行(Xing)业(Ye)动(Dong)态(Tai)
当(Dang)前(Qian)位(Wei)置(Zhi):(?)三(San)菱(Ling)PLC > 新(Xin)闻(Wen)资(Zi)讯(Xun) > 行(Xing)业(Ye)动(Dong)态(Tai)三(San)菱(Ling)变(Bian)频(Pin)器(Qi)有(You)哪(Na)些(Xie)控(Kong)制(Zhi)方(Fang)式(Shi)?(?)
一(Yi)、(?)变(Bian)频(Pin)器(Qi)的(De)分(Fen)类(Lei)
变(Bian)频(Pin)器(Qi)的(De)分(Fen)类(Lei)方(Fang)法(Fa)有(You)多(Duo)种(Zhong):(?)
按(An)照(Zhao)主(Zhu)电(Dian)路(Lu)工(Gong)作(Zuo)方(Fang)式(Shi)分(Fen)类(Lei),(?)可(Ke)以(Yi)分(Fen)为(Wei)电(Dian)压(Ya)型(Xing)变(Bian)频(Pin)器(Qi)和(He)电(Dian)流(Liu)型(Xing)变(Bian)频(Pin)器(Qi);(?)按(An)照(Zhao)开(Kai)关(Guan)方(Fang)式(Shi)分(Fen)类(Lei),(?)可(Ke)以(Yi)分(Fen)为(Wei)PAM控(Kong)制(Zhi)变(Bian)频(Pin)器(Qi)、(?)PWM控(Kong)制(Zhi)变(Bian)频(Pin)器(Qi)和(He)高(Gao)载(Zai)频(Pin)PWM控(Kong)制(Zhi)变(Bian)频(Pin)器(Qi);(?)
按(An)照(Zhao)工(Gong)作(Zuo)原(Yuan)理(Li)分(Fen)类(Lei),(?)可(Ke)以(Yi)分(Fen)为(Wei)V/f控(Kong)制(Zhi)变(Bian)频(Pin)器(Qi)、(?)转(Zhuan)差(Cha)频(Pin)率(Lu)控(Kong)制(Zhi)变(Bian)频(Pin)器(Qi)和(He)矢(Shi)量(Liang)控(Kong)制(Zhi)变(Bian)频(Pin)器(Qi)等(Deng);(?)
按(An)照(Zhao)用(Yong)途(Tu)分(Fen)类(Lei),(?)可(Ke)以(Yi)分(Fen)为(Wei)通(Tong)用(Yong)变(Bian)频(Pin)器(Qi)、(?)高(Gao)性(Xing)能(Neng)专(Zhuan)用(Yong)变(Bian)频(Pin)器(Qi)、(?)高(Gao)频(Pin)变(Bian)频(Pin)器(Qi)、(?)单(Dan)相(Xiang)变(Bian)频(Pin)器(Qi)和(He)三(San)相(Xiang)变(Bian)频(Pin)器(Qi)等(Deng)。(?)
二(?)、(?)变(Bian)频(Pin)器(Qi)的(De)工(Gong)作(Zuo)原(Yuan)理(Li):(?)
我(Wo)们(Men)知(Zhi)道(Dao),(?)交(Jiao)流(Liu)电(Dian)动(Dong)机(Ji)的(De)同(Tong)步(Bu)转(Zhuan)速(Su)表(Biao)达(Da)式(Shi)位(Wei):(?)
