Low-voltage ride-through of a full converter wind turbine with permanent magnet generator

Conroy, James F.; Watson, Robert J.

doi:10.1049/iet-rpg:20070033

Cited by 274 publications

(179 citation statements)

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“…The control strategy of PMSG WT during the LVRT period should be further improved to ensure the DC-link voltage stability. Some DC-link protection circuits which are easy to implement in engineering maybe used, such as Energy Storage System (ESS), DC chopper, pitch angle control, etc., [20][21][22][23][24][25][26], as shown in Figure 12. As shown in Figure 12a, the ESS uses a super capacitor as an energy storage battery, so it can not only absorb the energy when the DC-link is in overvoltage, but also can release energy when the DC-link voltage is too low, thereby maintaining the DC-link voltage within a certain range.…”

Section: Pmsg Wt Hierarchical Control Strategymentioning

confidence: 99%

Coordinated Control Strategies of VSC-HVDC-Based Wind Power Systems for Low Voltage Ride Through

Zhang

et al. 2015

Energies

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Abstract:The Voltage Source Converter-HVDC (VSC-HVDC) system applied to wind power generation can solve large scale wind farm grid-connection and long distance transmission problems. However, the low voltage ride through (LVRT) of the VSC-HVDC connected wind farm is a key technology issue that must be solved, and it is currently lacking an economic and effective solution. In this paper, a LVRT coordinated control strategy is proposed for the VSC-HVDC-based wind power system. In this strategy, the operation and control of VSC-HVDC and wind farm during the grid fault period is improved. The VSC-HVDC system not only provides reactive power support to the grid, but also effectively maintains the power balance and DC voltage stability by reducing wind-farm power output, without increasing the equipment investment. Correspondingly, to eliminate the influence on permanent magnet synchronous generator (PMSG)-based wind turbine (WT) systems, a hierarchical control strategy is designed. The speed and validity of the proposed LVRT coordinated control strategy and hierarchical control strategy were verified by MATLAB/Simulink simulations.

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Section: Pmsg Wt Hierarchical Control Strategymentioning

confidence: 99%

Coordinated Control Strategies of VSC-HVDC-Based Wind Power Systems for Low Voltage Ride Through

Zhang

et al. 2015

Energies

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“…In [4], it is stated that for such study, the drive train system must be approximated by at least a two-mass model. In the wind turbine integration studies, it is common to define the wind turbine mechanical power output as [7] In the fully rated converter wind generation, the speed control does not only depend on the generator, but also on the wind turbine drive power characteristics [18], so integrating the two parts is important for dynamic study of the machine. Fig.…”

Section: A Test Systemmentioning

confidence: 99%

“…The tip speed ratio λ is expressed as [7]: Theoretically, full converter based wind turbine can ride through any grid faults (symmetrical or unsymmetrical) as the generator is fully decoupled from the grid through the grid side inverter. The reactive power exchange merely depends on the characteristic of the grid side converter and not on the generator properties [4,25].…”

Section: Direct Drive Wind Turbinementioning

confidence: 99%

“…Implementation of grid codes worldwide has been reported in various works and mostly suggested the utilization of variable speed generators such as DFIGs [2,3] and full converter based wind generation systems [4][5][6][7]. However, fixed speed generator are still contributing about 20% to 30% of global wind capacity [8], which mostly were installed in the 1980s to 1990s.…”

Section: Introductionmentioning

confidence: 99%

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Power system transient stability enhancement using direct drive wind generators

Mokui

Masoum

Mohseni

et al. 2012

2012 IEEE Power and Energy Society General Meeting

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“…In order to achieve LVRT capability for wind turbine systems, a braking chopper was proposed in [4]- [6], which is a relatively cheap solution with a simple control. However, it is hard to smoothen the fluctuated power from the turbine, and the generated power is dissipated in the braking resistor.…”

Section: Introductionmentioning

confidence: 99%

Ride-Through Technique for PMSG Wind Turbines using Energy Storage Systems

Nguyễn¹,

Lee²

2010

Journal of Power Electronics

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This paper deals with a ride-through technique for permanent-magnet synchronous generator (PMSG) wind turbine systems using energy storage systems (ESS). A control strategy which consists of current and power control loops for the energy storage systems is proposed. By increasing the generator speed, some portion of the turbine power can be stored in the system inertia. Therefore, the required energy capacity of the ESS can be decreased, which results in a low-cost system. In addition, the power fluctuations due to wind speed variations can be smoothened by controlling the ESS appropriately. The effectiveness of the proposed method is verified not only by the simulation results for a 2[MW] PMSG wind turbine system, but also by the experiment results for a reduced-scale turbine simulator.

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Low-voltage ride-through of a full converter wind turbine with permanent magnet generator

Cited by 274 publications

References 1 publication

Coordinated Control Strategies of VSC-HVDC-Based Wind Power Systems for Low Voltage Ride Through

Coordinated Control Strategies of VSC-HVDC-Based Wind Power Systems for Low Voltage Ride Through

Power system transient stability enhancement using direct drive wind generators

Ride-Through Technique for PMSG Wind Turbines using Energy Storage Systems

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