DC/DC变换器数字pid与滑模控制策略的比较研究

Proceedings of 2014 International Conference on Modelling, Identification & Control Pub Date : 2014-12-01 DOI:10.1109/ICMIC.2014.7020717

Chunjie Zhou, Yao Wang, Xiaojie Zhang, Shaocheng Qu

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引用次数: 3

摘要

基于定频PWM控制策略，详细介绍了基于dsp的数字PID控制技术和滑模变结构高频DC/DC变换器控制理论。首先，设计了具有趋近律的传统类比滑模控制器和数字PID控制器。然后构建了两种DC/DC变换器的实验样机，并进行了对比实验。实验结果表明，采用数字PID控制器的DC/DC变换器在输入电压波动和负载变化的情况下具有快速的动态响应和较高的精度。

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Comparative research of digital-PID and sliding mode control strategy for DC/DC converter

Based on the fixed frequency PWM control strategy, this paper introduced a DSP-based digital PID control technology and a sliding mode variable structure control theory for high frequency DC/DC converter in detail. Firstly, a traditional analogy sliding mode controller with the reaching law and a digital PID controller are designed. Then experimental prototypes for two kind of DC/DC converters are constructed and comparative experiment are implemented. The experiment results show that DC/DC converter by using digital PID controller have fast dynamic response and high accuracy in the presence of the input voltage fluctuation and load variation.

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Proceedings of 2014 International Conference on Modelling, Identification & Control

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