n=(?)60 f(1-(?)s)/p (1)
式(Shi)中(Zhong)n—(?)—(?)—(?)异(Yi)步(Bu)电(Dian)动(Dong)机(Ji)的(De)转(Zhuan)速(Su);(?)f—(?)—(?)—(?)异(Yi)步(Bu)电(Dian)动(Dong)机(Ji)的(De)频(Pin)率(Lu);(?)s—(?)—(?)—(?)电(Dian)动(Dong)机(Ji)转(Zhuan)差(Cha)率(Lu);(?)p—(?)—(?)—(?)电(Dian)动(Dong)机(Ji)极(Ji)对(Dui)数(Shu)。(?)由(You)式(Shi)(1)可(Ke)知(Zhi),(?)转(Zhuan)速(Su)n与(Yu)频(Pin)率(Lu)f成(Cheng)正(Zheng)比(Bi),(?)只(Zhi)要(Yao)改(Gai)变(Bian)频(Pin)率(Lu)f即(Ji)可(Ke)改(Gai)变(Bian)电(Dian)动(Dong)机(Ji)的(De)转(Zhuan)速(Su),(?)当(Dang)频(Pin)率(Lu)f在(Zai)0~(?)50Hz的(De)范(Fan)围(Wei)内(Nei)变(Bian)化(Hua)时(Shi),(?)电(Dian)动(Dong)机(Ji)转(Zhuan)速(Su)调(Diao)节(Jie)范(Fan)围(Wei)非(Fei)常(Chang)宽(Kuan)。(?)变(Bian)频(Pin)器(Qi)就(Jiu)是(Shi)通(Tong)过(Guo)改(Gai)变(Bian)电(Dian)动(Dong)机(Ji)电(Dian)源(Yuan)频(Pin)率(Lu)实(Shi)现(Xian)速(Su)度(Du)调(Diao)节(Jie)的(De),(?)是(Shi)一(Yi)种(Zhong)理(Li)想(Xiang)的(De)高(Gao)效(Xiao)率(Lu)、(?)高(Gao)性(Xing)能(Neng)的(De)调(Diao)速(Su)手(Shou)段(Duan)。(?)
三(San)、(?)变(Bian)频(Pin)器(Qi)接(Jie)线(Xian)图(Tu)
四(Si)、(?)变(Bian)频(Pin)器(Qi)控(Kong)制(Zhi)方(Fang)式(Shi)
低(Di)压(Ya)通(Tong)用(Yong)变(Bian)频(Pin)输(Shu)出(Chu)电(Dian)压(Ya)为(Wei)380~(?)650V,(?)输(Shu)出(Chu)功(Gong)率(Lu)为(Wei)0.75~(?)400kW,(?)工(Gong)作(Zuo)频(Pin)率(Lu)为(Wei)0~(?)400Hz,(?)它(Ta)的(De)主(Zhu)电(Dian)路(Lu)都(Du)采(Cai)用(Yong)交(Jiao)—(?)直(Zhi)—(?)交(Jiao)电(Dian)路(Lu)。(?)其(Qi)控(Kong)制(Zhi)方(Fang)经(Jing)历(Li)了(Liao)以(Yi)下(Xia)四(Si)代(Dai)。(?)
1U/f=C的(De)正(Zheng)弦(Xian)脉(Mai)宽(Kuan)调(Diao)制(Zhi)(SPWM)控(Kong)制(Zhi)方(Fang)式(Shi)
其(Qi)特(Te)点(Dian)是(Shi)控(Kong)制(Zhi)电(Dian)路(Lu)结(Jie)构(Gou)简(Jian)单(Dan)、(?)成(Cheng)本(Ben)较(Jiao)低(Di),(?)机(Ji)械(Xie)特(Te)性(Xing)硬(Ying)度(Du)也(Ye)较(Jiao)好(Hao),(?)能(Neng)够(Gou)满(Man)足(Zu)一(Yi)般(Ban)传(Chuan)动(Dong)的(De)平(Ping)滑(Hua)调(Diao)速(Su)要(Yao)求(Qiu),(?)已(Yi)在(Zai)产(Chan)业(Ye)的(De)各(Ge)个(Ge)领(Ling)域(Yu)得(De)到(Dao)广(Guang)泛(Fan)应(Ying)用(Yong)。(?)但(Dan)是(Shi),(?)这(Zhe)种(Zhong)控(Kong)制(Zhi)方(Fang)式(Shi)在(Zai)低(Di)频(Pin)时(Shi),(?)由(You)于(Yu)输(Shu)出(Chu)电(Dian)压(Ya)较(Jiao)低(Di),(?)转(Zhuan)矩(Ju)受(Shou)定(Ding)子(Zi)电(Dian)阻(Zu)压(Ya)降(Jiang)的(De)影(Ying)响(Xiang)比(Bi)较(Jiao)显(Xian)著(Zhu),(?)使(Shi)输(Shu)出(Chu)最(Zui)大(Da)转(Zhuan)矩(Ju)减(Jian)小(Xiao)。(?)
