Journal article
High-Frequency High Step-Up Inductive Power Transfer-Based Capacitor Charger in Active Injection DC Circuit Breakers
IEEE journal of emerging and selected topics in industrial electronics (Print), v 3(3), pp 1-1
02 Mar 2022
Abstract
This paper investigates the application of inductive power transfer (IPT) based converters as capacitor chargers for dc circuit breakers (DCCBs) including active injection circuits (AIC). AIC generates resonant countercurrent pulses to achieve transient current commutation. There are three main contributions. First, a high-frequency and high step-up wireless inductive series-parallel (WISP) converter is applied to charge the injection capacitor of AIC, which achieves reliable voltage isolation and constant voltage (CV) output with a simple structure. Second, WISP converter is optimized for DCCBs with three objectives: a) reducing transient time, b) reducing transient and steady-state power loss, and c) enhancing compactness. Four parameters impacting the transient are analyzed through LTspice simulations and experiments, namely the input dc voltage, voltage step-up ratio, quality factor, and the injection capacitor. Third, a burst switching mode control is proposed to reduce steady-state power loss. An optimized WISP converter operating at 1MHz with a voltage gain of 8.33 is implemented and applied to a 380V/50A/5.2s AIC SSCB. Based on the experimental results, a 10F load capacitor is charged to 80V in 2.37ms and 90V in 2.9ms. It presents 66.7% efficiency during transient and 99.6% energy saving during steady-state while keeping the output voltage ripple within 2%.
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11 citations in Scopus
Details
- Title
- High-Frequency High Step-Up Inductive Power Transfer-Based Capacitor Charger in Active Injection DC Circuit Breakers
- Creators
- Reza Kheirollahi - Drexel UniversityShuyan Zhao - Drexel UniversityYao Wang - Drexel UniversityHua Zhang - Drexel UniversityXin Zan - University of Michigan–Ann ArborSheng Zheng - Oak Ridge National LaboratoryXiaonan Lu - Temple UniversityJun Wang - University of Nebraska–LincolnAl-Thaddeus Avestruz - University of Michigan–Ann ArborFei Lu - Drexel University
- Publication Details
- IEEE journal of emerging and selected topics in industrial electronics (Print), v 3(3), pp 1-1
- Publisher
- IEEE
- Grant note
- DE-AR0001114 / Advanced Research Projects Agency - Energy (10.13039/100006133)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Scopus ID
- 2-s2.0-105018885990
- Other Identifier
- 991019182659804721