Dynamic interaction analysis and stability improvement method for wind/PV integrated power systems based on damping coefficient sensitivity

被引：0
作者：
Li, Shenghu [1 ,2 ]
Chen, Dong [1 ,2 ]
Ye, Jianqiao [1 ,2 ]
Qi, Nan [1 ,2 ]
Xu, Zhixiong [1 ,2 ]
机构：
[1] School of Electrical Engineering and Automation, Hefei University of Technology, Hefei
[2] Anhui Province Key Laboratory of Renewable Energy Utilization and Energy Saving, Hefei
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2024年 / 52卷 / 16期
基金：
中国国家自然科学基金;
关键词：
damping torque; low-frequency oscillation; sensitivity; transfer function; wind/PV integrated power system;
D O I：
10.19783/j.cnki.pspc.231394
中图分类号：
学科分类号：
摘要：
Dynamic interactions among wind power, photovoltaic (PV), and synchronous generators (SG) affect power system stability. The dynamic interaction mechanism and stabilization enhancement method in the wind/PV integrated power system are studied based on the sensitivity of the damping coefficient. First, the impact of the doubly-fed induction generator (DFIG) and PV generators on the transient response to the SG is determined using linearized expression. Secondly, the closed-loop transfer function of the DFIG/PV integrated power system is derived to analyze the dynamic interaction process among the DFIG, PV, and SG. The damping coefficients provided by DFIG and PV to SG are newly derived to quantify the impact of the DFIG/PV on power system oscillation. Then, an analytical expression for the sensitivities of the damping coefficients to the output of the DFIG/PV is proposed. It is used as the gradient information of the interior point method to improve power system stability by adjusting the outputs of the DFIG/PV. Finally, the simulation results verify that adjusting the output of DFIG/PV can improve the damping of dangerous modes of PV/DFIG and the stability of the system. The calculation efficiency and accuracy of the optimization method with sensitivity as gradient information are verified. The average amplitudes of the power angle with and without optimization are 25.1589° and 18.0165° respectively. © 2024 Power System Protection and Control Press. All rights reserved.
引用
收藏
页码：151 / 161
页数：10
相关论文
共 34 条
  • [1] SHAIR J, XIE X R, YANG J J, Et al., Adaptive damping control of subsynchronous oscillation in DFIG-based wind farms connected to series-compensated network, IEEE Transactions on Power Delivery, 37, 2, pp. 1036-1049, (2022)
  • [2] WU Xiong, HE Mingkang, HE Wenwen, Et al., Optimal capacity of a wind-solar-thermo-storage-bundled power transmission system considering battery life, Power System Protection and Control, 51, 15, pp. 66-75, (2023)
  • [3] VIJAY M, SINGH B, BHUVANESWARI G, Et al., Sensorless SYNRG based variable speed wind generator and single-stage solar PV array integrated grid system with maximum power extraction capability, IEEE Transactions on Industrial Electronics, 67, 9, pp. 7529-7539, (2020)
  • [4] JIANG Haiyang, DU Ershun, JIN Chen, Et al., Optimal planning of multi-time scale energy storage capacity of cross-national interconnected power system with high proportion of clean energy, Proceedings of the CSEE, 41, 6, pp. 2101-2115, (2021)
  • [5] ANGADI S, YARAGATTI U, SURESH Y, Et al., Comprehensive review on solar, wind and hybrid wind-PV water pumping systems an electrical engineering perspective, CPSS Transactions on Power Electronics and Applications, 6, 1, pp. 1-19, (2021)
  • [6] SHA Weiyan, HU Wei, HE Ninghui, Et al., Optimal scheduling method for stabilizing power prediction error of new energy by large-scale virtual energy storage, Journal of Electric Power Science and Technology, 38, 6, pp. 167-174, (2023)
  • [7] LI S H., Sensitivity-based expression of the voltage-power characteristic (VPC) of the wind farm from the VPCs of the DFIGs and the collector, IEEE Transactions on Power Systems, 39, 1, pp. 2143-2153, (2023)
  • [8] LI Shenghu, YE Jianqiao, CHEN Dong, Passive control strategy to mitigate sub-synchronous control interaction of DFIG-based integrated power systems, Power System Protection and Control, 51, 11, pp. 77-85, (2023)
  • [9] XI X Z, GENG H, YANG G, Et al., Torsional oscillation damping control for DFIG-based wind farm participating in power system frequency regulation, IEEE Transactions on Industry Applications, 54, 4, pp. 3687-3701, (2018)
  • [10] CHI Y N, TANG B J, HU J B, Et al., Overview of mechanism and mitigation measures on multi-frequency oscillation caused by large-scale integration of wind power, CSEE Journal of Power and Energy Systems, 5, 4, pp. 433-443, (2019)
1234