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| 任意路通用PWM波形发生器的设计 | |
| 引用本文： | 胡海兵,姚文熙,江辉鸿,邢岩,吕征宇.任意路通用PWM波形发生器的设计[J].电工技术学报,2008,23(12). |
| 作者姓名： | 胡海兵 姚文熙 江辉鸿 邢岩 吕征宇 |
| 作者单位： | 1. 南京航空航天大学航空电源重点实验室,南京,210016 2. 浙江大学电力电子国家专业实验室,杭州,310027 3. 广东省珠海电力建设工程有限公司,珠海,519000 |
| 基金项目： | 国家重点基础研究发展计划(973)资助项目 |
| 摘 要： | 针对多电平变换器PWM信号通道多和PWM信号同步的问题,提出了一种基于PWMIP核的多路PWM发生器的设计方法。利用搭积木(Building Blocks)的方法即可方便构建任意路PWM发生器。所有PWM信号采用同一个时基,并且每路PWM均有独立的控制寄存器,容易实现PWM信号的严格同步和不同调制策略。该发生器具有友好的接口,以简化与DSP或MCU等控制芯片的接口设计。最后,设计了一个适用于三相三电平级联变换器的24路PWM发生器,实验结果表明了该设计方法的简洁性和实用性。 |
| 关 键 词： | 多电平 脉冲宽度调制 知识产权 级联变换器 |
Design of a Universal PWM Generator With Arbitrary Number of PWM Channels |
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| Hu Haibing,Yao Wenxi,Jiang Huihong,Xing Yan,Lv Zhengyu.Design of a Universal PWM Generator With Arbitrary Number of PWM Channels[J].Transactions of China Electrotechnical Society,2008,23(12). | |
| Authors: | Hu Haibing Yao Wenxi Jiang Huihong Xing Yan Lv Zhengyu |
| Affiliation: | 1.Nanjing University of Aeronautics and Astronautics Nanjing 210016 China 2. Zhejiang University Hangzhou 310027 China 3. Zhuhai Electric Power Construction Engineering Co.Ltd Zhuhai 519000 China |
| Abstract: | Due to the large number of PWM channels required in multi-level converter and their synchronization problems, this paper presents a simple method to configure multi-PWM generator based on PWM IP (Intellectual Property) core using building block approach. Each PWM channel has same time base and the control registers of its own. Thus it can be set individually to realize synchronization of PWM signals and different modulation strategies easily. The generator has very friendly interface to receive settings and commands from micro-controller units (MCU) or digital signal processors (DSP). A 24-PWM generator is designed for three-phase-three-level cascaded inverter to verify the correction of the proposed method. Experimental results show the conciseness and effectiveness of the proposed design method. |
| Keywords: | Multilevel pulse width modulation (PWM) intellectual property cascaded inverter |
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