转矩×机械角速度=功率
一、功率转换过程:文章源自公式库网-https://www.gongshiku.com/html/201808/ganyingdiandongjidegongshuaifangchenghezhuanjufangcheng.html
定子端输入电功率P1,其中小部分消耗于定子铜耗,铁耗,余下为通过气隙旋转磁场利用电磁感应作用传递到转子的电磁功率;这其中小部分消耗于转子铜耗,铁耗,余下为转子总的机械功率,再补偿掉机械损耗和附加损耗后,余下为转子轴上输出净机械功率。这一过程可用功率图形象表示。文章源自公式库网-https://www.gongshiku.com/html/201808/ganyingdiandongjidegongshuaifangchenghezhuanjufangcheng.html
二、功率方程式:
在T型等值电路图中利用电流通过各种电阻时的损耗表示:文章源自公式库网-https://www.gongshiku.com/html/201808/ganyingdiandongjidegongshuaifangchenghezhuanjufangcheng.html
三、转矩方程式:
文章源自公式库网-https://www.gongshiku.com/html/201808/ganyingdiandongjidegongshuaifangchenghezhuanjufangcheng.html
电磁转矩概念的理解:,转子本身产生机械功率;旋转磁场对转子做功两方面理解。文章源自公式库网-https://www.gongshiku.com/html/201808/ganyingdiandongjidegongshuaifangchenghezhuanjufangcheng.html
四、电磁转矩公式:文章源自公式库网-https://www.gongshiku.com/html/201808/ganyingdiandongjidegongshuaifangchenghezhuanjufangcheng.html
可象直流机那样,利用电磁力定律用积分求,这里据等值电路和相量图来推导:文章源自公式库网-https://www.gongshiku.com/html/201808/ganyingdiandongjidegongshuaifangchenghezhuanjufangcheng.html 文章源自公式库网-https://www.gongshiku.com/html/201808/ganyingdiandongjidegongshuaifangchenghezhuanjufangcheng.html