摘要
通过对电动汽车蓄电池充放电系统进行的研究,提出了一种单相三电平整流器,首先分析了其电路结构及原理,建立了基于开关函数的数学模型。然后,针对蓄电池充放电系统对直流侧电压控制要求稳定程度高的特点,采用自适应神经网络模糊控制算法对直流侧电压进行跟踪控制。MATLAB仿真结果验证了它的有效性,克服了采用传统PI调节动态性差和抗负载扰动能力差的问题。
Through the research of the battery charging and discharging system for electric vehicles, a single-phase three-level rectifier is presented for this system. This paper analyzes its circuit structure and principle and establishes a mathematical model based on switching function. Then, considering high voltage stability at the DC side in the battery charging/discharging system, the self- adaptive network-based fuzzy inference algorithm is adopted to track the DC voltage. MATLAB simulation results verify the effectiveness of the above mentioned method, which solves the problem of poor dynamic behavior and resistance to load disturbance in the conventional PI regulation.
出处
《电气自动化》
2014年第1期33-35,50,共4页
Electrical Automation
基金
国家863计划项目(2012AA111004)
关键词
充放电系统
单相三电平整流器
双闭环控制
ANFIS控制
模糊规则
charging/discharging system
single-phase three-level rectifier
double closed-loop control
ANFIS control
fuzzy rule
