摘要
交直流混合微电网电能质量扰动特征较为复杂,导致电能质量协同控制难度增加,所以提出基于改进模糊比例—积分—微分(PID)的交直流混合微电网电能质量协同控制方法。根据建立交直流混合微电网数学模型分析协同控制的难点,结合模糊信息特征提取方法实现扰动特征提取,基于提取的特征识别混合微电网的电能质量扰动情况。搭建用于提升电能质量的改进模糊PID控制器,将电能质量扰动识别作为约束,对微电网的电压和电流展开协同控制,从而提升电能质量。实验结果表明通过这种方法控制后的电压和电流曲线变得平滑,正负序谐波分量均显著减少,有功功率保持稳定提升状态,证明所提方法可有效提高电能质量。
The disturbance features of power quality of AC/DC hybrid microgrid are relatively complex,which increases the dif-ficulty of power quality collaborative control.Therefore,a method for power quality collaborative control of AC/DC hybrid mi-crogrid based on improved fuzzy proportional-integral-derivative(PID)is proposed.The paper analyzes the difficulties of col-laborative control based on the mathematical model of an AC/DC hybrid microgrid.By combining fuzzy information feature ex-traction methods,it achieves disturbance feature extraction,and the power quality disturbance of the hybrid microgrid is identi-fied based on the extracted features.An improved fuzzy PID controller is built to improve power quality,and power quality dis-turbance identification is used as a constraint to synergistically control the voltage and current of the microgrid,thereby impro-ving power quality.The experimental results show that the voltage and current curves controlled by this method become smooth,the positive and negative sequence harmonic components are significantly reduced,and the active power maintains a stable increase state,proving that the proposed method can effectively improve power quality.
作者
段宜
陈凤仙
孔垂锐
詹传
张燕
DUAN Yi;CHEN Fengxian;KONG Chuirui;ZHAN Chuan;ZHANG Yan(Qujing Power Supply Bureau of Yunnan Power Grid Co.,Ltd.,Qujing 655100,China)
出处
《微型电脑应用》
2025年第5期22-25,共4页
Microcomputer Applications
基金
云南省科技厅联合专项(202201BE070001-15)
云南电网有限责任公司曲靖供电局(YNKJXM20220049)。
