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浅谈光伏技术之逆变器的故事

发布日期:2019-10-04 作者: 点击:

1.GUANYUGUANGFUFUPINXIANGMU

前一段时间,国家质检总局曝光了一批逆变器不合格名单。在本不平静的光伏圈里,又激起了波澜。笔者看了一下不合格原因,也看了光伏发电厂家名单(名单中不乏上市公司,也不乏主要产品在10KW以下的著名厂家)基本就做出了判断:原因不在逆变器光伏发电厂家,在电网。

JUEDADUOSHUNIBIANQIGUANGFUFADIANCHANGJIAZAICHENGSHILIYINGYONGDOUMEIYOUSHENMEWENTI,DANSHIDAOLENONGCUN,TEBIESHIMEIYOUJINXINGGUONONGWANGGAIZAODENONGCUNJIUHUIWENTIPINCHU。

1.1XIAMIANYIGEJIAODIANXINGDEYINWEIDIDIANYABUNENGBINGWANGDEANLI

“MOU3TAINIBIANQIANZHUANGZAIMOUZHUANGNONGHUJIA。YOU1TAISHIDANDUANZHUANGZAIYIGENONGHUJIA。LINGWAILIANGTAI5KWNIBIANQIANZHUANGZAILINGWAIYIGENONGHUJIA。ZHEI3TAINIBIANQIZAIWENDINGYUNXINGYIZHOUHOU,KAISHICHUXIAN3TAINIBIANQIFANFUQIDONG。QIEZAITIANQIWENDUGAODEQINGKUANGXIA(ZHONGWU12DIAN-XIAWU15DIAN),JIBENTINGZHIGONGZUOBUFADIAN。”

YUANYIN:YOUYUGAICUNSHIGEDACUN。BINGQIEGAICUNDEDIANYAPIANDI。ANZHUANGSHIQIWENHAIBIJIAOSHIYI,SHUNLIBINGWANG。GUOLEYIXINGQIZUOYOUDESHIJIAN,DANGDIQIWENSHENGGAO,DABUFENDENONGHUJIALIKAIKONGDIAO,DANGYONGDIANLIANGDALEYIHOU,ZHISHIDANGDIDEDIANWANGDIANYAPIANDI。CHAOCHULENIBIANQIDEJIAOLIUDIANYASHUCHUFANWEIDEXIAXIAN(187-270VAC)。YOUYIZHOUHOU,XIANGMUXIANCHANGXIAGUODAYU,CUNLIYONGDIANLIANGBIANSHAO,DIANWANGDEDIANYAJIUYOUMANZULENIBIANQIDIANYAYAOQIU,XITONGGONGZUOZHENGCHANG。”

大发体育HENDUOGONGSIYUDAOZHEIZHONGQINGKUANGDOUHUIBANIBIANQIDEDIANYADIAOKUAN,CONGYUANLAIDE(178-270)VACDIAODAO(140-270)VAC,YOUHAIWAISHICHANGDEQIYEHUIBA“ANGUI”DIAOZHENGDAO“AOZHOUANGUI”。CONGERZAOCHENGCHOUJIANBUHEGE。

光伏发电厂家

1.2HAIYOUYIZHONGQINGKUANGSHIDIANYACHAOSHANGXIAN,DAOZHINIBIANQIBUGONGZUO。

大发体育“MOUFUPINXIANGMUJISHITAINIBIANQIBINGLIANZUWANGSHI,NIBIANQICHUXIANSHUCHUDIANYAGUOGAODAOZHIDEZHONGLIAN,YOUYICHANGXIANGSHENGDENGWENTI,YINGXIANGYONGHUFADIANLIANG。”

大发体育WEISHENMEHUICHUXIANZHEIYANGDEXIANXIANG?WOMENZUOYIGEJISUAN。

SHOUXIAN,XIANLUDEDIANZU,JINIBIANQIDUANDAOBIANYAQIDUANDEZUKANG(ZHEILIANZHAOCHUNDIANZUJISUAN,JIAOLIUDIANBIJIAOFUZA)

