Synchronization and frequency control strategy for doubly fed induction generator based on adaptive h igh‐order sliding mode controller

2021 ◽  
Author(s):  
Hassan Zare
Keyword(s):  
Control Strategy ◽  
Sliding Mode ◽  
Frequency Control ◽  
Induction Generator ◽  
Sliding Mode Controller ◽  
Doubly Fed Induction Generator ◽  
Doubly Fed

Robust finite-time controller for damping of subsynchronous resonance in doubly fed induction generator wind farm

2020 ◽  
pp. 107754632092449
Author(s):  
Penghan Li ◽  
Jie Wang ◽  
Linyun Xiong ◽  
Meiling Ma ◽  
Muhammad W Khan ◽  
...  
Keyword(s):  
Fractional Order ◽  
Wind Farm ◽  
Sliding Mode ◽  
Induction Generator ◽  
Sliding Mode Controller ◽  
Terminal Sliding Mode Control ◽  
Doubly Fed Induction Generator ◽  
Terminal Sliding Mode ◽  
Subsynchronous Resonance ◽  
Doubly Fed

To alleviate subsynchronous resonance in doubly fed induction generator–based wind farm, this study devises a robust nonlinear control for a rotor-side converter based on a fractional-order sliding mode controller. The designed fractional-order sliding mode controller is able to realize finite-time control and reduce the control time compared with terminal sliding mode control, which contributes to the faster mitigation of subsynchronous resonance. Impedance-based analysis and transient simulation are carried out to evaluate the performance of the fractional-order sliding mode controller compared with terminal sliding mode control and subsynchronous damping control. Simulation results verify that the fractional-order sliding mode controller is able to damp SSR within shorter time and effectively reduce the fluctuation range of a system’s transient responses under various working conditions of compensation degrees and wind speeds. Furthermore, the fractional-order sliding mode controller enhances the robustness under external disturbance and parametric uncertainty, ensuring safe operation of the practical wind farm.

scholarly journals Direct Flux Control for Stand-Alone Operation Brushless Doubly Fed Induction Generator Using Resonant-Based Sliding-Mode Control Approach

2018 ◽  
Author(s):  
Kai Ji ◽  
Shenghua Huang
Keyword(s):  
Sliding Mode Control ◽  
Control Strategy ◽  
Sliding Mode ◽  
Dynamic State ◽  
Induction Generator ◽  
Switching Frequency ◽  
Doubly Fed Induction Generator ◽  
Flux Control ◽  
Mode Control ◽  
Doubly Fed

In this paper, a novel voltage control strategy of stand-alone operation brushless doubly fed induction generator for variable speed constant frequency wind energy conversion systems was presented and discussed particularly. Based on the model of the generator power system, the proposed direct flux control strategy employs a nonlinear reduced-order generalized integrator based resonant sliding-mode control scheme to directly calculate and regulated the output value of converter which control winding stator required so as to eliminate the instantaneous errors of power winding stator flux, and no involving any synchronous rotating coordinate transformations. The stability, robustness and convergence capability of the proposed control strategy were described and analyzed. Owing to no extra current control loops involved, therefore simplifying the system configuration design and enhancing the transient performance. Constant converter switching frequency was achieved by using space vector pulse width modulation, which reduce the harmonic of generator terminal voltage. In addition, experimental results prove the feasibility and validity of the proposed scheme, and excellent steady and dynamic state performance is achieved.

scholarly journals Improved sliding mode power control of doubly-fed-induction generator under wind speed variation

2021 ◽  
Vol 12 (4) ◽  
pp. 2443
Author(s):  
Bouiri Abdesselam ◽  
Benoudjafer Cherif ◽  
Boughazi Othmane ◽  
Abdallah Abden ◽  
Chojaa Hamid
Keyword(s):  
Power Control ◽  
Sliding Mode ◽  
Induction Generator ◽  
Sliding Mode Controller ◽  
Doubly Fed Induction Generator ◽  
Reference Tracking ◽  
Sign Function ◽  
Linear Controller ◽  
Chattering Phenomenon ◽  
Doubly Fed

<p><span lang="EN-US">Due to drawbacks of classical linear controller like proportional-integral (PI), many studies have been used non-linear controller specially when it comes to robustness, but this is less efficient in sliding mode controller (SM) due to the sign function, this function is known as a problem chattering phenomenon, this main disadvantage it can be compensated by Lyapunov backstepping condition, This paper presents nonlinear power control strategy of the doubly-fed-induction generator (DFIG) for wind application system (WAS) using sliding mode combining with backstepping controller (SM-BS) to control produced statoric powers to mitigate unnecessary chattering effects inherent in traditional SMC, to check the effectiveness of the controller, we compare performance of sliding mode controller and sliding mode controller combining with backstepping (SM-BS) in terms of required reference tracking, robustness under parametric variations of the generator, sensitivity to perturbations and reaction to speed variations under investigating further of the chattering phenomenon.</span></p>

Sign in / Sign up

Export Citation Format

Share Document