Application of SMES to Enhance the Dynamic Performance of DFIG During Voltage Sag and Swell

Abstract

The integration of wind turbines into modern power grids has significantly increased during the last decade. Wind turbines equipped with doubly fed induction generators (DFIGs) have been dominating wind power installation worldwide since 2002. In this paper, a superconducting magnetic energy storage (SMES) unit is proposed to improve the dynamic performance of a wind energy conversion system equipped with DFIG during voltage sag and voltage swell events. The converter and the chopper of the SMES unit are controlled using a hysteresis current controller and a fuzzy logic controller, respectively. Detailed simulation is carried out using MATLAB/SIMULINK software to highlight the impact of the SMES unit in improving the overall system performance under voltage sag and voltage swell conditions. Index Terms-Doubly fed induction generator (DFIG), fuzzy logic, hysteresis current controller (HCC), superconducting magnetic energy storage (SMES), voltage sag, voltage swell and wind energy conversion system (WECS).

Performance of LR-type solid-state fault current limiter in improving power quality and transient stability of power network with wind turbine generators

“…The penetration of wind energy in the power grid has brought up many questions about its compatibility with the power network. In particular, there are still debates about the impacts of WTGs on network stability, power quality, reliability, and system behavior during fault situations [1][2][3][4].…”

“…The penetration of wind energy in the power grid has brought up many questions about its compatibility with the power network. In particular, there are still debates about the impacts of WTGs on network stability, power quality, reliability, and system behavior during fault situations [1][2][3][4].With the rapid development of WTG and its increasing capacity, the level of the associated short-circuit current during a fault will also be increased in the power system [1,5,6]. As a consequence, the increased short-circuit current can have negative effects on the entire power network comprising of WTG with respect to the transient stability and the power quality.…”

Methods for Advanced Wind Turbine Condition Monitoring and Early Diagnosis: A Literature Review

“…This type of generator is interfaced with the grid through full-scale power converters, which increases the implementation cost [11]. The wound rotor induction generator (also called doubly fed induction generators (DFIG)) based wind turbine system has become popular due to the superior features of this type which include low cost, low converter rating, active and reactive power control, reduced losses and high efficiency [12]. Moreover, this type can operate within a wide range of variable speed that overcomes the drawbacks of fixed speed synchronous generator [13].…”

A Concise Presentation of Doubly Fed Induction Generator Wind Energy Conversion Systems Challenges and Solutions

“…The energy so stored is later released to the PCC when grid energy goes down due to a fault hence maintaining the voltage at PCC. The DFIG thus does not experience the fault [69].…”