Application Research of Chaotic Carrier Frequency Modulation Technology in Two-Stage Matrix Converter
Application Research of Chaotic Carrier Frequency Modulation Technology in Two-Stage Matrix Converter
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DOI：
10.1155/2019/2614327
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发表时间：
2019-03
影响因子：
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通讯作者：
Kai Wang;Liwei Li;Yong-Ting Lan;P. Dong;Guoting Xia
中科院分区：
文献类型：
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作者：
Kai Wang;Liwei Li;Yong-Ting Lan;P. Dong;Guoting Xia
在固定载波频率的两级矩阵变换器（TSMC）中，线间电压谐波具有离散性和高阶性，产生强大的电磁干扰（EMI）。本文首次将混沌载波调频技术（CCFMT）应用于TSMC中，以扩大边带范围和抑制谐波峰值。虽然这种技术可以抑制电磁干扰，但会增加窄脉冲的概率。为了提高可靠性，两级矩阵变换器中的整流器采用带零矢量的PWM调制，延长了零电流换相时间，解决了窄脉冲问题，简化了换相过程。最后，设计了实验平台，实验结果表明，该方法能有效地抑制线间电压谐波。
The harmonics of line to line voltage in two-stage matrix converter (TSMC) with fixed carrier frequency had discrete and high values and produced powerful electromagnetic interference (EMI). In this paper, chaotic carrier frequency modulation technique (CCFMT) was applied in TSMC for the first time to spread sideband range and suppress harmonic peak value. Although this technique could suppress EMI, it would increase the probability of narrow pulses. In order to improve reliability, the rectifier in the two-stage matrix converter uses PWM modulation with zero vector to extend the zero current commutation time, solves the narrow pulse problem, and simplifies the commutation process. At last, an experiment platform was designed and experimental results showed that harmonics of line to line voltage was efficiently suppressed.