A Heuristic Operation Strategy for Commercial Building Microgrids Containing EVs and PV System

Liu, Nian; Chen, Qifang; Liu, Jie; Lu, Xihong; Li, Peng; Lei, Jinyong; Zhang, Jianhua

doi:10.1109/tie.2014.2364553

Cited by 226 publications

(99 citation statements)

References 20 publications

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“…First, the islanding situation of the MGs is a possible scenario for the operation, it would be interesting to consider the island operation and analyze the behavior by using this framework. Second, the types of DERs or other components can be involved, such as energy storage [34], fuel cell [30], heat pump [35], and electric vehicles [36].…”

Section: Discussionmentioning

confidence: 99%

Multi-Party Optimal Operation for Distribution Networks Containing DC-Linked Microgrids: Integrated Network Reconfigurations and Energy Sharing

Liu

Guo

2017

Applied Sciences

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Abstract:With the development of Microgrids (MG) in distribution networks, how to coordinate the reconfiguration of distribution networks with the energy sharing of Direct Current (DC)-linked multi-MG is an unsolved problem. In this paper, a multi-party optimization framework is proposed, the involving parties include the Distribution Network Operator (DNO), the Multi-MG Coalition Operator (MCO), and the MG operator. For the DC-linked MGs, the MCO is obligated to coordinate the energy sharing, a stochastic optimal scheduling model for the MG coalition is formulated, considering the uncertainties of Photovoltaic (PV), Wind Turbines (WT), and load power. Moreover, a billing mechanism is designed to distribute the cost of each MG participated in the energy sharing. For the distribution network, an event triggered dynamic reconfiguration model is proposed. Based on the scheduling results of MCO, the decisions of switch operations are finally co-decided by the expected exchanging power of the MGs and the real-time errors caused by uncertainty factors. Finally, a modified IEEE-33 nodes distribution system are used to test and verify the effectiveness of the method.

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Section: Discussionmentioning

confidence: 99%

Multi-Party Optimal Operation for Distribution Networks Containing DC-Linked Microgrids: Integrated Network Reconfigurations and Energy Sharing

Liu

Guo

2017

Applied Sciences

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“…Already in 2008, for example, an optimization approach is proposed for optimal system design for microgrids in commercial buildings [14]. More recent studies focus on introducing a heuristic operation strategy for a commercial building including a PV system and electric vehicle charging stations [15] or providing an efficient energy management for microgrids including PV prosumers based on a Stackelberg game approach [16]. Theoretically, there are no barriers for further spreading renewable energy usage in buildings, but in practice regulatory obstacles do often prevent such developments, notably in the private sector.…”

Section: State Of the Artmentioning

confidence: 99%

Economic Assessment and Business Models of Rooftop Photovoltaic Systems in Multiapartment Buildings: Case Studies for Austria and Germany

Fina

Fleischhacker

Auer

et al. 2018

Journal of Renewable Energy

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This paper analyses the profitability and business models of shared, nonsubsidized PV systems' usage in multiapartment buildings in Austria in the context of legislative amendments which came into force in July 2017. In addition, it compares the Austrian results with those of Germany, where significantly higher retail electricity prices determine the profitability benchmark. To that end, a multiobjective optimization model is developed for the optimal dimensioning of PV systems and energy storage facilities in keeping with different end user objectives, ranging from minimizing annual electricity costs to maximizing self-consumption. The results show that the profitability of shared use of nonsubsidized PV systems is marginal in Austria. This means that, based on individual apartment load profiles, the profitability gap ranges between 0 and 40 euros per apartment, whereas the consideration of the building as total load leads to a small cost-saving potential of about 90 euros for the whole building in the best case and thus profitability. In contrast, significant profitability of shared PV systems in multiapartment buildings can be achieved in Germany, where the renewable energy surcharge results in high retail electricity prices. At present, different business models, accounting and billing concepts, are being tested in these countries to learn about the best-practice concepts.

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“…Renewable energy resources play an important role in MG (i.e., wind turbine (WT) and photovoltaic (PV)) [13]. They are considered as uncontrollable distributed energy resources whose output power is related to the environment.…”

Section: Distributed Energy Resourcementioning

confidence: 99%

Distributed energy management for interconnected operation of combined heat and power-based microgrids with demand response

Liu

Jie

Wang

2017

J. Mod. Power Syst. Clean Energy

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From the perspective of transactive energy, the energy trading among interconnected microgrids (MGs) is promising to improve the economy and reliability of system operations. In this paper, a distributed energy management method for interconnected operations of combined heat and power (CHP)-based MGs with demand response (DR) is proposed. First, the system model of operational cost including CHP, DR, renewable distributed sources, and diesel generation is introduced, where the DR is modeled as a virtual generation unit. Second, the optimal scheduling model is decentralized as several distributed scheduling models in accordance with the number of associated MGs. Moreover, a distributed iterative algorithm based on subgradient with dynamic search direction is proposed. During the iterative process, the information exchange between neighboring MGs is limited to Lagrange multipliers and expected purchasing energy. Finally, numerical results are given for an interconnected MGs system consisting of three MGs, and the effectiveness of the proposed method is verified.

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A Heuristic Operation Strategy for Commercial Building Microgrids Containing EVs and PV System

Cited by 226 publications

References 20 publications

Multi-Party Optimal Operation for Distribution Networks Containing DC-Linked Microgrids: Integrated Network Reconfigurations and Energy Sharing

Multi-Party Optimal Operation for Distribution Networks Containing DC-Linked Microgrids: Integrated Network Reconfigurations and Energy Sharing

Economic Assessment and Business Models of Rooftop Photovoltaic Systems in Multiapartment Buildings: Case Studies for Austria and Germany

Distributed energy management for interconnected operation of combined heat and power-based microgrids with demand response

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