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高压电机软起动方法及装置技术原理

JISHULINGYU:

    本技术涉及高压电机拖动控制技术领域。尤其涉及一种高压电机软起动装置。主要适用于串接在高压电机定子绕组回路中,进行调压软起动,特别适用于500KW以上,6—10KV大功率高压电机的软起动、软停机。

高压电机软启动

JISHUBEIJING

    目前,对于高压电机软起方法及装置有多种, 一般采用电抗器作为大 功率高压电机的起动设备,虽然结构简单,但由于起动过程中电抗(阻抗) 值固定不变,起动特性较硬,并易产生二次冲击,选配不当时还会造成起动不 成功的现象。此外还有用晶闸管进行调压的、用液体电阻进行调压的、用励磁 方式调压的等。用晶闸管进行调压的是直接在高压回路采用晶闸管进行调压的固态软起动,由于受可控硅器件耐压的限制, 一直不好解决,其可靠性不是很 高,用户的维修技术跟不上,而且晶闸管输出电压中含有大量的高次谐波,会对高压电动机造成伤害,也会对电网产生谐波污染,固存在高风险,高成本和高谐波污染,技术难度大,过载能力弱,维护成本高的问题。用液体电阻进行 调压的,是在高压回路中,串联液体电阻,采用极板在液体中运动,改变极板距离,而改变液体的电阻,因而改变电动机的起动电压,其效果尚可,虽成本低,无谐波污染,但受使用环境和温度影响,在高寒和北方地区液体易冻结, 而且在液体中通入高压电,危险性大,由于液体有腐蚀性,极板及水箱易被腐蚀,液体容易蒸发,故维护工作量大,维护成本高,使用寿命短,而且起动时同时消耗大量有功功率,能耗大。用励磁方式调压的,是采用三相交流绕组和 一个直流励磁绕组,通过调接励磁的大小来调节交流绕组的磁饱和度,达到起动过程可调目的。但由于注入直流,噪音大,调节范围有限,谐波污染大,损耗也大。 


JISHUNEIRONG

    BENJISHUDEMUDEZAIYUTIGONGYIZHONGQIDONGANQUANKEKAO、JIEYUENENGYUAN、WUXIEBOWURAN、CAOZUOJIANDANDEGAOYADIANJIRUANQIDONGFANGFAJIQIZHUANGZHI。BENJISHUTIGONGDEZHEIZHONGGAOYADIANJIRUANQIDONGFANGFASHIZAIGAOYADIANDONGJIYUNXINGDIANYUANKAIGUANDE LIANGDUANMEIXIANGDIANYUANDOUBINGLIANCIZUKEDIAOJIEDEDIANGANQI,GAIDIANGANQIDECIZUDIAOJIECAIYONGSHIDIANGANQI XIANQUANYUDIANGANQICIXINFASHENGXIANGDUIYIDONGLAISHIXIAN。ANZHAOSHANGSHUFANGFABENJISHUHAITIGONGLEGAOYADIANDONGJIRUANQIDONGZHUANGZHI,TABAOKUOGAOYADIANDONGJI YUNXINGDIANYUANKAIGUAN,HAIBAOKUODIANGANQIXIANQUAN、DIANGANQICIXIN、DAIDONGDIANGANQIXIANQUANHUOZHEDIANGANQI CIXINSHITAMENFASHENGXIANGDUIYIDONGDEZHISHAOYIGEQUDONGJIGOUJIXIANGYINGDECHUANDONGJIGOU,ZAIYUNXINGDIANYUANKAIGUANDEMEIXIANGDIANYUANSHURUSHUCHUDUANDOUBINGLIANYOUSUOSHUDIANGANQIXIANQUAN。BENJISHUZHUANGZHIZHONGDEQUDONGJIGOUKEYICAIYONGDIANDONGJIQUDONGJIGOUHUOZHEQIDONGQUDONGJIGOUHUOZHE YEDONGQUDONGJIGOU。BENJISHUZHUANGZHICHAOTONGFANGXIANGYIDONGDEDIANGANQICIXINHUOZHEDIANGANQIXIANQUANYOUYIGEQUDONGJIGOUDAIDONG。YOUYUBENJISHUZAIGAOYADIANJIYUNXINGDIANYUANKAIGUANMEIXIANGDIANYUANDESHURUSHUCHUDUANDOUBINGLIANYOUCIZUKEDIAOJIEDEDIANGANQI,JIJIANGSUOSHUDIANGANQICHUANLIANZAIGAOYADIANDONGJIQIDONGHUILUZHONG,DANGCIZUFA SHENGGAIBIANSHI,DIANKANGZHIFASHENGGAIBIAN,GENJUCHUANLIANDIANLUDEFENYAYUANLI,KESHIGAOYADIANJIDEQI DONGDIANYADEDAOPINGWENGAIBIAN,DADAODIANDONGJIDERUANQIDONGXIAOGUO,FANZHIKEDADAODIANDONGJIRUANTINGJIXIAOGUO。


