描述

下坡行駛時(shí)，在車體自身重力的作用下，電動(dòng)機(jī)處于發(fā)電工作狀態(tài)，并給變頻器直流側(cè)的主濾波電容器充電，使電動(dòng)機(jī)產(chǎn)生制動(dòng)轉(zhuǎn)矩。變頻器標(biāo)準(zhǔn)能提供10％~15％的制動(dòng)轉(zhuǎn)矩，使用制動(dòng)單元和制動(dòng)電阻選件后，能提供100％的制動(dòng)轉(zhuǎn)矩。當(dāng)變頻器直流側(cè)電壓上升到一定值時(shí)，制動(dòng)單元自動(dòng)工作，接通剎車電阻，進(jìn)行能耗制動(dòng)，控制單軌游覽車穩(wěn)速前進(jìn)。試驗(yàn)表明，下坡時(shí)車速穩(wěn)定，即使途中停車，也能正常減速并停穩(wěn)。

主營(yíng)：本特利，英維思，伍德沃德，?？怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂(lè)，ACSO，

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