双色球除五走势图

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双色球除五走势图 主页 > 双色球除五走势图
浅谈城市照明有功和无功节能技术
发布时间:2013-5-19  浏览次数:580

ZAIJIANSHEZIYUANJIEYUEXING、HUANJINGYOUHAOXINGSHEHUIDEJINCHENGZHONG,CHENGSHIZHAOMINGLINGYUJIENENGJIANGHAOBUJINSHIZAIBIXING,QIEDAYOUQIANLIKEWA。MUQIANDUIZAIYONGZHAOMINGXITONGDEJIENENGGAIZAOJIAOWEIJINGJIHESHIYONGFANGSHISHIJIAZHUANGJIENENGSHEBEI,QIYINGYONGDEJIENENGJISHUZHUYAOYOUYOUGONGHEWUGONGJIENENGJISHULIANGLEI。

双色球除五走势图 YI、YOUGONGJIENENGJISHU

双色球除五走势图 YOUGONGJIENENGJISHU DAZHIFENWEISANZHONG,JI:KEKONGGUIZHANBOJISHU、ZIOUJIANGYASHIDIAOKONGJISHUHEWEIDIANNAOZHINENGKONGZHI      JISHU。

KEKONGGUIZHANBOJISHU。QIYUANLISHITONGGUOKONGZHIKEKONGGUIDEDAOTONGJIAO,JIANGDIANWANGSHURUDEZHENGXIANBODIANYAZHANDUANYIBUFEN,CONGERJIANGDISHUCHUDIANYADEPINGJUNZHI,DADAODIAOYAJIEDIANDEMUDE。ZHEIZHONGJIENENGDIAOKONGSHEBEIDUIZHAOMINGXITONGKESHISHIJINGQUEKONGZHISHUCHUDEDIANYA,MANZUZHAOMINGYONGDIANDEZUIJIAZHI,QIEDIAOJIEDIANYADESUDUKUAI,JINGDUGAO,KEFENSHIDUANSHISHIDIAOZHENG,YOUWENYAZUOYONG,ERQIECAIYONGDEDIANZIYUANJIANXIANGDUILAISHUOTIJIXIAO、SHEBEIQING、CHENGBENDI。

但该调控方式存在致命缺陷,由于斩波电压无法实现正弦波输出,还会出现大量谐波,对电网系统谐波污染的危害极大,因此不宜用在有电容补偿的电路中。特别是大功率可控硅斩波型节电设备自身存在谐波污染的缺陷,不仅缩短电力电容器的使用寿命而且增大变压器的铜耗、铁耗,减少变压器的实际使用容量,增加无功损耗,浪费电能,严重时还使电器设备过热,造成开关、接触器等电器设备的误动作或其它危害,目前,在国外发达国家已有明文规定限制谐波含量超标的电器设备并入网使用。 
自耦降压式调控技术。其原理是通过一个自耦变压器机芯,根据输入电压高低情况,连接不同的固定变压器抽头,将电网电压降5、10、15、20V等几个档,以达到降压节电的目的,同时克服可控硅斩波型设备产生谐波的缺陷,实现电压的正弦波输出。这种节电设施只能固定降电压,不能升压和稳压,不能实现电压的自动精确控制。特别当电网电压波动时,调控装置的输出电压也会上下波动,致使照明设施的工作电压处在不稳定的状态,无法达到对电光源的保护作用。当电网电压升高时,节电率不是最佳状态,而电网降低时,可能出现欠压现象,造成光源无法正常点亮,反而降低光源寿命,这是这类节电设施的缺陷所在。 
双色球除五走势图 微电脑控制技术。其原理是使用微电脑控制技术,系统实时采集输出、输入电压信号,与最佳照明电压进行比较,通过计算自动调节,从而保证输出最佳的照明系统工作电压。

