A Method to Examine the Impact of Grid Connection of the DFIGs on Power System Electromechanical Oscillation Modes

Wei, Du; Bi, Jingtian; Cao, Jun; Wang, H. F.

doi:10.1109/tpwrs.2015.2494082

Cited by 81 publications

(60 citation statements)

References 28 publications

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“…In Ref. , two affecting factors of a DFIG wind turbine on the electromechanical modes, i.e. the change of load flow and the dynamic interactions with the synchronous generator, are separately investigated.…”

Section: Impact Of Dfig Wind Turbine On the Power System Dynamicmentioning

confidence: 99%

Review of DFIG wind turbine impact on power system dynamic performances

Ngamroo

2017

IEEJ Transactions Elec Engng

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Recently, the variable-speed wind turbine with doubly fed induction generator (DFIG) has drawn significant attention because of its many advantages such as small power converter rating, the ability to control the output power, etc. Nevertheless, the large penetration of DFIG wind turbines may affect the power system dynamics. This paper provides a general review of the DFIG wind turbine's impact on power system dynamic performances such as frequency stability, transient stability, small-signal stability, and voltage stability. Besides, ancillary services from the DFIG wind turbine for the power grid, such as frequency support, reactive power, and voltage support, are explained. Especially, the survey emphasizes power oscillation damping methods by the DFIG wind turbine.

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Section: Impact Of Dfig Wind Turbine On the Power System Dynamicmentioning

confidence: 99%

Review of DFIG wind turbine impact on power system dynamic performances

Ngamroo

2017

IEEJ Transactions Elec Engng

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“…However, the steady increase of wind power integration leads to the displacement of conventional synchronous generators (SG), change of system load flow, and other topology changes. These changes could have potential influence on system oscillation modes [6,9]. As more SGs equipped with power system stabilisers (PSSs) are replaced by WTs, the system damping capability will be in declined [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…Over the past few years, considerable research has been done on POD capability of DFIGs by using active or reactive power modulations [4,[7][8][9][10][11][12][13][14][15][16][17][18][19]. In [7,10,12,[15][16][17]19], the auxiliary damping signal produced by the POD controller is attached to the active power reference signal of the active power control loop within rotor side converter (RSC).…”

Section: Introductionmentioning

confidence: 99%

Effects of POD Control on a DFIG Wind Turbine Structural System

Edrah

Zhao

Hung³

et al. 2020

IEEE Trans. Energy Convers.

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This paper investigates the effects power oscillation damping (POD) controller could have on a wind turbine structural system. Most of the published work in this area has been done using relatively simple aerodynamic and structural models of a wind turbine which cannot be used to investigate the detailed interactions between electrical and mechanical components of the wind turbine. Therefore, a detailed model that combines electrical, structural and aerodynamic characteristics of a grid-connected Doubly Fed Induction Generator (DFIG) based wind turbine has been developed by adapting the NREL (National Renewable Energy Laboratory) 5MW wind turbine model within FAST (Fatigue, Aerodynamics, Structures, and Turbulence) code. This detailed model is used to evaluate the effects of POD controller on the wind turbine system. The results appear to indicate that the effects of POD control on the WT structural system are comparable or less significant as those caused by wind speed variations. Furthermore, the results also reveal that the effects of a transient three-phase short circuit fault on the WT structural system are much larger than those caused by the POD controller. control of wind/tidal turbines/farms; (2) grid integration of renewable energy; (3) microgrid; (4) control of fluid-structure interaction with applications to large and flexible wind turbines, highly flexible aircraft, and long-span suspension bridges; (5) control of coupled infinite-dimensional systems. after 24 years' service covering roles as Technical Leader and Technical Specialist responsible for system modelling and wide-area monitoring, generation and system dynamics including impact of wind farms on system stability performance, testing of wind farms and HVDC plant and investigation of system incidents. He led the industry in improving, testing and benchmarking frequency response performance of generating and HVDC plants. He has also collaborated with the industry to develop dynamic demands and battery energy storage for system frequency control services. His power engineering experience is spanning across Utility (National Grid), Consultancy (PB Power and ERA) and Manufacturing (ALSTOM) industries. He is a Chartered Engineer and the Fellow Member of the Institution of Engineering and Technology in the UK.

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“…However, unlike the conventional synchronous generators (CSGs), the integration of wind power generators does bring problems, such as inertia reduction, dynamic interaction complexity, protection inaccuracy [6,[8][9][10]. The unexpected concern on power system stability also draws great attention in this field [6,11,12]. Since FCWG has completely different physical structure from CSGs, its impact mechanism on power system small signal stability needs to be further clarified.…”

Section: Introductionmentioning

confidence: 99%

Strong Resonance Investigation and Suppression in PMSG integrated Power Systems

Luo

Wen

et al. 2020

E3S Web Conf.

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Permanent magnet synchronous generators (PMSGs) with full converters have been widely used in wind power generation due to its superior flexibility and controllability. However, under some circumstance, the oscillation modes of PMSG (POMs) may excite strong resonance with the electromechanical oscillation modes (EOMs) of the power system that degrades the power system small signal stability. In this paper, A two-open-loop subsystem model is firstly derived to analyze the oscillation modes. Then the POMs are investigated with modal analysis, the relationship between POMs and related controllers are clarified. On this basis, the strong resonance between PMSG and the external power system is revealed and identified. Furthermore, a five-step parameter tuning method is proposed to relocate the position of POM as well as suppress the strong resonance. Both modal analysis and time-domain simulations validate the effectiveness of the proposed method.

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A Method to Examine the Impact of Grid Connection of the DFIGs on Power System Electromechanical Oscillation Modes

Cited by 81 publications

References 28 publications

Review of DFIG wind turbine impact on power system dynamic performances

Review of DFIG wind turbine impact on power system dynamic performances

Effects of POD Control on a DFIG Wind Turbine Structural System

Strong Resonance Investigation and Suppression in PMSG integrated Power Systems

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