开环模块化多电平换流器仿真研究：N=6电平的相电压波形与线路阻抗考量，半桥子模块参数设定及上下桥臂电流特性分析,基于N＝6开环模块化多电平换流器仿真：探究载波移相调制下的输出波形与子模块半桥结构,开环
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开环模块化多电平换流器仿真研究：N=6电平的相电压波形与线路阻抗考量，半桥子模块参数设定及上下桥臂电流特性分析,基于N＝6开环模块化多电平换流器仿真：探究载波移相调制下的输出波形与子模块半桥结构,开环模块化多电平流器仿真（MMC）N＝6，连接负载，采用载波移相调制。可以得到流器输出N＋1＝7电平的相电压波形。可考虑线路阻抗。子模块采用半桥结构，旁路电容等参数已设定。任一时刻上下桥臂保持m＋n＝N,开环模块化; 多电平换流器; 仿真; N电平相电压波形; 载波移相调制; 线路阻抗; 半桥结构子模块; 旁路电容参数; 桥臂比例。,基于半桥结构的开环模块化多电平换流器仿真：N=6下的7电平相电压输出与线路阻抗分析 <link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/base.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/fancy.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/90426220/2/raw.css" rel="stylesheet"/><div id="sidebar" style="display: none"><div id="outline"></div></div><div class="pf w0 h0" data-page-no="1" id="pf1"><div class="pc pc1 w0 h0"><img alt="" class="bi x0 y0 w1 h1" src="/image.php?url=https://csdnimg.cn/release/download_crawler_static/90426220/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">探索开环模块化多电平换流器（<span class="ff2">MMC</span>）的仿真与性能分析</div><div class="t m0 x1 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0">一、引言</div><div class="t m0 x1 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">在电力电子<span class="_ _0"></span>学领域，开<span class="_ _0"></span>环模块化多<span class="_ _0"></span>电平换流器<span class="_ _0"></span>（<span class="ff2">MMC</span>）以其<span class="_ _0"></span>高电压等级<span class="_ _0"></span>、低谐波失<span class="_ _0"></span>真和模</div><div class="t m0 x1 h2 y4 ff1 fs0 fc0 sc0 ls0 ws0">块化设计等优点，<span class="_ _1"></span>被广泛应用于高压直流输电<span class="_ _1"></span>（<span class="ff2">HVDC</span>）<span class="_ _1"></span>系统。<span class="_ _1"></span>本文将探讨使用<span class="_ _2"> </span><span class="ff2">N=6<span class="_ _2"> </span></span>的<span class="_ _2"> </span><span class="ff2">MMC</span></div><div class="t m0 x1 h2 y5 ff1 fs0 fc0 sc0 ls0 ws0">换流器进行仿真，<span class="_ _3"></span>连接负载并采用载波移相调制，<span class="_ _3"></span>以期得到换流器输出<span class="_ _2"> </span><span class="ff2">N+1=7<span class="_ _2"> </span></span>电平的相电</div><div class="t m0 x1 h2 y6 ff1 fs0 fc0 sc0 ls0 ws0">压波形，并考虑线路阻抗的影响。</div><div class="t m0 x1 h2 y7 ff1 fs0 fc0 sc0 ls0 ws0">二、<span class="ff2">MMC<span class="_"> </span></span>换流器结构与工作原理</div><div class="t m0 x1 h2 y8 ff2 fs0 fc0 sc0 ls0 ws0">MMC<span class="_"> </span><span class="ff1">换流器采用模块化设计，<span class="_ _3"></span>每个子模块通常采用半桥结构。<span class="_ _3"></span>每个半桥子模块包括一个旁</span></div><div class="t m0 x1 h2 y9 ff1 fs0 fc0 sc0 ls0 ws0">路电容和一个<span class="_ _2"> </span><span class="ff2">IGBT<span class="_ _2"> </span></span>开关。