Comparative Study between Two Protection Schemes for DFIG-based Wind Generator Fault Ride Through

Okedu, Kenneth E.; Muyeen, S. M.; Takahashi, Rion; Tamura, Junji

doi:10.11142/jicems.2012.1.1.008

Cited by 22 publications

(25 citation statements)

References 13 publications

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“…In order to model the wind turbine, its components consist of turbine rotor or prime mover, a shaft and a gearbox unit [13,14]. The wind turbine output torque and extracted power from the wind turbine can be expressed by [12][13][14][15][16] …”

Section: Wind Turbine Modelingmentioning

confidence: 99%

Stability Enhancement of a Hybrid Micro-grid System in Grid Fault Condition

Ambia

Al‐Durra

Muyeen

2013

Journal of international Conference on Electrical Machines and

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-Low voltage ride through capability augmentation of a hybrid micro-grid system is presented in this paper which reflects enhanced reliability in the system. The control scheme involves parallel connected multiple ac-dc bidirectional converters. When the microgrid system is subjected to a severe voltage dip by any transient fault single power converter may not be able to provide necessary reactive power to overcome the severe voltage dip. This paper discusses the control strategy of additional power converter connected in parallel with main converter to support extra reactive power to withstand the severe voltage dip. During transient fault, when the terminal voltage crosses 90% of its pre-fault value, additional converter comes into operation. With the help of additional power converter, the micro-grid system withstands the severe voltage fulfilling the grid code requirements. This multiple converter scheme provides the micro-grid system the capability of low voltage ride through which makes the system more reliable and stable.

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Section: Wind Turbine Modelingmentioning

confidence: 99%

Stability Enhancement of a Hybrid Micro-grid System in Grid Fault Condition

Ambia

Al‐Durra

Muyeen

2013

Journal of international Conference on Electrical Machines and

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“…The aerodynamic power captured by the wind is given by (1).Tip Speed Ratio(λ) and power co efficient (C P ) can be expressed as (2) , (3) , (4) [9][10][11][12][13].…”

Section: A Wind Turbine Modelmentioning

confidence: 99%

A new control strategy for smoothing of wind farm output using short-term ahead wind speed prediction and Flywheel energy storage system

Islam

Hasanien

Al‐Durra

et al. 2012

2012 American Control Conference (ACC)

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Abstract-With the increased integration of wind energy into power networks it has become more important to have a reliable system for mitigating the fluctuations of output power supplied to the grid. This paper proposes a new control scheme to smooth the output power fluctuations of an aggregated wind firm using Flywheel energy storage system (FESS) and shortterm ahead prediction of wind speed. In the proposed system, the kinetic energy of the FEES is utilized to smooth the output power fluctuations of wind farm. In addition, the stored energy of FESS is utilized in most efficient way by correcting the power reference using prediction base control. This helps to reduce the overall system cost by keeping the size of the energy storage system at minimum. The effectiveness of the proposed control is verified by using PSCAD/EMTDC.

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“…The generator parameters and excitation circuits are given in [10]. The SDBR is connected to the stator circuit of the DFIG as shown in Fig.…”

Section: Wind Turbine Modelmentioning

confidence: 99%

“…In [1,6], a crowbar was used to improve the FRT of DFIG, while in [7,8], a DC-chopper was used. The strategy of combining the crowbar system and the DC-chopper system was previously studied in [9], while a comparative study of both protection systems was reported in [10]. A static series compensator (SSC) or a dynamic voltage restorer (DVR) [11][12][13] and STATCOM [14] were used to improve the FRT of the DFIG.…”

Section: Introductionmentioning

confidence: 99%

Application of SDBR with DFIG to augment wind farm fault ride through

Okedu

Muyeen

Takahashi

et al. 2011

2011 International Conference on Electrical Machines and Systems

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-This paper proposes an application of series dynamic braking resistor (SDBR) connected to the stator side of a doubly fed induction generator (DFIG), for enhancing fault ride through (FRT) capability. Two schemes were investigated; the first scheme uses a bypass switch to show the effect of the SDBR magnitude, while the second one uses a circuit breaker to determine the best insertion time and duration of operation of the SDBR, considering the best SDBR resistance obtained in the first scheme. The proposed schemes were then applied to stabilize a DFIG. Simulation analysis by using PSCAD/EMTDC shows that the SDBR can substantially improve the FRT of the DFIG. It also shows that the size of the SDBR should be determined carefully because large value may worsen the system performance during a grid fault.

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Comparative Study between Two Protection Schemes for DFIG-based Wind Generator Fault Ride Through

Cited by 22 publications

References 13 publications

Stability Enhancement of a Hybrid Micro-grid System in Grid Fault Condition

Stability Enhancement of a Hybrid Micro-grid System in Grid Fault Condition

A new control strategy for smoothing of wind farm output using short-term ahead wind speed prediction and Flywheel energy storage system

Application of SDBR with DFIG to augment wind farm fault ride through

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