Current-source 1-Ph inverter design for aircraft applications

Abstract

Purpose This paper aims to present an inverter with a current-source input for 400 Hz avionic systems to have a system which removes DC-link capacitors and presents a high efficiency. Design/methodology/approach A battery-powered DC link inductor generates a constant-current source. A single high-frequency switch is used to provide a sinusoidally modulated current before the inverter. The output of the switch is “unfolded” by a thyristor-based H-bridge inverter to generate an AC output current. The system uses a CL low-pass filter to obtain a 400 Hz pure sine wave by removing pulse width modulation components. Findings Simulations and Typhoon HIL real-time experiments were performed with closed-loop control to validate the proposed inverter concept while meeting the critical standards of MIL-STD-704F. Originality/value This current source inverter topology is suitable for avionic systems that require 400 Hz output frequency. The topology uses small DC-link inductor and eliminates bulky capacitor which determines the inverter lifetime.

Design of a Half-Bridge Current-Source Inverter Topology for Avionic Systems

“…The proposed topology is inspired by a current-source single-phase inverter study [4]. However, the earlier topology includes an energy storage inductor at the DC link and a highfrequency MOSFET after the inductor.…”

“…Inverters are designed in ground-type or plane-type. Static inverters have a 400 Hz output frequency [2][3][4][5]. Inverters with 400 Hz output frequency are also preferred for marine, rail transport and laboratory research for a long time [6].…”

“…Inverters with 400 Hz output frequency are also preferred for marine, rail transport and laboratory research for a long time [6]. Although voltage-source static inverters (VSI) are studied and designed for such applications [7,8] current-source inverters could not find a place in the literature [4].…”

Design and analysis of electric spring based on battery-less current-source inverter

“…It can only operate normally when the DC voltage is greater than the peak voltage of the AC link, so a high-voltage level battery or capacitor is required on the DC link (Bai et al , 2018). Current-source inverters (CSIs), as the duality of VSIs, have the advantages of voltage boosting, large-capacity conversion, direct current control, adjustable power factor and reliable short-circuit protection (Wang et al , 2016; Sener and Ertasgin, 2020; Zou et al , 2021), which can also be used to construct ESs. In addition, inductors have a higher lifetime and stability than capacitors (Wang and Blaabjerg, 2014).…”

Modeling, Simulation and Development of Grid-Connected Voltage Source Converter with Selective Harmonic Mitigation: HiL and Experimental Validations

“…Common RCP systems for power electronic applications are dSPACE Microlabbox (Paderborn, Germany) [10,11] and OPAL-RT OP4510 (Montreal, QC, Canada) [12,13] and Imperix B-Box (Sion, Switzerland) [14] etc. Common commercial HiL systems are OPAL-RT OP4510 (Montreal, QC, Canada) [12], dSPACE SCALEXIO (Paderborn, Germany) [9], Typhoon HiL (Somerville, MA, USA) [15,16] and National Instruments LabVIEW FPGA (Austin, TX, USA) [17]. The VSC power stage emulated in a HiL system is easily connected with the control stage implemented in an RCP system or a DSP-based controller.…”