另(Ling)外(Wai),(?)其(Qi)机(Ji)械(Xie)特(Te)性(Xing)终(Zhong)究(Jiu)没(Mei)有(You)直(Zhi)流(Liu)电(Dian)动(Dong)机(Ji)硬(Ying),(?)动(Dong)态(Tai)转(Zhuan)矩(Ju)能(Neng)力(Li)和(He)静(Jing)态(Tai)调(Diao)速(Su)性(Xing)能(Neng)都(Du)还(Huan)不(Bu)尽(Jin)如(Ru)人(Ren)意(Yi),(?)且(Qie)系(Xi)统(Tong)性(Xing)能(Neng)不(Bu)高(Gao)、(?)控(Kong)制(Zhi)曲(Qu)线(Xian)会(Hui)随(Sui)负(Fu)载(Zai)的(De)变(Bian)化(Hua)而(?)变(Bian)化(Hua),(?)转(Zhuan)矩(Ju)响(Xiang)应(Ying)慢(Man)、(?)电(Dian)机(Ji)转(Zhuan)矩(Ju)利(Li)用(Yong)率(Lu)不(Bu)高(Gao),(?)低(Di)速(Su)时(Shi)因(Yin)定(Ding)子(Zi)电(Dian)阻(Zu)和(He)逆(Ni)变(Bian)器(Qi)死(Si)区(Qu)效(Xiao)应(Ying)的(De)存(Cun)在(Zai)而(?)性(Xing)能(Neng)下(Xia)降(Jiang),(?)稳(Wen)定(Ding)性(Xing)变(Bian)差(Cha)等(Deng)。(?)因(Yin)此(Ci)人(Ren)们(Men)又(You)研(Yan)究(Jiu)出(Chu)矢(Shi)量(Liang)控(Kong)制(Zhi)变(Bian)频(Pin)调(Diao)速(Su)。(?)
以(Yi)上(Shang)就(Jiu)是(Shi)关(Guan)于(Yu)三(San)菱(Ling)变(Bian)频(Pin)器(Qi)几(Ji)种(Zhong)控(Kong)制(Zhi)方(Fang)式(Shi),(?)希(Xi)望(Wang)对(Dui)读(Du)者(Zhe)朋(Peng)友(You)有(You)所(Suo)帮(Bang)助(Zhu)。(?)如(Ru)果(Guo)你(Ni)还(Huan)有(You)疑(Yi)问(Wen),(?)欢(Huan)迎(Ying)咨(Zi)询(Xun)海(Hai)蓝(Lan)在(Zai)线(Xian)客(Ke)服(Fu),(?)我(Wo)们(Men)有(You)专(Zhuan)业(Ye)的(De)技(Ji)术(Shu)人(Ren)员(Yuan)帮(Bang)你(Ni)解(Jie)答(Da)。(?)或(Huo)者(Zhe)查(Cha)看(Kan)我(Wo)们(Men)三(San)菱(Ling)PLC行(Xing)业(Ye)资(Zi)讯(Xun)中(Zhong)相(Xiang)关(Guan)文(Wen)章(Zhang)获(Huo)取(Qu)知(Zhi)识(Shi),(?)深(Shen)圳(Zhen)海(Hai)蓝(Lan)专(Zhuan)注(Zhu)三(San)菱(Ling)工(Gong)控(Kong)。(?)
