Modeling of DFIG-Based Wind Farms for SSR Analysis

Fan, Lingling; Kavasseri, Rajesh G.; Miao, Zhixin; Zhu, Chengwei

doi:10.1109/tpwrd.2010.2050912

Cited by 405 publications

(232 citation statements)

References 15 publications

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“…The two-mass drive train model, including the gearbox, shafts, and other mechanical components of the wind turbine (WT), is often used to study the dynamic stability of DFIG-WECS. The shaft of generator rotor is connected to the shaft of turbine flexibly via gearbox and coupling [24]. The electromechanical dynamics of the generator-turbine system are presented by the following equations [25]:…”

Section: Wind Turbinementioning

confidence: 99%

An Innovative Control Strategy to Improve the Fault Ride-Through Capability of DFIGs Based on Wind Energy Conversion Systems

et al. 2016

Energies

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An innovative control strategy is proposed for enhancing the low voltage ride-through (LVRT) capability of a doubly fed induction generator based on wind energy conversion systems (DFIG-WECS). Within the proposed control method, the current control loops of the rotor side converter (RSC) are developed based on passivity theory. The control scheme for the grid side converter (GSC) is designed based on a two-term approach to keep the DC-link voltage close to a given value. The first term based on the maximal voltage of GSC is introduced in the GSC control loops as a reference reactive current. The second one reflecting the instantaneous unbalanced power flow between the RSC and GSC is also introduced in the GSC control loops as a disturbance considering the instantaneous power of the grid filter to compensate the instantaneous rotor power. The effectiveness of the proposed control strategy is verified via time domain simulation of a 2.0 MW-575 V DFIG-WECS using PSCAD/EMTP. Simulation results show that the control of the DFIG with the proposed approach can improve the LVRT capability better than with the conventional one.

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Section: Wind Turbinementioning

confidence: 99%

An Innovative Control Strategy to Improve the Fault Ride-Through Capability of DFIGs Based on Wind Energy Conversion Systems

et al. 2016

Energies

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“…For this reason, a shunt capacitor bank is usually included at the WRIG terminals [32,28]. The state equations in the d − q reference frame are,…”

Section: Shunt Capacitor Bankmentioning

confidence: 99%

Modeling and control of Type-2 wind turbines for sub-synchronous resonance damping

Mancilla–David

Domínguez‐García

Gil

et al. 2015

Energy Conversion and Management

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The rapid increase of wind power penetration into power systems around the world has led transmission system operators to enforce stringent grid codes requiring novel functionalities from renewable energy-based power generation. For this reason, there exists a need to asses whether wind turbines (WTs) will comply with such functionalities to ensure power system stability. This paper demonstrates that Type-2 WTs may induce sub-synchronous resonance (SSR) events when connected to a series-compensated transmission line, and with proper control, they may also suppress such events. The paper presents a complete dynamic model tailored to study, via eigenanalysis, SSR events in the presence of Type-2 WTs, and a systematic procedure to design a power system stabilizer using only local and measurable signals. ReEmail address: fernando.mancilla-david@ucdenver.edu Corresponding author (Fernando Mancilla-David) Conversion & Management March 12, 2015 sults are validated through a case study based on the IEEE first benchmark model for SSR studies, as well as with transient computer simulations. Preprint submitted to Energy

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“…However, generator shaft of a thermal plant has a great opportunity to exchange sub-synchronous energy with the series compensation capacitor and then sub-synchronous resonance (SSR) occurs [4][5][6][7][8]. Since electric strength between AC Buses, which is decided by short-circuit capacity of an equivalent system, can change the resonance frequency of the system and damping characteristics of SSR [9][10][11][12], at the system planning stage it is critical to ensure the short-circuit capacity does not make contributions to exciting SSR.…”

Section: Introductionmentioning

confidence: 99%

A Fast Method to Determine Short-circuit Capacity Based on Compensation Impact Factor

Li¹,

Song²,

Xia³

et al. 2018

Proceedings of the 2018 2nd International Conference on Applied Mathematics, Modelling and Statistics Application (AMMSA 2018)

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Abstract-This paper proposes a fast method to determine short-circuit capacity for an AC system, which includes a compensation capacitor, to avoid sub-synchronous resonance (SSR) risk at a system planning stage. Firstly, the compensation impact factor (CIF) is calculated for generators with different short-circuit capacities. If CIF of all generators are below the threshold value, then the short-circuit capacity is the safety one. Finally, safety short-circuit capacity group is formed and strongly suggested to the system planning due to no SSR risk threating the system. The proposed method needs simple system modeling and calculation process and little information on generator shaft. Simulation results show that the proposed method can precisely determine the safety short-circuit capacity group for the system.

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Modeling of DFIG-Based Wind Farms for SSR Analysis

Cited by 405 publications

References 15 publications

An Innovative Control Strategy to Improve the Fault Ride-Through Capability of DFIGs Based on Wind Energy Conversion Systems

An Innovative Control Strategy to Improve the Fault Ride-Through Capability of DFIGs Based on Wind Energy Conversion Systems

Modeling and control of Type-2 wind turbines for sub-synchronous resonance damping

A Fast Method to Determine Short-circuit Capacity Based on Compensation Impact Factor

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