外文翻译光伏并网逆变器Word格式.docx

1、质量保证开关只执行斩波行动，而第一季度，第四季度交换机确定方向的输出电压根据极性的电力系统。因此，与一般全桥PWM逆变器执行完整的一块，该系统减少了开关损耗。图.2显示波形的传统电流源逆变器。它代表了波形的输出电压和电流，该电流通过电感，输入信号，每个开关。图.3显示了脉冲转变电流源逆变器电路，用于降低开关频率和提高效率。当太阳能电池模块输出电压的是高于或低于输出电压的转换器，则合成的电流源转换，这需要Buck-Boost变换器运作良好。电路降压频率的逆变器是固定的，在60HZ，这是电力系统频率。该过滤器（LS,CS）在输出端口的逆变器是一种低成本的能力，以改善波形的输出电流。如果过滤器的高容

2、量的使用，功率因数的系统将不统一，因为相位延迟。图.4显示波形是电流源逆变器。指标代表交换期间的升压斩波器，这个数字。国际法协会，ILF代表波形电感电流各自的转换和IDC代表输出电流的逆变器。作为一个脉冲波形，输出波形的六脉冲移转换代表6波形开关频率TS.We采用了数字信号处理器（TMS320F2812）产生的PWM6相移信号电流源逆变本文。由于采用非对称PWM模式，波形的输出电流，这几乎是逆变器的波形相似，六乘以开关频率但不完全相同的。图.5显示了各自的电感电流和输出电流的常规逆变器和逆变器相等的开关频率。原文：Grid-connectedphotovoltaicsystemusingcur

3、rent-sourceinverterRecently,therehasbeenagrowinginterestinalternativeenergysourcesbecausefossilfuelandatomicpowerplantsaffecttheenvironmentitsstability（NagaoHarada,1997;Myrzlk,2001）.Amongvarioussourceofenergy,solarstandsapartasitiscleanunlimitedmoreover,considerableamountresearchconductedrecentlythi

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8、achswitch.3proposedsix-pulse-shiftimproveWhenevermodulehigherconvertercompositingconverter,buck-boostoperatewell.buck-frequencyfixed60Hz,frequency.（LS,CS）portlowcapacitywaveformcurrent.Ifwerebeused,factorwouldunityphasedelay.4TSperiodchoppersfigure.ILAILFrepresentinductorcurrentsrespectiveconvertersIDCAsoperationalwaveform,sixTS.WeDSP（TMS320F2812）generatesix-phase-shiftsignalpaper.resultasymmetricPWMmode,almostsimilarmultipliedbutexactlysame.5equalfrequencies.