变(Bian)频(Pin)器(Qi)的(De)分(Fen)类(Lei)方(Fang)法(Fa)有(You)多(Duo)种(Zhong):(?)
按(An)照(Zhao)主(Zhu)电(Dian)路(Lu)工(Gong)作(Zuo)方(Fang)式(Shi)分(Fen)类(Lei),(?)可(Ke)以(Yi)分(Fen)为(Wei)电(Dian)压(Ya)型(Xing)变(Bian)频(Pin)器(Qi)和(He)电(Dian)流(Liu)型(Xing)变(Bian)频(Pin)器(Qi);(?)按(An)照(Zhao)开(Kai)关(Guan)方(Fang)式(Shi)分(Fen)类(Lei),(?)可(Ke)以(Yi)分(Fen)为(Wei)PAM控(Kong)制(Zhi)变(Bian)频(Pin)器(Qi)、(?)PWM控(Kong)制(Zhi)变(Bian)频(Pin)器(Qi)和(He)高(Gao)载(Zai)频(Pin)PWM控(Kong)制(Zhi)变(Bian)频(Pin)器(Qi);(?)
按(An)照(Zhao)工(Gong)作(Zuo)原(Yuan)理(Li)分(Fen)类(Lei),(?)可(Ke)以(Yi)分(Fen)为(Wei)V/f控(Kong)制(Zhi)变(Bian)频(Pin)器(Qi)、(?)转(Zhuan)差(Cha)频(Pin)率(Lu)控(Kong)制(Zhi)变(Bian)频(Pin)器(Qi)和(He)矢(Shi)量(Liang)控(Kong)制(Zhi)变(Bian)频(Pin)器(Qi)等(Deng);(?)
按(An)照(Zhao)用(Yong)途(Tu)分(Fen)类(Lei),(?)可(Ke)以(Yi)分(Fen)为(Wei)通(Tong)用(Yong)变(Bian)频(Pin)器(Qi)、(?)高(Gao)性(Xing)能(Neng)专(Zhuan)用(Yong)变(Bian)频(Pin)器(Qi)、(?)高(Gao)频(Pin)变(Bian)频(Pin)器(Qi)、(?)单(Dan)相(Xiang)变(Bian)频(Pin)器(Qi)和(He)三(San)相(Xiang)变(Bian)频(Pin)器(Qi)等(Deng)。(?)
二(?)、(?)变(Bian)频(Pin)器(Qi)的(De)工(Gong)作(Zuo)原(Yuan)理(Li):(?)
我(Wo)们(Men)知(Zhi)道(Dao),(?)交(Jiao)流(Liu)电(Dian)动(Dong)机(Ji)的(De)同(Tong)步(Bu)转(Zhuan)速(Su)表(Biao)达(Da)式(Shi)位(Wei):(?)
