同(Tong)轴(Zhou)线(Xian)机(Ji)中(Zhong)变(Bian)频(Pin)器(Qi)的(De)作(Zuo)用(Yong)与(Yu)特(Te)点(Dian)介(Jie)绍(Shao)
同(Tong)轴(Zhou)线(Xian)机(Ji)变(Bian)频(Pin)器(Qi)是(Shi)把(Ba)工(Gong)频(Pin)电(Dian)源(Yuan)(50Hz或(Huo)60Hz)变(Bian)换(Huan)成(Cheng)各(Ge)种(Zhong)频(Pin)率(Lu)的(De)交(Jiao)流(Liu)电(Dian)源(Yuan),(?)以(Yi)实(Shi)现(Xian)电(Dian)机(Ji)的(De)变(Bian)速(Su)运(Yun)行(Xing)的(De)设(She)备(Bei),(?)其(Qi)中(Zhong)控(Kong)制(Zhi)电(Dian)路(Lu)完(Wan)成(Cheng)对(Dui)主(Zhu)电(Dian)路(Lu)的(De)控(Kong)制(Zhi),(?)整(Zheng)流(Liu)电(Dian)路(Lu)将(Jiang)交(Jiao)流(Liu)电(Dian)变(Bian)换(Huan)成(Cheng)直(Zhi)流(Liu)电(Dian),(?)直(Zhi)流(Liu)中(Zhong)间(Jian)电(Dian)路(Lu)对(Dui)整(Zheng)流(Liu)电(Dian)路(Lu)的(De)输(Shu)出(Chu)进(Jin)行(Xing)平(Ping)滑(Hua)滤(Lu)波(Bo),(?)逆(Ni)变(Bian)电(Dian)路(Lu)将(Jiang)直(Zhi)流(Liu)电(Dian)再(Zai)逆(Ni)成(Cheng)交(Jiao)流(Liu)电(Dian)。(?)
对(Dui)于(Yu)如(Ru)矢(Shi)量(Liang)控(Kong)制(Zhi)变(Bian)频(Pin)器(Qi)这(Zhe)种(Zhong)需(Xu)要(Yao)大(Da)量(Liang)运(Yun)算(Suan)的(De)变(Bian)频(Pin)器(Qi)来(Lai)说(Shuo),(?)有(You)时(Shi)还(Huan)需(Xu)要(Yao)一(Yi)个(Ge)进(Jin)行(Xing)转(Zhuan)矩(Ju)计(Ji)算(Suan)的(De)CPU以(Yi)及(Ji)一(Yi)些(Xie)相(Xiang)应(Ying)的(De)电(Dian)路(Lu)。(?)变(Bian)频(Pin)调(Diao)速(Su)是(Shi)通(Tong)过(Guo)改(Gai)变(Bian)电(Dian)机(Ji)定(Ding)子(Zi)绕(Rao)组(Zu)供(Gong)电(Dian)的(De)频(Pin)率(Lu)来(Lai)达(Da)到(Dao)调(Diao)速(Su)的(De)目(Mu)的(De)。(?)
同(Tong)轴(Zhou)线(Xian)机(Ji)变(Bian)频(Pin)技(Ji)术(Shu)是(Shi)应(Ying)交(Jiao)流(Liu)电(Dian)机(Ji)无(Wu)级(Ji)调(Diao)速(Su)的(De)需(Xu)要(Yao)而(?)诞(Dan)生(Sheng)的(De)。(?)20世(Shi)纪(Ji)60年(Nian)代(Dai)以(Yi)后(Hou),(?)电(Dian)力(Li)电(Dian)子(Zi)器(Qi)件(Jian)经(Jing)历(Li)了(Liao)SCR(晶(Jing)闸(Zha)管(Guan))、(?)GTO(门(Men)极(Ji)可(Ke)关(Guan)断(Duan)晶(Jing)闸(Zha)管(Guan))、(?)BJT(双(Shuang)极(Ji)型(Xing)功(Gong)率(Lu)晶(Jing)体(Ti)管(Guan))、(?)MOSFET(金(Jin)属(Shu)氧(Yang)化(Hua)物(Wu)场(Chang)效(Xiao)应(Ying)管(Guan))、(?)SIT(静(Jing)电(Dian)感(Gan)应(Ying)晶(Jing)体(Ti)管(Guan))、(?)SITH(静(Jing)电(Dian)感(Gan)应(Ying)晶(Jing)闸(Zha)管(Guan))、(?)MGT(MOS控(Kong)制(Zhi)晶(Jing)体(Ti)管(Guan))、(?)MCT(MOS控(Kong)制(Zhi)晶(Jing)闸(Zha)管(Guan))、(?)IGBT(绝(Jue)缘(Yuan)栅(Zha)双(Shuang)极(Ji)型(Xing)晶(Jing)体(Ti)管(Guan))、(?)HVIGBT(耐(Nai)高(Gao)压(Ya)绝(Jue)缘(Yuan)栅(Zha)双(Shuang)极(Ji)型(Xing)晶(Jing)闸(Zha)管(Guan))的(De)发(Fa)展(Zhan)过(Guo)程(Cheng),(?)器(Qi)件(Jian)的(De)更(Geng)新(Xin)促(Cu)进(Jin)了(Liao)电(Dian)力(Li)电(Dian)子(Zi)变(Bian)换(Huan)技(Ji)术(Shu)的(De)不(Bu)断(Duan)发(Fa)展(Zhan)。(?)
20世(Shi)纪(Ji)70年(Nian)代(Dai)开(Kai)始(Shi),(?)脉(Mai)宽(Kuan)调(Diao)制(Zhi)变(Bian)压(Ya)变(Bian)频(Pin)(PWM-(?)VVVF)调(Diao)速(Su)研(Yan)究(Jiu)引(Yin)起(Qi)了(Liao)人(Ren)们(Men)的(De)高(Gao)度(Du)重(Zhong)视(Shi)。(?)20世(Shi)纪(Ji)80年(Nian)代(Dai),(?)作(Zuo)为(Wei)变(Bian)频(Pin)技(Ji)术(Shu)核(He)心(Xin)的(De)PWM模(Mo)式(Shi)优(You)化(Hua)问(Wen)题(Ti)吸(Xi)引(Yin)着(Zhuo)人(Ren)们(Men)的(De)浓(Nong)厚(Hou)兴(Xing)趣(Qu),(?)并(Bing)得(De)出(Chu)诸(Zhu)多(Duo)优(You)化(Hua)模(Mo)式(Shi),(?)其(Qi)中(Zhong)以(Yi)鞍(An)形(Xing)波(Bo)PWM模(Mo)式(Shi)效(Xiao)果(Guo)最(Zui)佳(Jia)。(?)20世(Shi)纪(Ji)80年(Nian)代(Dai)后(Hou)半(Ban)期(Qi)开(Kai)始(Shi),(?)美(Mei)、(?)日(Ri)、(?)德(De)、(?)英(Ying)等(Deng)发(Fa)达(Da)国(Guo)家(Jia)的(De)VVVF变(Bian)频(Pin)器(Qi)已(Yi)投(Tou)入(Ru)市(Shi)场(Chang)并(Bing)获(Huo)得(De)了(Liao)广(Guang)泛(Fan)应(Ying)用(Yong)。(?)