Reduction in Radiation Noise Level for Inductive Power Transfer Systems Using Spread Spectrum Techniques
Reduction in Radiation Noise Level for Inductive Power Transfer Systems Using Spread Spectrum Techniques
复制标题
使用扩频技术降低感应电力传输系统的辐射噪声水平
DOI：
10.1109/tpel.2017.2710230
复制
发表时间：
2018
影响因子：
6.7
通讯作者：
J. Itoh
中科院分区：
文献类型：
--
作者：
K. Inoue;K. Kusaka;J. Itoh
提出了两种利用扩频技术降低感应电能传输（IPT）系统辐射噪声的方法。在用于电动车辆（EV）或插电式混合动力EV（PHEV）的IPT系统中，降噪技术是必要的，因为来自用于EV或PHEV的IPT系统的辐射噪声不得超过由噪声标准定义的限制，例如由国际无线电干扰特别委员会（International Special Committee on Radio Interference）设定的众所周知的规定。在所提出的方法中，IPT系统的传输线圈的辐射噪声通过随机改变逆变器的输出频率在频域中传播。根据伪随机数的产生来选择输出频率。在第一种提出的方法中，具有均匀分布的扩频（SSUD），从具有均匀分布的80至90 kHz的频率范围中选择输出频率。在第二种方法中，扩频偏置分布（SSBD），逆变器的输出电流被认为是。在给定范围内选择输出频率的可能性与来自初级侧上的传输线圈和谐振电容器的组合阻抗成比例地偏置。在一台3kW样机上进行的实验中，与采用固定频率的传统系统相比，采用SSUD和SSBD时，辐射噪声的基波分量分别被抑制了4.45和8.27 dB·μ A。
Two proposed methods of reducing radiation noise caused by inductive power transfer (IPT) systems using spread spectrum techniques were experimentally demonstrated. In IPT systems for electric vehicles (EVs) or plug-in hybrid EVs (PHEVs), noise reduction techniques are necessary because the radiation noise from the IPT system for EVs or PHEVs must not exceed the limits defined by noise standards, such as the well-known regulation set by the International Special Committee on Radio Interference. In the proposed methods, the radiation noise from the transmission coils of the IPT system is spread in the frequency domain by randomly changing the output frequency of the inverter. The output frequency is selected according to the generation of pseudorandom numbers. In the first proposed method, spread spectrum with a uniform distribution (SSUD), the output frequency is selected from the frequency range of 80 to 90 kHz with an even distribution. In the second method, spread spectrum with a biased distribution (SSBD), the output current of the inverter is considered. The possibility of selecting an output frequency in the given range is biased in proportion to the combined impedance from the transmission coil and the resonance capacitors on the primary side. In experiments with a 3-kW prototype, when SSUD and SSBD were applied, the fundamental components of the radiation noise were suppressed by 4.45 and 8.27 dB · μA, respectively, in comparison with the noise obtained using the conventional system, which operates the inverter at a fixed frequency.
DOI：
10.1109/jestpe.2013.2264473
发表时间：
2013-03-01
影响因子：
5.5
作者：
Covic, Grant Anthony;Boys, John Talbot
通讯作者：
Boys, John Talbot
影响因子：
7.7
作者：
Imura, Takehiro;Hori, Yoichi
通讯作者：
Hori, Yoichi