如何为光伏逆变器系统选择高质量的电解电容
一颗小小的电容，却作用巨大，电容种类巨多，其主要功能是储能、滤波、去耦、旁路。现在的电子产品中用于储能滤波的电容多半都是电解电容。电解电容具有大容量、高耐压、价格低廉等显著优点，然其又有寿命短、怕高温的缺陷。因为电解电容的电解质为液态，芯子发热或环境温度较高将导致电解液挥发，长期高温会导致电解液干涸失效。
在光伏逆变器设计中，储能电容一般采用多颗电解电容进行并联，用于前期AC/DC整流滤波储能使用。影响逆变器寿命最主要的器件就是储能电容，一般的高压电解电容在105℃情况只能工作2000~3000小时，而逆变器放户外逆变器温度通常都有六七十度，一般对于电子产品寿命，温度每升高10℃，寿命减半。因此，如何选择高质量的电解电容是设计光伏逆变器的关键之一。
以一般逆变器中最常用的315V、1000uF和550V、390uF两种规格为例，笔者推荐NCC（俗称黑金刚）LXS系列电解电容，太阳能发电专用，保证105℃ 5000小时（叠加纹波电流）。即在105℃环境中，不超过额定电压的范围下叠加额定纹波电流，连续加载额定电压5,000小时后，待温度回复到20℃进行测量时。
总的来说，黑金刚LXS系列电解电容满足以下光伏逆变器设计要求：
1 静电容变化率≦初始值的±20%
2 损失角正切值≦初始规格值的200%（500Vdc：250%以下，550, 600Vdc：300%以下）
3 漏电流≦初始规格值
图1 LXS系列电解电容
可见NCC LXS系列的电解电容非常适合光伏系统中长寿命的要求，是光伏系统中储能电容选择的首选，在国内和国际市场上占有率一直位居前列。目前，世强已全面代理NCC的电解电容，如果你想了解更多的NCC产品信息或使用方法，请留言或电话联系世强400-887-3266。
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Nippon Chemi-Con（黑金刚）铝电解电容器选型指南（英文）
Since its establishment in 1931, Nippon Chemi-Con has tackled the development of a variety of electronic components, starting with aluminum electrolytic capacitors. As a supporter of this advanced electronic industry, Nippon Chemi-Con is very pleased to have contributed to its development.The spreading of globalization has brought about a new era to the electronics industry.
NIPPON CHEMI-CON - CONDUCTIVE POLYMER ALUMINUM SOLID CAPACITORS,导电高分子铝固体电容器,电容器,导电高分子杂化铝电解电容器,ALUMINUM ELECTROLYTIC CAPACITORS,CONDUCTIVE POLYMER HYBRID ALUMINUM ELECTROLYTIC CAPACITORS,铝电解电容器,CAPACITOR,ELXV500E□□221MJ25S,APXA6R3ARA101MF61G,APXD6R3ARA560ME61G,EKY-630E□□122ML40S,EMLA350ARA330MF80G,EKY-101E□□470MJC5S,EKXN401E□□151ML35S,EKZN6R3E□□272MK16S,EKXJ401E□□560MJ50S,EKYB160E□□562ML25S,EKXJ351E□□270MJ30S,EMVY100□RA472MLN0S,ELXY630E□□330MF15D,EKZH160E□□472ML25S,EMZA160□RA331MHA0G,ELXY160E□□821MJ25S,EGXF250E□□511MJC5S,ELBG250E □□ 352AK35S,ELXY350E□□272ML40S,EKZN100E□□222MJ25S,EGPA500E□□102MK35S,ELXV160E□□562ML40S,EMVL250ARA330MF60G,EKMQ101E□□2R2ME11D,APXJ2R5ARA122MH70G,EKYA100E□□122MH20D,EKWB451E□□820MM20S,ELBG250E □□ 922AMP1S,EKXJ251E□□330MJ20S,EKXL401E□□680MK35S,APSW250E□□471MHB5S,EKXN401E□□680MK30S,EMZA630□RA301MKG5S,EMVY6R3□RA682MLN0S,1,ELXZ630E□□331MJ30S,2,3,EKZN500E□□181MH20D,HHXJ250□RA681MJC5G,E MZE □□□ A RA □□□ M □□□ G,4,EKZE101E□□391MK40S,EGPA800E□□471MM20S,EMVH250□RA681MMH0S,ESRG350E□□471MK13S,EKMQ100E□□331MF11D,EMZA350□RA331MJA0G,6,EKYB6R3E□□682MK30S,EGXF500E□□241MJ16S,APSG200E□□331MH08S,EKYB250E□□151MF11D,EGXF250E□□751MJ16S,ELXZ250E□□821MJ25S,EKY-100E□□392ML20S,ELXV350E□□272MM35S,ELXV160E□□272MK35S,EKRG160E□□222ML15S,EMVY100□RA681MJA0G,EKXN451E□□820MK45S,EKY-160E□□682ML40S,ELZA250E□□272ML20S,EKHE451E□□101ML35S,EKZM350E□□222ML25S,ELXY500E□□331MJ30S,EGVD250E□□822MMP1H,EKZE100E□□222MK20S,APXE6R3ARA122MJA0G,EKYC350E□□512MM30S,EMVE100□RA222MKG5S,ELXZ6R3E□□682MM20S,EGPA500E□□122ML30S,EKZE500E□□331MJ25S,EKZN800E□□181MJ20S,EKY-350E□□222MLN3S,EKYB250E□□562MLP1S,EKYB800E□□122ML40S,EMLE6R3ARA101MF73G,EPAG401E□□101MU40S,ELXV500E□□561MK30S,EKZE630E□□182MM40S,EKWA421E□□560MJ50S,ELBG350E □□ 202AU25S,APXT100ARA121ME61G,EKXQ421E□□510ML20S,EGXF350E□□512MM35S,E KXL □□□ E □□ □□□ M □□□ S,EKY-800E□□121MJ20S,EKXL401E□□121MM30S,ELBG250E □□ 113AM40S,APXE4R0ARA561MH70G,EKYB100E□□123ML40S,EKXL421E□□680ML25S,520 EMHS250□RA332MLN0S,EGXF350E□□242MM20S,EMVL160ARA471MJA0G,EKRG160E□□332MM15S,ELXV800E□□102MM40S,EKZN630E□□182ML40S,APXH160ARA390MF61G,EKZH100E□□682ML25S,EKYB100E□□562MK35S,ELXZ630E□□101MJC5S,EKXJ421E□□560MK40S,EMLA250ARA100ME61G,APXJ2R5ARA821MF61G,EKHF451E□□101MK45S,EGPA500E□□821MU25S,EGPA800E□□681ML35S,HHXD630□RA220MF80G,EKY-350E□□122MK30S,E PAG □□□ E □□ □□□ M □□□ S,EPAG201E□□151MK30S,EKMQ100E□□472MK25S,EKZE250E□□331MJC5S,EMVJ500ARA3R3MD60G,EKZN800E□□471MK30S,ELXV500E□□180MEB5D,ELXV160E□□222MK30S,EKXJ221E□□121MU25S,ELXZ6R3E□□122MJ16S,EKMQ100E□□332MK20S,EMVE100□RA331MHA0G,ESRG500E□□102MM20S,EMLE350ARA221MJA0G,ELE-160E□□470ME11D,EKXN351E□□680MJ40S,ELXV100E□□331MH12D,ELXV500E□□181MJ20S,ELXV800E□□560MH20D,EKYA350E□□392MLP1S,EKXN421E□