| 软开关谐振过程稳定性分析与PWM控制波形优化 | |
| 朱志明 ; 杨中宇 ; 夏铸亮 ; 汤莹莹 ; ZHU Zhiming ; YANG Zhongyu ; XIA Zhuliang ; TANG Yingying | |
| 2016-03-30 ; 2016-03-30 | |
| 关键词 | 控制波形优化 移相PWM控制 软开关谐振 全桥变换器 control waveform optimization phase-shift palse width modulation control soft-switching resonance fullbridge converter TM46 |
| 其他题名 | Dynamic stability analysis of soft-switching resonant process and optimization of PWM control waveform |
| 中文摘要 | 在移相控制全桥功率变换器的软开关谐振过程解耦分析基础上,针对电源启动和焊接电弧负载频繁剧烈的动态变化过程,提出了一种"1-2-1"的余弦模式PWM控制波形.根据数字信号处理(DSP)的数字化脉冲宽度调制(PWM)生成原理,设计实现了基于"1-2-1"余弦模式的移相PWM控制波形,并进行了控制效果的试验验证.结果表明,采用此模式对全桥功率变换器进行移相PWM控制,不仅可以满足电源输出特性对PWM控制有效占空比的要求,而且可以保证超前臂并联谐振网络和变压器原边串联谐振网络的软开关谐振过程的动态稳定性,保持功率器件在电源启动和负载动态变化过程中的软开关状态.; Based on the decoupled analysis of soft-switching resonant process in phase-shift controlled full- bridge power converter,a"1-2-1"cosine mode PWM control waveform is proposed,which is aimed at dealing with the process of power-start and frequently violent dynamic change on welding arc load. According to the generating principle of digital PWM control waveform in DSP,a phase-shift PWM control waveform with " 1-2-1" cosine mode is designed,and its control effect is verified experimentally. The results show that,by using this phase-shift PWM mode to control full-bridge power converter,it can not only meet the requirement of effective duty cycle in PWM control pulse with regard to the power output characteristics,but also guarantee the dynamic stability in soft-switching resonant process of leading-leg parallel resonant network and transformer primary side serial resonant network,so that the soft-switching state of power devices will be maintained in the process of power-start and frequently violent dynamic change on welding arc load. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/144461]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 朱志明,杨中宇,夏铸亮,等. 软开关谐振过程稳定性分析与PWM控制波形优化[J],2016, 2016. |
| APA | 朱志明.,杨中宇.,夏铸亮.,汤莹莹.,ZHU Zhiming.,...&TANG Yingying.(2016).软开关谐振过程稳定性分析与PWM控制波形优化.. |
| MLA | 朱志明,et al."软开关谐振过程稳定性分析与PWM控制波形优化".(2016). |
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