摘要
针对电网电压跌落问题,主要研究了单相动态电压恢复器的Fuzzy-PID控制策略。首先对动态电压恢复器的原理和构成进行了简单介绍,并推导出系统方程。然后对电压环反馈控制和二维模糊控制器分别进行了设计,搭建仿真模型。应用Fuzzy-PID自调节控制实现了对负载电压的快速补偿,并对补偿电压进行FFT分析。仿真结果验证了方法的正确性与有效性。
Aiming at the problem of grid voltage drops,Fuzzy-PID control strategy of single-phase dynamic voltage restorer was studied.First of all,the principle and constitution of the dynamic voltage restorer were briefly introduced and the system equations were deduced.Then feedback control of the voltage loop and the two-dimensional fuzzy controller were respectively designed to set up the simulation model.Fuzzy-PID self-tuning control was used to achieve a quick compensation for load voltage and perform FFT analysis for the bucking voltage.The simulation results have verified the truth and validity of the method.
作者
田华明
刘毅力
丁换换
梁继国
Tian Huaming;Liu Yili;Ding Huanhuan;Liang Jiguo(College of Electronic and Information,Xi an Polytechnic University,Xi an Shaanxi 710048,China)
出处
《电气自动化》
2018年第2期19-21,30,共4页
Electrical Automation
基金
陕西省智能电网输变电设备状态监测技术创新团队(2014KCT-16)
