An electrical power supply system 18 for an electric transport refrigeration unit 14 is disclosed. An electrical power supply system 18 for providing AC power to the refrigeration system and comprising: a DC power source 16 for providing a DC voltage via a low voltage line 22 and a high voltage line 24; an inverter 26 for receiving the DC voltage and converting it into a three-phase AC voltage for powering the refrigeration system; and an electromagnetic compatibility (EMC) filter 28 between the inverter 26 and the refrigeration system. The EMC filter 28 uses a common mode current path 30 connected to a DC link 32, wherein the DC link is provided between a high voltage line 24 and a low voltage line 22 of the DC power supply 16. The common mode current path 30 is thus coupled to the DC link 32 to provide a floating current connection for the common mode current from the EMC filter 28.
公开了一种用于电动运输制冷单元14的电功率供应系统18。电功率供应系统18用于向制冷系统提供AC功率,并且包括:用于经由低电压线路22和高电压线路24提供DC电压的DC电源16;用于接收DC电压并将其转换成三相AC电压以用于为制冷系统供电的逆变器26;以及在逆变器26和制冷系统之间的电磁兼容性EMC过滤器28。EMC过滤器28使用连接到DC链路32的共模电流路径30,其中DC链路在DC电源16的高电压线路24和低电压线路22之间提供。共模电流路径30因此耦合到DC链路32,以便为来自EMC过滤器28的共模电流提供浮动电流连接。
Electrical power supply system for transport refrigeration system
用于运输制冷系统的电功率供应系统
2023-07-07
Patent
Elektronische Ressource
Chinesisch
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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