Primary frequency regulation of the hybrid power system by deloaded PMSG-based offshore wind farm using centralised droop controller

The Journal of Engineering

  ^{1    2    2    2    2    2} 

[1] Department of Electrical and Computer Engineering, Curtin University, Perth, Australia;Department of Electrical and Electronic Engineering, Kitami Institute of Technology, Hokkaido, Japan;

关键词: synchronous generators;    frequency control;    offshore installations;    wind turbines;    HVDC power transmission;    power generation faults;    power grids;    permanent magnet generators;    squirrel cage motors;    power generation control;    wind power plants;    machine control;    OWF;    centralised frequency controller;    modified IEEE nine-bus model system;    primary frequency regulation;    hybrid power system;    deloaded PMSG-based offshore wind farm;    coordinated frequency control method;    variable speed wind turbines;    permanent magnet synchronous generators based offshore wind farm;    VSWT-PMSGs;    main onshore grid;    voltage source converter;    high voltage DC transmission system;    frequency oscillations;    large-scale fixed speed wind turbines;    squirrel cage induction generators;    frequency fluctuations;    onshore main power system;    primary frequency reserve;    centralised droop controller;   

DOI  :  10.1049/joe.2018.9326

来源: publisher

【 摘 要 】

This paper proposes a coordinated frequency control method for variable speed wind turbines with permanent magnet synchronous generators (VSWT-PMSGs) based offshore wind farm (OWF), which is connected to the main onshore grid through voltage source converter (VSC) based high voltage DC (HVDC) transmission system. The purpose of the proposed system is to damp the frequency oscillations of the onshore grid due to the installation of large-scale fixed speed wind turbines with squirrel cage induction generators (FSWT-SCIGs) based wind farm (WF) and photovoltaic (PV) power station. A novel centralised droop controller with the dead band is designed for VSWT-PMSGs to decrease the frequency fluctuations of the onshore main power system. In the proposed system, primary frequency reserve is implemented by deloading operation of VSWT-PMSGs in the OWF. The effectiveness of the proposed centralised frequency controller is verified through simulation analysis on a modified IEEE nine-bus model system in PSCAD/EMTDC software.

【 授权许可】

CC BY