Distributed virtual inertia control and stability analysis of dc microgrid

Xiao-hong, Zhu; Xie, Zhiyun; Jing, Shuzhi; Ren, Hui

doi:10.1049/iet-gtd.2017.1520

Cited by 60 publications

(33 citation statements)

References 19 publications

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“…Voltage and current double closed-loop control is a common control method [12,18]. And transfer function of voltage and current double closed-loop control of DC microgrid given by…”

Section: Virtual Inductance Control Strategymentioning

confidence: 99%

“…Obviously, the DC microgrid bus voltage can quickly be restored to a stable state. Compared with the virtual capacitance control strategy based on droop control (the gray curve in the figure) in [18], the proposed control strategy in this paper can reduce the adjustment time and make the system reach the balance faster. In addition, the control strategy can reduce the bus voltage fluctuation during the regulation process.…”

Section: Simulation Verificationmentioning

confidence: 99%

“…But it was not applied to an island mode. And from the point of inertia, a corresponding virtual capacitance control strategy was established by Zhu et al [18]. And due to the increase of inertia by virtual capacitance, the robustness of system is increased in the face of CPLs.…”

Section: Introductionmentioning

confidence: 99%

“…Compared with the virtual capacitance strategy in [18], the method proposed in this paper will be more smooth and fast in the process of adjustment. (3) The other salient feature of this paper is that starting from the transmission line, the strategy can be applied to a wide range of situations.…”

Section: Introductionmentioning

confidence: 99%

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Research on Virtual Inductive Control Strategy for Direct Current Microgrid with Constant Power Loads

et al. 2019

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In order to improve the stability of direct current (DC) microgrid with constant power loads, a novel virtual inductive approach is proposed in this paper. It is known that the negative impedance characteristic of constant power loads will lead to DC bus voltage fluctuation, which will be more serious when they integrate into the DC microgrid though a large transmission line inductive. For the convenience of analysis, a simplified circuit model of the system is obtained by modeling the distributed resources. Unlike the existing control strategies, the proposed control strategy constructs a negative inductance link, which helps to counteract the negative effects of the line inductive between the power source and the transmission line. Detailed performance comparison of the proposed control and virtual capacitance are implemented through MATLAB/simulink simulation. Moreover, the improved performance of the proposed control method has been further validated with several detailed studies. The results demonstrate the feasibility and superiority of the proposed strategy.

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“…Voltage and current double closed-loop control is a common control method [12,18]. And transfer function of voltage and current double closed-loop control of DC microgrid given by…”

Section: Virtual Inductance Control Strategymentioning

confidence: 99%

Section: Simulation Verificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Research on Virtual Inductive Control Strategy for Direct Current Microgrid with Constant Power Loads

et al. 2019

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show abstract

“…Recently, it has become feasible to connect power generation with DC loads using DC-power grids, thanks to simpler converter links and independent power controls. In addition, both frequency regulation and reactive power compensation are no longer included in power system stability regulation [1][2][3]. However, with the rapid growth of wind-power generators, photovoltaic (PV) arrays, and DC loads, increased amounts of fluctuating power disturb the balance between power generation and consumption.…”

Section: Introductionmentioning

confidence: 99%