R=ρ*L/STONGDIANZULV0.0175,LVDIANZULV0.0283(XIANGMUXIANCHANGSHIYONGLVXIAN)

DANGDIBINGWANGDIANLIBIANYAQI1400MIL=1400M

大发体育SHUDIANXIANJING95mmS=95

大发体育R=ρ*L/S=0.0283*1400/95=0.4Ω

大发体育GAIXIANGMUMEITIAOHUOXIANSHANGPINGJUNYOU13TAIJIQI,TAIYANGGUANGZHAOQIANGSHI,PINGJUNYITAIJIQIWANGWAISHUCHUDIANLIUWEI10A,NEIME13TAIJIQIDIANLIUJIUWEI130A,CISHIDIANYAZUIDANENGBEITAISHENG130*0.4=52V!JICONGBIANYAQIDAONIBIANQIDUANDEDIANYAHUIBEITAISHENG52V。GENJUZAIXIANCHANGCESHIJIEGUO,ZHONGWUSHI,BIANYAQIDIYACEDEDIANYAZUIGAODADAO240V,JIASHANGDIANYATAISHENG,DAONIBIANQISHUCHUDUANDIANYAJIANGDADAO240+52=292V,SHIJITAISHENGDEDIANYAHUIGENGGAO。CHAOCHUNIBIANQIDIANYAFANWEI,SUOYIHUIBAOCUOZHONGLIAN。ZAIGUANGZHAORUOSHI,NIBIANQIWANGWAISHUCHUDIANLIUXIAO,DIANYATAISHENGXIAO,NIBIANQISHUCHUDUANDIANYAZAIZHENGCHANGFANWEINEI,YEJIUNENGZHENGCHANGFADIAN。ZHEIYESHIWEISHENMEXIANCHANGYOUSHIZHONGLIANXIANXIANGGENGPINFANDEYUANYIN。

NIBIANQICHANGJIAYEHUIBADIANYA(178-270)VACDESHANGXIANDIAOGAO,YOUSHIHOUHUIDIAOGAODAO320VAC。CONGERYEHUIZAOCHENGCHOUJIANBUHEGE。

大发体育1.3GUANGFUFUPINYUDAODEWENTI

大发体育YOUYUGUOJIANONGCUNDIANWANGFENBUGUANG,FAZHANBUYI,NONGWANGDEDIANNENGZHILIANGYIXIEWENTIHETEDIANJIGUANGFUFADIAN,YOUQINIBIANQIDUANDEYUNXINGDAILAILEYIDINGTIAOZHAN,TONGSHIXIANXINGDEGUANGFUNIBIANQIBIAOZHUNGENGDUODESHIYIJUDIMIANDIANZHAN,FADADIQUDIANWANGERSHEJI,YINCICUNZAIZHEYIDINGDEBUSHIYINGXING,ZHEIXIEJUNYAOQIUGUANGFUFADIANSHEJIDUAN,EPCDUANDENGZUOCHUHELIDESHEJIHEKAOLIANG,HUODEZUIDADEFADIANWENDINGXINGHEXIAOLV。

DUIGUANGFUFADIANERYAN,NONGCUNDIANWANGYOURUXIAJIGEDIANNENGZHILIANGTEDIANRONGYIYINGXIANGDAONIBIANQIDEZHENGCHANGYUNXING:

