Inertial response of variable speed wind turbines

Morren, Johan; Pierik, J.; Haan, S.W.H. de

doi:10.1016/j.epsr.2005.12.002

Cited by 405 publications

(259 citation statements)

References 3 publications

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“…A washout filter is also used in [20] to make WTs only act in a transient way using the stored kinetic energy. [21] proposes another different control scheme to create inertial response, that is, the additional torque setpoint is based on the absolutely deviation of the frequency from the nominal value, i.e., ΔT=Kf (fg -fgref) as Fig. 6 (c).…”

Section: Attaching Supplementary Signal Into Power Controlmentioning

confidence: 99%

Enabling Inertial Response of Variable-Speed Wind Turbines: A Survey and New Perspectives

Shang

2016

Preprint

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Abstract:With the rapid development of wind power generations, the inertial response of wind turbines (WTs) are widely concerned recently, which is important for grid frequency dynamic and stability. This paper recognizes and understands the inertial response of type-3 and type-4 WTs from the view of equivalent internal voltage, in analogy with typical synchronous generators (SGs). Due to the dynamic of the equivalent inertial voltage different from SGs, the electromechanical inertia of WTs is completely hidden. The rapid power control loop and synchronization control loop is the main reasons that the WT's inertial response is disenabled. On the basis of the equivalent internal voltage's dynamic, the existing inertia control method for WTs are reviewed and summarized as three approaches from the view of WT's control, i.e. optimizing the power control or synchronization control or both. At last, the main challenges and issues of these inertia controls are attempted to explain and address.

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Section: Attaching Supplementary Signal Into Power Controlmentioning

confidence: 99%

Enabling Inertial Response of Variable-Speed Wind Turbines: A Survey and New Perspectives

Shang

2016

Preprint

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“…Even though the rotational speed of the generator is 80 -100 times higher than the rotor blades when a gearbox is present, most of the kinetic energy is coming from the rotor blades due to their high inertia [4]. The inertia of the blades can be expressed in function of the rated power [5]:…”

Section: B Kinetic Energy Storage In Wind Turbinesmentioning

confidence: 99%

Frequency support by wind power plants in isolated grids with varying generation mix

Tielens

Mohajerpoor

Μαρινόπουλος

et al. 2012

2012 IEEE Power and Energy Society General Meeting

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Abstract-Increasing wind power penetration in power systems has resulted in an urgent need for the assessment of their impact on grid security. Besides the participation in voltage control, there also exists a growing interest in the delivering of other ancillary services like power-frequency control. This paper investigates further the technical feasibility of delivering frequency support with wind turbines in a small power system. Different control mechanisms are elaborated in Matlab/Simulink to deliver frequency support in the case where the turbines have a power reserve available and in the case where they are operating at maximum available power. Also the influence of the generation mix is examined. Results reveal that the displacement of conventional generation with wind power results in a deterioration of the frequency response. However, due to the implementation of the different control mechanisms presented in this paper for delivering inertial response and primary control, the frequency stability is improved.

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“…Mechanical inertia in wind turbine power generation plays a significant role by limiting the rate at which the system can respond to changing wind conditions, for better or for worse. There are many examples in literature on modeling the effects of inertia ( [11], [12], [13]) and because of the obvious and significant effect it has on the frequency response of the system, it was included in this emulator as a component of the software simulation. This is referred to as a "one-mass" model.…”

Section: Literature Surveymentioning

confidence: 99%

Emulation of a 1.5MW wind turbine with a DC motor

Hardy

Jewell

2011

2011 IEEE Power and Energy Society General Meeting

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Abstract-In order to provide a testing environment for generator control strategies, a wind turbine emulator was developed. First, a mathematical model was developed for the a 1.5MW wind turbine generator based on available modeling data. Using this data a function relating maximum power output and wind speed was developed along with a one-mass model of the turbine. The model was implemented in a software simulation along with controllers for a DC motor acting as the wind turbine and a dynamometer acting as the generator. The software simulation was implemented in LabVIEW and read in a data file containing high sample rate (20 Hz) wind speed data, calculated the optimal power from that wind speed, and generated control signals for the DC motor and dynamometer.The effectiveness of the controller was found by calculating the mean-square error between the optimal power calculated by the simulation turbine model and the actual power produced by the DC motor/dynamometer combination. Two 800 second wind speed data files were used as test inputs for the emulator: a lowspeed low-frequency wind profile and a turbulent or varyingspeed wind profile. The results of the controller development using these two wind speeds show that the turbine inertia is a significant factor in following the optimal power output of a wind turbine. The time constant of the generator speed-tracking function specified in the modeling data also plays a significant role in how quickly the system can respond to changes in wind speed.

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Inertial response of variable speed wind turbines

Cited by 405 publications

References 3 publications

Enabling Inertial Response of Variable-Speed Wind Turbines: A Survey and New Perspectives

Enabling Inertial Response of Variable-Speed Wind Turbines: A Survey and New Perspectives

Frequency support by wind power plants in isolated grids with varying generation mix

Emulation of a 1.5MW wind turbine with a DC motor

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