Notice of Removal: Distributed Adaptive Virtual Impedance Control for Accurate Reactive Power Sharing Based on Consensus Control in Microgrids

Zhang, Huaguang; Kim, Sunghyok; Sun, Qiuye; Zhou, Jing

doi:10.1109/tsg.2015.2506760

Cited by 262 publications

(150 citation statements)

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“…As a result, the conventional droop control may cause the instability problem. To overcome the effect of line impedances on the reactive power flow, plenty of papers propose an adaptive virtual impedance droop control strategy to reduce the reactive power‐sharing deviation. Considering virtual impedance of the DRG, the equivalent impedance can be shown as follows:

({, \begin{array}{l} L_{V} = L_{V}^{*} + Δ L_{V} \\ R_{V} = R_{V}^{*} + Δ R_{V} \\ X_{V} = L_{V} + R_{V} \end{array})

where,

L_{V}^{*}

is the static virtual inductance used to enable the inductive equivalent impedance, and Δ L V is the adaptive virtual inductance utilized to deal with the reactive power sharing deviation.…”

Section: Droop Control Strategy With Adaptive Virtual Impedancementioning

confidence: 99%

“…Thus, plenty of researches have been proposed to solve this phenomenon. Recently, in order to solve the reactive power sharing problem, the distributed adaptive virtual impedance control strategy has become a gradually accepted choice . In Guerrero et al, the virtual impedance concept has been first proposed to improve the performance of droop control in the low‐voltage microgrids with a relatively high R/X ratio.…”

Section: Introductionmentioning

confidence: 99%

“…However, the accuracy of the reactive power sharing has not been ensured due to unknown line impedance. Thus, the distributed adaptive virtual impedance controller based on consensus control has been put forward . In order to achieve the harmonic and imbalance power sharing in microgrid, the consensus‐based distributed control has been proposed .…”

Section: Introductionmentioning

confidence: 99%

“…Recently, in order to solve the reactive power sharing problem, the distributed adaptive virtual impedance control strategy has become a gradually accepted choice. [9][10][11] In Guerrero et al, 9 the virtual impedance concept has been first proposed to improve the performance of droop control in the low-voltage microgrids with a relatively high R/X ratio. However, the accuracy of the reactive power sharing has not been ensured due to unknown line impedance.…”

mentioning

confidence: 99%

“…Thus, the distributed adaptive virtual impedance controller based on consensus control has been put forward. 10 In order to achieve the harmonic and imbalance power sharing in microgrid, the consensus-based distributed control has been proposed. 11 Meanwhile, the consensus-based droop control, focusing on the primary and secondary control for proper reactive power sharing, has been proposed.…”

mentioning

confidence: 99%

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The equivalent impedance characteristic analysis of the AC microgrid and its decoupled power flow calculation

Wang

Sun

et al. 2019

Int Trans Electr Energ Syst

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Summary This paper analyzes the equivalent impedance characteristics of the ac microgrid with distributed renewable energy generations (DRGs) based on the droop control and proposes a decoupled power flow calculation method. The droop control strategy with adaptive virtual impedance has become an effective solution to utilize the DRG. To analyze the characteristics of the DRG, a microgrid consisting of multi‐DRGs based on distributed consensus‐based secondary voltage droop control with adaptive virtual impedance is researched. Considering the characteristics of the DRGs, a decoupled power flow calculation can be proposed to satisfy the quick power flow calculation in order to achieve economic dispatch and stability recovery for the microgrid. Furthermore, the accuracy of the power flow calculation with considering virtual impedance is improved. Moreover, a small microgrid, including three DRGs, has been modeled and simulated using the MATLAB/Simulink. Eventually, the decoupled power flow calculation is tested on three test case systems.

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({, \begin{array}{l} L_{V} = L_{V}^{*} + Δ L_{V} \\ R_{V} = R_{V}^{*} + Δ R_{V} \\ X_{V} = L_{V} + R_{V} \end{array})

where,

L_{V}^{*}

is the static virtual inductance used to enable the inductive equivalent impedance, and Δ L V is the adaptive virtual inductance utilized to deal with the reactive power sharing deviation.…”

Section: Droop Control Strategy With Adaptive Virtual Impedancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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