如何为光伏逆变器系统选择高质量的电解电容

2018-06-06 世强
电解电容,储能电容,黑金刚电解电容,LXS 电解电容,储能电容,黑金刚电解电容,LXS 电解电容,储能电容,黑金刚电解电容,LXS 电解电容,储能电容,黑金刚电解电容,LXS

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。


授权代理商:世强先进(深圳)科技股份有限公司
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  • YoungKing Lv7. 资深专家 2018-06-22
    学习了
  • 大虾 Lv6. 高级专家 2018-06-06
    资料不错,学习了
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描述- NIPPON CHEMI-CON (贵弥功株式会社公司, 或称:CHEMI-CON、NCC、贵弥功,俗称黑金刚)创立于1931年,总部位于日本,是铝电解电容器的顶级制造商,全球市场占有率位列首位,同时,在铝电极箔的生产方面,其产量也位居世界第一。

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

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KRB系列基板自立型·高纹波品 (105℃)大型铝电解电容器

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黑金刚铝电解电容选型表

提供黑金刚(Nippon Chemi-Con)铝电解电容产品选型。安装方式分为贴片型(SMD),引线型(Radial lead),基板自立型(牛角电容);常规品范围在-55℃~105℃,1000小时~20000小时寿命保证,额定电压范围在4V~600V;尺寸范围最小规格:贴片型电容4mm*5.2mm,容量范围从1uF~120000uF。

产品型号
品类
系列
直径(mm)
长度(mm)
引脚类型
电压(V)
容值(uF)
电容容差
最小工作温度(℃)
最大工作温度(℃)
MOQ/SPQ(pcs)
EKHE401VSN241MQ25Z
牛角型铝电解电容器
KHE Series
25.4mm
25mm
Snap-in
400V
240uF
±20%(M)
-40℃
105℃
200

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描述- 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.

型号- 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

选型指南  -  NIPPON CHEMI-CON  - 24.04 PDF 英文 下载

黑金刚铝电解电容&超级电容选型表

提供黑金刚(Nippon Chemi-Con)铝电解电容以及超级电容产品选型。安装方式分为贴片型(SMD),引线型(Radial lead),基板自立型(牛角电容),螺丝端子型(Screw);常规品范围在-40℃~150℃,1000小时~20000小时寿命保证,额定电压范围在2.5V~700V;尺寸范围最小规格:贴片型电容5mm*5.2mm,容量范围从1uF~3150000000uF。

产品型号
品类
系列
直径(mm)
长度(mm)
引脚类型
电压(V)
容值(uF)
电容容差
最小工作温度(℃)
最大工作温度(℃)
MOQ/SPQ(pcs)
EGVD250ELL622MM30H
高温品引线型铝电解电容器
GVD Series
18mm
30mm
Radial lead
25V
6200uF
±20%(M)
-40℃
135℃
200

选型表  -  Nippon Chemi-Con 立即选型

黑金刚径向引线薄型铝电解电容器系列产品,最高工作温度可达105℃、最低高度5mm

NIPPON CHEMI-CON黑金刚是铝电解电容器的顶级制造商,电解电容产量位居世界第一,SRM、KRE、SRG、KMA、KRG五个系列电容器产品即属于黑金刚推出的径向引线型铝电解电容器中的薄型铝电解电容器。该类铝电解电容器具有尺寸小、工作温度范围宽、符合RoHS2等特点,常用于电源电路或中频、低频电路中,能起到电源滤波,退耦、信号耦合及时间常数设定、隔直流等作用。

新产品    发布时间 : 2018-08-05

KRB 系列大型铝电解电容器

型号- 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

数据手册  -  NIPPON CHEMI-CON  - 2024/4/3 PDF 中文 下载

黑金刚固态铝电解电容电容选型表

提供黑金刚(Nippon chemi-con)固态铝电解电容产品选型。安装方式分为贴片型(SMD),引线型(Radial lead ),常规品范围在-55℃~125℃,1000小时- 20000小时寿命保证,额定电压范围:2V~35V,尺寸范围最小规格贴片型电容5mm*3mm,容量范围从10uF~2700uF。

产品型号
品类
系列
直径(mm)
长度(mm)
引脚类型
电压(V)
容值(uF)
电容容差
最小工作温度(℃)
最大工作温度(℃)
MOQ/SPQ(pcs)
APXN2R5ARA331ME61G
导电性高分子固态贴片型铝电解电容器
PXN Series
5mm
5.8mm
Chip
2.5V
330uF
±20%(M)
-55℃
105℃
1000

选型表  -  Nippon Chemi-Con 立即选型

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。

技术问答    发布时间 : 2016-10-25

LRB 系列大型铝电解电容器

型号- 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

数据手册  -  NIPPON CHEMI-CON  - 2024/4/3 PDF 中文 下载

【经验】一篇文章告诉你电解电容ESR对电容吸收效果的影响

ESR越小的电容,电容吸收效果越好。NIPPON CHEMI-CON(黑金刚)生产的混合电解电容和高分子固态电解电容都有标示出ESR值,甚至低ESR铝电解电容也有把ESR给标示出来,让工程师在选择电解电容时更加明朗。

设计经验    发布时间 : 2018-05-10

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高频变压器定制

可定制平板变压器、主变压器的开关频率2MHz以内、输入电压1400V以内、输出电压1400V以内,50%以上的产品采用自动化生产,最快3天提供样品、7天交货。

最小起订量: 3000 提交需求>

直流无刷风扇定制

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;

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授权代理品牌:加工与定制

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