A microgrid cluster structure and its autonomous coordination control strategy

Zhou, Xiaoping; Zhou, Leming; Chen, Yandong; Guerrero, Josep M.; Luo, An; Wu, Wenhua; Yang, Ling

doi:10.1016/j.ijepes.2018.02.031

Cited by 64 publications

(32 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All the MGs in IMMGs are interconnected and can exchange, share energy among themselves and with the macrogrid through power exchange lines. Thus they form an interconnected network system with multiple AC and DC microgrids with different topologies [10], [16], [22]. In addition, the distributed network operator (DNO) supervises the power-flow control and market operation, such as buying and selling active and reactive power to the grid, and mitigating the possible network congestion for transferring energy in the trade.…”

Section: Topologies Of Interconnected Multi-microgridsmentioning

confidence: 99%

“…IMMGs have many obvious advantages. First, IMMGs have good economic characteristics [7], [9], [13]- [15], no matter in the grid-connected mode [3], [16], [17] or in the islanded mode [1], [4], [18], [19]. This is because in IMMGs, the energy sharing among the MGs allows the MGs to satisfy their power demands with their own cheaper, renewable energy sources.…”

Section: Introductionmentioning

confidence: 99%

“…With the ongoing large-scale deployment of renewable energy resources, the interconnected MGs in the distribution network will effectively improve the utilization of renewable energy. IMMGs also reduce the burden on the main grid (because the MGs facilitate energy trading among themselves), mitigate the congestion in distribution lines, and improve the reliability of themselves and the main power grid [16], [23]- [26].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Survey of Energy Management in Interconnected Multi-Microgrids

et al. 2019

View full text Add to dashboard Cite

An interconnected multi-microgrids (IMMGs) system takes advantage of various complementary power sources and effectively coordinates the energy sharing/trading among the MGs and the main grid to improve the stability, reliability, and energy efficiency of the system. The core of this structure is to achieve the optimal distribution of energy sharing through proper strategies. However, the volatility and intermittent characteristics of renewable resources, time-varying loads in the MGs, their correlated power generations, and the coupled energy among the MGs during energy trading, all bring about new challenges to achieving a stable operation and optimal scheduling in the power system. Many solutions have been proposed to solve these problems. In this paper, we provide an overview of the current energy management systems (EMS) in IMMGs, focusing on the IMMG structure, EMS objectives, timescales, and scheduling optimization structure. We then provide a review of the distributed optimization algorithms in IMMGs. We conclude this survey with a discussion of future directions. INDEX TERMS Smart grid, microgrid (MG), interconnected multi-microgrids (IMMG), energy sharing, energy management.

show abstract

Section: Topologies Of Interconnected Multi-microgridsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Survey of Energy Management in Interconnected Multi-Microgrids

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Due to system improvement, the hybrid structure can be flexible and provide more efficiency on the system but can have a complex architecture which is caused by different voltage system and power configuration [20], [258]. Besides, a microgrid clustering architecture is considered as an advanced hybrid microgrid which contains multiple microgrids within a specific range of distance with one or different power configuration [259], [260].…”

Section: Microgrid Systemmentioning

confidence: 99%

Overview of the Optimal Smart Energy Coordination for Microgrid Applications

Mbungu¹,

Naidoo²,

Bansal³

et al. 2019

IEEE Access

View full text Add to dashboard Cite

This paper describes an overview of the optimal energy coordination/management approaches for microgrids. The article presents the smart grid environment in conjunction with their technologies into the applications of a microgrid when the energy coordination aims to create power flow stability between the generation and consumption of the electricity. This energy equilibrium is made regardless of a power grid complexity that can contain diverse load demands and distributed energy resources (DERs), including renewable energy system (RES), energy storage system (ESS), electric vehicle (EV), etc. A microgrid often contains an energy mix system that requires three control levels, namely primary, secondary and tertiary, to optimize the energy cost and behavior of the system operation and exploitation. Based on several DERs, a microgrid can operate in island mode or be connected to the main grid. The energy coordination for both features is to deal with the energy resources uncertainty, the climate impact, to reduce atmospheric pollution deriving from the conventional power grid, and the energy demand growth. Through the smart grid technology, the optimization approaches of this coordination have brought several improvements into the electrical system. Thus, an overview of an intelligent energy management system for microgrid applications is intensively detailed to structure the implementation strategies which aim to coordinate the energy flow of an electrical system optimally.

show abstract

“…The feasibility of DC interconnected MMGs is investigated in [19][20][21][22]. In the authors' previous work, the hybrid unit of common coupling (HUCC), which provides both AC and DC interfaces, is designed for MMGs in replacement of the conventional point of common coupling (PCC) [13].…”

Section: System Architecturementioning

confidence: 99%

A Multi-Layer Coordinated Control Scheme to Improve the Operation Friendliness of Grid-Connected Multiple Microgrids

Huang

Tai

et al. 2019

Energies

View full text Add to dashboard Cite

Multiple microgrids (MMGs) are clusters of interconnected microgrids that have great potential for integrating a large number of distributed renewable energies (DREs). The grid-connected control scheme is important for the exploration of the MMGs’ operation potential. In this paper, a multi-layer coordinated control scheme for DC interconnected MMGs is proposed to optimize their operation and improve their operation friendliness. An adaptive droop control method is designed for the DC connection interfaces of the MMGs to adaptively manage the power exchange among the sub-microgrids. Meanwhile, the strategy of power fluctuation suppression is developed for the hybrid energy storage system (HESS) in the MMGs. The coordination among the sub-microgrids and the HESS is then clarified by the proposed control scheme to optimize the AC tie-line power and make the MMGs a highly coordinated collective. A case study is performed in PSCAD/EMTDC based on the demonstration project in Guangxi, China. The results show that the proposed multi-layer coordinated control scheme realizes the coordinated operation of the MMGs, fully exploits the complementarity of the MMGs, and improves the operation friendliness among the sub-microgrids and the utility grid. Thus the integration and utilization of a large number of DREs is enhanced.

show abstract

A microgrid cluster structure and its autonomous coordination control strategy

Cited by 64 publications

References 39 publications

A Survey of Energy Management in Interconnected Multi-Microgrids

A Survey of Energy Management in Interconnected Multi-Microgrids

Overview of the Optimal Smart Energy Coordination for Microgrid Applications

A Multi-Layer Coordinated Control Scheme to Improve the Operation Friendliness of Grid-Connected Multiple Microgrids

Contact Info

Product

Resources

About