TY - JOUR
T1 - Converter-driven stability analysis of power systems integrated with hybrid renewable energy sources
AU - Luo, Jianqiang
AU - Zou, Yiqing
AU - Bu, Siqi
AU - Karaagac, Ulas
N1 - Funding Information:
Funding: This research was funded by National Natural Science Foundation of China for the Research Project (52077188), Guangdong Science and Technology Department for the Research Project (2019A1515011226), Hong Kong Research Grant Council for the Research Projects (25203917), (15200418) and (15219619), and Department of Electrical Engineering, The Hong Kong Polytechnic University for the Start-up Fund Research Project (1-ZE68).
Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/7/2
Y1 - 2021/7/2
N2 - Renewable energy sources such as wind power and photovoltaics (PVs) have been increas-ingly integrated into the power system through power electronic converters in recent years. However, power electronic converter-driven stability has 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 work, the integration impact of a hybrid renewable energy source (HRES) system on modal interaction and converter-driven stability was investigated in an IEEE 16-machine 68-bus power system. In this paper, 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 linearized state-space modeling. On this basis, converter-driven stability analysis was performed to reveal the modal resonance mechanisms between different renewable energy sources (RESs) and weak grids in the interconnected power systems and the multi-modal interaction phenomenon. Additionally, time-domain simulations were conducted to verify the effectiveness of dynamic models and support the converter-driven stability analysis results. To avoid detrimental modal resonances, a multi-modal and multi-parametric optimization strategy is further proposed by retuning the con-troller parameters of the multi-RESs in the HRES system. The overall results demonstrate the modal interaction effect between the external AC power system and the HRES system and its various impacts on converter-driven stability.
AB - Renewable energy sources such as wind power and photovoltaics (PVs) have been increas-ingly integrated into the power system through power electronic converters in recent years. However, power electronic converter-driven stability has 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 work, the integration impact of a hybrid renewable energy source (HRES) system on modal interaction and converter-driven stability was investigated in an IEEE 16-machine 68-bus power system. In this paper, 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 linearized state-space modeling. On this basis, converter-driven stability analysis was performed to reveal the modal resonance mechanisms between different renewable energy sources (RESs) and weak grids in the interconnected power systems and the multi-modal interaction phenomenon. Additionally, time-domain simulations were conducted to verify the effectiveness of dynamic models and support the converter-driven stability analysis results. To avoid detrimental modal resonances, a multi-modal and multi-parametric optimization strategy is further proposed by retuning the con-troller parameters of the multi-RESs in the HRES system. The overall results demonstrate the modal interaction effect between the external AC power system and the HRES system and its various impacts on converter-driven stability.
KW - Converter-driven stability
KW - Full converter-based photovoltaic generation (FCPV)
KW - Full converter-based wind power generation (FCWG)
KW - Hybrid renewable energy source (HRES) system
KW - Multi-modal interaction
UR - http://www.scopus.com/inward/record.url?scp=85111168669&partnerID=8YFLogxK
U2 - 10.3390/en14144290
DO - 10.3390/en14144290
M3 - Journal article
AN - SCOPUS:85111168669
SN - 1996-1073
VL - 14
JO - Energies
JF - Energies
IS - 14
M1 - 4290
ER -
