Cooperation between Two Micro-Grids Considering Power Exchange: An Optimal Sizing Approach Based on Collaborative Operation

Huang, Yuansheng; Yang, Lei; Liu, Shijian; Wang, Guangli

doi:10.3390/su10114198

Cited by 8 publications

(6 citation statements)

References 41 publications

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“…The goal was to reduce MG overall operational costs by formulating the problem as a two-stage stochastic optimization problem. The authors of [7], have proposed a cooperation model between MGs in the presence of energy storage systems to fully exploit the non-dispatchable capacity and potential of distributed generators. Therefore, minimizing the operational costs.…”

Section: A Brief Literature Reviewmentioning

confidence: 99%

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Modeling the Energy Cooperation between Regionally Interconnected Aggregators using Bilateral Agreements

Ullah¹,

Mirjat

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Traditional centralized power dispatching systems have inherent limitations in dealing with the increasing penetration of variable renewable energy generation in distribution networks. This study presents a flexible energy exchange mechanism for regionally interconnected aggregators in regards to VRE penetration. Direct energy exchange between neighboring aggregators is proposed as a promising method of maximizing social welfare (i.e. maximization of end-users benefits and minimization of energy costs). The main idea of the proposed mechanism is to develop a parallel energy exchange cooperation between physically connected aggregators ensuring operational efficiency of the power systems at a local level. Given that neighboring aggregators may have differences in their energy generation and usage patterns these differences can be utilized to bridge the mismatch of each other’s supply shortage. An operational scenario of regionally interconnected aggregators is presented and investigated. The initial simulation results have illustrated the effectiveness and reliability of the proposed model and method.

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Section: A Brief Literature Reviewmentioning

confidence: 99%

“…Constraint ( 6) represents the min/max limits of the aggregators power selling through neighboring transactions points at time t while constraint (7) represents the min/max limits of the aggregators power purchasing through neighboring transactions points at time t.…”

Section: Constraintsmentioning

confidence: 99%

Modeling the Energy Cooperation between Regionally Interconnected Aggregators using Bilateral Agreements

Ullah¹,

Mirjat

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…The capacity of the DC systems together with the energy storage systems (ESS) to guarantee an easy control of the networks allows us to propose control strategies for distribution networks with multiple DGs that share resources cooperatively [24]. The possibility of sharing resources, in a hybrid system connected to a MG, and reducing the cost of purchasing power from the distribution network is explored in [25].…”

Section: Dc-mg Controlmentioning

confidence: 99%

“…A solution to this problem is the establishment of microgrids that link different consumers and individual generators in an electrical network. The viability of a MG depends on economic factors to be a sustainable option [24].…”

Section: Contributions and Paper Layoutmentioning

confidence: 99%

Improving the Sustainability of Self-Consumption with Cooperative DC Microgrids

et al. 2019

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The development of microgrids is of great interest to facilitate the integration of distributed generation in electricity networks, improving the sustainability of energy production. Microgrids in DC (DC-MG) provide advantages for the use of some types of renewable generation and energy storage systems, such as batteries. In this article, a possible practical implementation of an isolated DC-MG for residential use with a cooperative operation of the different nodes is proposed. The main criterion is to achieve a very simple design with only primary control in a residential area. This application achieves a simple system, with low implementation costs, in which each user has autonomy but benefits from the support of the other users connected to the microgrid, which improves its reliability. The description of the elements necessary to create this cooperative system is one of the contributions of the work. Another important contribution is the analysis of the operation of the microgrid as a whole, where each node can be, arbitrarily, a consumer or an energy generator. The proposed structures could promote the use of small distributed generation and energy storage systems as the basis for a new paradigm of a more sustainable electricity grid of the future.

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“…Another option to improve self-sufficiency of PV systems is shifting the consumption of deferrable loads by demand-side management to periods with PV-surpluses [15,16]. The creation of cooperative microgrids with different SAPV generators has also been proposed [17,18] to address this problem.…”

Section: Introductionmentioning

confidence: 99%

Accurate Sizing of Residential Stand-Alone Photovoltaic Systems Considering System Reliability

et al. 2020

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In rural areas or in isolated communities in developing countries it is increasingly common to install micro-renewable sources, such as photovoltaic (PV) systems, by residential consumers without access to the utility distribution network. The reliability of the supply provided by these stand-alone generators is a key issue when designing the PV system. The proper system sizing for a minimum level of reliability avoids unacceptable continuity of supply (undersized system) and unnecessary costs (oversized system). This paper presents a method for the accurate sizing of stand-alone photovoltaic (SAPV) residential generation systems for a pre-established reliability level. The proposed method is based on the application of a sequential random Monte Carlo simulation to the system model. Uncertainties of solar radiation, energy demand, and component failures are simultaneously considered. The results of the case study facilitate the sizing of the main energy elements (solar panels and battery) depending on the required level of reliability, taking into account the uncertainties that affect this type of facility. The analysis carried out demonstrates that deterministic designs of SAPV systems based on average demand and radiation values or the average number of consecutive cloudy days can lead to inadequate levels of continuity of supply.

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Cooperation between Two Micro-Grids Considering Power Exchange: An Optimal Sizing Approach Based on Collaborative Operation

Cited by 8 publications

References 41 publications

Modeling the Energy Cooperation between Regionally Interconnected Aggregators using Bilateral Agreements

Modeling the Energy Cooperation between Regionally Interconnected Aggregators using Bilateral Agreements

Improving the Sustainability of Self-Consumption with Cooperative DC Microgrids

Accurate Sizing of Residential Stand-Alone Photovoltaic Systems Considering System Reliability

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