□560MM16S,EKZN350E□□182MK35S,EKXJ221E□□181MK40S,EKXJ421E□□330MK30S,EKZE800E□□331ML20S,EKY-160E□□103MM40S,ELE-250E□□101MF11D,ESMQ351VSN331MQ35S,NPCAP™-PSKSERIES,EMVH500□RA101MKE0S,EKYC250E□□561MJC5S,EKY-350E□□471MJ20S,EKZE6R3E□□561MHB5D,EKY-500E□□681MK30S,EGPA250E□□332MK40S,APXG250ARA100ME46G,EMZF250ARA331MJA0G,EKZE800E□□102ML40S,APSC100E□□391MHB5S,EKYC250E□□622MM25S,EKXJ221E□□331ML45S,ELXZ500E□□122ML30S,EKZN800E□□221MJ25S,EMHB630□TR331MKN0S,ELXZ350E□□271MH20D,HHXD630□RA330MJA0G,EKXN351E□□101MK40S,EMVY250□RA101MF80G,EKXJ421E□□820MMN3S,EMVL500ARA3R3MD60G,EKYC101E□□152MM40S,EKXL421E□□820MU35S,EKZM160E□□182MJ25S,EKXJ401E□□270MK20S,EKXN421E□□680ML20S,EKXN451E□□820MM20S,ELXV101E□□101MK20S,EKZE160E□□332MK35S,ELXZ100E□□471MH12D,EKXJ421E□□270MJ35S,EMZL500□RA221MJA0G,ELXV800E□□681ML40S,EGXF500E□□122MK35S,EMHL160□RA221MF80G,EKY-100E□□122MJ20S,ELXZ350E□□272MM30S,EGPA350E□□222MM25S,ELXV630E□□560MJC5S,EMZF100ARA330ME73G,ELXZ500E□□470MFB5D,EKWB401E□□680MK30S,ELE-101E□□220MHB5D,EGPD500E□□102ML20H,EMZE250ARA470MF73G,EMZE350ARA220MF73G,EKYC350E□□222ML20S,EKYB350E□□182MK30S,ELXZ250E□□331MH15D,LXVSERIES,EKZH160E□□332ML20S,EKYB100E□□222MJ25S,EKY-6R3E□□392MM15S,EKWB451E□□221MM45S,EKMQ201E□□331MM40S,GVDSERIES,EMLF350ARA1R0MD73G,EKZN800E□□271MJ25S,EKY-350E□□331MJ16S,ELXZ500E□□471MK20S,EKZN100E□□123MMP1S,EMVE250ARA220MF55G,SME,EKZM6R3E□□272MJ25S,EKYA250E□□471MJC5S,EKZN800E□□122ML40S,EKYC101E□□391MK30S,EKXJ251E□□470MJ25S,APSF6R3E□□821MF08S,SMH,ESMQ201VSN122MA30S,SMM,EKYC160E□□562MK30S,SMQ,EKLJ201E□□181MM25S,EKZH250E□□152MK20S,EKZE6R3E□□682ML25S,EKYA630E□□820MH15D,SMR,APXD2R5ARA221MF61G,APSG250E□□561MJB5S,EMLA350ARA221MJA0G,EGPD250E□□332ML20H,A PSE □□□ E □□ □□□ M □□□ S,EKZN250E□□681MJ16S,EMVY800□RA331MMH0S,EKY-630E□□681ML25S,EKZE630E□□820MH15D,EGXF350E□□332MM25S,APSG250E□□121MF08S,HHXC500□RA151MJC5G,EKXL451E□□390ML20S,EKHF421E□□221ML50S,HHXC630□RA820MJA0G,EKZE630E□□821MM25S,EGXF161E□□181MK35S,APXH2R5ARA221MF61G,EMVH500ARA100MF60G,PSC