n=(?)60 f(1-(?)s)/p (1)
式(Shi)中(Zhong)n—(?)—(?)—(?)异(Yi)步(Bu)电(Dian)动(Dong)机(Ji)的(De)转(Zhuan)速(Su);(?)f—(?)—(?)—(?)异(Yi)步(Bu)电(Dian)动(Dong)机(Ji)的(De)频(Pin)率(Lu);(?)s—(?)—(?)—(?)电(Dian)动(Dong)机(Ji)转(Zhuan)差(Cha)率(Lu);(?)p—(?)—(?)—(?)电(Dian)动(Dong)机(Ji)极(Ji)对(Dui)数(Shu)。(?)由(You)式(Shi)(1)可(Ke)知(Zhi),(?)转(Zhuan)速(Su)n与(Yu)频(Pin)率(Lu)f成(Cheng)正(Zheng)比(Bi),(?)只(Zhi)要(Yao)改(Gai)变(Bian)频(Pin)率(Lu)f即(Ji)可(Ke)改(Gai)变(Bian)电(Dian)动(Dong)机(Ji)的(De)转(Zhuan)速(Su),(?)当(Dang)频(Pin)率(Lu)f在(Zai)0~(?)50Hz的(De)范(Fan)围(Wei)内(Nei)变(Bian)化(Hua)时(Shi),(?)电(Dian)动(Dong)机(Ji)转(Zhuan)速(Su)调(Diao)节(Jie)范(Fan)围(Wei)非(Fei)常(Chang)宽(Kuan)。(?)变(Bian)频(Pin)器(Qi)就(Jiu)是(Shi)通(Tong)过(Guo)改(Gai)变(Bian)电(Dian)动(Dong)机(Ji)电(Dian)源(Yuan)频(Pin)率(Lu)实(Shi)现(Xian)速(Su)度(Du)调(Diao)节(Jie)的(De),(?)是(Shi)一(Yi)种(Zhong)理(Li)想(Xiang)的(De)高(Gao)效(Xiao)率(Lu)、(?)高(Gao)性(Xing)能(Neng)的(De)调(Diao)速(Su)手(Shou)段(Duan)。(?)
三(San)、(?)变(Bian)频(Pin)器(Qi)接(Jie)线(Xian)图(Tu)
四(Si)、(?)变(Bian)频(Pin)器(Qi)控(Kong)制(Zhi)方(Fang)式(Shi)
低(Di)压(Ya)通(Tong)用(Yong)变(Bian)频(Pin)输(Shu)出(Chu)电(Dian)压(Ya)为(Wei)380~(?)650V,(?)输(Shu)出(Chu)功(Gong)率(Lu)为(Wei)0.75~(?)400kW,(?)工(Gong)作(Zuo)频(Pin)率(Lu)为(Wei)0~(?)400Hz,(?)它(Ta)的(De)主(Zhu)电(Dian)路(Lu)都(Du)采(Cai)用(Yong)交(Jiao)—(?)直(Zhi)—(?)交(Jiao)电(Dian)路(Lu)。(?)其(Qi)控(Kong)制(Zhi)方(Fang)经(Jing)历(Li)了(Liao)以(Yi)下(Xia)四(Si)代(Dai)。(?)
1U/f=C的(De)正(Zheng)弦(Xian)脉(Mai)宽(Kuan)调(Diao)制(Zhi)(SPWM)控(Kong)制(Zhi)方(Fang)式(Shi)
其(Qi)特(Te)点(Dian)是(Shi)控(Kong)制(Zhi)电(Dian)路(Lu)结(Jie)构(Gou)简(Jian)单(Dan)、(?)成(Cheng)本(Ben)较(Jiao)低(Di),(?)机(Ji)械(Xie)特(Te)性(Xing)硬(Ying)度(Du)也(Ye)较(Jiao)好(Hao),(?)能(Neng)够(Gou)满(Man)足(Zu)一(Yi)般(Ban)传(Chuan)动(Dong)的(De)平(Ping)滑(Hua)调(Diao)速(Su)要(Yao)求(Qiu),(?)已(Yi)在(Zai)产(Chan)业(Ye)的(De)各(Ge)个(Ge)领(Ling)域(Yu)得(De)到(Dao)广(Guang)泛(Fan)应(Ying)用(Yong)。(?)但(Dan)是(Shi),(?)这(Zhe)种(Zhong)控(Kong)制(Zhi)方(Fang)式(Shi)在(Zai)低(Di)频(Pin)时(Shi),(?)由(You)于(Yu)输(Shu)出(Chu)电(Dian)压(Ya)较(Jiao)低(Di),(?)转(Zhuan)矩(Ju)受(Shou)定(Ding)子(Zi)电(Dian)阻(Zu)压(Ya)降(Jiang)的(De)影(Ying)响(Xiang)比(Bi)较(Jiao)显(Xian)著(Zhu),(?)使(Shi)输(Shu)出(Chu)最(Zui)大(Da)转(Zhuan)矩(Ju)减(Jian)小(Xiao)。(?)
