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                                                                                                                                                                                                                                                                                                              歡迎光臨~陜西異步西瑪電機有限公司
                                                                                                                                                                                                                                                                                                              服務熱線 全國服務熱線:

                                                                                                                                                                                                                                                                                                              029-82197999
                                                                                                                                                                                                                                                                                                              132-0180-7999

                                                                                                                                                                                                                                                                                                              常見問答

                                                                                                                                                                                                                                                                                                              電動車用的交流異步電機和永磁同步電機之間有什么區別

                                                                                                                                                                                                                                                                                                              有網友問,電動車用的電機分為交流異步電機和永磁同步電機。它們之間有什么區別?


                                                                                                                                                                                                                                                                                                              我們不說技術原理之類的,我們西瑪電機今天就講效果。簡單來說:


                                                                                                                                                                                                                                                                                                              異步電機受外界環境影響小,可靠性高,稀土材料用量少,成本低,對溫度不敏感,高速運行時效率高。缺點是功率密度低。如果要加大功率,只能把電機做得更大,電機運行時的損耗會更大,也就是更費電。


                                                                                                                                                                                                                                                                                                              永磁同步電機的優點是能量轉換效率高,即更省電,體積小功率大,反復啟停、和加減速時效率高;缺點是永磁材料受熱易退磁,對溫度敏感,散熱要求高。加工復雜,稀土材料用量大,成本高。


                                                                                                                                                                                                                                                                                                              兩者之間沒有絕對的優劣或者誰更先進,這和車型的定位、能耗的策略甚至車廠的選址都有關系。由于國內稀土資源豐富,消費者對續航更為敏感,國內車企的新能源汽車往往更傾向于使用同步電機。但由于缺乏稀土材料和駕駛習慣,國外品牌更喜歡使用異步電機,就像奧迪e-tron和奔馳EQC都使用兩臺異步電機。當然和之前的Model  S一樣,前后橋各有一個。


                                                                                                                                                                                                                                                                                                              導航欄目

                                                                                                                                                                                                                                                                                                              聯系我們

                                                                                                                                                                                                                                                                                                              聯系人:金經理

                                                                                                                                                                                                                                                                                                              手 機:13201807999

                                                                                                                                                                                                                                                                                                              郵 箱:simo@ximadianji.cn

                                                                                                                                                                                                                                                                                                              公 司:陜西異步西瑪電機有限公司

                                                                                                                                                                                                                                                                                                              地 址:西安市金花北路205號

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