Enhanced Dynamic Voltage Control of Type 4 Wind Turbines During Unbalanced Grid Faults

Neumann, Tobias; Wijnhoven, Thomas; Deconinck, Geert; Erlich, I.

doi:10.1109/tec.2015.2470126

Cited by 71 publications

(57 citation statements)

References 8 publications

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“…seq. phase angle is aligned to the respective voltage vector which is challenging for very low magnitudes [14]. Therefore, for a magnitude smaller than 0.05 per unit (p.u.)…”

Section: Grid Synchronizationmentioning

confidence: 99%

“…seq. current reference to limit OM similar to [14]. As long as OM is detected, either the q-or the dcomponent of the current reference is reduced.…”

Section: Om Limitationmentioning

confidence: 99%

“…seq. handling by WT converters is treated in [10,11,12,13,14,15,16,17,18] and in the light of VSC-HVDC-interfaced AC grids in [19,20,21,22]. Converter control regarding neg.…”

Section: Introductionmentioning

confidence: 99%

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Handling of unbalanced faults in HVDC-connected wind power plants

Schönleber

Prieto‐Araujo

Ratés-Palau

et al. 2017

Electric Power Systems Research

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“…seq. phase angle is aligned to the respective voltage vector which is challenging for very low magnitudes [14]. Therefore, for a magnitude smaller than 0.05 per unit (p.u.)…”

Section: Grid Synchronizationmentioning

confidence: 99%

“…seq. current reference to limit OM similar to [14]. As long as OM is detected, either the q-or the dcomponent of the current reference is reduced.…”

Section: Om Limitationmentioning

confidence: 99%

See 1 more Smart Citation

Handling of unbalanced faults in HVDC-connected wind power plants

Schönleber

Prieto‐Araujo

Ratés-Palau

et al. 2017

Electric Power Systems Research

View full text Add to dashboard Cite

“…The ASVR computed here could be adopted as constraints for the voltage controllers that are deployed in wind farms and control center. During the control process, of course, the dynamic models are crucial, especially the dynamic reactive power reserve of SVCs/SVGs will greatly influence the voltage profiles when contingencies happen [30]- [31]. In future work, we will further research how dynamics models influence the AVSR (e.g.…”

Section: Index Terms-autonomous Voltage Security Region (Avsr)mentioning

confidence: 99%

Autonomous Voltage Security Regions to Prevent Cascading Trip Faults in Wind Turbine Generators

Niu

Guo

Sun

et al. 2016

IEEE Trans. Sustain. Energy

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Abstract-Cascading trip faults in large-scale wind power centralized integration areas bring new challenges to the secure operation of power systems. In order to deal with the complexity of voltage security regions and the computation difficulty, this paper proposes an autonomous voltage security region (AVSR) for each wind farm and the point of common coupling (PCC) substation, whose voltage can be controlled in a decoupled way. The computation of the AVSR can be completed using a stepwise search method exchanging voltage and power information between the control center and the wind farms. At each wind farm, an AVSR is determined to guarantee the normal operation of each wind turbine generator (WTG), while in the control center, each region is designed in order to guarantee secure operation both under normal conditions and after an N-1 contingency. A real system in Northern China was used to carry out case studies to verify the effectiveness of the AVSRs proposed, and good performance was demonstrated using the Monte Carlo method.

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“…At present, the study of multiple-machine representation for PMSG-based WPPs only takes into account diversity in wind speeds (Abbes et al 2015; Conroy and Watson 2009). Furthermore, since the speed changes in both the wind turbine and generator are negligible during the voltage dip, the simplified equivalent PMSG-based WPP models are recommended, in which the drive train, the generator and the machine side converter (MSC) are omitted (Conroy and Watson 2009; Neumann et al 2015). Although the chopper circuit is taken into account, these simplified models with single-machine representation or multiple-machine representation cannot accurately reflect the diversity in chopper circuit conductions within the WPP.…”

Section: Introductionmentioning

confidence: 99%

Equivalent modeling of PMSG-based wind power plants considering LVRT capabilities: electromechanical transients in power systems

Ding

Zhu

2016

SpringerPlus

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Hardware protection and control action are two kinds of low voltage ride-through technical proposals widely used in a permanent magnet synchronous generator (PMSG). This paper proposes an innovative clustering concept for the equivalent modeling of a PMSG-based wind power plant (WPP), in which the impacts of both the chopper protection and the coordinated control of active and reactive powers are taken into account. First, the post-fault DC link voltage is selected as a concentrated expression of unit parameters, incoming wind and electrical distance to a fault point to reflect the transient characteristics of PMSGs. Next, we provide an effective method for calculating the post-fault DC link voltage based on the pre-fault wind energy and the terminal voltage dip. Third, PMSGs are divided into groups by analyzing the calculated DC link voltages without any clustering algorithm. Finally, PMSGs of the same group are equivalent as one rescaled PMSG to realize the transient equivalent modeling of the PMSG-based WPP. Using the DIgSILENT PowerFactory simulation platform, the efficiency and accuracy of the proposed equivalent model are tested against the traditional equivalent WPP and the detailed WPP. The simulation results show the proposed equivalent model can be used to analyze the offline electromechanical transients in power systems.

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Enhanced Dynamic Voltage Control of Type 4 Wind Turbines During Unbalanced Grid Faults

Cited by 71 publications

References 8 publications

Handling of unbalanced faults in HVDC-connected wind power plants

Handling of unbalanced faults in HVDC-connected wind power plants

Autonomous Voltage Security Regions to Prevent Cascading Trip Faults in Wind Turbine Generators

Equivalent modeling of PMSG-based wind power plants considering LVRT capabilities: electromechanical transients in power systems

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