控制理论(社会学)
电压
转换器
观察员(物理)
计算机科学
干扰电压
控制器(灌溉)
正激变换器
电压调节
升压变换器
控制(管理)
工程类
跌落电压
物理
电气工程
量子力学
人工智能
农学
生物
作者
Xi Tian,Fazhan Tao,Zhumu Fu,Shuzhong Song,Nan Wang
标识
DOI:10.59277/pra-ser.a.25.1.10
摘要
The bidirectional DC-DC converter serves a vital role in the energy recovery system of new energy vehicles. However, external interference and parameter uncertainty can easily affect its dynamic performance. A disturbance observer-based fixed time control strategy for bidirectional DC-DC is proposed to address the impact of input voltage and load uncertainty on bidirectional converters. Firstly, the bidirectional converter model undergoes coordinate transformation, and disturbance observers are designed to compensate for input voltage and load disturbances. Secondly, based on the fixed time control theory, a fixed-time controller is devised for the bidirectional DC-DC converter to facilitate fast tracking and adjustment of output voltage without requiring measurement of input voltage and load current. Finally, simulation and experiment evaluations are conducted to assess the proposed scheme’s effectiveness in output voltage regulation.
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