| 基于DSP和CPLD的三电平背靠背变流器研究 |
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| 引用本文： | 邵章平,张兴,王付胜.基于DSP和CPLD的三电平背靠背变流器研究[J].电力电子技术,2010,44(10). |
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| 作者姓名： | 邵章平 张兴 王付胜 |
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| 作者单位： | 合肥工业大学,电气学院,安徽,合肥,230009 |
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| 摘 要： | 介绍了三电平背靠背变流器的工作原理,根据整流环节和逆变环节的不同设计了相应的控制系统,采用统一电压调制算法发生PWM信号。对平衡因子算法进行改进,使中点电压得到很好的控制。搭建以DSP和CPLD为控制电路的实验平台进行验证,结果证明所提控制策略和调制方法的可行性和中点平衡控制的有效性。
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| 关 键 词： | 变流器 电流内环 统一电压调制 平衡因子 |
Research on Three-level AC/DC/AC Converter Based on the DSP and CPLD Control System |
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| SHAO Zhang-ping,ZHANG Xing,WANG Fu-sheng.Research on Three-level AC/DC/AC Converter Based on the DSP and CPLD Control System[J].Power Electronics,2010,44(10). |
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| Authors: | SHAO Zhang-ping ZHANG Xing WANG Fu-sheng |
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| Affiliation: | SHAO Zhang-ping,ZHANG Xing,WANG Fu-sheng(Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | Firstly,the principle of Three-level AC/DC/AC converter is given.Then,taking account of the difference between rectifier and inverter,control system is designed,and unified voltage modulation is used to produce PWM signal.While balance factor arithmetic is improved to control middle voltage.The experimental platform is set up with DSP and CPLD control system.The experimental results verify the feasibility of this strategy and the validity of middle voltage control. |
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| Keywords: | converter current loop unified voltage modulation balance factor |
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