Generation-Storage Coordination for Islanded DC Microgrids Dominated by PV Generators

Xia, Yanghong; Yu, Miao; Yang, Pengcheng; Peng, Yonggang; Wei, Wei

doi:10.1109/tec.2018.2860247

Cited by 90 publications

(65 citation statements)

References 24 publications

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“…Usually, the dc bus voltage will change in a reasonable range (like ±10%) to realize some coordination function like generation-storage coordination, ac/dc microgrids coordination and so on [28]- [29]. In this case, we mainly study the transient stability introduced by the voltage changes.…”

Section: A Case1: Voltage Changesmentioning

confidence: 99%

New Analysis Framework for Transient Stability Evaluation of DC Microgrids

Xia

Wei

et al. 2020

IEEE Trans. Smart Grid

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Section: A Case1: Voltage Changesmentioning

confidence: 99%

New Analysis Framework for Transient Stability Evaluation of DC Microgrids

Xia

Wei

et al. 2020

IEEE Trans. Smart Grid

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“…Moreover, [19] elaborates a different strategy applying SoC based droop control that sums a factor to complement the voltage reference from droop management, allowing the balancing process in the dc MG.…”

Section: Introductionmentioning

confidence: 99%

Management and Equalization of Energy Storage Devices for DC Microgrids Using a SoC-Sharing Function

et al. 2020

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This paper presents a method for Energy Storage Systems (ESSs) equalization and energy management in dc microgrids (MGs) with slow dynamic sources, such as Fuel Cells (FCs). The three main features of this method are the ESSs equalization, the energy management between the ESSs and the FC, and the ability to suppress fast transients of load, preventing damages in the FC. The equalization is performed using a State of Charge (SoC)-Sharing Function, which is based on a Sigmoid Function (SF). The SoC-Sharing Function is designed similarly to the droop controller, therefore, it is suitable for operation in droop based MGs. Additionally, the ability to suppress fast transients of load is performed by adding a low pass filter in the FC control loop. The main advantages of this method are the SF smooth behavior and the lack of need for a high-speed link of communication between the sources. To evaluate the MG stability, the Lyapunov's Indirect Method is applied in the MG model considering different scenarios varying the SoC and load connected to the dc-link. Finally, the model is validated by comparing simulation and experimental results supplied by a lab-scale prototype. INDEX TERMS Energy storage system, dc microgrid, equalization method, fuel cell, energy management. MAURICIO BICZKOWSKI received the B.S. degree in electrical engineering and the degree of specialist in energy efficiency from the Fed

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“…This paper also emphasis the study of critical transition period of a microgrid for its stable operation. In Reference, the author presented decentralized generation‐storage co‐ordination controlled strategy for islanded DC microgrid based on DC bus voltage signaling. The controller strategy proposed in this paper solves the problems of rise in DC bus voltage, overcharge, and over discharge of the storage elements.…”

Section: Introductionmentioning

confidence: 99%

Energy management of distributed renewable energy sources for residential DC microgrid applications

Kathiresan¹,

Natarajan²,

Gnanavadivel³

2019

Int Trans Electr Energ Syst

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This paper proposes a low voltage (400 Vdc) distributed renewable energy fed DC microgrid structure for a residential system, which uses DC voltage for the electronic appliances. The distributed energy sources—solar photovoltaic (PV) and wind energy are considered as input sources. The output power from these sources is stochastic in nature. An efficient energy management and switching circuit is designed to control the power flow from the sources with a high gain DC‐DC converter as the main component. The output power regulation is achieved by means of controlling duty ratios of the switches in the proposed high gain converter through PI controller. The control algorithm effectively converts the unregulated DC power from the solar PV and wind into regulated DC for driving a DC load connected in DC‐microgrid. The energy management and switching circuits account for seamless operation of the DC microgrid under various modes when one or all the sources and loads are connected directly at the DC grid link. The designed energy management and switching circuit also ensures the power balancing in the proposed system. The proposed DC microgrid structure is simulated using MATLAB Simulink. The performance of the proposed high gain converter for the DC grid link voltage regulation is analyzed under source power variation and dynamic changes in load for various operating conditions. The proposed DC microgrid structure is validated using simulation results.

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Generation-Storage Coordination for Islanded DC Microgrids Dominated by PV Generators

Cited by 90 publications

References 24 publications

New Analysis Framework for Transient Stability Evaluation of DC Microgrids

New Analysis Framework for Transient Stability Evaluation of DC Microgrids

Management and Equalization of Energy Storage Devices for DC Microgrids Using a SoC-Sharing Function

Energy management of distributed renewable energy sources for residential DC microgrid applications

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