The invention discloses an energy input and output monitoring device for a hydrogen fuel cell power system. The energy input and output monitoring device comprises a contactor array, an array switch controller and a contactor working state detection device, wherein the contactor array comprises a first contactor and a second contactor; the first contactor is connected between the positive input end of a DC/DC converter and the positive connecting end of a fuel cell stack, and the second contactor is connected between the negative input end of the DC/DC converter and the negative connecting endof the fuel cell stack; the contactor working state detection device is used for monitoring electric signals of a first connecting end and a second connecting end of each contactor and contact pointtemperatures of the contactors, and when the electric signals of the first connecting end and the second connecting end are larger than a preset value or the contact point temperatures are larger thana preset value, abnormal working electric signals are sent to the array switch controller , so as to control the disconnection of the contactors. Due to the fact that the connecting contactor of theDC/DC converter and the fuel cell stack is monitored, the reliability and safety of the hydrogen fuel cell power system are improved.
一种用于氢燃料电池动力系统的能量输入输出监控装置,包括接触器阵列、阵列开关控制器和接触器工作状态检测装置。其中,接触器阵列包括第一接触器和第二接触器,第一接触器连接在DC/DC变换器的正输入端和燃料电池电堆的正连接端之间,第二接触器连接在DC/DC变换器的负输入端和燃料电池电堆的负连接端之间,接触器工作状态检测装置用于监测每个接触器的第一连接端和第二连接端的电信号和接触器的接触点温度,并当第一连接端和第二连接端的电信号大于预设值或接触点温度大于一预设值时发出工作异常电信号给阵列开关控制器,以控制接触器断开。由于对DC/DC变换器和燃料电池电堆的连接接触器进行监测,使得氢燃料电池动力系统的可靠性和安全性得到提高。
Energy input and output monitoring device for hydrogen fuel cell power system
一种用于氢燃料电池动力系统的能量输入输出监控装置
18.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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