Evaluation of DFIGs’ Primary Frequency Regulation Capability for Power Systems with High Penetration of Wind Power
Open Access
- 24 November 2020
- Vol. 13 (23), 6178
- https://doi.org/10.3390/en13236178
Abstract
Accompanying the continuous increase in wind power penetration, the power system inertia is reduced, and the system frequency regulation performance deteriorates. Wind turbine generators are required to participate in primary frequency regulation (PFR) to support system frequency. Here, the PFR capability of the widely-used doubly-fed induction generator (DFIG) is evaluated to estimate the participation of the DFIG in system frequency control. The frequency regulation model of the DFIG is established and briefly discussed. The equivalent PFR droop coefficient is then deduced from the model using a small signal increment method to evaluate the DFIG’s PFR capability. Key factors affecting the equivalent droop coefficient are studied, and the droop control is optimized to keep the equivalent droop coefficient in the desired range. The proposed method is verified utilizing a provincial power grid model of China.This publication has 22 references indexed in Scilit:
- Smart frequency control in low inertia energy systems based on frequency response techniques: A reviewApplied Energy, 2020
- Continuous Under-Frequency Load Shedding Scheme for Power System Adaptive Frequency ControlIEEE Transactions on Power Systems, 2019
- DFIG primary frequency regulation strategy with optimal dynamic droop control under variable wind speedsIOP Conference Series: Earth and Environmental Science, 2018
- Enhancement of DFIG performance at high wind speed using fractional order PI controller in pitch compensation loopInternational Journal of Electrical Power & Energy Systems, 2018
- Dynamic Droop Control for Wind Turbines Participating in Primary Frequency Regulation in MicrogridsIEEE Transactions on Smart Grid, 2017
- Adaptation virtual inertia control strategy of DFIG and assessment of equivalent virtual inertia time constant of connected power systemThe Journal of Engineering, 2017
- Equivalent inertial time constant of doubly fed induction generator considering synthetic inertial controlJournal of Renewable and Sustainable Energy, 2016
- Small signal stability analysis of power systems with DFIG based wind power penetrationInternational Journal of Electrical Power & Energy Systems, 2014
- Closure to Discussion on “Primary Frequency Regulation by Deloaded Wind Turbines Using Variable Droop”IEEE Transactions on Power Systems, 2013
- Participation of Doubly Fed Induction Wind Generators in System Frequency RegulationIEEE Transactions on Power Systems, 2007