一种采用测量线圈技术的感应电能传输系统调频调谐方法研究

发布时间：2018-12-28 16:06

【摘要】：为解决谐振参数容差导致感应电能传输系统失谐现象,该文采用在原边线圈并绕测量线圈的技术,以原边回路电流与测量线圈电路电压进行矢量运算得到的两者相位差为反馈量,间接获得副边回路的谐振状态,通过控制逆变器的输出电压频率,使副边回路恢复谐振状态,增大副边回路中负载的电压增益和系统输出功率,达到提高系统的电能传输效率的目的。实验结果表明,所采用的方法能够有效使副边回路恢复谐振状态,增大副边回路中的负载电压和系统输出功率,提高系统的电能传输效率。相对于系统调频调谐前,在谐振参数容差导致副边回路呈感性的情况下,调频调谐后系统输出功率最大提升144.15W,传输效率最大提升1.21%;在谐振参数容差导致副边回路呈容性的情况下,调频调谐后系统输出功率最大提升245.49W,传输效率最大提升1.72%。
[Abstract]:In order to solve the detuning phenomenon of induction power transmission system caused by the tolerance of resonant parameters, this paper adopts the technique of measuring coils and coils on the original side. Taking the phase difference between the primary current and the voltage of the measuring coil circuit as feedback, the resonant state of the auxiliary circuit is obtained indirectly. By controlling the frequency of the output voltage of the inverter, the resonant state of the secondary circuit is restored. By increasing the voltage gain of the load and the output power of the system, the power transmission efficiency of the system can be improved. The experimental results show that the proposed method can effectively restore the resonant state of the auxiliary circuit, increase the load voltage and the output power of the system, and improve the power transmission efficiency of the system. Compared with the frequency modulation tuning system, the maximum output power is 144.15W and the transmission efficiency is 1.21 when the resonant parameter tolerance leads to inductance of the secondary side loop. When the resonant parameter tolerance results in the capacitive performance of the secondary side loop, the maximum output power is 245.49 W, and the transmission efficiency is 1.72%.
【作者单位】：西南交通大学电气工程学院;
【基金】：国家杰出青年科学基金(51525702) 四川省青年科技基金(2016JQ0033)~~
【分类号】：TM724

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