DC-DC变换器电压模式控制数字PID控制器的设计

2017 International conference on Microelectronic Devices, Circuits and Systems (ICMDCS) Pub Date : 2017-08-01 DOI:10.1109/ICMDCS.2017.8211715

Kartik Sharma, D. K. Palwalia

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引用次数: 15

摘要

DC/DC转换器广泛用于开关模式稳压电源，可再生能源转换系统和电气驱动。传统的模拟方法是流行的控制这些转换器。本文介绍了一种采用数字滤波器结构的数字控制器，该控制器支持不动点算法。数字控制器在DC/DC变换器中的应用由于其相对于模拟控制器的优越性一直受到人们的关注。在数字控制器中，控制策略可以改变或重新编程，而不需要显著的硬件改变。数字控制器通过改变环路增益、交叉频率和相位裕度来改善DC-DC变换器的响应。提出了降压和升压变换器的闭环数字控制，并在不同的工作条件下得到了控制结果，并用MATLAB/Simulink进行了验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Design of digital PID controller for voltage mode control of DC-DC converters

DC/DC converters are massively used for switchmode regulated power supply, renewable energy conversion systems and electrical drives. Conventionally analog methods were popular for control of these converters. This paper elucidates a digital controller using digital filter architecture, which supports fixed-point algorithm. Digital controller application to DC/DC converters has always been considered because of their superiority over analog controller. In digital controller, the control strategy can be altered or reprogrammed without the need of significant hardware changes. The digital controller improves response of DC-DC converter by varying loop-gain, cross-over frequency and phase margin. Closed loop digital control of buck and boost converter is presented and the results are obtained for varying operating conditions and verified using MATLAB/Simulink.

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2017 International conference on Microelectronic Devices, Circuits and Systems (ICMDCS)

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