Review of Microgrid Development in the United States and China and Lessons Learned for China

Yu, Jiancheng; Marnay, Chris; Jin, Ming; Cheng, Yao; Liu, Xu; Feng, Wei

doi:10.1016/j.egypro.2018.04.038

Cited by 15 publications

(9 citation statements)

References 6 publications

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“…Then, to promote the concept of integrating localized generation into the centralized generation-based distribution, microgrid technology has been introduced. In 2010, Office of Electricity Delivery and Energy Reliability of the US Department of Energy (DOE)-incorporating the final amendment made in 2017-proposed the definition of Microgrid (MG) as it is a group of interconnected loads and distributed energy resources within clearly defined electrical boundaries that acts as a single controllable entity with respect to the grid, can connect and disconnect from the grid to enable it to operate in both grid-connected or island-mode, considering that a remote MG is a variation of an MG that operates in islanded condition [58]. DOE started their major MG program in 2008, initiating with nine RDSIs (Renewable and Distributed Systems Integration) depicted as green points in Figure 4.…”

Section: Grid Overview Of the United Statesmentioning

confidence: 99%

“…The goals are to establish MG systems of a capacity<10 MW in commercial-scale capable of curtailing outage time of required loads by more than 98% at a cost comparable to the nonintegrated-baseline solutions, while offering more than 20% improvement both in emission reduction and energy efficiency. Research shows control and protection are the significant challenges to meet this goal [58].…”

Section: Grid Overview Of the United Statesmentioning

confidence: 99%

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A Qualitative Study on the United States Internet of Energy: A Step Towards Computational Sustainability

2020

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The burgeoning growth of Big Data not only matures and improves the data management efficiency and useful information extraction techniques, but also motivates the computational science researchers to come up with a new method or solution that can be repurposed for problems across the domain. Computational Sustainability joins this movement for a transferrable computational technique for sustainable development and a better future. Internet-of-energy (IoE)-leveraging IoT to smart grids associated with advanced analytics-is one of the prominent efforts in this regard. This paper presents a qualitative analysis on the elements of the energy and power management ecosystem in the United States. This qualitative study includes the Grid Overview of the United States; Weather and Climate and its impact on the entire energy generation and consumption dynamics; Peak Load Forecasting and its techniques and burgeoning challenges; Variable Renewable Energy, its reliability challenges and how we can take advantage of this variability; Commodity Prices and its criticality; Energy Disaggregation and its impact on consumptionawareness; and Generation Expansion and Decision Analysis. Besides, IoE integration, associated tradeoffs, challenges, research opportunities and transferable computational techniques are addressed in this communication. Furthermore, schematics and quantitative analysis are presented in support of this study.INDEX TERMS Computational sustainability, Internet of Things, smart grid, Internet of Energy, big data, transferable computational techniques.

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Section: Grid Overview Of the United Statesmentioning

confidence: 99%

Section: Grid Overview Of the United Statesmentioning

confidence: 99%

A Qualitative Study on the United States Internet of Energy: A Step Towards Computational Sustainability

2020

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“…According to [26], [44], utilities seem to support the idea of defining new market participants. These are mainly a system integrator or operator of coordination between the microgrids and other forms of distributed energy.…”

Section: E Definition Of New Market Participating Agentsmentioning

confidence: 99%

Proposals for Regulatory Framework Modifications for Microgrid Insertion–The Brazil Use Case

2020

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This work presents a detailed view on how the current policy scenario for the electricity sector in Brazil is prepared to absorb the concept of microgrids in both its technical and commercial scope. The main focus is on how we can move towards consistent and fair regulation in which all parties involved in the distributed generation sector are satisfied with their duties and rights. The current regulation framework does not explicitly tackle microgrids, but allows them to be connected into the distribution grid. However, the adoption of microgrids could be wider and fairer for their stakeholders through deeper technical understanding and consequent proposals for improvements to that regulation. Based on the assumption that the concept of microgrids has benefits for the environment and society, the intention of this work is to contribute to policy analysis that serve to leverage the insertion of microgrids in the context of the Brazilian energy sector. Thus, our main objective is that stakeholders are able to guide themselves and find proper implementation of their projects and realize the technical, societal and commercial benefits. The focus of the article is limited to microgrids inserted within the coverage area of distribution utilities. Therefore, the power grid is available to the connection, as long as it is operational. Nevertheless, the possibilities of islanded operation are explored. More than the availability of the grid under normal operation conditions, raising levels of interaction and cooperation for mutual gain and how the grid-microgrid relationship could be improved is the main focus. Finally, numerical simulations with the analysis of an actual deployment of a microgrid in a residential condominium in Brazil are used to illustrate the impacts of the proposals.

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“…With the proposal of carbon neutrality and carbon peak target, the situation of energy structure transformation in China is gradually expanding, and DC power distribution has strong advantages in reducing the number of converters, improving energy conversion efficiency and transmission capacity, and easily consuming new energy sources, with broad development prospects [1]. In contrast to AC microgrids, DC microgrids lack a natural over-zero point.…”

Section: Introductionmentioning

confidence: 99%

The Capacity Configuration of Energy Storage System in DC Microgrid with Source-storage Integration

Wei,

Li,

Guo

et al. 2023

J. Phys.: Conf. Ser.

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The occurrence of a fault in a DC microgrid can significantly jeopardize the system’s safe operation, making it a critical area of research for scholars. One key focus of this research is on developing methods to suppress the fault current, which has become a research hotspot for many scholars. Each distributed power source is connected to DC microgrid through a battery storage system to form a source-storage integration DC microgrid structure, which can have good fault current control ability and obvious improvement effect on reducing the protection technology difficulty of DC microgrid and enhancing the flexibility of distribution network. Compared with the traditional DC microgrid structure, the source-storage integration DC microgrid, whose battery storage system is changed from centralized to distributed, will smooth fluctuations in distributed power output by modifying energy storage planning principles, and also maintain bus voltage and realize fault current control with distributed power sources. Capacity planning principles for energy storage systems proposed in this paper were studied for DC microgrids with source-storage integration, and the total energy storage capacity and power under two DC microgrid structures were compared and analyzed with a scenic complementary power station as an example. Although a DC microgrid with a changed grid structure would require less than a 20% increase in the overall capacity and power of the energy storage system, according to the calculation results, the operation of the microgrid can be significantly improved, the flexibility of power dispatching of the distribution network was enhanced, and the investment cost of fault protection was reduced. Research into the capacity configuration of energy storage systems has demonstrated that DC microgrids with integrated source and storage capabilities hold significant engineering application value and practical significance.

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Review of Microgrid Development in the United States and China and Lessons Learned for China

Cited by 15 publications

References 6 publications

A Qualitative Study on the United States Internet of Energy: A Step Towards Computational Sustainability

A Qualitative Study on the United States Internet of Energy: A Step Towards Computational Sustainability

Proposals for Regulatory Framework Modifications for Microgrid Insertion–The Brazil Use Case

The Capacity Configuration of Energy Storage System in DC Microgrid with Source-storage Integration

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