BENJISHUYOUXIASHUYOUDIAN

1、 BENJISHUCAIYONGGAIBIANDIANGANQICIXINZAIDIANGANQIXIANQUANZHONGDEWEIZHI,LAIGAIBIANXIANQUANCICHANG ZHONGCIJIEZHIDEDAOCILV,ERGAIBIANDIANGANQIXIANQUANDIANGAN(ZUKANG)ZHI,ZHEISHIYIZHONGJIANJINJIANTUIDE GAIBIAN,NENGSHIGAOYADIANJIKEKAODIPINGHUAQIDONG,BUCUNZAIERCICHONGJI。

2、 NENGBAOCHIGONGPINDIANWANGDEZHENGXIANBO,WUXIEBOWURAN,DUIDIANDONGJIYEWURENHESHANGHAIYINGXIANG。

3、 BUSHOUSHIYONGHUANJINGHEWENDUYUDILIWEIZHIDEYINGXIANG。

4、 YOUYUTONGGUODIANGANXIANQUANDIAOYA,WUYOUGONGGONGLVSUNHAO,YINERHAONENGJIXIAO,GUJIENENGXIAOGUOHAO。

5、 JIEGOUJIANDAN,RONGYIZHIZAO,WEIHUJISHUYIDONGJIANBIAN,WEIHUCHENGBENDI。

6、 NENGSHIGAOYADIANJIANQUANKEKAOQIDONGHUOTINGJI,SHIYONGSHOUMINGZHANG,GUOZAINENGLIQIANG,CAOZUOJIANDAN。


TU1SHIBENJISHUDIANQIYUANLITU; TU2SHIBENJISHUSHISHIFANGSHIYIDEJIEGOUSHIYITU; TU3SHITU2YANA-AXIANDEPOUSHITU; TU4SHIBENJISHUSHISHIFANGSHIERDEJIEGOUSHIYITU。


JUTISHISHIFANGSHI

   BENJISHUGAOYADIANJIRUANQIDONGFANGFASHIZAIGAOYADIANDONGJIYUNXINGDIANYUANKAIGUANDELIANGDUANMEIXIANGDIAN YUANDOUBINGLIANCIZUKEDIAOJIEDEDIANGANQI,GAIDIANGANQIDECIZUDIAOJIECAIYONGSHIDIANGANQIXIANQUANYUDIANGAN QICIXINFASHENGXIANGDUIYIDONGLAISHIXIAN。YONGZHEIZHONGFANGFAGOUJIANDEZHUANGZHIYOUHENDUOZHONG,YIXIAJUCHULIANGZHONG DIANXINGDESHISHIFANGSHI-SHISHIFANGSHIYICANJIANTU1-TU3。

   BENSHISHIFANGSHIBAOKUOGAOYADIANDONGJIYUNXINGDIANYUANKAIGUANl,HAIBAOKUODIANGANQIXIANQUAN2、DIANGANQI CIXIN3、QUDONGJIGOU4、CHUANDONGJIGOU5、GUDINGZHIJIA6、GUIDAO7,DUIYUGAOYADIANDONGJIYUNXING DEMEIXIANGDIANYUANERYAN,YUNXINGDIANYUANKAIGUAN1DESHURUSHUCHUDUANDOUBINGLIANYOUSUOSHUDIANGANQIXIANQUAN2 (JIAN TUl)。CONGTU2KEYIKANCHUQUDONGJIGOU4KEYICAIYONGXIANYOUJISHUZHONGDESUOYOUQUDONGJIGOU,RUDIAN JIQUDONGJIGOU(DIANJIYIPIDAILUNHUODIANJIYICHILUNDENG)HUOZHEQIDONGQUDONGJIGOU(RUQIGANGYITUI DONGGANDENG)HUOZHEYEDONGQUDONGJIGOU(RUYEYAGANGYITUIDONGGANDENG),CHUANDONGJIGOU5ZEYUQUDONGJIGOUXIANGSHIYING。KEGENJUDIANDONGJISUOTUODONGSHEBEIDEQINGZHONGHEDIANWANGDECHENGSHOUNENGLI,ZHENGDINGZUIDAQIDONGDIANLIUZHI。JIANGQIDONGDIANLIUKONGZHIZAIZHENGDINGDEQIDONGDIANLIUZUIDAZHIYIXIA,ZHIDAOQIDONGWANCHENG,DIANDONGJIDADAOZHENGCHANGZHUANSUSHI,HESHANGYUNXINGDIANYUANKAIGUAN1,GAOYADIANDONGJIQIDONGCHENGGONG,ZHENGCHANGYUNZHUAN,DIANGANQIXIANQUANCHENGPANGLU。


