Grid codes in many countries require low-voltage ride-through (LVRT) capability to maintain power system stability and reliability during grid fault conditions. To meet the LVRT requirement, wind power systems must stay connected to the grid and also supply reactive currents to the grid to support the recovery from fault voltages. This paper presents a new fault detection method and inverter co...

As Wind Power Penetration increases continuously in total Power Generation, the wind turbines are necessary to stay connected to grid even under grid disturbances. An enhanced control strategy for DFIG is proposed in the present paper to meet the latest grid codes set by grid operators. The Decoupled Current Controller implemented in Grid Voltage oriented reference frame is applied to Grid Side...

To integrate the high penetration of power from wind farms into a grid, one key requirements posed by new grid codes is Low Voltage Ride Through (LVRT) capability. This paper studies voltage compensation-based methods to improve fault ride-through capability grid-connected Doubly Fed Induction Generator (DFIG). Bridge Type Fault Current Limiter (BTFCL) and Reactive Power Control (RPC), which ac...

Abstract Given the “carbon neutralization and carbon peak” policy, enhancing low voltage ride-through (LVRT) capability of wind farms has become a current demand to ensure safe stable operation power systems in context possible severe threat large-scale disconnection caused by farms. Currently, research on LVRT mainly focuses suppressing rotor providing reactive support, while impact active out...

Abstract Under-voltage ride through (UVRT) tests can be carried out on system test benches, most of them are equipped with a converter based grid simulator. This paper describes the control artificial impedance at 4 MW bench CWD. Validation measurements commercial wind turbine E‑115 E2 show that virtual specification is sufficient to perform UVRT different parameters. Comparative between voltag...