Due to the increasing necessity for electrical demand, the microgrids (MGs) based on distributed generations (DGs) within power electronic interfaces are being extended to improve the traditional network control. One of the common ways to achieve the power sharing among the resources on an islanding MG is to use droop control approach, performing based on proportional-integrator (PI) controllers. However, due to the effect of feeder impedance, obtaining the reactive power sharing using this method is not accurate and leads to overload in some DGs, results in the output terminal voltage of each DG go out of the allowable range. The second problem arises when the frequency measurement is not performed precisely, leading inaccurate active power sharing, which can be solved by using an improved phase locked loop (PLL). Therefore, the purpose of this paper is to propose an applicable and simple approach based on the use of conventional droop characteristics and a proportional-resonant (PR) controller in a DG control system. Due to the load changes in the microgrid and other contingencies, the proposed PLL-based controller is able to represent supreme performance with low error in several case studies.


    Access

    Download


    Export, share and cite



    Title :

    Distributed generation control using modified PLL based on proportional-resonant controller



    Publication date :

    2020-12-01


    Remarks:

    doi:10.3390/app10248891



    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Classification :

    DDC:    629



    FRACTIONAL-ORDER PROPORTIONAL-RESONANT CONTROLLER

    MALEK HADI / DADRAS SARA | European Patent Office | 2017

    Free access

    Fractional-order proportional-resonant controller

    MALEK HADI / DADRAS SARA | European Patent Office | 2018

    Free access

    Mitigating the Torque Ripple in Electric Traction using Proportional Integral Resonant Controller

    Chuan, Hawwooi / Fazeli, Seyed / Wu, Zhongze et al. | BASE | 2020

    Free access

    A novel fractional proportional-resonant current controller for voltage source converters

    Heredero Peris, Daniel / Sánchez Sánchez, Enric / Chillón Antón, Cristian et al. | BASE | 2016

    Free access

    Proportional controller Patent

    Menefee, E. O. | NTRS | 1967