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Invention Publication
CN109641531A 尤其用于车辆的驱动系统和用于加热驱动系统的方法 有权

尤其用于车辆的驱动系统和用于加热驱动系统的方法
Abstract:
本发明涉及一种尤其用于车辆的驱动系统(10)，所述驱动系统包括用于产生电能的燃料电池单元(12)、用于存储电能的二次电池(14)、具有绕组(21，22，23)的电机(20)以及用于操控所述电机(20)的逆变器(30)。在此，所述逆变器(30)构造为三电平逆变器并且具有多个电子开关(S1，S2，S3，S4，S5，S6，S7，S8，S9，S10，S12)和二极管(D1，D2，D3，D4，D5，D6，X1，X2，X3，X4，X5，X6，X7，X8，X9，X10，X12)以及一个正极(37)、一个负极(35)和一个中性极(36)，其中，所述燃料电池单元(12)与所述二次电池(14)串联连接并且所述燃料电池单元和所述二次电池与所述逆变器(30)的这些极(35，36，37)连接。本发明也涉及一种用于加热根据本发明的驱动系统(10)的方法，其中，如此操控所述逆变器(30)的开关(S1，S2，S3，S4，S5，S6，S7，S8，S9，S10，S12)，使得在所述逆变器(30)的以下极(35，36，37)之间产生短路类型的电流路径：所述燃料电池单元(12)与所述极连接。
Abstract(English):

The invention relates to a drive system (10), in particular for a vehicle, comprising a fuel cell unit (12) for generating electric energy, a secondary battery (14) for storing electric energy, an electric machine (20) with windings (21, 22, 23), and an inverter (30) for actuating the electric machine (20). The inverter (30) is designed as a 3-level inverter and has multiple electronic switches (S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S12), diodes (D1, D2, D3, D4, D5, D6, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X12), a plus pole (37), a minus pole (35), and a neutral pole (36). The fuel cellunit (12) and the secondary battery (14) are connected in series and are connected to the poles (35, 36, 37) of the inverter (30). The invention also relates to a method for heating a drive system (10) according to the invention, wherein the switches (S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S12) of the inverter (30) are actuated such that a short-circuit current path is produced between the inverter (30) poles (35, 36, 37) to which the fuel cell unit (12) is connected.

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