Modeling of DFIG-Based Wind Turbine for Power System Transient Response Analysis in Rotor Speed Control Timescale

Tang, Wangqianyun; Hu, Jiabing; Chang, Yuanzhu; Liu, Feng

doi:10.1109/tpwrs.2018.2827402

Cited by 124 publications

(56 citation statements)

References 22 publications

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“…A feed forward technique is also employed, which in Fig.2, is noted as e ∧ dq . This is a common practice to improve disturbance rejection of the current loop from the grid voltage [2], [6], [8], [10], [14], [25]. Although the effectiveness of this method can be deteriorated by the one-sampling delay G + d (z), the amplitude of the disturbance from the grid voltage is dramatically reduced with the help of e ∧ dq , which is certainly valid for sags and swells found in a practical power network.…”

Section: System Modeling and Current Controllers For Gccs In The Srfmentioning

confidence: 99%

“…Similarly, the root locus of current loop, which is plotted by varying the controller gain k in (8), can be obtained, as shown in Fig.5(a). The two trajectories initiated from p 1,2 ol , are noted as 1 and 2 , respectively. It can be observed that with the increasing of k, trajectories 1 and 2 meet at the point of ''A'' and then depart in the opposite direction, before which the system is over damped.…”

Section: Tuning Of Dcpi Based On Critical Damping In the Discretmentioning

confidence: 99%

“…However, LC and LCL filters can cause stability problems related to resonance, which have been the subject of significant researchers in recent years [7], [13]- [19]. Alternatively, L filter does not experience the aforementioned problem, and has, in fact, been used in lots of applications with satisfactory results [2], [3], [5], [6], [8], [10], [20]- [36].…”

Section: Introductionmentioning

confidence: 99%

“…Alternatively, tuning of the current controller is another aspect to achieve the possible highest performance for a specific current controller, which has, therefore, been investigated by a lot of researchers [2], [5]- [9], [16], [18]- [25], [30]- [36]. Commonly, the method based on frequency response analysis to achieve a certain phase margin has been widely employed for its simplicity and intuitiveness.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Tuning of Discrete Complex Proportional Integral Current Controller for Grid-Connected Converters Based on Critical Damping

Zhao

Cao

et al. 2020

IEEE Access

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Current control is of utmost importance for grid-connected converters to achieve a high level of performance. The complex proportional integral controller is usually employed for its excellent performance in terms of cross-coupling decoupling and stability. The pole/zero cancellation characteristic of the complex proportional integral controller, which is always valid in the continues-time domain, fails in the discrete-time domain, resulting in an oscillatory or even unstable response. The discrete complex proportional integral controller has thus been addressed in this work, which cancels the complex plant pole with a matching zero provided by the controller in the discrete-time domain. It has been proved that pole/zero cancellation of the discrete complex proportional integral controller is always valid, regardless of the variation of the excitation frequency. An important feature of performance independence from the pulse ratio is thus achieved. Also, to achieve the possible highest performance, a tuning method based on critical damping is developed in the discrete-time domain, which addresses the one-sample delay directly in the tuning process. In this manner, the minimum settling time and negligible overshoot for transient response can be achieved, along with the most enhanced stability and avoidance of closed-loop anomalous peaks. Experimental results have verified the effectiveness of the developed method. INDEX TERMS Current control, grid connected converters, complex proportional integral, discretization.

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Section: System Modeling and Current Controllers For Gccs In The Srfmentioning

confidence: 99%

Section: Tuning Of Dcpi Based On Critical Damping In the Discretmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tuning of Discrete Complex Proportional Integral Current Controller for Grid-Connected Converters Based on Critical Damping

Zhao

Cao

et al. 2020

IEEE Access

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“…A DFIG-based wind turbine model was designed in [61], using the time scale of the rotor speed control, to examine the transient response of the generator. The effect of the unique behaviour on the transient stability of the DFIG-controlled SMIB system was evaluated.…”

Section: Transient Stability Analysis In Wecsmentioning

confidence: 99%

Transient Faults in Wind Energy Conversion Systems: Analysis, Modelling Methodologies and Remedies

et al. 2018

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This paper presents an in-depth review of classical and state-of-the-art models for analysing the transient stability in wind energy conversion systems. Various transient simulation models for a number of wind turbine generator (WTG) configurations are introduced, under different disturbances. The mitigation is achieved, by manipulating the generator speed and power electronics control, whereas the protection is implemented using conventional, intelligent or digital relays for the safety of sensitive components, in case of transient fault occurrence. The various control systems in WECS are basically employed to transform and regulate the varying frequency, owing to the stochastic nature of wind speed, to the standard 50-Hz or 60-Hz frequency for coupling to an existing electrical utility grid. It has been observed that the control and protection schemes in wind energy systems are concurrently applied. Transient faults in WECSs are a dominant power quality problem especially in the doubly-fed induction generator (DFIG), and often classified as overcurrent or overvoltage transients. These transients are measured using the transient stability index and analysed using the EMTDC/PSCAD software. In addition, the inertia of the rotating masses of wind turbine generators is often characterized by a transient torque, which generates oscillations in power systems.

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Adaptive FOPI controller based on the fuzzy supervisory for wind power conversion system equipped by a doubly fed induction generator

Kasbi

Rahali

2021

Int Trans Electr Energ Syst

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Summary Wind power systems have non‐linear dynamics and contain many uncertainties such as the parametric uncertainty and the unknown external disturbances. For these reasons, it is a crucial task to design the robust control systems to assure a robust response of wind systems during uncertainties without deteriorating the supplied power quality or stressing the static power converters. This paper designs an adaptive fractional‐order proportional‐integral (FOPI) control system for a wind power conversion system (WPCS) equipped by a doubly fed induction generator (DFIG) in the electric power grid (EPG) connected mode. The designed adaptive control system combines the robust and intelligent nature of the fuzzy supervisory system (FSS) and simple structure of FOPI controller, where the fuzzy rules are utilized to adjust the FOPI controller parameters based on the error and its rate, resulting in an adaptive fuzzy FOPI (AFFOPI) control system, which can keep the control action touch of the standard FOPI controller and, at the same time, provides the robustness during uncertainties without effect on the power quality supplied to the EPG. Pursuant to the vector control technology of the DFIG, the designed adaptive fuzzy FOPI controllers are applied in both the external loop of power control and in the internal loop of rotor current control, simultaneously. The feasibility of the presented adaptive FOPI control is validated through the numerical results obtained, under different running conditions, using the Matlab/Simulink software.

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Modeling of DFIG-Based Wind Turbine for Power System Transient Response Analysis in Rotor Speed Control Timescale

Cited by 124 publications

References 22 publications

Tuning of Discrete Complex Proportional Integral Current Controller for Grid-Connected Converters Based on Critical Damping

Tuning of Discrete Complex Proportional Integral Current Controller for Grid-Connected Converters Based on Critical Damping

Transient Faults in Wind Energy Conversion Systems: Analysis, Modelling Methodologies and Remedies

Adaptive FOPI controller based on the fuzzy supervisory for wind power conversion system equipped by a doubly fed induction generator

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