Research on Mechanism and Damping Control Strategy of DFIG-Based Wind Farm Grid-Connected System SSR Based on the Complex Torque Method

Peng, Xiaotao; Chen, Renjie; Zhou, Jicheng; Qin, Shiyao; Bi, R.

doi:10.3390/electronics10141640

Cited by 11 publications

(10 citation statements)

References 38 publications

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“…For example, to generate electricity using wind energy, we only need a generator and a turbine. One of the most common causes of turbine generator damage is subsynchronous resonance (SSR) at subsynchronous frequencies [2]. In addition, SSR may damage other circuits such as transformers.…”

Section: Introductionmentioning

confidence: 99%

Terminal Synergetic Control for Direct Active and Reactive Powers in Asynchronous Generator-Based Dual-Rotor Wind Power Systems

Benbouhenni

Bizon

2021

Electronics

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A terminal synergetic control (TSC) is designed in this work for a rotor side converter (RSC) of asynchronous generator (ASG)-based dual-rotor wind power (DRWP) systems. The design is based on a novel sliding manifold and aims at improving the ASG performance while minimizing active and reactive power undulations. The method performance and its effectiveness were studied under harmonic distortion (THD) of current, parameter variations and power undulations. Simulation results, carried out using Matlab software, confirmed the system’s robustness against parameter variations and its effectiveness in power undulations. The performance of the designed technique was further compared to that of integral-proportional (PI) controllers in terms of parameter variations, power undulations and THD value of current. While both controllers were able to reduce the effects of power undulations and protect the rotor circuit against over-currents, the proposed TSC was shown to be more effective than the classical PI controller in tracking power and minimizing the undulations effect.

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Section: Introductionmentioning

confidence: 99%

Terminal Synergetic Control for Direct Active and Reactive Powers in Asynchronous Generator-Based Dual-Rotor Wind Power Systems

Benbouhenni

Bizon

2021

Electronics

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“…It starts at the 4 s when the fault-point voltage drops to 0 instantly. The fault clears in 4.43 s, lasting 430 ms [31,32]. The simulation will compare the performance of the following 3 groups:…”

Section: Simulation and Discussionmentioning

confidence: 99%

Control Strategy of Doubly-Fed Induction Generator under Zero Voltage Fault of Power Grid

Yang

Liang

et al. 2022

Sustainability

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For improving the zero-voltage ride through the capability of a doubly fed induction generator in high proportion new energy grid in extreme faults, a coordinated control scheme of hardware and optimal control strategy is proposed. A high-temperature superconductive-fault current limiter suppresses stator fault current, adaptive virtual impedance control and active dynamic reactive power support control act on the back-to-back converter of wind turbines as optimal control strategies. Optimizing the control strategy without changing the controller structure is beneficial to engineering implementation. After mathematical derivation and simulation verification, the coordinated control strategy adopted in this paper can effectively avoid the rotor current and voltage exceeding the limit when the wind turbine is facing extreme faults, actively provide reactive power support for the busbar, realize zero voltage ride through and reduce the risk of high voltage failure at the point of failure. The control effect is obviously better than the traditional virtual impedance control.

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“…where

{K_e}

is the damping torque coefficient and

{D_e}

is the electrical torque coefficient. If the

{D_e}

become less than zero, it causes the SSR [33]. It shows that the rotor angular velocity is the most effective variable in the SSR.…”

Section: Ssr Mitigation Techniquesmentioning

confidence: 99%

Proposed sub‐synchronous resonance damping controller for large‐scale wind farms

Moradi‐Shahrbabak

2023

IET Renewable Power Gen

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This paper deals with the mitigation of sub‐synchronous resonance (SSR) in doubly‐fed induction generator (DFIG)‐based wind farms using a sub‐synchronous resonance damping controller (SSRDC). The performance of the SSRDC depends on its input control signal and the location of its output control signals. Hence, this paper presents an algorithm to select the best location for applying the SSRDC. The DFIG parameters are used as the inputs of this algorithm. Also, the participation factors analysis is employed as this algorithm's main core. The output of this algorithm determines that the control signal of SSRDC can be applied either in the grid‐side converter (GSC) and/or in the rotor‐side converter (RSC). The best input location in the GSC is the DC‐link voltage and the best input location in the RSC is the q‐component of the rotor voltage. The accuracy of this algorithm was evaluated by investigating the effect of various input signal locations on the SSR using the eigenvalue analysis. This analysis indicated that the dc‐link voltage and the q‐components of the rotor voltage are the most effective signals on the sub‐synchronous oscillatory modes. Moreover, this paper introduces a new SSRDC using these two signals. The performance of this controller is validated through the eigenvalue analysis and a time domain simulation.

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Research on Mechanism and Damping Control Strategy of DFIG-Based Wind Farm Grid-Connected System SSR Based on the Complex Torque Method

Cited by 11 publications

References 38 publications

Terminal Synergetic Control for Direct Active and Reactive Powers in Asynchronous Generator-Based Dual-Rotor Wind Power Systems

Terminal Synergetic Control for Direct Active and Reactive Powers in Asynchronous Generator-Based Dual-Rotor Wind Power Systems

Control Strategy of Doubly-Fed Induction Generator under Zero Voltage Fault of Power Grid

Proposed sub‐synchronous resonance damping controller for large‐scale wind farms

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