SERIES,ESMR401VSN221MP35S,EKXL451E□□820MM25S,EKHF451E□□101MM25S,EKLJ451E□□820ML40S,EMVY250ARA100ME55G,APXE4R0ARA471MH70G,AICHIP™-MHBSERIES,EKZH250E□□151MF11D,ELXZ160E□□272MK30S,EGXF630E□□681MU25S,AICHIP™-MZRSERIES,APXG160ARA271MH70G,EKMQ100E□□153MLP1S,APXH160ARA181MJ80G,HHXJ250□RA331MHA0G,APXH6R3ARA151MH70G,EMLE160ARA100MD73G,EMVJ250ARA330MF60G,EKZH6R3E□□682MK35S,ELXV800E□□271ML20S,APXG250ARA221MJA0G,EGPA800E□□561MM25S,EMHB250□RA821MKE0S,EKXL421E□□470MK30S,APSC2R5E□□152MHB5S,EKYA160E□□681MJC5S,APXK4R0ARA391MF61G,EMLA250ARA471MJA0G,EKMQ251E□□101ML25S,EMVH101□RA330MJA0G,ELBV350E□□103AM4,低姿态电源,ELECTRONICS,AUTOMOTIVE EQUIPMENT,UPS设备,LOW PROFILE POWER SUPPLY,CONTINUOUS OPERATION,COMPUTER MOTHERBOARDS,DC-DC CONVERTERS,计算机主板,长寿命产品,CONTINUOUSLY OPERATING EQUIPMENT,车载充电器,通信基础设施供电,伺服压力机,太阳能调节器,X-RAY,DC-DC转换器,POWER SUPPLY,X射线,焊机电源,连续运行,高频驱动功率转换系统,DECOUPLING APPLICATIONS,DOWNSIZED EQUIPMENT,SERVO PRESS MACHINES,HIGH FREQUENCY DRIVE POWER CONVERSION SYSTEM,去耦应用,数码产品,SOLAR POWER CONDITIONERS,UPS DEVICES,HIGH VOLTAGE INVERTER,WELDER POWER SUPPLY,ON-BOARD CHARGER,汽车设备,CAR AUDIO,高压变频器,VOLTAGE REGULATORS,LONG LIFE PRODUCTS,电压调节器,POWER SOURCE,电源,工业应用,连续运行设备,缩小设备,INDUSTRIAL APPLICATIONS,COMMUNICATION INFRASTRUCTURE POWER SUPPLY,动力源,汽车音响
KRB 系列大型铝电解电容器
该资料介绍了大型铝电解电容器KRB系列的产品特性、规格和应用领域。主要包括产品的工作温度范围、额定电压和静电容量、容许差、漏电流损失角正切值等性能指标，以及其在高频驱动电力转换系统中的应用。
NIPPON CHEMI-CON - 大型铝电解电容器,EKRB401VSN171MR46M,EKRB401VSN341MA59M,EKRB401VSN301MA54M,EKRB421VSN141MA35M,EKRB401VSN221MR54M,EKRB421VSN291MA59M,EKRB451VSN111MR41M,EKRB401VSN281MA51M,EKRB451VSN161MA41M,EKRB421VSN131MR41M,EKRB451VSN121MA35M,EKRB451VSN131MR46M,EKRB451VSN211MA51M,EKRB421VSN181MA41M,EKRB451VSN221MA54M,EKRB451VSN251MA59M,EKRB401VSN171MA35M,EKRB421VSN211MA46M,EKRB421VSN101MR35M,EKRB□□□VSN□□□M□□□M,EKRB451VSN900MR35M,EKRB451VSN161MR54M,EKRB401VSN121MR35M,EKRB421VSN171MR51M,EKRB421VSN261MA54M,EKRB451VSN151MR51M,EKRB401VSN201MR51M,EKRB421VSN181MR54M,EKRB421VSN201MR59M,KRB 系列,EKRB421VSN141MR46M,EKRB401VSN241MA46M,EKRB401VSN151MR41M,EKRB451VSN181MR59M,EKRB421VSN241MA51M,KRB,EKRB401VSN241MR59M,EKRB401VSN211MA41M,EKRB451VSN181MA46M,高频高纹波电流品,电力转换系统,光伏逆变器
