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发明公开
CN105706284A 双电源负载驱动燃料电池系统 有权

双电源负载驱动燃料电池系统
摘要：
本发明提供一种能够提高燃料电池的耐久性及系统的电力效率的双电源负载驱动燃料电池系统。即便存在负载端电压(Vinv)的变动(负载变动)，也能够通过包括SiC-FET的FCVCU(21)的高速动作来抑制FC(40)的输出端的变动，从而能够确保FC(40)的耐久性，并且由于在通过平均电力(Pbave)大的BATVCU(22)中配置IGBT(41～44)，因此能够减少燃料电池系统(12)的电力损失，从而能够构建有效利用了FCVCU(21)及BATVCU(22)的开关元件(SiC-FET或IGBT)的特性的系统。
摘要（英）：

Provided is a two-power-supply load driving fuel cell system capable of improving the durability of the fuel cell and the power efficiency of the system. Even if the variation of a load terminal voltage (Vinv) (variation of a load) occurs, the variation of the output terminal of an FC (40) can be suppressed due to the high-speed operation of an FCVCU (21) including an SiC-FET, enabling the durability of the FC (40) to be ensured. In addition, since IGBTs (41 to 44) are employed in a BATVCU (22) having large average passing power (Pbave), the power loss of a fuel cell system (12) can be reduced. It is therefore possible to construct a system that takes advantage of the characteristics of the switching elements (SiC-FET or IGBTs) used in the FCVCU (21) and the BATVCU (22).

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