| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a highly reliable inverter system by detecting malfunction of an electromagnetic contactor. <P>SOLUTION: In the inverter system, a first electromagnetic contact means where multiple electromagnetic contactor contacts are connected in parallel with the positive or negative electrode of a DC bus connecting a DC power supply and an inverter, and a second electromagnetic contact means where a resistor and the electromagnetic contactor contacts are connected in series are connected in parallel, respectively. The inverter system comprises a storage means for storing the closing order of the multiple electromagnetic contactor contacts configuring the first electromagnetic contact means, and a closing order generation means for generating a closing order different from that stored by the storage means. According to the closing order generated by the closing order generation means, the multiple electromagnetic contactor contacts configuring the first electromagnetic contact means are closed in order. <P>COPYRIGHT: (C)2012,JPO&INPIT |
