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An S-CLC Compensated Load-Independent Inductive Power Relay System with Constant Voltage Outputs
IEEE Transactions on Power Electronics ( IF 6.7 ) Pub Date : 2021-05-01 , DOI: 10.1109/tpel.2020.3026675
Zhonghao Dongye , Yao Wang , Reza Kheirollahi , Hua Zhang , Sheng Zheng , Chong Zhu , Fei Lu

This paper proposes an S-CLC compensation network to achieve a relay system to power multiple gate drivers of series modules. There are three major contributions. First, it achieves the constant-voltage (CV) and load-independent property, meaning the induced voltage on each receiver is immune to load variations. Second, the S-CLC circuit topology is compact to be implemented, and an integrated coil structure is proposed to limit the system size. Third, the efficiency of the power relay system is analyzed, including parasitic resistances of resonant components and coils, which clearly reveals the load regulation phenomenon in practical applications. A single-input-four-output prototype is implemented. The coil size is 180mm×175mm, the transfer distance between receivers is 50mm, and the switching frequency is 200kHz. When the input dc voltage is 18V, the induced voltage of each receiver is around 15V, and the voltage difference between receivers is within 2 V. When the load resistances vary in a wide range from 15ω to 100ω, the output voltage regulation rate is within 17.01%. Besides, the maximum power of the receiver can reach 13.53W, and the maximum efficiency can reach 89.79%, showing that the proposed power relay system can be used in practical applications.

中文翻译:

具有恒定电压输出的 S-CLC 补偿负载独立电感式功率继电器系统

本文提出了一种 S-CLC 补偿网络,以实现为串联模块的多个栅极驱动器供电的继电器系统。主要贡献有三点。首先,它实现了恒压 (CV) 和负载无关特性,这意味着每个接收器上的感应电压不受负载变化的影响。其次,S-CLC 电路拓扑结构紧凑,易于实现,并提出了集成线圈结构以限制系统尺寸。第三,分析了功率继电器系统的效率,包括谐振元件和线圈的寄生电阻,清楚地揭示了实际应用中的负载调节现象。实现了单输入四输出原型。线圈尺寸为180mm×175mm,接收器之间的传输距离为50mm,开关频率为200kHz。当输入直流电压为 18V 时,每个接收器的感应电压在 15V 左右,接收器之间的电压差在 2V 以内。当负载电阻在 15ω 到 100ω 的宽范围内变化时,输出电压调节率在17.01%。此外,接收器的最大功率可达13.53W,最大效率可达89.79%,表明所提出的功率中继系统可用于实际应用。
更新日期:2021-05-01
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