scholarly journals Analysis and Mitigation of Sub-Synchronous Resonance for Doubly Fed Induction Generator under VSG Control

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1582
Author(s):  
Yingzong Jiao ◽  
Feng Li ◽  
Hui Dai ◽  
Heng Nian
Keyword(s):  
Reactive Power ◽  
Synchronous Generator ◽  
Impedance Analysis ◽  
Damping Factor ◽  
Renewable Power ◽  
Induction Generators ◽  
Parameter Configuration ◽  
Impedance Modeling ◽  
Doubly Fed ◽  
Series Capacitor Compensation

This paper presents the analysis and mitigation of sub-synchronous resonance (SSR) for doubly fed induction generators (DFIG) under virtual synchronous generator (VSG) control, based on impedance methods. VSGs are considered to have grid-supporting ability and good stability in inductance-based weak grids, and are implemented in renewable power generations, including DFIG systems. However, stability analyses of VSGs for DFIG connecting with series capacitor compensation are absent. Therefore, this paper focuses on the analysis and mitigation of SSR for DFIG under VSG control. Impedance modeling of DFIG systems is used to analyze SSR stability. Based on impedance analysis, the influence of VSG control parameters and the configuration of damping factor of reactive power are discussed. Next, a parameter configuration method to mitigate SSR is proposed. Finally, time-domain simulation and fast fourier transform (FFT) results are given to validate the correctness and effectiveness of the impedance model and parameter configuration methods.

scholarly journals Doubly fed induction generators to enhance inter-area damping based on a Robust controller: $${{\varvec{H}}}_{2}/{{\varvec{H}}}_{\infty }$$ Control

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Ali Goodarzi ◽  
Ali Mohammad Ranjbar ◽  
Moslem Dehghani ◽  
Mina GhasemiGarpachi ◽  
Mohammad Ghiasi
Keyword(s):  
Working Conditions ◽  
Reactive Power ◽  
Wind Farms ◽  
System Stability ◽  
Pole Placement ◽  
Linear Matrix ◽  
Robust Controller ◽  
Induction Generators ◽  
Doubly Fed ◽  
Oscillation Damping

AbstractIn this study, an auxiliary damping controller based on a robust controller considering the active and reactive power control loops for a doubly-fed induction generator for wind farms is proposed. The presented controller is able to improve the inter-area oscillation damping. In addition, the proposed controller applies only one accessible local signal as the input; however, it can improve the inter-area oscillation damping and, consequently the system stability for the various working conditions and uncertainties. The oscillatory modes of the system are appointed using the linear analysis. Then, the controller’s parameters are determined using the robust control approaches ($${H}_{\infty }/{H}_{2})$$ H ∞ / H 2 ) with the pole placement and linear matrix inequality method. The results of the modal analysis and time-domain simulations confirm that the controller develops the inter-area oscillation damping under the various working conditions and uncertainties.

scholarly journals Development Of A New Reactive Power Control Strategy In Doubly-fed Induction Generators For Wind Turbines

2008 ◽  
Vol 13 (4) ◽  
pp. 277-284 ◽  
Author(s):  
Rodrigo Gaiba de Oliveira ◽  
João Lucas da Silva ◽  
Selênio Rocha Silva ◽  
Balduino Rabelo Junior ◽  
Wilfried Hofmann
Keyword(s):  
Power Control ◽  
Wind Turbines ◽  
Control Strategy ◽  
Reactive Power ◽  
Reactive Power Control ◽  
Induction Generators ◽  
Doubly Fed Induction Generators ◽  
Doubly Fed

scholarly journals Control and Investigation of Operational Characteristics of Variable Speed Wind Turbines with Doubly Fed Induction Generators

2021 ◽  
Vol 18 (4) ◽  
Author(s):  
Abdelali AARIB ◽  
Aymane EL MOUDDEN ◽  
Abdelhadi EL MOUDDEN ◽  
Abdelhamid HMIDAT
Keyword(s):  
Wind Turbines ◽  
Control Strategy ◽  
Reactive Power ◽  
Maximum Efficiency ◽  
Percentage Error ◽  
Modeling And Control ◽  
Induction Generators ◽  
Nominal Voltage ◽  
Doubly Fed ◽  
And Control

This article deals with the analysis, modeling, and control of the doubly-fed induction generator (DFIG) for wind turbines. The DFIG wind turbine can deliver more energy to the grid. There are some different methods to modify the DFIG system in order to accomplish the stator reactive power proposed. One of these methods is to modify the DFIG system for nominal voltage to evaluate cost and materials-efficiency consequences. A specific control strategy is implemented according to the vector control strategy. The proportional-integral (PI) regulators used are simple and precise controllers. This type of regulation, which is closed-loop rotor currents, allows adjustment of the sliding of the DFIG. This gives a good adjustment of the powers of the stator and the rotor. The percentage error of the simulation is less than 2 %. The results obtained in these investigations show that it is possible to adjust the powers of the stator, even with a variation of the parameters. The developed method will allow achieving the maximum efficiency of the wind energy conversion chain. The objective of this article is to optimize the quality of energy generated by wind turbines by controlling the reactive stator power and reducing the losses of the energy of the reactive stator power, which must be a physically minimal value. The results will be presented in the Matlab - Simulink environment.

scholarly journals Enhancement of Low Voltage Ride through Capability for DFIG based Wind Turbine with STFCL, DVR and Energy Storage System

2019 ◽  
Vol 8 (2) ◽  
pp. 2882-2886
Keyword(s):  
Wind Turbine ◽  
Reactive Power ◽  
Low Voltage ◽  
Storage System ◽  
Energy Storage System ◽  
Low Voltage Ride Through ◽  
Induction Generators ◽  
Collaborative Control ◽  
Switch Type ◽  
Doubly Fed

A Switch type fault current limiter in coordination with DVR is presented in this paper for Wind turbine generators that consist of doubly fed induction generators in order to full fill Low voltage ride through requirements in grid systems. The position of in-statement, the simulation and the methods for enhancement of LVRT functioning are represented. Collaborative control between the STFCL and a combination of Reactive power control and Inductance emulating control are used to enable the doubly fed induction generator to generate reactive power and ensure that the system remains safe even during faults in the grid. A different type of fault conditions are examined under both normal conditions and while the proposed system is attached.

scholarly journals Research of Visual Synchronous Technology Based Control Method for PMSG Wind Power System

2021 ◽  
Vol 2087 (1) ◽  
pp. 012059
Author(s):  
Dongmei Xie ◽  
Changjian Li ◽  
Yanxi Jiang
Keyword(s):  
Power System ◽  
Wind Power ◽  
Control Method ◽  
Penetration Rate ◽  
Synchronous Generator ◽  
Doubly Fed Induction Generator ◽  
Renewable Power ◽  
Wind Power System ◽  
Synchronous Technology ◽  
Doubly Fed

Abstract Commissioned for wind power system there are two main types of generators, one is doubly fed induction generator(DFIG), the other is permanent magnetic synchronous generator(PMSG). Compared to DFIG unit, PMSG wind power system is more economical for manufacturing and maintenance. With the higher penetration rate of wind power generation in the grid, the need for the renewable power units to provide active frequency support yields relevant control characteristics in their power converters, for which the visual synchronous generator control exhibits promising features. This paper proposes a visual synchronous technology based PMSG wind power system. The simulation results verified the effectiveness of this proposed controller.

Sign in / Sign up

Export Citation Format

Share Document