Temporary Primary Frequency Control Support by Variable Speed Wind Turbines— Potential and Applications

Ullah, Nayeem Rahmat; Thiringer, Torbjörn; Karlsson, Daniel

doi:10.1109/tpwrs.2008.920076

Cited by 466 publications

(329 citation statements)

References 9 publications

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“…For the sake of reducing the initial frequency drop, another method proposed by [6] is also implemented to show its performance during the initial stages of the load increase. An extra signal is the added on top of the power reference prior to the load disturbance to extract the rotational energy in accordance with a pre-defined pattern similar to where P e0 is the pre-fault value of the maximum power point tracker.…”

Section: B Instant Power Supportmentioning

confidence: 99%

“…The effect of wind power penetration level The hydro generator model is adopted (since it has a slow and a less preferable initial behavior [10]) and the basic VSWT-model is adopted from [6] connected as presented in Figure 3. To investigate the effect of a frequency dependent load, a load model is implemented based on [11].…”

Section: Wind-hydro System Modelingmentioning

confidence: 99%

“…Case studies Instant Power Support and Inertia Emulation Support is then subjected to a base case of 20 and 50% WPR, a rotation of 0.9 pu at a constant wind speed of 7.5 m/s at this time the WT output power is 0.3 pu. Data on generators can be found in [6] and [10]. A load step increase of 0.1 pu is simulated at 0 s. Table I shows five cases are presented with 20% or 50 % WPR, except for one reference case using 100 % hydro power production, are to be evaluated.…”

Section: Simulation and Data Descriptionmentioning

confidence: 99%

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Frequency support by wind farms in islanded power systems with high wind power penetration

Persson

Chen

Carlson

2013

2013 IEEE Grenoble Conference

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Abstract-The purpose of this paper is to investigate the frequency support in low inertia systems that could be provided by a wind farm during load mismatch. Temporary instant inertia support and inertia emulation support are evaluated and compared. An improved control strategy is presented giving quick power delivery even during low wind speeds. The proposed model can support a loss of generation of 0.1 pu with a wind power penetration of 20 % without violating the 49 Hz limit. The paper presents this as a solution to allow wind turbines to act on frequency deviations in the fast manner before other production units has caught up and started to produce in accordance to the new power level required. The temporary frequency drop for a wind penetration of 50 % was improved from 47.33 Hz, for the uncontrolled case, to 49.10 Hz utilizing the suggested adaption of inertia support.

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Section: B Instant Power Supportmentioning

confidence: 99%

Section: Wind-hydro System Modelingmentioning

confidence: 99%

Section: Simulation and Data Descriptionmentioning

confidence: 99%

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Frequency support by wind farms in islanded power systems with high wind power penetration

Persson

Chen

Carlson

2013

2013 IEEE Grenoble Conference

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“…The VSWT technology presents flexibility for very fast (decoupled) control of generated active and reactive powers [2,[5][6][7][8][9]. With these characteristics, VSWT can be used to provide ancillary services which are normally provided by conventional synchronous generators.…”

Section: Introductionmentioning

confidence: 99%

“…[5][6][7][8][9]. With the wind turbine extracting the available power from the wind, it is possible to generate a temporary active power overproduction, which mainly depends on rotational speed variations, mechanical inertia and wind speed conditions.…”

Section: Introductionmentioning

confidence: 99%

Variable speed wind turbines capability for temporary over-production

Tarnowski

Kjar

Sørensen

et al. 2009

2009 IEEE Power &Amp; Energy Society General Meeting

136

133

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Research on the control strategy of energy storage participation in power system frequency regulation

Gao

et al. 2020

Int Trans Electr Energ Syst

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Large-scale wind power integrated the power system may result in a challenge for frequency regulation because of the variable nature of wind. Energy storage system (ESS) is an effective measure against the challenge of frequency regulation caused by wind power. Aiming to solve the problem that the response time of traditional turbines can hardly meet frequency regulation demand, this article proposes a strategy for ESS which can adaptively adjust the output coefficient of ESS according its state of charge (SOC). And the relationship between the frequency regulation effect and the size of ESS is established. Firstly, the reference power of ESS is obtained based on fuzzy theory. Secondly, the principle of giving priority to ESS is adopted, and the actual output is determined according to the SOC. Finally, the output of the thermal power unit is determined based on the penalty power of ESS. The case analyzed shows that the proposed strategy has a significant effect on the improvement of the frequency deviation and the CPS1, and the maintenance of SOC. Moreover, it is shown that the 100 MW/50 MWh ESS can increase the CPS1 index by 57.1% in response to the AGC frequency regulation.

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Temporary Primary Frequency Control Support by Variable Speed Wind Turbines— Potential and Applications

Cited by 466 publications

References 9 publications

Frequency support by wind farms in islanded power systems with high wind power penetration

Frequency support by wind farms in islanded power systems with high wind power penetration

Variable speed wind turbines capability for temporary over-production

Research on the control strategy of energy storage participation in power system frequency regulation

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