Modeling of Wind Turbines Based on Doubly-Fed Induction Generators for Power System Stability Studies

Erlich, I.; Kretschmann, J.; Fortmann, Jens; Mueller-Engelhardt, S.; Wrede, H.

doi:10.1109/tpwrs.2007.901607

Cited by 218 publications

(42 citation statements)

References 12 publications

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“…The model generally used for the DFIG is the Park's model [9]. For the simplification of the study, the rotor variables will be referred to as the stator:…”

Section: A Dfig Modelmentioning

confidence: 99%

“…A novel control strategy for smoothing the output power of DFIG and protect the power converter has been presented in [8]. In [9] and [10] a DC chopper is used to limit overcharge during low grid voltage. A battery energy storage system (BESS) is used to absorb or inject the power for smoothing the power fluctuations due to the variation of the wind speed and the excess of power transfer to the DC bus via the RSC during the fault [11]- [12]- [16].…”

Section: Introductionmentioning

confidence: 99%

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Control of Battery Energy Storage System for Wind Turbine based on DFIG during Symmetrical Grid Fault

Riouch¹,

Bachtiri²,

Alamery³

et al. 2024

RE&PQJ

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Abstract. This paper presents a specific control strategy of Doubly Fed Induction Generator (DFIG) conceived for a wind turbine system operating under electrical grid disturbance. Two mains aspects related to DFIG behavior are studied: fluctuation of its output power and Low-Voltage Ride Trough capability (LVRT) of wind turbine generator system. In order to smooth the output power injected in the electrical grid and to improve dynamic behavior of a variable speed wind turbine generator system under symmetrical voltage dip, a control strategy of the Battery Energy Storage System (BESS) is proposed. Simulations have been carried out in Matlab environment, and the results validate the effectiveness of our control.

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“…The model generally used for the DFIG is the Park's model [9]. For the simplification of the study, the rotor variables will be referred to as the stator:…”

Section: A Dfig Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Control of Battery Energy Storage System for Wind Turbine based on DFIG during Symmetrical Grid Fault

Riouch¹,

Bachtiri²,

Alamery³

et al. 2024

RE&PQJ

View full text Add to dashboard Cite

show abstract

“…In this paper, seven linguistic variables for each input variable are used. These are chosen as: NL (negative large), NM (negative medium), NS (negative small), EZ (zero), PS (positive small), PM (positive medium), and PL (positive large) [13][14][15].…”

Section: B Fuzzy Logic Controllermentioning

confidence: 99%

Intelligent Controller Based STATCOM for Improving Dynamic Stability of a Hybrid Power System

Musunuru¹

2017

IJRASET

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Renewable energy sources, which are expected to be a promising alternative energy source, can bring new challenges when connected to the power grid. A large amount of wind turbines are connected to the electrical power system in order to mitigate the negative environmental consequence of conventional electricity generation. While connecting the wind turbine to grid it is important to understand the source of disturbance that affects the power quality. FACTS devices are found to be very effective for stability enhancement followed by a disturbance. Static Synchronous Compensator (STATCOM) which is a shunt device of FACTS family is efficient in regulating voltage either by absorbing or by generating reactive power. STATCOM can provide fast and efficient reactive power support to maintain power system voltage stability. This paper proposes a Hybrid control model for STATCOM that controls the voltage during a disturbance. The proposed controller is implemented to the STATCOM under MATLAB/SIMULINK environment. In the simulation test, the hybrid control shows consistent excellence under a severe disturbance like three phase fault. Keywords: STATCOM, power quality, FACTS, power grid, hybrid controller. I.INTRODUCTION Electric power system is a complex system in its structure and operation is facing many challenges day by day. The major problem in power system is its instability. Power system stability is the capability of the system to maintain an operating equilibrium point after being subjected to a disturbance for given initial operating conditions. Traditionally voltage regulation is performed by the excitation system and thereby help in controlling the system voltage. Suitable devices like Automatic Voltage Regulators (AVR) are used for the regulation of generated voltage. AVR's normally maintain the generator voltage magnitude at a specified level. AVR's are extensively used on the dynamic or steady state stability of the power system as low frequencies oscillations persist for a long period and may affect the capability of power transfer. Electrical power demand is rising at a very higher rate because of rapid industrial development. In order to satisfy the demand, power transmission has to be raised along with the existing facilities. Thus it is essential to concentrate on the power flow control. The power system should be flexible to adapt itself to any momentary changes in system conditions. In an AC power system, there must be a balance between the generated power and variations in load demand while keeping the system frequency and voltage levels as constant. If the generation is not sufficient, the voltage and frequency drop and the load decreases to balance the total generation minus losses in transmission. But there are only a few percent margins for such a self-regulation. Hence the system is collapsed. Generator excitation controller normally improves stability for smaller faults but not suitable for larger faults that occur near to generator terminals. Thus, traditional methods have to be rev...

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“…If these exceed the limit, then it will destroy the converter if no protection is provided. Following are the various control strategies used for the DFIG WTs.In crowbar protection method [3], during the faults, the rotor side converter will be blocked, and the crowbar circuit will be installed across the rotor terminals and it will damp the over-current in the rotor circuit. And thus when fault occurs, the rotor converter and the generator are disconnected from the grid.…”

Section: Control Strategies For Dfig Wind Turbinementioning

confidence: 99%

Comparison of Crowbar Control and Novel Control Methods for DFIG Wind Turbine to Enhance LVRT Capability under Various Faults

T.Madhurantaka¹

2014

IJAREEIE

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This paper presents a comparison between conventional crowbar control and new control method .The new control method includes control for both the rotor and grid side converters to enhance the low-voltage ridethrough (LVRT) capacity of the DFIG WT. By providing suitable control for RSC and GSC converter switching circuit, the parameters voltage, current, real and reactive power, DC link voltage, rotor speed are controlled. In addition to this the pitch control is also provided. With the aid of the grid side control scheme the DC-link voltage fluctuation can been effectively reduced. The new control method for the grid side controller can effectively reduce the high transients that may occur during the faults. This new control can enable both active and reactive supports to the faulted grids from WT which is difficult for the crowbar based control. In this paper the crowbar control scheme is compared with proposed control method and the new method is found to be very effective in achieving LVRT capacity during symmetrical and unsymmetrical fault.

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Modeling of Wind Turbines Based on Doubly-Fed Induction Generators for Power System Stability Studies

Cited by 218 publications

References 12 publications

Control of Battery Energy Storage System for Wind Turbine based on DFIG during Symmetrical Grid Fault

Control of Battery Energy Storage System for Wind Turbine based on DFIG during Symmetrical Grid Fault

Intelligent Controller Based STATCOM for Improving Dynamic Stability of a Hybrid Power System

Comparison of Crowbar Control and Novel Control Methods for DFIG Wind Turbine to Enhance LVRT Capability under Various Faults

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