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西南交通大学电气工程学院,四川省成都市 611756
陈永洪(1995—),男,硕士研究生,主要研究方向:无线电能传输技术。E-mail:723856431@qq.com
黎祎阳(1998—),男,硕士研究生,主要研究方向:无线电能传输技术。E-mail:2585658225@qq.com
杨斌(1996—),男,博士研究生,主要研究方向:无线电能传输技术。E-mail:yb@my.swjtu.edu.cn
陈阳(1992—),男,通信作者,博士,助理研究员,主要研究方向:无线电能传输技术。E-mail:yangchen@swjtu.edu.cn
收稿日期:2021-12-05,
修回日期:2022-04-25,
网络出版日期:2022-09-07,
纸质出版日期:2022-10-25
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陈永洪,黎祎阳,杨斌等.基于多中继线圈结构的无线电能传输系统恒流/恒压输出方法[J].电力系统自动化,2022,46(20):147-154.
CHEN Yonghong,LI Yiyang,YANG Bin,et al.Constant-current/Constant-voltage Output Method for Wireless Power Transfer System Based on Multi-relay Coil Structure[J].Automation of Electric Power Systems,2022,46(20):147-154.
陈永洪,黎祎阳,杨斌等.基于多中继线圈结构的无线电能传输系统恒流/恒压输出方法[J].电力系统自动化,2022,46(20):147-154. DOI: 10.7500/AEPS20211205001.
CHEN Yonghong,LI Yiyang,YANG Bin,et al.Constant-current/Constant-voltage Output Method for Wireless Power Transfer System Based on Multi-relay Coil Structure[J].Automation of Electric Power Systems,2022,46(20):147-154. DOI: 10.7500/AEPS20211205001.
在高压杆塔在线监测设备的电池充电过程中,为了兼顾充电速度与安全,常采用恒流/恒压充电方式。文中基于多中继线圈的无线电能传输系统,提出一种仅切换一次系统工作频率便能实现恒流/恒压输出的方法,该方法无需复杂的控制和额外的元件。首先,分析得到恒流、恒压与系统系数矩阵之间的定量关系;然后
采用迭代算法确定各个补偿参数的数值,使得系统在两个不同的频率点上可以分别实现恒流或恒压输出;最后,切换系统的工作频率,即可从恒流输出模式切换到恒压输出模式。实验结果表明,在负载大范围变化时,电流增益和电压增益仅略微变化,且在整个充电过程中几乎没有无功功率。
In the battery charging process of online monitoring equipment on the high-voltage tower
in order to take into account the charging speed and safety
the constant-current (CC)/constant-voltage (CV) charging mode is often used. For the wireless power transfer (WPT) system based on the muti-relay coils
this paper proposes a method for realizing CC/CV output by switching the operating frequency of the system only once. The proposed method does not require complicated control and additional components. First
the quantitative relationship between CC/CV output and the system matrix is analyzed. Then
the iterative algorithm is used to determine the value of each compensation parameter
so that the system can achieve CC or CV output at two different frequency points
respectively. Finally
the CC mode can be switched to the CV mode by altering the system frequency. The experimental results demonstrate that the current gain and the voltage gain change only slightly when the load changes over a wide range
and there is almost no reactive power during the whole charging process.
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