Increasing Self-Sufficiency of Energy Community by Common Thermal Energy Storage

Doroudchi, Elahe; Khajeh, Hosna; Laaksonen, Hannu

doi:10.1109/access.2022.3195242

Cited by 21 publications

(7 citation statements)

References 32 publications

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“…Taking into account the complementary nature of energy storage charging and discharging requirements for power fluctuation mitigation among microgrids, the actual net charging and discharging power requirements are calculated. Shared energy storage is then employed to meet this net demand, which is demonstrated to be less than the sum of the absolute values of individual microgrid storage requirements [8]. This approach aims to significantly improve the efficiency of energy storage utilization.…”

Section: A Motivationmentioning

confidence: 99%

Optimizing Grid-Connected Multi-Microgrid Systems With Shared Energy Storage for Enhanced Local Energy Consumption

Lu,

Zheng,

et al. 2024

IEEE Access

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In response to the growing demand for sustainable and efficient energy management, this paper introduces an innovative approach aimed at enhancing grid-connected multi-microgrid systems. The study proposes a strategy that involves the leasing of shared energy storage (SES) to establish a collaborative micro-grid coalition (MGCO), enabling active participation in the dispatching operations of active distribution networks (ADNs). A hierarchical framework wherein the ADN assumes the role of the central orchestrator is developed, while the MGCO and SES operators (SESO) function as responsive entities within a single-leader multi-follower game optimization model. The ADN leader implements timeof-use (TOU) pricing mechanisms as a strategic incentive to encourage active engagement from the MGCO and SESO followers in peak regulation dispatch activities. In response to these TOU policies, the followers implement a two-stage dispatch optimization strategy. The first stage is dedicated to optimizing energy storage utilization. Within this phase, each microgrid meticulously fine-tunes its energy storage charging and discharging strategies with the primary objectives of mitigating power fluctuations, reducing load variance, minimizing energy storage costs, and facilitating on-demand leasing of energy storage resources. Subsequently, energy storage resources are pooled and shared to harness collective benefits and enhance alliance-wide energy utilization. Emphasis is placed on prioritizing the integration of renewable energy sources, promptly responding to peak demand regulation and scheduling, maximizing overall benefits, and equitably distributing cooperative advantages among alliance members. To substantiate the effectiveness of this comprehensive methodology, the paper presents illustrative results that provide compelling evidence of its potential to facilitate the seamless integration of microgrids, shared energy storage, and active distribution networks.

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Section: A Motivationmentioning

confidence: 99%

Optimizing Grid-Connected Multi-Microgrid Systems With Shared Energy Storage for Enhanced Local Energy Consumption

Lu,

Zheng,

et al. 2024

IEEE Access

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“…The issue of the thermal self-sufficiency of energy communities was dealt with by the authors in [102], who proposed joint heat storage. Photovoltaic installations of community members were used to generate heat.…”

Section: Self-sufficient Systems Based On Pv and Energy Storagementioning

confidence: 99%

Trends in Locally Balanced Energy Systems without the Use of Fossil Fuels: A Review

2023

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In recent years, the idea of the operation of energy systems (power systems, heating systems) has changed significantly. This paper is an overview of locally balanced energy systems without the use of fossil fuels. The paper justifies the concept of local energy balancing in a new energy system that does not use fossil fuels (coal, natural gas, and crude oil), based on European Union guidelines and formal documents as well as the literature on the subject. In this context, the issue of local energy self-sufficiency, utilizing renewable energy sources, as well as the concept of local smart grids based on innovative market mechanisms are raised. Attention is also paid to technical issues with regard to locally balanced energy systems, in particular photovoltaic sources and energy storage. Challenges related to the use of electrical protection in networks with many sources of energy are described. In such networks, the power flow is not in one direction only. Moreover, the selection of protections is problematic due to the distribution of short-circuit currents. Additionally, earth fault currents in such networks may be distorted, and this negatively affects the operation of residual current devices. The basic nomenclature describing locally balanced systems has been sorted out as well. Finally, possible future research paths in the field of creating locally balanced systems without the use of fossil fuels are presented.

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“…In addition to the turbine, a DFIG generator is used to produce energy, where the energy produced is reactive and active power. The output power of the generator can be expressed by equation (6).…”

Section: Mrwt Systemmentioning

confidence: 99%

“…energy such as wind power [1] and solar power [2]. Mechanical power is one of the most important sources used in generating electrical energy, where several types of power sources can be used to obtain mechanical energy, such as wind energy [3], hydropower [4], nuclear energy [5], thermal energy [6],...etc. Wind turbine (WT) is one of the most prominent energies that has spread in recent years for several reasons, including simplicity, low cost and the resulting energy return [7].…”

mentioning

confidence: 99%

Comparative Study of Synergetic Controller with Super Twisting Algorithm for Rotor Side Inverter of DFIG

2023

ijSmartGrid

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This work presents the implementation of direct active and reactive powers control (DARPC) with nonlinear controllers (synergetic controller (SC) and super twisting algorithm (STA)) for the rotor side converter of doubly-fed induction generator (DFIG) connected to the multi-rotor wind turbine (MRWT) system, as an alternative to the DARPC technique with STA controllers. In this work, DARPC is based on the nonlinear controllers and space voltage vector technique. Modified space vector modulation (MSVM) technique is applied to compose fixed-switching-frequency DARPC strategy, which replaces the switching table and hysteresis comparators technique in classical DARPC technique. DFIG's mathematics model and the two control techniques are given, and the simulations of DFIG based on DARPC-SC and DARPC-STA are made separately by Matlab software. In this work, two tests are proposed in order to verify the behavior of the proposed strategies, where the comparison between the strategies is in several aspects such as current quality, traceability of references, robustness, and ripple ratio. Simulation results show that the strategy based on synergetic control is better in terms of response time, ripple ratio, and electric current quality compared to other strategies.

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Increasing Self-Sufficiency of Energy Community by Common Thermal Energy Storage

Cited by 21 publications

References 32 publications

Optimizing Grid-Connected Multi-Microgrid Systems With Shared Energy Storage for Enhanced Local Energy Consumption

Optimizing Grid-Connected Multi-Microgrid Systems With Shared Energy Storage for Enhanced Local Energy Consumption

Trends in Locally Balanced Energy Systems without the Use of Fossil Fuels: A Review

Comparative Study of Synergetic Controller with Super Twisting Algorithm for Rotor Side Inverter of DFIG

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