The invention relates to a DC-DC converter (209) for an electric aircraft propulsion system (201), the DC-DC converter being designed to be connected in series with an electrical energy storage unit of the electric propulsion system. The DC-DC converter (209) comprises an inverter (401), a transformer (403) and a rectifier (405), and further comprises a current source (417) connected to the rectifier (405) and configured to control power through the DC-DC converter (209). The transformer (403) comprises a primary (403a) and two secondary (403b, 403c), the two secondary (403b, 403c) having a common terminal (407) designed to be connected to a high voltage DC bus (207) of the electric propulsion system (201) and two other terminals (409, 411) connected to the rectifier (405). The rectifier (405) comprises two arms, each arm comprising at least two transistors (415a, 415b, 415c, 415d) connected in series, on the one hand, to the two other terminals (409, 411) of the transformer (403), and on the other hand, to the current source (417).
本发明涉及一种用于电飞行器推进系统(201)的DC‑DC转换器(209),DC‑DC转换器被设计为与电推进系统的电能存储单元串联连接。DC‑DC转换器(209)包括:逆变器(401)、变压器(403)以及整流器(405),还包括电流源(417),电流源连接到整流器(405)并被配置为控制经过DC‑DC转换器(209)的功率。变压器(403)包括初级(403a)和两个次级(403b、403c),两个次级(403b、403c)具有被设计为连接到电推进系统(201)的高压DC母线(207)的公共端子(407)以及连接到整流器(405)的两个其它端子(409、411)。整流器(405)包括两个臂,每个臂包括至少两个串联的晶体管(415a、415b、415c、415d),该两个臂一方面连接到变压器(403)的两个其它端子(409、411),另一方面连接到电流源(417)。
DC-DC converter for electric aircraft propulsion system
用于电飞行器推进系统的直流-直流转换器
18.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT |
Electric propulsion system for aircraft, aircraft comprising such electric propulsion system
Europäisches Patentamt | 2024
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