A new control method depending on primary phase angle of transcutaneous energy transmission system for artificial heart.
A new control method depending on primary phase angle of transcutaneous energy transmission system for artificial heart.
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人工心脏经皮能量传输系统基于主相角的新控制方法
DOI：
10.1109/embc.2013.6610850
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Matsuki H
中科院分区：
文献类型：
--
作者：
Miura H;Saito I;Sato F;Shiraishi Y;Yambe T;Matsuki H
提出了一种新的稳定人工心脏经皮能量传输系统输出电压的控制方法。这种方法是一次侧，在体外，不依赖于植入器械的信号传输系统。当输出电流较大且耦合因子高于最佳条件时，从一次侧观察到的阻抗从感性变为容性，输出电压急剧下降。在这种情况下，驱动频率应该改变为更高，使得初级阻抗的相位角为零度。初步试验表明，该控制方法可将输出电压限制提高到原来的两倍，并证明了原边控制的可行性。
A new control method for stabilizing output voltage of the transcutaneous energy transmission system for artificial heart is proposed. This method is primary side, is outside of the body, which is not depending on a signal transmission system from the implanted device. The impedance observed from primary side changes from inductive to capacitive and the output voltage decreases drastically when the output current is large and the coupling factor is higher than that of the optimal condition. In this case, the driving frequency should be changed to higher so that the phase angle of the primary impedance is zero degree. The preliminary examination showed that this control method can enhance the output voltage limit to twice and the feasibility of the primary side control.