| SPWM-H桥变换器中分岔与混沌的自适应载波调幅控制 |
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| 引用本文： | 孙黎霞,周照宇,温正赓,王麒云. SPWM-H桥变换器中分岔与混沌的自适应载波调幅控制[J]. 电测与仪表, 2020, 57(23): 101-108 |
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| 作者姓名： | 孙黎霞 周照宇 温正赓 王麒云 |
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| 作者单位： | 河海大学 能源与电气学院,河海大学 能源与电气学院,河海大学 能源与电气学院,河海大学 能源与电气学院 |
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| 基金项目： | 国家自然科学基金项目（51707056）随机电力系统的有界波动域内可靠度最大化控制 |
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| 摘 要： | 文中以单相正弦脉宽调制(SPWM)H桥变换器为研究对象,应用分岔图和时域波形图,研究调制过程中载波调幅系数的变化对系统动态行为的影响,并对其进行系统稳定性的数学解析,在此基础上,提出一种自适应载波调幅控制方法,该方法能够依据变换器各参数的变化实时调整载波调幅系数,以保证系统的稳定运行。建立了基于DSP相关实验,在系统混沌时加入文中提出的方法,通过实验验证该方法的有效性。
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| 关 键 词： | 载波调幅 混沌控制 单相SPWM-H变换器 分岔与混沌 |
| 收稿时间： | 2019-12-13 |
| 修稿时间： | 2020-01-13 |
Adaptive Carrier Amplitude Modulation Control of Bifurcation and Chaos in SPWM H-bridge |
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| Sun Lixi,Zhou Zhaoyu,Wen Zhenggeng and Wang Qiyun. Adaptive Carrier Amplitude Modulation Control of Bifurcation and Chaos in SPWM H-bridge[J]. Electrical Measurement & Instrumentation, 2020, 57(23): 101-108 |
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| Authors: | Sun Lixi Zhou Zhaoyu Wen Zhenggeng Wang Qiyun |
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| Affiliation: | College of Energy and Electrical Engineering,Hohai University,College of Energy and Electrical Engineering,Hohai University,College of Energy and Electrical Engineering,Hohai University,College of Energy and Electrical Engineering,Hohai University |
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| Abstract: | The variation of parameters in power electronic device, such as the change of controller parameters and voltage instability, may influence the dynamic behavior of converter. In the paper, based on the discrete model of SPWM H-bridge converter, the effect of the variation of carrier amplitude modulation coefficient on system dynamic behavior is studied through bifurcation diagram and time-domain waveform. Meanwhile, mathematical analysis of system stability is given, and on this basis, an adaptive carrier amplitude modulation control (CAMC) strategy is proposed, which can adjust carrier amplitude modulation coefficient in real time based on the change of system parameters and ensure the stability of system. Finally, the experimental results using CAMC based on DSP(TMS320F2812) are also provided to verify the effectiveness of this method. |
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| Keywords: | Carrier amplitude modulation control(CAMC), chaos control, H-bridge converter, bifurcation and chaos |
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