Luo, J.; Zou, Y.; Bu, S.; Karaagac, U. Converter-Driven Stability Analysis of Power Systems Integrated with Hybrid Renewable Energy Sources. Energies 2021, 14, 4290, doi:10.3390/en14144290.
Luo, J.; Zou, Y.; Bu, S.; Karaagac, U. Converter-Driven Stability Analysis of Power Systems Integrated with Hybrid Renewable Energy Sources. Energies 2021, 14, 4290, doi:10.3390/en14144290.
Luo, J.; Zou, Y.; Bu, S.; Karaagac, U. Converter-Driven Stability Analysis of Power Systems Integrated with Hybrid Renewable Energy Sources. Energies 2021, 14, 4290, doi:10.3390/en14144290.
Luo, J.; Zou, Y.; Bu, S.; Karaagac, U. Converter-Driven Stability Analysis of Power Systems Integrated with Hybrid Renewable Energy Sources. Energies 2021, 14, 4290, doi:10.3390/en14144290.
Abstract
Various renewable energy sources such as wind power and photovoltaic (PV) have been increasingly integrated into the power system through power electronic converters in recent years. However, power electronic converter-driven stability issues under specific circumstances, for instance, modal resonances might deteriorate the dynamic performance of the power systems or even threaten the overall stability. In this paper, the integration impact of a hybrid renewable energy source (HRES) system on modal interaction and converter-driven stability is investigated in an IEEE 16-machine 68-bus power system. Firstly, an HRES system is introduced, which consists of full converter-based wind power generation (FCWG) and full converter-based photovoltaic generation (FCPV). The equivalent dynamic models of FCWG and FCPV are then established, followed by the linearized state-space modeling. On this basis, converter-driven stability analyses are performed to reveal the modal resonance mechanisms of the interconnected power systems and the modal interaction phenomenon. Additionally, time-domain simulations are conducted to verify effectiveness of dynamic models and support the converter-driven stability analysis results. To avoid detrimental modal resonances, an optimization strategy is further proposed by retuning the controller parameters of the HRES system. The overall results demonstrate the modal interaction effect between external AC power system and the HRES system and its various impacts on converter-driven stability.
Keywords
Converter-driven stability; hybrid renewable energy source (HRES) system; modal resonance; full converter-based wind power generation (FCWG); full converter-based photovoltaic generation (FCPV)
Subject
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.