摘要
提出一种应用于储能型准Z源变流器的模糊控制算法。近年来,模糊控制因其适应性和强鲁棒性得到广泛应用。这种控制方法与传统PI控制方法的最大不同之处在于模糊控制不需要建立精确的数学模型。将模糊控制应用于储能型准Z源变流器中,对电池充放电电流进行控制,实现了能量的双向流动。与传统的PI控制方法相比,模糊控制能有效地减小电容电压纹波,减小电网电流谐波总畸变率和减小电池充放电电流的脉动。仿真结果验证了所提出控制方法的有效性。
A fuzzy control method applied to a energy-storaged quasi Z-source converter was presented. In recent years,fuzzy control is increasingly ubiquitous owing to its adaptiveness and strong robustness. The difference between this control method and PI control lies in that fuzzy control doesn’t depends on the accurate mathematical model.Fuzzy control was applied to energy-storaged quasi Z-source converter to control battery charging/discharging current,the bidirectional flow of energy was achieved. Compared to PI control,fuzzy control could reduce the ripple of capacitor voltage,the total harmonic distortion(THD)of grid current and the pulsation of battery charging/discharging current. The simulation results validate the effectiveness of the control method proposed.
作者
毛人杰
李媛
方番
MAO Renjie;LI Yuan;FANG Fan(School of Electrical Engineering and Information,Sichuan University,Chengdu 610065,Sichuan,China)
出处
《电气传动》
北大核心
2020年第3期40-44,共5页
Electric Drive
基金
国家自然科学基金项目(51407122)。
关键词
储能型准Z源变流器
模糊控制
数学模型
energy-storaged quasi Z-source converter(QZSG)
fuzzy control
mathematical model