<span class="_ _4"></span>通过控制<span class="_ _2"> </span><span class="ff2">IGBT<span class="_ _2"> </span></span>开关的通断，<span class="_ _4"></span>可以实现子模块的投入和切除，<span class="_ _4"></span>从而</div><div class="t m0 x1 h2 ya ff1 fs0 fc0 sc0 ls0 ws0">调节输出电压。当<span class="_ _2"> </span><span class="ff2">N<span class="_ _2"> </span></span>个这样的子模块级联起来，就可以形成<span class="_ _2"> </span><span class="ff2">N+1<span class="_ _2"> </span></span>电平的输出波形。</div><div class="t m0 x1 h2 yb ff1 fs0 fc0 sc0 ls0 ws0">三、仿真设置与参数选择</div><div class="t m0 x1 h2 yc ff1 fs0 fc0 sc0 ls0 ws0">本次仿真中，<span class="_ _5"></span><span class="ff2">N=6<span class="ff1">，<span class="_ _5"></span>即采用六个半桥子模块组成一个<span class="_ _2"> </span><span class="ff2">MMC<span class="_"> </span></span>换流器。<span class="_ _5"></span>子模块的旁路电容等参</span></span></div><div class="t m0 x1 h2 yd ff1 fs0 fc0 sc0 ls0 ws0">数已设定<span class="_ _0"></span>。在任一时<span class="_ _0"></span>刻，上下桥<span class="_ _0"></span>臂保持<span class="_ _2"> </span><span class="ff2">m+n=N<span class="_"> </span></span>的关系，<span class="_ _0"></span>其中<span class="_ _2"> </span><span class="ff2">m<span class="_"> </span></span>和<span class="_ _2"> </span><span class="ff2">n<span class="_"> </span></span>分别代表上下桥臂<span class="_ _0"></span>投</div><div class="t m0 x1 h2 ye ff1 fs0 fc0 sc0 ls0 ws0">入的子模块数量。<span class="_ _3"></span>采用载波移相调制（<span class="ff2">CPS-SPWM</span>）<span class="_ _3"></span>技术，<span class="_ _3"></span>以获得换流器输出<span class="_ _2"> </span><span class="ff2">N+1=7<span class="_ _2"> </span></span>电平</div><div class="t m0 x1 h2 yf ff1 fs0 fc0 sc0 ls0 ws0">的相电压波形。此外，为了更接近实际情况，我们还考虑了线路阻抗的影响。</div><div class="t m0 x1 h2 y10 ff1 fs0 fc0 sc0 ls0 ws0">四、仿真结果与分析</div><div class="t m0 x1 h2 y11 ff2 fs0 fc0 sc0 ls0 ws0">1. <span class="_ _6"> </span><span class="ff1">相电压波形：通过仿真，我们得到了换流器输出的相电压波形。由于采用了<span class="_ _2"> </span></span>CPS-SPWM</div><div class="t m0 x1 h2 y12 ff1 fs0 fc0 sc0 ls0 ws0">技术，相电压呈现出<span class="_ _2"> </span><span class="ff2">N+1=7<span class="_ _6"> </span></span>电平的阶梯波形状，谐波失真较小，符合预期。</div><div class="t m0 x1 h2 y13 ff2 fs0 fc0 sc0 ls0 ws0">2. <span class="_ _6"> </span><span class="ff1">线路<span class="_ _0"></span>阻抗影响<span class="_ _0"></span>：在考<span class="_ _0"></span>虑线路阻<span class="_ _0"></span>抗的情<span class="_ _0"></span>况下，<span class="_ _0"></span>换流器的<span class="_ _0"></span>输出电<span class="_ _0"></span>压会发<span class="_ _0"></span>生一定的<span class="_ _0"></span>衰减和<span class="_ _0"></span>相位</span></div><div class="t m0 x1 h2 y14 ff1 fs0 fc0 sc0 ls0 ws0">偏移。