国产电解电容 有哪些质量好的品牌？
国产较好的品牌有江海和风华，我司有代理Kendeil、exxelia、黑金刚品牌电解电容，可在世强元件电商搜索了解。
LRB 系列大型铝电解电容器
该资料介绍了LRB系列大型铝电解电容器，这是一种适用于高频高纹波电流的电子产品。它具有长寿命和高耐温特性，符合RoHS2标准。产品广泛应用于电力转换系统，如光伏逆变器等。
NIPPON CHEMI-CON - 大型铝电解电容器,LRB 系列,ELRB421VSN281MA59M,ELRB451VSN850MR35M,ELRB421VSN141MR46M,ELRB451VSN121MR46M,ELRB401VSN331MA59M,ELRB421VSN121MR41M,ELRB401VSN121MR35M,ELRB421VSN201MA46M,ELRB421VSN171MA41M,ELRB451VSN111MR41M,ELRB451VSN241MA59M,ELRB401VSN271MA51M,ELRB451VSN151MA41M,ELRB401VSN211MA41M,ELRB451VSN201MA51M,ELRB401VSN211MR54M,ELRB401VSN151MR41M,ELRB451VSN211MA54M,ELRB421VSN101MR35M,ELRB421VSN141MA35M,ELRB451VSN121MA35M,ELRB401VSN231MA46M,ELRB421VSN161MR51M,ELRB451VSN141MR51M,ELRB421VSN251MA54M,ELRB421VSN171MR54M,ELRB451VSN151MR54M,ELRB401VSN171MA35M,ELRB401VSN191MR51M,ELRB□□□VSN□□□M□□□M,ELRB451VSN171MR59M,ELRB401VSN231MR59M,ELRB401VSN171MR46M,ELRB421VSN191MR59M,ELRB451VSN171MA46M,ELRB421VSN231MA51M,LRB,ELRB401VSN291MA54M,高频高纹波电流品,电力转换系统,光伏逆变器
【产品】耐温达135℃混合电解电容，集铝电解电容和固态电容优点于一身
Nippon Chemi-Con（黑金刚）推出的HSE和HXE系列混合电解电容，工作电压：16-80V，工作温度可达135℃，HXE系列漏电流更是低于0.01CV，在135℃工作环境下最大额定纹波电流可达2.1A。
在光伏逆变器中，传统的方案母线电容使用电解电容作为滤波，目前准备更换为薄膜电容，请问容量和耐压怎么选择？
薄膜电容在电力电子系统中应用，耐压更高且高温性能更好，且承受母线纹波电压的能力比电解电容高。所以在选择薄膜电容的容量时可以减小容值，一般选取同功率电解电容容量的1/6左右，耐压选择比母线电压最高值稍高一些即可。
电子商城
品牌：Nippon Chemi-Con
品类：导电性高分子混合型铝电解电容器
价格：￥0.9971
现货： 19,500
品牌：Nippon Chemi-Con
品类：导电性高分子混合型铝电解电容器
价格：￥2.7793
现货： 15,900
现货市场
服务
可定制风扇尺寸范围：30mm~120mm；转速：2000~30000RPM；噪音≥17dB。最大风量范围：3.28~262.39CFM；最大风压范围：1.25~110.83mmH2O；
最小起订量： 1 提交需求>
可定制OGS一片式电容屏，G+G电容屏，G+F电容屏，G+F+F电容屏，尺寸范围：1”~21”，单层产品厚度：0.55mm~2mm，可按客户要求在产品上附加防反射，防指纹，多色丝印，钻孔磨边，2.5D导圆角等工艺。
最小起订量： 1000 提交需求>
授权代理品牌：集成电路
授权代理品牌：分立元件
授权代理品牌：接插件及结构件
授权代理品牌：部件、组件及配件
授权代理品牌：电源及模块
授权代理品牌：电子材料
授权代理品牌：仪器仪表及测试配组件
授权代理品牌：电工工具及材料
授权代理品牌：机械电子元件
授权代理品牌：加工与定制
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