Research on Mathematical Model of Energy Storage Assisted Wind Turbine Frequency Regulation Control Strategy

This paper proposes an improved frequency regulation strategy for the Doubly-Fed Induction Generator (DFIG) to mitigate the impact of wind power integration on system frequency. An energy storage system is used on the wind side to participate in the frequency regulation. The influence of wind power...

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Bibliographic Details
Published in:Journal of physics. Conference series 2024-07, Vol.2800 (1), p.12035
Main Author: Yuan, Weiwei
Format: Article
Language:English
Subjects:
Control strategy
Control systems
Doubly-fed wind turbine frequency regulation control
Energy storage
Energy storage devices
Frequency control
Impact analysis
Induction generators
Primary frequency regulation
Rotor speed
State of charge
Turbines
Wind effects
Wind power
Wind speed
Wind turbines
Wind-storage integrated control
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Summary:This paper proposes an improved frequency regulation strategy for the Doubly-Fed Induction Generator (DFIG) to mitigate the impact of wind power integration on system frequency. An energy storage system is used on the wind side to participate in the frequency regulation. The influence of wind power integration on the power system frequency is analyzed and an improved frequency control strategy for the DFIG is proposed. A control strategy for energy storage devices to support wind turbine frequency control is proposed. An energy storage device model is established that considers power correction based on the state of charge to avoid excessive charging and discharging. According to the operating state of the DFIG, a control strategy for the frequency regulation of the energy storage device is proposed. According to different wind speeds, a control strategy is proposed for the participation of the joint wind storage system in the frequency regulation. This control strategy can provide frequency support to the system when the wind turbine cannot participate in frequency regulation according to the different operating conditions of the wind turbine. After the wind turbine uses the improved frequency control strategy, it accelerates the recovery of the DFIG rotor speed while avoiding a secondary drop in the system frequency. In addition, when the energy storage device has a poor state of charge and the system frequency is good, it charges to restore the state of charge.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2800/1/012035