国外电子测量技术
國外電子測量技術
국외전자측량기술
FOREIGN ELECTRONIC MEASUREMENT TECHNOLOGY
2015年
6期
45-49,57
,共6页
太阳能电池%光伏并网%单向控制%辅助供电%逆变
太暘能電池%光伏併網%單嚮控製%輔助供電%逆變
태양능전지%광복병망%단향공제%보조공전%역변
solar cells%photovoltaic grid%unidirectional control circuit%assistant power supply%inverter
以太阳能电池作为辅助电源，实现了与市电共同负载用电设备无蓄电不入网的直接供电方案。将太阳能电池组光伏输出经DC／DC变换器升压后的输出与用电设备的整流桥输出连接，并跟踪市电电压变化使之在相同的光伏条件下维持一定的输出功率；另外也设计了DC／DC／AC变换器电路逆变成与市电同频同相的交流输出，通过单向控制电路与市电隔离，使电源变换电路的输出只加载到用电设备中而不逆流进入到电力网，从而避免高昂的蓄电成本，或并网的输送、占地、维护等成本和入网的技术限制。
以太暘能電池作為輔助電源，實現瞭與市電共同負載用電設備無蓄電不入網的直接供電方案。將太暘能電池組光伏輸齣經DC／DC變換器升壓後的輸齣與用電設備的整流橋輸齣連接，併跟蹤市電電壓變化使之在相同的光伏條件下維持一定的輸齣功率；另外也設計瞭DC／DC／AC變換器電路逆變成與市電同頻同相的交流輸齣，通過單嚮控製電路與市電隔離，使電源變換電路的輸齣隻加載到用電設備中而不逆流進入到電力網，從而避免高昂的蓄電成本，或併網的輸送、佔地、維護等成本和入網的技術限製。
이태양능전지작위보조전원，실현료여시전공동부재용전설비무축전불입망적직접공전방안。장태양능전지조광복수출경DC／DC변환기승압후적수출여용전설비적정류교수출련접，병근종시전전압변화사지재상동적광복조건하유지일정적수출공솔；령외야설계료DC／DC／AC변환기전로역변성여시전동빈동상적교류수출，통과단향공제전로여시전격리，사전원변환전로적수출지가재도용전설비중이불역류진입도전력망，종이피면고앙적축전성본，혹병망적수송、점지、유호등성본화입망적기술한제。
By using the solar cell as an assistant power source ,the direct power supply to the electric equipments loaded together by the AC power is achieved without storing battery and input into the power grid .After DC/DC boost ,the photovoltaic output from the solar cells is connected with the output ends of the rectifier bridge ,while tracking the AC power variation to maintain a definite output power under a certain photovoltaic condition .Moreover ,a DC‐DC‐AC inverter is designed to acquire the AC output consistent with AC power in frequency and phase .It output is connected to the electric equipment but separated from the AC power grid by the unidirectional controlling circuit to only load the equipment without inversely flow into the power grid .Thus the high cost of electricity storage ,or power transportation , land occupying ,maintenance as well as technical limitations of grid connection .
