Analysis and Control of Fault Ride Through Capability Improvement PMSG Based on WECS Using Active Crowbar System During Different Fault Conditions

Abstract

Recently, as wind energy has increased considerably in the electric power generation system, the wind turbines must maintain connected to the grid and improve the system stability during and after the grid faults. The enhancement of fault-ride through (FRT) capability of permanent magnet synchronous generator (PMSG) based on wind energy conversion system (WECS) is a vital issue. An active crowbar protection system in this paper is proposed to the improvement of FRT capability and the enhancement of the power quality of PMSG based on WECS system during and after the grid faults. The active crowbar in this paper is designed from a series resistor with an insulated gate bipolar transistor (IGBT) switch, unlike the passive crowbar, which has only one resistor. The active crowbar protects the power converters from the damaging effects of overcurrent during grid fault. The main aims of the active crowbar system are reduction of the amplitude of stator fault voltages, remains constant DC link voltage, general enhancement in all response of the PMSG, minimizing in the trigger time of the active crowbar. These aims are achieved with the introduction of the active crowbar between the machine side converter (MSC) and PMSG. The proposed protection system implemented a 1.5MVA PMSG based on WECS during different grid faults conditions using MATLAB/Simulation. The proposed protection system is compared with without protection system during different faults conditions and the validity of the proposed protection system is verified by simulation results.

Enhancing the Transient State Performance of Permanent Magnet Synchronous Generator Based Variable Speed Wind Turbines Using Power Converters Excitation Parameters

“…In the literature, there are many reports on the control strategies and fault ride through topologies concerning PMSG wind turbines. Nasiri and Mohammadi (2017) enhanced the PMSG wind turbine considering its peak current limitation, while a control strategy based on the maximum power point tracking (MPPT) for both power converters was used (Gencer, 2018). Superconducting fault current limiter (SFCL) was used in Yehia et al (2018) to improve the performance of the PMSG wind turbine during grid fault.…”

Enhanced performance of PMSG wind turbines during grid disturbance at different network strengths considering fault current limiter

“…In the literature, several FRT control strategies have been reported concerning the PMSG wind turbines. Reference 15 analyzed a PMSG wind turbine, considering the peak current limitation, while Reference 16 employed the maximum power point tracking (MPPT) for both MSC and GSC power converters. An expensive active crowbar switch was used to keep the voltage of the DC link close to its permissible limit in Reference 16, during transient state.…”

Analysis and Control of Fault Ride-Through Capability Improvement for Wind Energy Conversion System Using Linear Active Disturbance Rejection Control With Correction Link

“…The authors of [14] proposed the peak current limitation for a high-power PMSG. In Reference [15], through the use of an active crowbar to maintain the stability of the DC link voltage value [15]. In order to achieve the FRT capability enhancement of a PMSG, a superconducting fault current limiter (SFCL) was applied [16].…”