电源学报2024，Vol.22Issue(2)：231-241,11.DOI:10.13234/j.issn.2095-2805.2024.2.231
面向脉冲负载的基于超级电容储能UPQC设计及控制策略研究
Research on Design and Control Strategy for UPQC Based on Supercapacitor Energy Storage for Pulse Load
摘要
Abstract
Aimed at the voltage distortion and current distortion of power grid with pulse load,a three-level unified power quality conditioner(UPQC)with supercapacitor energy storage is designed.A method based on artificial neural net-work is proposed to control the series and shunt compensation units,and a method based on double closed-loop PI con-trol is used to control the supercapacitor energy storage unit.The series compensation unit compensates voltage to main-tain the stability of load voltage and ensure the power demand of load,while the shunt compensation unit compensates current to maintain the stability of supply current and avoid the continuous and large impact on power grid.The super-capacitor energy storage unit charges and discharges on the DC side to maintain a constant voltage on the DC side and ensure the normal operation on the series and shunt sides.The proposed method eliminates the complicated coordinate transformation process and avoids the phase lag caused by multiple filters.Simulation experiment results show that the proposed topology and control strategy are helpful for improving the power quality of power grid with pulse load.关键词
脉冲负载/统一电能质量调节器/超级电容储能/人工神经网络Key words
Pulse load/unified power quality conditioner(UPQC)/supercapacitor energy storage/artificial neural network分类
信息技术与安全科学引用本文复制引用
王萌,黄细霞,孙程..面向脉冲负载的基于超级电容储能UPQC设计及控制策略研究[J].电源学报,2024,22(2):231-241,11.基金项目
国家自然科学基金资助项目(52001197)This work is supported by National Natural Science Foundation of China under the grant 52001197 （52001197）