1)XIANLUSUNHAODA

XIANLUDAOXIANYOUXIAOJIEMIANJIAOXIAOHENDUOFENBUSHIGUANGFUFADIANZHUANGZHISHIYITUOXIANYOUDESHUPEIDIANSHESHIJINXINGDIANZHANJIANSHE,YIXIEQUYUYOUYUSHIGONGJIAOZAO,JIYOUSHESHIRONGLIANGPIANDI,DUIFUHE(GUANGFUFADIANRONGLIANG,DUIDIANWANGERYANSHIYIGEFANXIANGDEFUHE)YUQIBUZHUNQUE,DAOZHIDAOXIANJIEMIANXUANZEGUOXIAO,CAIYONGLVXIANDIANZULVPIANGAO,DIANYUANDIANJIANSHEJIAOSHAO,DIYAPEIDIANXIANLUGONGDIANBANJINGJIAOZHANG,DANGGONGDIANBANJINGCHAOGUOYIDINGZHANGDUSHI(HELIJIANYIZUIDABUCHAOGUO0.5km,PEIBIANYINGSHEZAIJIEJINFUHEZHONGXINDEWEIZHI),XIANLUSUNHAOTAIDA,JUNZAOCHENGNIBIANQICEDUANDIANYAYUANGAOYUPCC(GONGGONGJIERUDIAN)DIANYA,DAOZHINIBIANQIDIANYAFANWEIGAOCHUFADINGYAOQIUFANWEI(CQCDIANYAFANWEI187V—252V),NIBIANQIPINFANTIAOTUO,FADIANLIANGJIAOSHAOHUOWUFAZHENGCHANGGONGZUO;

2)SANXIANGDIANYABUPINGHENGNONGCUNDIANWANGDIANGONGSHUIPINGDI,SHEJIHUOZENGRONGSHISANXIANGFUZAIBUPINGHENG,YINQIZHONGDIANPIANYI,DAOZHIXIANGDIANYABUPINGHENG,FUZAIQINGDEYIXIANGDIANYAPIANGAO,FUZAIZHONGDEYIXIANGDIANYAPIANDI,BUFENDIQUYINCICHAOGUOGUOBIAOYAOQIUDE《SANXIANGDIANYAYUNXUBUPINGHENGDU》YAOQIU,DAOZHINIBIANQIWUFAZHENGCHANGGONGZUO;

3)PEIBIANRONGLIANGXIAO,XITONGZUKANGGAOFUHEGAOFENGSHICHUXIANCHAOFUHEQINGKUANG,DAOZHIDIANYAPIANDI,FUZAIDIGUSHIDIANYAYOUPIANGAO,DANRIZHOUQINEIDIANYAYOUMINGXIANDEDAFANWEIBIANHUA,CHAOGUO《GONGDIANDIANYAYUNXUPIANCHA》FANWEI,BIANDIANZHANZHUBIANCAIYONGYOUZAIZIDONGDIAOYASHIBIANYAQIKEYIJIANHUANZHEIGEWENTI;PEIBIANRONGLIANG、PEIDIANXIANLUZHANGHAIYOUYIGEYANZHONGDEWENTISHISHIDEXITONGZUKANGXIANGBIHENDA,XITONGZUKANGDADAILAIDEXIANZHUWENTISHISHIDENIBIANQIDUOJIBINGLIANDEXITONGWENDINGXINGXIAJIANG、XIEBOFANGDA,DANYIDIANSHULIANGYUEDUOYUEMINGXIAN,TONGCHANGNIBIANQICHANGJIAHUIXIANZHINIBIANQIJIAOLIUDUANDAOPCCDIANDECHUANSHUJULI,YIJIZONGDEBINGLIANSHULIANG。

1.4GERENDUINONGCUNGUANGFUFUPINDEJIANYI:

NONGWANGMUQIANTEDIANSHIDIANWANGCHA、XIANSUNDA、ANQUANYONGDIANSHUIPINGYOUDAITIGAO。QIZHONGXIANSUNSHIZHIGONGDIANXITONGZAICHUANSHUDIANNENGDEGUOCHENGZHONG,ZAIXIANLUHEBIANYAQIZHONGDESUNHAODIANLIANG。

