Optimal Oscillation Damping Controller Design for Large Scale Wind Integrated Power Grid

Gurung, Niroj; Bhattarai, Rojan; Kamalasadan, Sukumar

doi:10.1109/tia.2020.2988432

Cited by 13 publications

(11 citation statements)

References 39 publications

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“…A second-order sliding-mode based damping controller is proposed in [19,20] as a resort for inter-area oscillation mitigation. A reduced-order model based optimal oscillation damping controller is also designed in [21]. A residue-based evaluation method is implemented to provide an additional control design for the power oscillations [22].…”

Section: Introductionmentioning

confidence: 99%

Transition from Electromechanical Dynamics to Quasi-Electromechanical Dynamics Caused by Participation of Full Converter-Based Wind Power Generation

Luo

Zhu

2020

Energies

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Previous studies generally consider that the full converter-based wind power generation (FCWG) is a “decoupled” power source from the grid, which hardly participates in electromechanical oscillations. However, it was found recently that strong interaction could be induced which might incur severe resonance incidents in the electromechanical dynamic timescale. In this paper, the participation of FCWG in electromechanical dynamics is extensively investigated, and particularly, an unusual transition of the electromechanical oscillation mode (EOM) is uncovered for the first time. The detailed mathematical models of the open-loop and closed-loop power systems are firstly established, and modal analysis is employed to quantify the FCWG participation in electromechanical dynamics, with two new mode identification criteria, i.e., FCWG dynamics correlation ratio (FDCR) and quasi-electromechanical loop correlation ratio (QELCR). On this basis, the impact of different wind penetration levels and controller parameter settings on the participation of FCWG is investigated. It is revealed that if an FCWG oscillation mode (FOM) has a similar oscillation frequency to the system EOMs, there is a high possibility to induce strong interactions between FCWG dynamics and system electromechanical dynamics of the external power systems. In this circumstance, an interesting phenomenon may occur that an EOM may be dominated by FCWG dynamics, and hence is transformed into a quasi-EOM, which actively involves the participation of FCWG quasi-electromechanical state variables.

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Section: Introductionmentioning

confidence: 99%

Transition from Electromechanical Dynamics to Quasi-Electromechanical Dynamics Caused by Participation of Full Converter-Based Wind Power Generation

Luo

Zhu

2020

Energies

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“…Otherwise, those oscillations will not only bring high mechanical stress to the drivetrain and adversely impact its lifespan, but also influence the stability of the entire system. Previous studies mainly focused on POD from DFIGbased WTs [4]- [13], whose results verified the feasibility of damping power oscillations by directly modulating the active or reactive power of WECS. Only a small number of published papers investigated the use of PMSG-based WTs to damp power oscillation [14]- [18].…”

Section: Stability and Dynamic Analysis Of The Pmsgbased Wecs With To...mentioning

confidence: 85%

Stability and Dynamic Analysis of the PMSG-Based WECS With Torsional Oscillation and Power Oscillation Damping Capabilities

Zhang

Zhao

et al. 2022

IEEE Trans. Sustain. Energy

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The direct-drive permanent-magnet synchronous generator (PMSG) based wind energy conversion system (WECS) with a soft drivetrain shaft is vulnerable to torsional oscillation when it participates in power oscillation damping (POD) services for the AC grid. This paper investigates three possible scenarios of incorporating both torsional oscillation damping (TOD) and POD controllers into PMSG-based WECS. A model of a PMSG-based offshore wind farm (OWF) connected to the IEEE 39-bus AC grid is developed and utilized to analyze the stability and dynamic performances of the WECS within these three scenarios. Comprehensive modal analysis is carried out to analyze the interaction between the torsional and power oscillations, and to tune the TOD and POD controllers to damp these oscillations simultaneously in each scenario. Furthermore, the dynamic performances of the PMSG-based WECS within these scenarios are evaluated through time-domain simulations. Then an optimal scenario for PMSG-based WECS to damp both oscillation types with close frequencies is identified, which is modulating the DC-link voltage for the TOD and the grid-side active power for the POD. This result can provide useful guidance for the future industrial application of the TOD and POD control in the PMSG-based WECS.

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“…3 In Fig. 3, the MSC and GSC adopt the dual-loop proportional-integral (PI) controller to regulate the DC-link voltage v DCL , the WT's output active power P g , and the output reactive power Q g ; P gref is the reference power for WT, which is determined by the maximum power-point tracking (MPPT) algorithm [16] or dispatched by wind farm control center. In this figure, up is the three-phase voltage at the high voltage side of the transformer T1 shown in Fig.…”

Section: A the Proposed Supplementary Control Scenario For Pmsg-based Wtmentioning

confidence: 99%

Control of HVDC-Connected PMSG-Based Wind Turbines for Power System Oscillation Damping

Zhang

Zhao

2022

2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)

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Optimal Oscillation Damping Controller Design for Large Scale Wind Integrated Power Grid

Cited by 13 publications

References 39 publications

Transition from Electromechanical Dynamics to Quasi-Electromechanical Dynamics Caused by Participation of Full Converter-Based Wind Power Generation

Transition from Electromechanical Dynamics to Quasi-Electromechanical Dynamics Caused by Participation of Full Converter-Based Wind Power Generation

Stability and Dynamic Analysis of the PMSG-Based WECS With Torsional Oscillation and Power Oscillation Damping Capabilities

Control of HVDC-Connected PMSG-Based Wind Turbines for Power System Oscillation Damping

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