewable energy resources in modern power systems, which brings new challenges to simulate such a complex system. In this work, comprehensive modeling of a grid of microgrids for faster-than-real-time (FTRT) emulation is proposed, which can be utilized in the energy control center for contingencies analysis and dynamic security assessment. Electromagnetic transient (EMT) modeling is applied to the microgrid in order to reflect the detailed device processes of the converter and renewable energy sources, while the AC grid utilizes the transient stability modeling to reduce the computational burden and obtain a high acceleration value over real-time execution. Consequently, a dynamic power injection interface is proposed for the coexistence of the two simulation types. The reconfigurability and parallelism of the field-programmable gate arrays (FPGAs) enable the whole system to be executed in FTRT mode with 51 times acceleration over real-time. Meanwhile, three case studies are emulated and the results are validated by the off-line simulation tool Matlab/Simulink ® .

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“…With the simultaneous maturing of information, communication and digitalisation tools, a closer interaction between grid operators, end users and other system agents is allowing a more consumer-centric energy system. Local energy communities have emerged as a promising concept for better coordinating this interaction [2,3], where members can collaborate to ensure common economic, environmental, and social benefits while also providing system services [4].…”

Section: Introductionmentioning

confidence: 99%

Local electricity market pricing mechanisms' impact on welfare distribution, privacy and transparency

Dynge¹,

Berg²,

Bjarghov³

et al. 2023

Preprint

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<p>Local energy communities and electricity markets have emerged as possibilities for interaction among prosumers. A substantial effort has been invested into creating efficient pricing mechanisms for various market arrangements, all of which take into consideration distinct characteristics of local electricity trading. However, since they are all evaluated in terms of various systems and market conditions, it is challenging to directly compare the mechanisms. In this research, three well-established pricing mechanisms from the literature are systematically compared and evaluated under identical settings on their influence on welfare distribution across various market participant groups, privacy protection, transparency and complexity level. According to the findings, the supply-demand ratio pricing system leads to the lowest costs for consumers and is also the most privacy compliant and transparent. Furthermore, prosumers obtain the highest cost-savings through the consensus alternating direction method of multipliers pricing mechanism, whereas the equilibrium pricing mechanism performs best regarding economic fairness. The aim of this article is to provide insight into the performance of different pricing mechanisms to energy regulators and local electricity market facilitators. The comparative analysis should aid in making informed decisions on the implementation of local electricity markets. </p>

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Modelling and Simulation Approaches for Local Energy Community Integrated Distribution Networks

Cited by 23 publications

References 62 publications

Economic Assessment of Integrating Fast-Charging Stations and Energy Communities in Grid Planning

Economic Assessment of Integrating Fast-Charging Stations and Energy Communities in Grid Planning

Faster-Than-Real-Time Hardware Emulation of Transients and Dynamics of a Grid of Microgrids

Local electricity market pricing mechanisms' impact on welfare distribution, privacy and transparency

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