有关单项全桥逆变器主电路PSpice 仿真的问题。 我在用PSpice 仿真“50Hz 单项全桥逆变器的主电路”，已经产生了按照正弦波变化规律的PWM 信号，但是经滤波后的IGBT 输出是幅度非常小的正弦波，近似为 0。 请问，单项全桥逆变器的4 路驱动信号应该满足什么时序特征呢？ 问题描述如下：我依据资料上讲的波形比较法，用三角波和正弦波比较产生的按正弦规律变化的PWM 波形来驱动 IGBT V7300VdcV8FREQ = 50VAMPL = 15VOFF = 000D1MUR8100D3MUR81000D2MUR8100V9FREQ = 50VAMPL = -15VOFF = 0D4MUR8100R1100IGBT30R210IGBT2L215mH12V3TD = 0TF = 500uPW = 1nPER = 1000uV1 = 15TR = 500uV2 = -15C1580uFC2240uFL16mH120IGBT1R75001k1501k150Z1Z2Z3Z4C3470uFIGBT4 仿真电路图 1 Z1，Z4 SPWM Driver Signal Z2，Z3 SPWM Driver Signal 100V 直流输入时，IGBT 输出电压波形（没滤波） （方波为15V 的SPWM 驱动信号） 发现仿真结果不正确以后，我又用Matlab Simu link 来仿真，Matlab 提供了一个单项全桥IGBT Inv erter 的Demo。 其四路IGBT 驱动信号G1_2、G2_2、G3_2、G4_2 和 IGBT 输出电压如下： 其中上下两个桥臂的驱动信号互为相反。我再用“与”运算观察一个周期内的等效 PWM驱动信号，即将 G1_2 和 G4_2 与运算、G2_2 和 G3_2 与运算，结果如下： 由此，我得到结论。我用PSpice 仿真时获得的SPWM 波形与 Matlab IGBT Inv erter Demo的SPWM 等效波形是相同的。同时我在 Matlab 中修改 IGBT 的驱动信号，发现用上图的与运算后的SPWM 等效波形驱动IGBT 获得的结果也是错误的，IGBT 输出入下图所示。 由此，为了获得与 Matlab IGBT Inv erter Demo 中相等效的4 路 SPWM 驱动信号。我继续修改 PSpice 仿真中SPWM 驱动信号波形。 新的仿真电路图如下： TitleSizeDocument NumberRevDate:SheetofA11Monday, Nov ember 08, 2010IGBT2L215mH12C41uFC51uFC1580uFC2240uFL16mH120IGBT1R750KZ1Z2Z3Z4C3470uF0R14100R1510V+VVV-0R16100R17100V10FREQ = 50VAMPL = 15VOFF = 0000V11FREQ = 50VAMPL = -15VOFF = 00V6TD = 0TF = 1nPW = 10mPER = 20mV1 = 15TR = 1nV2 = 0V7TD = 0TF = 250uPW = 1nPER = 500uV1 = 0TR = 250uV2 = 201k1501k150V12TD = 0TF = 1nPW = 10mPER = 20mV1 = 0TR = 1nV2 = 150V8FREQ = 50VAMPL = 15VOFF = 0000V9FREQ = 50VAMPL = -15VOFF = 00V5TD = 0TF = 1nPW = 10mPER = 20mV1 = 15TR = 1nV2 = 0V3TD = 0TF = 250uPW = 1nPER = 500uV1 = 0TR = 250uV2 = 201k1501k150V4TD = 0TF = 1nPW = 10mPER = 20mV1 = 0TR = 1nV2 = 15V13200VdcD1MUR8100D3MUR8100D2MUR8100D4MUR8100 Z1、Z2、Z3、Z4 PWM 驱动信号如下：Z1 与Z2 互补，Z3 与Z4 互补，Z3、Z4 分别比Z1、Z2 延迟60°。 输出波形 滤波后的输出 麻烦了解IGBT Inv erter 的大神帮忙看看，我的SPWM 驱动信号应该怎么调整。不胜感激。</div></div><div class="pre-detail-bottom"><a class="pre-detail-more" href="javascript:;" kes-height="0">查看更多 <i class="icon-lower"></i></a></div></div></div><div class="noticeidtxt"><p>1、当您付费下载文档后，您只拥有了使用权限，并不意味着购买了版权，文档只能用于自身使用，不得用于其他商业用途（如 [转卖]进行直接盈利或[编辑后售卖]进行间接盈利）。<br>2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。<br>3、如文档内容存在违规，或者侵犯商业秘密、侵犯著作权等，请点击“违规举报”。</p></div><div class="noticeidtxt"><p>碎片内容</p></div></div><div class="view-hd"><div class="container"><div class="view-hd-bd"><div class="format"><i class="file-icon icon-pdf"></i></div><h2>IGBT输出</h2><ul class="operate"><li><a class=" view-down-btn" href="javascript:;" onclick="down.init()" title="下载IGBT输出"><i class="iconfont icon-xiazai"></i><span>下载文档</span></a></li><li><a id="close-preview" class="btn btn-close" href="javascript:;" title="关闭预览"><i class="iconfont iconclose"></i><span>关闭预览</span></a></li></ul></div></div></div><script>var _preview_param = {
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