A new fast digital P-I-D control LLC resonant converter
A new fast digital P-I-D control LLC resonant converter
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一种新型快速数字 P-I-D 控制 LLC 谐振转换器
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
K. Murata
中科院分区：
文献类型：
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作者：
F. Kurokawa;K. Murata
本文提出了一种用于 LLC 谐振 DC-DC 转换器的新型多采样点快速响应频率数字控制。在电源系统中，数控LLC谐振变换器将得到广泛的应用，因为它具有高电源效率的特点。然而，由于计算存在延迟时间，因此有必要改进数字控制方法。传统方法中，采样率是单一的，P-D和I控制的计算过程是串联的。另一方面，在所提出的方法中，采样率是倍数，并且P-D和I控制的计算过程是并行的。由于计算过程分为P-D和I控制，它们以不同的采样率进行计算，得到快速的P-D计算结果。因此，由于实时 P-D 控制对于瞬态响应很有用，因此可以获得良好的瞬态响应。
This paper proposes a new fast response frequency digital control with multi-sampling point for LLC resonant dc-dc converter. In the power supply system, the digitally controlled LLC resonant converter will be widely used, because it is a high power efficiency characteristic. However it is necessary to improve the digital control method because the delay time based on calculation occurs. In the conventional method, the sampling rate is single and the calculation process of P-D and I controls are series. On the other hand, in the proposed method, the sampling rate is multiple and the calculation process of P-D and I controls are parallel. Since the calculation process is divided into P-D and I controls, they are calculated at different sampling rates and the fast P-D calculation result is obtained. Therefore, good transient responses are obtained as the real time P-D control is useful for a transient response.