| 基于F2812的逆变器数字控制器的建模与设计 |
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| 引用本文： | 王凤岩,任黎立,许建平.基于F2812的逆变器数字控制器的建模与设计[J].电工技术学报,2009,24(2). |
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| 作者姓名： | 王凤岩 任黎立 许建平 |
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| 作者单位： | 1. 中国电子科技集团公司第29研究所,成都,610036
2. 西南交通大学信息工程学院,成都,610031 |
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| 摘 要： | 研究了开关电源数字控制存在的时间延迟、A/D转换的分辨率、PWM的分辨率和采样保持等问题,提出了一种考虑回路时间延迟和采样保持的逆变器精确数学模型,基于该模型设计了逆变器的控制传递函数,并对数字控制的时间延迟对控制性能的影响进行了理论分析和仿真研究,在500VA 210VDC/115V 400Hz逆变器样机上进行了实验,对控制传递函数设计的有效性进行了验证.
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| 关 键 词： | 逆变器 建模 数字控制 数字信号处理 |
Modeling and Design of Digital Controller for Inverter Based on F2812 |
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| Wang Fengyan,Ren Lili,Xu Jianping.Modeling and Design of Digital Controller for Inverter Based on F2812[J].Transactions of China Electrotechnical Society,2009,24(2). |
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| Authors: | Wang Fengyan Ren Lili Xu Jianping |
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| Affiliation: | 1. Southwest China Research Institute of Electronic Equipment Chengdu 610036 China 2. Southwest Jiaotong University Chengdu 610031 China |
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| Abstract: | The influence of control delay, resolution of A/D converter, resolution of PWM, and sampling and holding of digital control of switching converter are discussed. Then a more accuracy model is brought forward considering the influence of control delay and sampling and holding. Theory and simulation analysis of control time delay is carried out after the transfer function of the inverter is produced. The experiment on a 500VA 210VDC/115V 400Hz inverter prototype verified the validity of the controller's desig... |
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| Keywords: | Inverter modeling digital control DSP |
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