TADEJISHUTEDIANSHI:1.CAIYONGWEIDIANNAOJISHUHEGAOKEKAOXINGDERUANJIANHEYINGJIANSHEJISHIXIANKONGZHIGUOCHENGZHINENGHUA。2.ZHENDUIDIANWANGDIANYAPIANGAOHEBODONGXIANXIANG,SHISHIDUIZAIXIANDIANYUANDONGTAIGENZONG,DUIDIANLIULIANXUDIAOJIE、DIAOKONGSHUCHUZUIJIAZHAOMINGDIANYAHEGONGLV,SHIXIANWENDINGGONGZUODIANYA,JIANXIAOGONGZUODIANLIU,TIGAODIANLIZHILIANG,JIEYUEZHAOMINGYONGDIAN。3.DUOSHIDUANJIENENGYUNXING。KEGENJUYONGHUDESHIJIZHAOMINGXUQIU,TONGGUOCHENGXUDUOSHIDUANJIENENGDIANYASHEZHI,MANZUYONGHUDUIBUTONGGUANGYUAN、BUTONGSHIJIANDEXUQIU,SHIXIANZUIJIAZHAOMINGZHUANGTAIHEZUIDAJIEDIANLV。4.SHIXIANGUANGYUANDERUANQIDONGHEMANXIEBOKONGZHIGUOCHENG。YOUYUCAIYONGDIYARUANQIDONGJINXINGCHONGFENYURE,NENGJIANSHAOQIDONGDIANLIUDECHONGJI,YOUXIAOTIGAOGUANGYUANDESHOUMING。ZAIDIAOYA、WENYAGUOCHENGZHONG,ZHINENGDIAOKONGZHUANGZHICAIYONGMANXIEBOFANGSHI,RANGDIANYAZAISHEDINGSHIJIANNEIHUANMANGUODU,BAOZHENGGUANGYUANBUSHOUDIANYA、DIANLIUDECHONGJI,JIANGDIDUIDIANGUANGYUANSUNHUAI,YANZHANGSHIYONGSHOUMING。5.SHIXIANZHENGXIANBOSHUCHU,DUIDIANWANGWUXIEBOWURAN,DUILANGYONGDIANYACHONGJISHIJINAISHUNSHIDAFUHECHONGJINENGLIQIANG。ZHEILEIZHAOMINGJIEDIANJISHUDESHISHICHENGBENSUIRANLVEGAOYUQIANLIANGZHONG,DANYOUYUNENGSHIXIANZHINENGZHAOMINGDIAOKONG,YOUXIAOBAOHUDIANGUANGYUAN,JIANGDIDIANNENGXIAOHAO,JIENENGXIAOGUOMINGXIAN,SUOYIJINGJIXINGHEKEKAOXINGYUANYUANHAOYUQIANLIANGZHONGYOUGONGJIENENGJISHU,SHIMUQIANGUOJIHEGUONEIBIJIAOCHENGSHUDEZHAOMINGJIEDIANJISHU。

双色球除五走势图 ER、WUGONGJIENENGJISHU

双色球除五走势图 WUGONGGONGLVTONGYOUGONGGONGLVYIYANG,SHIBAOZHENGDIANNENGZHILIANGBUKEFENGEDEYIBUFEN。YONGDIANXITONGYINGGAIBAOZHENGWUGONGGONGLVDEPINGHENG,FOUZEJIANGHUIYINQIXIANLUSUNHAOZENGDA,DIANYAJIANGDI,GONGLVYINSHUXIAJIANG,SHENZHIZAOCHENGSHEBEISUNHUAI。ZAIDAOLUZHAOMINGZHONG,WUGONGSUNHAODAILAIDELILVDIANFEIHEFUJIADIANFEI(WUGONGSUNHAOFAKUAN)YUEZHANQUANBUDIANFEIDE20%。YOUCIKEJIAN,ZENGZHUANGWUGONGBUCHANGSHEBEI,TIGAOWANGLUODEGONGLVYINSHU,DUIDIANWANGDEJIANGSUN、JIEDIANYIJISHEBEIDEANQUANYUNXINGJUYOUJIWEIZHONGYAODEZUOYONG。

双色球除五走势图 MUQIANZAIDAOLUZHAOMINGZHONG,CAIYONGWUGONGJIENENGJISHUYOUSANZHONG:DIANRONGQIDANDENGBUCHANG、ZAOQIDEDIANRONGQIJIZHONGBUCHANGHEWEIDIANNAOZHINENGXINGJIZHONGBUCHANG。

