TY - JOUR
T1 - Modal Shift Evaluation and Optimization for Resonance Mechanism Investigation and Mitigation of Power Systems Integrated with FCWG
AU - Luo, Jianqiang
AU - Bu, Siqi
AU - Zhu, Jiebei
AU - Chung, C. Y.
N1 - Funding Information:
This work was supported in part by the National Natural Science Foundation of China for the Research Project under Grant 51807171, in part by the Guangdong Science and Technology Department for the Research Project 2019A1515011226, in part by the Hong Kong Research Grant Council for the Research Project under Grants 25203917, 15200418 and 15219619, and in part by theDepartment of Electrical Engineering, TheHongKong Polytechnic University for the Start-up Fund Research Project under Grant 1-ZE68. Paper no.TPWRS-01548-2019.
Funding Information:
Manuscript received October 11, 2019; revised January 18, 2020; accepted February 15, 2020. Date of publication February 21, 2020; date of current version August 24, 2020. This work was supported in part by the National Natural Science Foundation of China for the Research Project under Grant 51807171, in part by the Guangdong Science and Technology Department for the Research Project 2019A1515011226, in part by the Hong Kong Research Grant Council for the Research Project under Grants 25203917, 15200418 and 15219619, and in part by the Department of Electrical Engineering, The Hong Kong Polytechnic University for the Start-up Fund Research Project under Grant 1-ZE68. Paper no.TPWRS-01548-2019. (Corresponding author: Siqi Bu.) Jianqiang Luo and Siqi Bu are with the Department of Electrical Engineering, Hong Kong Polytechnic University, Kowloon, Hong Kong (e-mail: jq.luo@ connect.polyu.hk; [email protected]).
Publisher Copyright:
© 1969-2012 IEEE.
PY - 2020/9
Y1 - 2020/9
N2 - The integration of full converter-based wind power generation (FCWG, e.g., permanent magnet synchronous generator (PMSG)) not only introduces the PMSG oscillation modes (POMs) but also might excite severe resonances with electromechanical oscillation modes (EOMs) of the power system. In this paper, a two-open-loop-subsystem dynamic model is firstly established to investigate the interactions between the PMSG and the rest of the power system. On this basis, a modal shift evaluation (MSE) method by using bilateral damping torque analysis is proposed to accurately quantify the interaction effect of POMs and EOMs on each other and effectively explain their complex interaction process. Then two important concepts, i.e., modal shift sensitivity (MSS) with respect to various PMSG controller parameters and resonance excitation index (REI) according to a per unit open-loop modal distance indicating the intensity of modal interactions, are derived to dig the essential modal resonance mechanisms. Furthermore, by using MSS and REI as two tools, the modal interaction optimization (MIO) is conducted through POM tuning in order to prevent potential system modal resonance and enhance resonance mode damping for the first time. The optimized modal interaction is validated to be beneficial and effective for the improvement of power system resonance stability.
AB - The integration of full converter-based wind power generation (FCWG, e.g., permanent magnet synchronous generator (PMSG)) not only introduces the PMSG oscillation modes (POMs) but also might excite severe resonances with electromechanical oscillation modes (EOMs) of the power system. In this paper, a two-open-loop-subsystem dynamic model is firstly established to investigate the interactions between the PMSG and the rest of the power system. On this basis, a modal shift evaluation (MSE) method by using bilateral damping torque analysis is proposed to accurately quantify the interaction effect of POMs and EOMs on each other and effectively explain their complex interaction process. Then two important concepts, i.e., modal shift sensitivity (MSS) with respect to various PMSG controller parameters and resonance excitation index (REI) according to a per unit open-loop modal distance indicating the intensity of modal interactions, are derived to dig the essential modal resonance mechanisms. Furthermore, by using MSS and REI as two tools, the modal interaction optimization (MIO) is conducted through POM tuning in order to prevent potential system modal resonance and enhance resonance mode damping for the first time. The optimized modal interaction is validated to be beneficial and effective for the improvement of power system resonance stability.
KW - modal interaction
KW - modal shift sensitivity (MSS)
KW - PMSG
KW - POM tuning
KW - resonance excitation index (REI)
KW - resonance stability
UR - http://www.scopus.com/inward/record.url?scp=85090410884&partnerID=8YFLogxK
U2 - 10.1109/TPWRS.2020.2975631
DO - 10.1109/TPWRS.2020.2975631
M3 - Journal article
AN - SCOPUS:85090410884
SN - 0885-8950
VL - 35
SP - 4046
EP - 4055
JO - IEEE Transactions on Power Systems
JF - IEEE Transactions on Power Systems
IS - 5
M1 - 9006955
ER -