另(Ling)外(Wai),(?)其(Qi)机(Ji)械(Xie)特(Te)性(Xing)终(Zhong)究(Jiu)没(Mei)有(You)直(Zhi)流(Liu)电(Dian)动(Dong)机(Ji)硬(Ying),(?)动(Dong)态(Tai)转(Zhuan)矩(Ju)能(Neng)力(Li)和(He)静(Jing)态(Tai)调(Diao)速(Su)性(Xing)能(Neng)都(Du)还(Huan)不(Bu)尽(Jin)如(Ru)人(Ren)意(Yi),(?)且(Qie)系(Xi)统(Tong)性(Xing)能(Neng)不(Bu)高(Gao)、(?)控(Kong)制(Zhi)曲(Qu)线(Xian)会(Hui)随(Sui)负(Fu)载(Zai)的(De)变(Bian)化(Hua)而(?)变(Bian)化(Hua),(?)转(Zhuan)矩(Ju)响(Xiang)应(Ying)慢(Man)、(?)电(Dian)机(Ji)转(Zhuan)矩(Ju)利(Li)用(Yong)率(Lu)不(Bu)高(Gao),(?)低(Di)速(Su)时(Shi)因(Yin)定(Ding)子(Zi)电(Dian)阻(Zu)和(He)逆(Ni)变(Bian)器(Qi)死(Si)区(Qu)效(Xiao)应(Ying)的(De)存(Cun)在(Zai)而(?)性(Xing)能(Neng)下(Xia)降(Jiang),(?)稳(Wen)定(Ding)性(Xing)变(Bian)差(Cha)等(Deng)。(?)因(Yin)此(Ci)人(Ren)们(Men)又(You)研(Yan)究(Jiu)出(Chu)矢(Shi)量(Liang)控(Kong)制(Zhi)变(Bian)频(Pin)调(Diao)速(Su)。(?)
以(Yi)上(Shang)就(Jiu)是(Shi)关(Guan)于(Yu)三(San)菱(Ling)变(Bian)频(Pin)器(Qi)几(Ji)种(Zhong)控(Kong)制(Zhi)方(Fang)式(Shi),(?)希(Xi)望(Wang)对(Dui)读(Du)者(Zhe)朋(Peng)友(You)有(You)所(Suo)帮(Bang)助(Zhu)。(?)如(Ru)果(Guo)你(Ni)还(Huan)有(You)疑(Yi)问(Wen),(?)欢(Huan)迎(Ying)咨(Zi)询(Xun)海(Hai)蓝(Lan)在(Zai)线(Xian)客(Ke)服(Fu),(?)我(Wo)们(Men)有(You)专(Zhuan)业(Ye)的(De)技(Ji)术(Shu)人(Ren)员(Yuan)帮(Bang)你(Ni)解(Jie)答(Da)。(?)或(Huo)者(Zhe)查(Cha)看(Kan)我(Wo)们(Men)三(San)菱(Ling)PLC行(Xing)业(Ye)资(Zi)讯(Xun)中(Zhong)相(Xiang)关(Guan)文(Wen)章(Zhang)获(Huo)取(Qu)知(Zhi)识(Shi),(?)深(Shen)圳(Zhen)海(Hai)蓝(Lan)专(Zhuan)注(Zhu)三(San)菱(Ling)工(Gong)控(Kong)。(?)
上(Shang)一(Yi)篇(Pian):(?)三(San)菱(Ling)伺(Si)服(Fu)机(Ji)代(Dai)码(Ma)故(Gu)障(Zhang)判(Pan)断(Duan)方(Fang)法(Fa)
没(Mei)有(You)了(Liao)
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