这需要在设计和控制中予以考虑，以保证系统的稳定性和性能。</div><div class="t m0 x1 h2 y15 ff2 fs0 fc0 sc0 ls0 ws0">3. <span class="_ _6"> </span><span class="ff1">效率<span class="_ _0"></span>与损耗：<span class="_ _0"></span>在仿真<span class="_ _0"></span>过程中，<span class="_ _0"></span>我们还<span class="_ _0"></span>对换流<span class="_ _0"></span>器的效率<span class="_ _0"></span>与损耗<span class="_ _0"></span>进行了<span class="_ _0"></span>分析。由<span class="_ _0"></span>于采用<span class="_ _0"></span>了模</span></div><div class="t m0 x1 h2 y16 ff1 fs0 fc0 sc0 ls0 ws0">块化设计和半桥子模块结构，<span class="ff2">MMC<span class="_"> </span></span>换流器具有较高的效率和较低的损耗。</div><div class="t m0 x1 h2 y17 ff1 fs0 fc0 sc0 ls0 ws0">五、结论</div><div class="t m0 x1 h2 y18 ff1 fs0 fc0 sc0 ls0 ws0">通过仿真，<span class="_ _1"></span>我们得到了采用<span class="_ _2"> </span><span class="ff2">N=6<span class="_"> </span></span>的<span class="_ _6"> </span><span class="ff2">MMC<span class="_"> </span></span>换流器连接负载并采用<span class="_ _6"> </span><span class="ff2">CPS-SPWM<span class="_"> </span></span>调制的相电压</div><div class="t m0 x1 h2 y19 ff1 fs0 fc0 sc0 ls0 ws0">波形。该波形呈现出<span class="_ _6"> </span><span class="ff2">N+1=7<span class="_"> </span></span>电平的阶梯波形状，<span class="_ _3"></span>具有较低的谐波失真。同时，<span class="_ _3"></span>我们还考虑</div><div class="t m0 x1 h2 y1a ff1 fs0 fc0 sc0 ls0 ws0">了线路阻抗的影响，<span class="_ _4"></span>并分析了换流器的效率与损耗。<span class="_ _4"></span>这些结果为<span class="_ _2"> </span><span class="ff2">MMC<span class="_"> </span></span>换流器的设计和应用</div><div class="t m0 x1 h2 y1b ff1 fs0 fc0 sc0 ls0 ws0">提供了有益的参考。<span class="_ _4"></span>未来工作可以进一步优化参数设置和控制策略，<span class="_ _4"></span>以提高<span class="_ _2"> </span><span class="ff2">MMC<span class="_"> </span></span>换流器的</div><div class="t m0 x1 h2 y1c ff1 fs0 fc0 sc0 ls0 ws0">性能和可靠性。电梯仿真模拟控制系统设计</div><div class="t m0 x1 h2 y1d ff1 fs0 fc0 sc0 ls0 ws0">一、概述</div><div class="t m0 x1 h2 y1e ff1 fs0 fc0 sc0 ls0 ws0">电梯是现代建筑中的重要组成部分，<span class="_ _7"></span>保障其运行安全及可靠性显得至关重要。<span class="_ _7"></span>为满足现实生</div><div class="t m0 x1 h2 y1f ff1 fs0 fc0 sc0 ls0 ws0">活中的使用需求及训练操作人员的操作能力，<span class="_ _8"></span>采用电梯仿真模拟技术成为了有效的解决方案。</div><div class="t m0 x1 h2 y20 ff1 fs0 fc0 sc0 ls0 ws0">本文将详细<span class="_ _0"></span>介绍基于<span class="_ _0"></span>西门子博图<span class="_ _9"> </span><span class="ff2">S7-1200 PLC<span class="_"> </span></span>与触摸屏<span class="_ _2"> </span><span class="ff2">HMI<span class="_"> </span></span>的电梯模拟仿<span class="_ _0"></span>真控制系统<span class="_ _0"></span>的设</div></div><div class="pi" data-data='{"ctm":[1.611830,0.000000,0.000000,1.611830,0.000000,0.000000]}'></div></div>