Windmill modeling consideration and factors influencing the stability of a grid-connected wind power-based embedded generator

Salman, S.K.; Teo, A.L.J.

doi:10.1109/tpwrs.2003.811180

Cited by 237 publications

(60 citation statements)

References 8 publications

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“…D are damping coefficient of the three parts respectively and 12 D the damping coefficient between the blades and the low speed shaft and 23 D the damping coefficient between the low and high speed shaft; 1 K and 2 K are elastic coefficient between the blades and the low speed shaft, the low speed and high speed shaft respectively; aero T is input wind torque from the blade side; em T is the electromagnetic torque of the generator. Based on small signal analysis, the standard state space equation of (1) after it is linearized can be expressed as…”

Section: Drive Train Modelmentioning

confidence: 99%

“…Thus the modelling methods to study dynamic characteristics of DFIG-based wind turbines during the transient process are gaining increasing interests. References [11][12][13] developed a lumped-mass, a twomass and a three-mass drive train model of wind turbine shaft system respectively to model the mechanical system of wind turbines exactly. An available model of DFIG is developed in [14] to study how the model parameters will influence the transient responses of DFIG-based wind plants.…”

Section: Introductionmentioning

confidence: 99%

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Torsional vibration characteristic study of the grid-connected DFIG wind turbine

Xie

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract. This paper studies the torsional vibration characteristics of the grid-connected doubly-fed induction generator (DFIG) wind turbine by small signal analysis method. Firstly a detailed small-signal stability union model of the grid-connected DFIG wind turbine is developed, including the mechanical system and electrical system. To study the dynamic characteristic of the blade, gearbox, low speed and high speed shafts, a three mass shaft model for the mechanical system is adopted. At the same time, small signal models of DFIG, the voltage source converter (VSC) and the transmission line of the electrical system are developed respectively. Then, through calculating the eigenvalues of the state matrix A and the corresponding participation factors, the modal analysis is conducted in the shaft torsional vibration issues. And the impact of the system parameters including the series compensation capacitor, the flat-wave reactor, the PI parameters, especially the speed controller of generator rotor on shaft torsional vibration are discussed. The results show that the speed controller strengthens association between the mechanical system and the electrical system, and also produces a low-frequency oscillation mode.

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Section: Drive Train Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Torsional vibration characteristic study of the grid-connected DFIG wind turbine

Xie

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

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“…DG2 is an environmentally-friendly power generation source which captures the kinetic energy of wind and transfers it to the electrical part through a gearbox [16]. The electrical model of DG2 in d-q frame is given by.…”

Section: Model Of Dg2mentioning

confidence: 99%

Application of cooling, heating loads in an autonomous microgrid as a control strategy

Dahraie

Kermani

Najafi

2015

IJET

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In this paper, a control scheme is proposed for a microgrid. In the proposed scheme, by controlling cooling, heating loads (C/H loads), balance between generation and consumption power is kept, and the frequency remains within its nominal value. Application of storage systems imposes costs, operating and maintenance problems to the microgrid owners. Moreover, the charge and discharge process of batteries causes reduction in their lives time. The dominant concept of this scheme is to control frequency without any storage. In this case, the coincidence of generation and consumption in C/H load technology is not necessary. This control system changes the consumption power of C/H loads and responses to unbalance power of microgrid, fast. Moreover, two indices are defined to assess the performance of the microgrid.

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“…The shaft system of the WTG can be represented either by a two-mass system or by a single lumped-mass system [2], [12], [13]. In the two-mass model, separate masses are used to represent the low-speed turbine and the high-speed generator, and the connecting resilient shaft is modeled as a spring and a damper, as shown in Fig.…”

Section: B Modeling Of the Shaft Systemmentioning

confidence: 99%

Dynamic modeling and control of doubly fed induction generators driven by wind turbines

Wang

2009

2009 IEEE/PES Power Systems Conference and Exposition

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Windmill modeling consideration and factors influencing the stability of a grid-connected wind power-based embedded generator

Cited by 237 publications

References 8 publications

Torsional vibration characteristic study of the grid-connected DFIG wind turbine

Torsional vibration characteristic study of the grid-connected DFIG wind turbine

Application of cooling, heating loads in an autonomous microgrid as a control strategy

Dynamic modeling and control of doubly fed induction generators driven by wind turbines

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