XIANSUNYOUYIXIAJIZHONGBIAOXIAN。

大发体育(1)SHEBEILOUDIAN:XIANGZHENQIYE、NONGHUDADUOYIBIANYIJIAGEGOUJINCHENGSHITAOTAIXIALAIDEFEIBIAOZHUNYONGDIANSHEBEI,ZHANGNIANSHIXIU,LOUDIANYANZHONG。

大发体育(2)XIANLULAOHUA:JIZHONGBIAOXIANZAICHAIGUXIAN,XIAOXIANJINGDAOXIANZHANGNIANFUHEZHONG,JIASULAOHUA,NANJINGFENGYU,LOUDIANDUO,DIANYAJIANGDA。

大发体育(3)SHEBEICHAOZAI:DADUOSHUNONGHUYIFANGMIANSHIQUEFADIANQIZHISHI,LINGYIFANGMIANSHITUSHENGQIANMANGAN,SHIDEPEIBIAN、DIANJI、XIANLUCHAOZAIYUNXING,REHAOZENGJIA。

大发体育(4)PEIDIANBIANYAQIRONGLIANGBUHESHI,SUNHAOGAO:YOUYUXIANLUGONGDIANBANJINGGUOZHANG,DIANYAZHILIANGCHA,XIANSUNDA,HAODIANYANZHONG。

(s)SILALUANJIE,SHINEIBUXIANCHA:NONGCUNYUNONGMANGJIJIE、JIHUICHANGHE,SILALUANJIE,WEIZHANGYONGDIAN;SHINEIXIANLUFUSHESIZIANZHUANG,LAOHUASHIXIU,BUDIANYANZHONG。

(6)GUANLIHUNLUAN:BIAOXIANZAIQIEDIANPUBIAN、BIAOJISHIZHUN、YONGRENQINGDIAN、ZHANGMUHUNLUANDENGFANGMIAN,GUANLISHIKONG。【1】

YOUYUSHANGSHUYINSU,CONGJISHUCENGMIANLAISHUO,DUIYUPIANYUAN、MEIYOUJINGGUONONGWANGGAIZAODENONGCUN,BUSHIHEYIJIAYIHUYITAINIBIANQI。ERYINGGAIGUIHUAWEIYIGEBINGWANGDIAN,JIANSHAONIBIANQIDESHIYONGLIANG。CONGQITACENGMIANLAISHUO,ZHONGGUORENYOUYIGETEDIAN“BUHUANGUA,ERHUANBUJUN”。RUGUOLIBIANYAQIJIAOYUANDEYONGHU,TIANTIANCHUWENTI,SHOUYIXIANGDUIJIANSHAO,HENNANBAOZHENGTAMENMEIYOUYIJIAN。

大发体育2.GUANYUNIBIANQIRENSHIDEYIXIEWUQU

BUZHIDAOCONGSHENMESHIHOUKAISHI,GUANGFUSHEJIKAISHILIUXINGNIBIANQICHAOPEI。ZHEIMEIYOUCUO,DANSHIDAJIACHAOPEIYOUXIEGUOTOULE。

大发体育WOMENYONGGONGRENYENEIDE“HEFEIYANGGUANG”NIBIANQIWEILI。SG500MXDECANSHURUXIATU:

SHOUXIAN,WEISHENMEZUIDASHURUDIANYABUSHI1200V,BUSHI1100V?YINWEISHICHANGSHANGZHULIUDEMUXIANZHICHENGDIANRONGZUIDANAIYADENGJISHI1100V,WOMENDEIBGTYIBANSHI1200V/1400A,ANZHAOMUTONGYUANLI,WOMENYAOANZHAODIANRONGDENAIYADENGJISHEJINIBIANQIDESHURUDIANYA,NEIMENIBIANQIDEZHILIUDIANYASHANGXIANSHI1000V(LIU100VDEYULIANG,KEYIYANZHANGDIANRONGDESHOUMING)。WOMENZUOZUJIANCHUANBINGLIANSHEJIDESHIHOU,BUYAOKEYIDEYONG1000VQUCHUYIZUJIANDEKAILUDIANYA,YONG900VHUOZHE950VJIUKEYILE。

