CAI Yuanxin,PENG Ke,ZHAO Xueshen,et al.Transient Stability Analysis of DC Distribution System Considering Duty Cycle Limiter[J].Automation of Electric Power Systems,2024,48(16):51-58.
CAI Yuanxin,PENG Ke,ZHAO Xueshen,et al.Transient Stability Analysis of DC Distribution System Considering Duty Cycle Limiter[J].Automation of Electric Power Systems,2024,48(16):51-58. DOI: 10.7500/AEPS20240202003.
Transient Stability Analysis of DC Distribution System Considering Duty Cycle Limiter
the limiter is prone to the saturation phenomenon of duty cycle
and the DC power distribution system will be degraded from closed-loop control to open-loop response and transient instability. Therefore
this paper carries out the transient stability analysis of DC power distribution system considering the duty cycle limiter. Firstly
this paper uses Sigmoid function to simulate the nonlinear characteristics of duty cycle limiter
and establishes a large-signal model of DC distribution system which is closer to the engineering reality. Secondly
the estimated attraction domain taking into account the influence of the duty cycle limiter is characterized by the Takagi-Sugeno (TS) fuzzy modeling method. Then
the variation of the estimated attraction domain with different control parameters reveals the transient instability phenomenon of the DC distribution system induced by duty cycle saturation. Finally
for the limitations of the existing transient stability improvement methods due to the duty cycle limiter
an optimization design method of control parameters is proposed to provide a scheme for the control parameter selection to improve the transient stability of the system. The effectiveness of the theoretical analysis is verified by the RT-Box hardware-in-the-loop experiment.
ZHANG Ning , LI Yaowang , HUANG Junhui , et al . Carbon measurement method and carbon meter system for whole chain of power system [J]. Automation of Electric Power Systems , 2023 , 47 ( 9 ): 2 - 12 .
HAN Xuejiao , QU Lu , WANG Changyong , et al . Construction and comprehensive evaluation of a full DC power supply system in data centers [J]. Zhejiang Electric Power , 2024 , 43 ( 3 ): 75 - 83 .
WANG Jiaqian , ZHAO Jinbin , ZENG Zhiwei , et al . Stability analysis of photovoltaic DC microgrid based on virtual inertia control [J]. Electric Power Automation Equipment , 2024 , 44 ( 4 ): 55 - 61 .
YANG Mingyang , WANG Han , CAI Xu , et al . Medium-voltage DC collection and DC transmission system of wind turbines based on distributed diode rectifiers [J]. Automation of Electric Power Systems , 2024 , 48 ( 2 ): 9 - 19 .
PENG Ke , LI Yunli , ZHAO Xueshen , et al . Wide-band oscillation stabilization control of DC distribution system considering random disturbance [J]. Automation of Electric Power Systems , 2023 , 47 ( 22 ): 129 - 137 .
HUANG L B , XIN H H , WANG Z , et al . Transient stability analysis and control design of droop-controlled voltage source converters considering current limitation [J]. IEEE Transactions on Smart Grid , 2019 , 10 ( 1 ): 578 - 591 .
HUANG Meng , LIU Yushuang , FU Xikun , et al . A review of nonlinear behavior mechanism and safety operation boundary for power electronics grid-connected converters [J]. Engineering Journal of Wuhan University , 2023 , 56 ( 11 ): 1380 - 1392 .
PAN Li , LI Xialin , WANG Zhi , et al . Overview of transient stability analysis of phase locked loop synchronization in weak-grid connected VSC [J]. Electric Power Automation Equipment , 2023 , 43 ( 9 ): 138 - 151 .
LIU Xinbo , LIU Ning , SONG Xiaotong , et al . Large-signal stability criteria of AC/DC hybrid microgrid based on AC constant power loads [J]. High Voltage Engineering , 2021 , 47 ( 10 ): 3441 - 3451 .
MING Jia , WANG Yubin , WANG Fan , et al . Large signal stability analysis and active damping compensation method for DC microgrid [J]. Transactions of China Electrotechnical Society , 2021 , 36 ( Supplement 2 ): 517 - 529 .
SONG Q C , CHEN J W , LOO K H , et al . Large-signal stability analysis of two-stage cascaded DC/DC converter systems using sum-of-squares programming [J]. IEEE Transactions on Power Electronics , 2024 , 39 ( 2 ): 2076 - 2085 .
LI Zekun , KONG Li , PEI Wei . Analyses of stability criterion and key factors of DC microgrid under large disturbance [J]. High Voltage Engineering , 2019 , 45 ( 12 ): 3993 - 4002 .
ZHAO Feng , SHUAI Zhikang , PENG Yelun , et al . Evaluation method for transient stability of inverter containing current limiter [J]. Proceedings of the CSEE , 2021 , 41 ( 6 ): 2245 - 2255 .
HURAYB K , NIEBUR D , KABALAN M . Large-signal stability analysis of grid-connected droop-controlled inverter with saturable power controller [C]// 2022 North American Power Symposium (NAPS) , October 9-11 , 2022 , Salt Lake City, USA .
CHUN E , KABALAN M . Effects of controller saturation on domain of attraction estimation of droop-controlled inverter [C]// 2019 North American Power Symposium (NAPS) , October 13-15 , 2019 , Wichita, USA .
XING Guangzheng , MIN Yong , CHEN Lei , et al . Large-disturbance instability patterns of grid-connected VSC [J]. Electric Power Automation Equipment , 2022 , 42 ( 8 ): 47 - 54 .
ZHANG Guoju , PEI Wei , YANG Peng , et al . Review on circuit topology and control technology of flexible interconnection devices for medium-voltage distribution network [J]. Automation of Electric Power Systems , 2023 , 47 ( 6 ): 18 - 29 .
ZHAO X S , GUO L , ZHU L , et al . Power feasible region ensuring transient stability of droop-based multiconverters DC system [J]. IEEE Transactions on Power Electronics , 2023 , 38 ( 4 ): 5442 - 5455 .
SHEN Xia , SHUAI Zhikang , SHEN Chao , et al . Review on operation and control of AC microgrid under large disturbance [J]. Automation of Electric Power Systems , 2021 , 45 ( 24 ): 174 - 188 .
LIU Sucheng , LI Xiang , QIN Qiangdong , et al . Large signal stability analysis of DC microgrid cluster [J]. Transactions of China Electrotechnical Society , 2022 , 37 ( 12 ): 3132 - 3147 .