Dynamic reserve allocation for system contingency by DFIG wind farms

Chang-Chien, Le-Ren; Hung, C.-C.; Yin, Yao-Ching

doi:10.1109/pes.2008.4596164

Cited by 14 publications

(16 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Therefore, it is essential that the wind turbine generators (WTGs) must participate in frequency regulation in the changing power system scenario. [3][4][5] In literature, 4,5,14,15 the authors have suggested variable droop control strategies instead of a fixed droop parameter for improving the primary frequency performance of WTGs. Hence, the inertia and droop controls are emulated in wind farms by implementing the frequency-sensitive supplementary control loops to support the frequency regulation in the renewed grid code requirements.…”

Section: Introductionmentioning

confidence: 99%

Lagrange interpolating polynomial–based deloading control scheme for variable speed wind turbines

Senapati

Pradhan

Nayak

et al. 2019

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

Summary In this paper, an adaptive deloading scheme is proposed for enhancing the output power from the deloaded variable speed wind turbine generator (VSWTG). The deloading operation of a wind turbine generator (WTG) creates a reserve power margin at its maximum power point operation that can be utilized for stabilizing the frequency deviations of the power system during system contingencies. The output power of the deloaded WTG is regulated dynamically during the system events for improving the primary frequency response. The nonlinear power characteristic curve of the wind turbine is treated with a Lagrange interpolating polynomial (LIP) technique for increasing the output power of the deloaded WTG. Moreover, LIP‐based deloading of WTG contributes a better frequency dynamic performance during different power system scenarios such as the fluctuations in wind speed and change in load than the traditional control scheme. Due to the smoothing in frequency response with a faster settling time, the proposed LIP‐based deloading scheme can comply with the necessities of the grid codes of the wind‐integrated power system. The real‐time hardware‐in‐the‐loop (HIL) simulation results are exhibited to validate the proposed deloading methodology in support of the theory. The HIL platform is realized by using the real‐time simulator manufactured by OPAL‐RT Technologies.

show abstract

Section: Introductionmentioning

confidence: 99%

Lagrange interpolating polynomial–based deloading control scheme for variable speed wind turbines

Senapati

Pradhan

Nayak

et al. 2019

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

show abstract

“…While wind generators are gradually replacing fossil-fuel generating plants, the capacities for frequency control are becoming lower [1][2][3]. Conventional wind generators operate at the maximum power point to extract as much wind power as possible, and do not participate in the frequency control.…”

Section: Introductionmentioning

confidence: 99%

On deloading control strategies of wind generators for system frequency regulation

Bao

2014

Int. Trans. Electr. Energ. Syst.

View full text Add to dashboard Cite

Summary With the increasing penetration of wind power, the frequency stability of the grid is facing challenge. Deloaded wind generators operate at lower than the maximum available power, to create power margins for frequency regulation. In the case of frequency decrease, deloaded wind generators can contribute to frequency control by adding power. However, if the wind turbines run out of their power margins, the system suffers from instability problem. Based on analyzing the stability conditions of the existing deloading control methods, this paper proposes an improved deloading control method that enhanced both stability and effectiveness. Simulation results validate the effectiveness of the proposed method. Copyright © 2014 John Wiley & Sons, Ltd.

show abstract

“…The impact of utilizing both additional control loops on primary frequency response is investigated [7]- [8]. On the other hand, T 978-1-4799-8315-5/14/$31.00© 2014 IEEE deloading control can provide the wind power reserve to support frequency event in sub-optimal mode instead of Maximum Power Point Tracking (MPPT) operation mode [9]- [10]. All above controllers can be installed in the power electronic converter of the variable-speed wind turbines and can provide the participation of wind turbines in short term primary frequency control for the few tens of seconds due to the limitation in stored kinetic energy.…”

Section: Introductionmentioning

confidence: 99%

Investigating the impacts of wind power contribution on the short-term frequency performance

Ataee

Khezri

Feizi

et al. 2014

2014 Smart Grid Conference (SGC)

View full text Add to dashboard Cite

According to the environmental concerns, the utility of renewable energy is rapidly growing up. Recently, wind energy has had a significant proportion in renewable power resources. As wind power penetration increases, power industry tends to replace conventional generation units with the wind power resources. Modern wind energy conversion machines are not able to participate in frequency response since the machines are decoupled from the grid by back-to-back voltage based converters. In spite of providing the ability for wind generation to contribute in frequency regulation, the effect of this contribution is not entirely perceived especially at different wind power penetration. This paper investigates the impact of the inertia, primary frequency response (PFR) and combination of those control procedures that provided based on fast primary control by wind turbines on frequency response of updated IEEE-39 bus power system. The simulation results show the significant improvement in frequency performance with contribution of wind farms in primary frequency regulation.I.

show abstract

Dynamic reserve allocation for system contingency by DFIG wind farms

Cited by 14 publications

References 0 publications

Lagrange interpolating polynomial–based deloading control scheme for variable speed wind turbines

Lagrange interpolating polynomial–based deloading control scheme for variable speed wind turbines

On deloading control strategies of wind generators for system frequency regulation

Investigating the impacts of wind power contribution on the short-term frequency performance

Contact Info

Product

Resources

About