大发体育QICI,WEISHENMEMPPTDIANYADESHANGXIANSHI850VXIAXIANSHI460V?SG500MXDESHUCHUJIAOLIUDIANYASHI315V,315SHIJIAOLIUDIANYADEPINGJUNZHI,PINGJUNZHIGENZUIDAZHIDEGUANXISHI1.41*315=445V。

WEISHENMESHANGXIANSHI850V,ZHEIGEWENTIJIUYOUYIDIANFUZALE。ZHEIQIANCHEDAONIBIANQIIGBTDESUNHAOWENTI。

IGBTDESUNHAOZHUYAOBAOKUOTONGTAISUNHAOHEKAIGUANSUNHAO。

TONGTAISUNHAOZHUYAOQUJUEYUIGBTDEDAOTONGBAOHEYAJIANGVce(sat),KAIGUANSUNHAOZHUYAOQUJUEYUKAITONGSHIJIANTonHEGUANDUANSHIJIANToff,BUTONGDEPINLVJIBUTONGDEDIANLUFANGSHI,ZHEILIANGZHONGSUNHAOSUOZHANDEZONGSUNHAODEBILISHIBUTONGDE。DANGGONGZUOPINLVJIAODISHI,TONGTAISUNHAOSHIZHUYAODE,JIANYIXUANQUDIBAOHEYAJIANGDEIGBT;DANGGONGZUOPINLVJIAOGAOSHI,KAIGUANSUNHAOSHIZHUYAODE,JIANYIXUANQUDUANTUOWEIDIANLIUDEKUAISUIGBT。

大发体育XUANYONGGENGDADIANLIUDEMOKUAIZEKEBAKAIGUANSUDUTIGAOBINGJIANXIAOKAIGUANSUNHAO。KAIGUANSUNHAOBAOKUOKAITONGSUNHAOHEGUANDUANSUNHAO,ZAICHUANLIANXIEZHENDIANLUZHONG,IGBTKAITONGSHIZUODAOLINGDIANYAKAITONGSHIJIAOYIZUODAODE,ZHEISHIDEKAITONGSUNHAOJIXIAO;IGBTGUANDUANSHIZUODAOJIEJINLINGDIANLIUGUANDUANSHIKEYIZUODAODE,ZHEISHIDEGUANDUANSUNHAOYEJIAOXIAO。ZHAJIDIANZURGJIANXIAOKESUODUANKAITONGSHIJIANTonHEGUANDUANSHIJIANToff,BINGJIANXIAOLEKAITONGSUNHAOHEGUANDUANSUNHAO,DANQUEZENGJIALELANGYONGDIANYAHEDIANCIGANRAO。

大发体育SUOYIDIANYAYUEGAOIGBTDEKAIGUANYINGLIYUEDA,KAIGUANSUNHAOBIANDEHENGAO。ZHEIJIUSHIWEISHENMEXIATUSUOSHI850VSHINIBIANQIDEXIAOLVZUIDI。

ZUCHUANNIBIANQIYEYIYANG,BINGBUSHIZUJIANCHUANLIANDESHULIANGYUEDUOYUEHAO,ERSHISHIZHONG。XIWANGGUANGFUSHEJISHIXUEHUIKANNIBIANQIDEXIAOLVQUXIANTU。BUYAOQUYANJIU24KUAIYICHUANHAO,HAISHI23KUAIYICHUANHAO。ERSHIKANZUIGAOHEZUIDIHUANJINGWENDUSHINEIZHONGPEIZHIXIAOLVGENGGAO,BURANJIUSHIQULEZUCHUANNIBIANQIDEYIYI。


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关键词:光伏发电厂家

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