双色球除五走势图 DIANRONGQIDANDENGBUCHANGJISHU。TASHIZAIDANDENGDENGJUZHONGANZHUANGDIANRONGQI,FENSANBUCHANG,DADAOTIGAOGONGLVYINSHUDEMUDE,DUIYUYITIAOLUSHENZHIJITIAOLUDELUDENGSHESHIJUYOUJIAOHAODEBUCHANGXIAOGUO。DANSHIDUIYUBUTONGDEGONGDIANTAIQU,YOUYUBIANBULU、JIE、XIANG、XIAOQUDENGDEDENGJULEIXINGBUTONG,GUANGYUANZHONGLEIBUTONG,TEBIESHIDUOSHUZHANQUANZHUANGBUTONGWASHUDEGUANGYUAN,YUSHIZHENGGEZHANTAIGONGDIANXITONGGONGLVYINSHUJIUWUFADADAOZHIBIAOYAOQIU。CIWAI,DIANRONGQIKAILUSUNHUAIBUYIJIANCE,NANYUWEIHU,ZHANGQIYUNXINGSHIBITIGAOZHENGGEGONGDIANZHANTAIDEWUGONGGONGLVSUNHAO,JIANGDIGONGDIANXIAOLV,ZAOCHENGDIANNENGLANGFEI,ZHEISHIMUQIANDAOLUZHAOMINGLINGYUPUBIANCUNZAIDEZHUANGKUANG。

早期的电容器集中补偿技术。其特点是,采用机械式接触器控制电容器投切方式,具有集中补偿、自动调控无功功率的特点。其缺点是,触电电流大,有涌流产生,易烧毁触点,缩短接触器、电容器使用寿命,而且转换开关时间长,易造成补偿滞后,不适应三相不平衡负荷。该技术是九十年代初期的标准,属于淘汰型技术,目前已经很少采用。 
  
微电脑智能性集中补偿技术。采用单机或DSP芯片以及大规模集中电路作控制模块和数据采集模块,能自动跟踪电网无功功率变化,快速采样、运算并发出投切信号。开关模块采用大功率晶闸管实现电容器组的零电压投入和零电流切除,无浪涌电流冲击、无火花和谐波干扰。该技术作为新一代的集中补偿技术,目前已被广泛应用。

QIZHUYAOJISHUTEDIAN:1.SHIXIANKONGZHIMOKUAIDESHUZIHUAHEZHINENGHUA,QUEBAOKONGZHIJINGDUYUNXINGDEKEKAOXING;2.QUANZIDONGFENXIANG、FENDUANZIDONGANXUBUCHANG;3.WULILIANGQUYANGKEWEIWUGONGDIANLIUXIANGJIAOCHADENGZONGHELIANG,GAISHANDIANWANGGONGLVYINSHU,JIANGDIZONGDIANLIU,SHIFUHEGONGLVYINSHUKONGZHIZAI0.95—0.99;4.KEGENJUSANXIANGWUGONGGONGLVDEDIANLIUJUTIQINGKUANG,XUANZEDANXIANGFENBIEJINXINGBUCHANG,BUCHANSHENGYONGLIUCHONGJI;5.CAIYONGWUCHUDIANKAIGUAN,QIETISUDUKUAI,ZHENGJISHIYONGSHOUMINGZHANG;6.KELINGHUOSHEDINGGUOYA、QIANYA、QIANLIUYANSHIDENGCANSHU,JUYOUWANSHANDEYUEXIANBAOJINGHEGUOYA、QIANYA、QUEXIANG、QUELING、XIEBO、YUEXIANBAOHUSUOBIGONGNENG,BAOZHENGXITONGANQUANYUNXING;7.CAIYONG“ZIYUSHI”DIANRONGQI,JUYOUSHIYONGSHOUMINGZHANG、KEKAOXINGQIANG、WENSHENGXIAO、WUXUZHUANMENSANREZHUANGZHIDEYOUDIAN;8.JUYOUSHUJUCAIJIGONGNENGHEBIAOZHUNDETONGXINJIEKOU,KESHIXIANYUANCHENGSHISHIJIANCEHEJISUANJILIANWANGGUANLI。CIWAI,CAIYONGJIZHONGBUCHANGJISHU,YUANYOUDEDANDENGBUCHANGZHUANGZHIDUILUDENGXITONGBINGBUGOUCHENGYINGXIANG,ERNENGGENGHAOFAHUIJIZHONGBUCHANGYUFENSANBUCHANGXIANGJIEHEDEZUOYONG,JUYOUHENHAODEBUCHANGHEJIENENGXIAOGUO。

ZONGZHI,YOUGONGJIENENGJISHUHEWUGONGJIENENGJISHUGEYOUYOUSHI,YINGGAIGENJUGONGDIANWANGLUOHELUDENGSHESHIZHUANGKUANGJINXINGZONGHEFENXIXUANZE。BIZHERENWEI:YOUGONGJIENENGJISHUYICAIYONGWEIDIANNAOKONGZHIJISHU,WUGONGJIENENGJISHUYICAIYONGDIANRONGDANDENGBUCHANGJISHU。 

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