In this paper, a novel distributed control algorithm for current sharing and voltage regulation in DC microgrids is proposed. The DC microgrid is composed of several distributed generation units, including buck converters and current loads. The considered model permits an arbitrary network topology and is affected by an unknown load demand and modeling uncertainties. The proposed control strategy exploits a communication network to achieve proportional current sharing using a consensus-like algorithm. Voltage regulation is achieved by constraining the system to a suitable manifold. Two robust control strategies of sliding mode type are developed to reach the desired manifold in a finite time. The proposed control scheme is formally analyzed, proving the achievement of proportional current sharing, while guaranteeing that the weighted average voltage of the microgrid is identical to the weighted average of the voltage references.


    Access

    Download


    Export, share and cite



    Title :

    A robust consensus algorithm for current sharing and voltage regulation in dc microgrids



    Publication date :

    2019-07-01


    Remarks:

    Cucuzzella , M , Trip , S , De Persis , C , Cheng , X , Ferrara , A & van der Schaft , A 2019 , ' A robust consensus algorithm for current sharing and voltage regulation in dc microgrids ' , IEEE Transactions on Control Systems Technology , vol. 27 , no. 4 , pp. 1583-1595 . https://doi.org/10.1109/TCST.2018.2834878



    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Classification :

    DDC:    629