SHIYONGYAOQIU

山东11选5走势图1、YIZHONGGAOYADIANJIRUANQIDONGFANGFA,QITEZHENGSHIZAISUOSHUGAOYADIANDONGJIYUNXINGDIANYUANKAIGUANDEMEIXIANGDIANYUANSHURUSHUCHUDUANDOUBINGLIANCIZUKEDIAOJIEDEDIANGANQI,GAIDIANGANQIDECIZUDIAOJIECAIYONGSHIDIANGANQIXIANQUANYUDIANGANQICIXINFASHENGXIANGDUIYIDONGLAISHIXIAN。

2、 YIZHONGANSHIYONGYAOQIUlSUOSHUFANGFAZHIZUODEGAOYADIANJIRUANQIDONGZHUANGZHI,BAOKUOGAOYADIANJIYUNXINGDIANYUANKAIGUAN(1),QITEZHENGZAIYUHAIBAOKUODIANGANQIXIANQUAN(2)、DIANGANQICIXIN(3)、 DAIDONGDIANGANQICIXINHUOZHEDIANGANQIXIANQUANSHITAMENFASHENGXIANGDUIYIDONGDEZHISHAOYIGEQUDONGJIGOU(4) JIXIANGYINGDECHUANDONGJIGOU(5),SUOSHUYUNXINGDIANYUANKAIGUAN(1)DEMEIXIANGDIANYUANSHURUSHUCHUDUANDOUBINGLIAN YOUSUOSHUDIANGANQIXIANQUAN(2)。

山东11选5走势图3、 GENJUSHIYONGYAOQIU2SUOSHUGAOYADIANJIRUANQIDONGZHUANGZHI,QITEZHENGZAIYUSUOSHUQUDONGJIGOU (4)CAIYONGDIANDONGJIQUDONGJIGOUHUOZHEQIDONGQUDONGJIGOUHUOZHEYEDONGQUDONGJIGOU。

4、 GENJUSHIYONGYAOQIU2HUO3SUOSHUGAOYADIANJIRUANQIDONGZHUANGZHI,QITEZHENGZAIYUCHAOTONGFANGXIANG YIDONGDEDIANGANQICIXIN(3)HUOZHEDIANGANQIXIANQUAN(2)YOUYIGEQUDONGJIGOUDAIDONG。

5、 GENJUSHIYONGYAOQIU4SUOSHUGAOYADIANJIRUANQIDONGZHUANGZHI,QITEZHENGZAIYUSUOSHUDIANGANQIXIAN QUAN(2)ZAIGUDINGZHIJIASHANG(6),CHUANDONGJIGOU(5)CAIYONGXIANGNIEHEDESIGAN(51)HESIMU(52), QIZHONGSIGAN(51)KEZHUANDONGDIANZHUANGZAIGUDINGZHIJIA(6)SHANG,GEDIANGANQICIXIN(3)DEWEIBU LIANWEIYITI,SIMU(52)SHEZAIDIANGANQICIXIN(3)SHANG,GEDIANGANQIXIANQUAN(2)NEISHEYOUGONG DIANGANQICIXIN(3)YIDONGDEGUIDAO(7),YOUQUDONGJIGOU(4)TONGGUOSIGAN(51)DAIDONGDIANGAN QICIXIN(3)YANSUOSHUGUIDAOYIDONG。

山东11选5走势图6、 GENJUSHIYONGYAOQIU4SUOSHUGAOYADIANJIRUANQIDONGZHUANGZHI,QITEZHENGZAIYUSUOSHUDIANGANQICI XIN(3)ANZHUANGZAIGUDINGZHIJIA(6)SHANG,CHUANDONGJIGOU(5)CAIYONGXIANGNIEHEDESIGAN(51)HESI MU(52),QIZHONGSIGAN(51)KEZHUANDONGDIANZHUANGZAIGUDINGZHIJIA(6)SHANG,GEDIANGANQIXIANQUAN(2) ANZHUANGZAIYIGEXIANQUANJIA(8)SHANG,SIMU(52)SHEZAIXIANQUANJIA(8)SHANG,YOUQUDONGJIGOU(4) TONGGUOSIGAN(51)DAIDONGDIANGANQIXIANQUAN(2)YIDONG。


SHIYONGZHAIYAO

    BENJISHUGONGKAILEYIZHONGGAOYADIANJIRUANQIDONGFANGFAJIZHUANGZHI。BENJISHUSHIZAIGAOYADIANJIYUNXINGDIANYUANKAIGUANDELIANGDUANMEIXIANGDIANYUANDOUBINGLIANCIZUKEDIAOJIEDEDIANGANQI,GAIDIANGANQIDECIZUDIAOJIECAIYONGSHIDIANGANQIXIANQUANYUDIANGANQICIXINFASHENGXIANGDUIYIDONGLAISHIXIAN。BENJISHUJUYOUQIDONGDIANLIUXIAOQIEPINGHUA,WUXIEBOWURAN,DUIDIANDONGJIWUSHANGHAIYINGXIANG、CHENGBENDI、JIENENG、GUOZAINENGLIQIANGDEYOUDIAN。ZHUYAOYONGYUGAOYADIANJIRUANQIDONG,RUANTINGJI。


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