Frequency-Dependent Criterion for Mitigation of Transmission-Line Effects in a High-Frequency Distributed Power Systems

A frequency-dependent criterion that enables transfer of power at high frequency (HF) over a distributed power system (DPS) is outlined. Such a DPS can encompass conventional applications such smart building, electric vehicles, lighting and telecommunication applications, microgrid, or even distributed multi-axis motor drives or motor drives with wide separation between inverter and motor. Historically, HF DPSs for suitable applications have demonstrated compact solution of the overall power system while ensuring enhanced efficiency and reliability. However, for several such applications Achilles hill has been the transmission-line (TL) effect that a power signal encounters as it propagates through the TL. Solutions to this core problem have primarily focused on adjusting the TL length or using active compensation. While the former is primarily limited to PCB level implementations, the latter leads to high expense and complexity of the DPS. In this paper, we demonstrate a frequency-dependent criterion, which if satisfied, mitigates the TL effect and is scalable for systems that have one or more sources and singular or plurality of application load(s).