Reactive Power Management in Wind Power Systems
Summary
Reactive power management is pivotal to the stable integration of wind energy into modern electrical grids. As wind turbines displace conventional synchronous generators, the inherent inertia and voltage support traditionally provided by large rotating machines must be replicated through power electronics and control schemes. Wind farms employ converters to modulate reactive current injection, thereby regulating grid voltage, meeting code requirements for low-voltage ride-through (LVRT), and enhancing network stability under stressed conditions. Centralised and decentralised strategies coexist: centralised supervisory controllers coordinate reactive power dispatch across all turbines, while local controllers adjust converter settings in real time to balance active and reactive outputs. Aggregated models of wind power plants enable operators to predict reactive capability limits, optimise loss minimisation in collector systems and inform decisions on static var compensator placement. Offshore installations further rely on voltage-source converter high-voltage DC links to share reactive support between wind clusters and onshore networks. Overall, reactive power management in wind power systems ensures voltage regulation, loss reduction and reliable grid operation as renewable penetration continues to rise globally.
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Reactive Power Management in Wind Power Systems publication trend
The graph below shows the total number of articles in reactive power management in wind power systems across all publications each year (not limited to Nature Index journals).
Technical terms
Reactive power: The component of electrical power that oscillates between source and load, used to regulate voltage and maintain system stability.
Doubly-fed induction generator (DFIG): A wind turbine generator configuration that allows independent control of active and reactive power via back-to-back converters.
Permanent magnet synchronous generator (PMSG): A generator using permanent magnets on the rotor, offering high efficiency and controllability of reactive power through the converter interface.
Voltage-source converter (VSC): A power electronic device that converts between AC and DC, enabling precise control of active and reactive power flow in grid connections.
Low-voltage ride-through (LVRT): A grid code requirement mandating that wind turbines remain connected and support voltage during short-term voltage sags.
References
- Reactive Power Capability Model of Wind Power Plant Using Aggregated Wind Power Collection System. Energies (2019).
- Reactive Power Optimal Control of a Wind Farm for Minimizing Collector System Losses. Energies (2018).
- Enhanced Wind Power Plant Control Strategy During Stressed Voltage Conditions. IEEE Access (2020).
- Adaptive Gains Control Scheme for PMSG-Based Wind Power Plant to Provide Voltage Regulation Service. Energies (2019).
- Optimal Power Transmission of Offshore Wind Power Using a VSC-HVdc Interconnection. Energies (2017).
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