The invention provides a traction inverter main loop for a permanent magnet synchronous traction system, which comprises a power supply circuit, a main control circuit, a first circuit and a second circuit, wherein the power supply circuit is connected with one end of the main control circuit, the other end of the main control circuit is connected with the first circuit and the second circuit respectively, the first circuit and the second circuit are connected in parallel, the first circuit is connected with the two first permanent magnet synchronous motors respectively, and the second circuitis connected with the two second permanent magnet synchronous motors respectively; when the main control circuit detects that the power supply of the power supply circuit is abnormal, the main control circuit controls the power supply circuit to be disconnected with the first circuit and the second circuit; when the first circuit breaks down, the first circuit can be disconnected with the main control circuit, or when the second circuit breaks down, the second circuit can be disconnected with the main control circuit. The motor is driven by the first circuit and the second circuit respectively, so that the problem that faults cannot be eliminated in time when the motor is driven by a single circuit is avoided, and the fault running capability and stability of the vehicle are improved.
本发明提供一种用于永磁同步牵引系统的牵引逆变器主回路,包括:供电电路、主控电路、第一电路和第二电路,供电电路与主控电路的一端相连,主控电路的另一端分别与第一电路和第二电路相连,第一电路和第二电路并联连接,且第一电路分别与两个第一永磁同步电机相连,第二电路分别与两个第二永磁同步电机相连;且当主控电路检测到供电电路供电异常时,主控电路会控制供电电路与第一电路和第二电路断开;当第一电路出现故障时,第一电路会与主控电路断开,或当第二电路出现故障时,第二电路会与主控电路断开。本发明通过第一电路和第二电路分别驱动电机,避免了单一电路驱动电机时出现故障无法及时排除,提高了车辆的故障运行能力和车辆的稳定性。
Traction inverter main loop for permanent magnet synchronous traction system
一种用于永磁同步牵引系统的牵引逆变器主回路
2020-05-01
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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