"混合型模块化多电平双端模型研究：电源负载下的N个半桥臂动态控制与电压均衡策略",混合型模块化多电平（MMC）双端模型 电源与负载单个半桥臂N=10直流侧母线电压为12000V双闭环控制 采
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"混合型模块化多电平双端模型研究：电源负载下的N个半桥臂动态控制与电压均衡策略",混合型模块化多电平（MMC）双端模型 电源与负载单个半桥臂N=10直流侧母线电压为12000V双闭环控制。采用子模块电容电压的闭环控制与电容均压控制方法，完成对电容电压均衡的控制目标。提供参考文献，仿真为物，，，Matlab为2021b。,混合型模块化多电平(MMC);双端模型;电源与负载;半桥臂N=10;直流侧母线电压12000V;双闭环控制;子模块电容电压的闭环控制;电容均压控制;参考文献;Matlab 2021b。,基于混合型MMC双端模型电源与负载的子模块电容电压均衡控制策略研究 <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/90341518/2/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/90341518/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">混合型模块化多电平<span class="ff2">（<span class="ff3">MMC</span>）</span>系统<span class="ff2">：</span>双端模型电源与负载的均衡控制策略</div><div class="t m0 x1 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0">一<span class="ff4">、</span>引言</div><div class="t m0 x1 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">混合型模块化多电平<span class="ff2">（<span class="ff3">MMC</span>）</span>系统是一种新型的电力电子变换器<span class="ff2">，</span>它由多个子模块串联而成<span class="ff2">，</span>可以处</div><div class="t m0 x1 h2 y4 ff1 fs0 fc0 sc0 ls0 ws0">理高电压<span class="ff4">、</span>大功率的电力电子变换任务<span class="ff4">。</span>在<span class="_ _0"> </span><span class="ff3">MMC<span class="_ _1"> </span></span>系统中<span class="ff2">，</span>电源与负载的均衡控制是保证系统稳定运行</div><div class="t m0 x1 h2 y5 ff1 fs0 fc0 sc0 ls0 ws0">的关键<span class="ff4">。</span>本文将围绕如何利用双端模型以及混合型<span class="_ _0"> </span><span class="ff3">MMC<span class="_ _1"> </span></span>的结构特性<span class="ff2">，</span>在单半桥臂数量<span class="_ _0"> </span><span class="ff3">N=10<span class="_ _1"> </span></span>的情况下</div><div class="t m0 x1 h2 y6 ff2 fs0 fc0 sc0 ls0 ws0">，<span class="ff1">结合<span class="_ _0"> </span><span class="ff3">12000V<span class="_ _1"> </span></span>直流侧母线电压以及双闭环控制方法</span>，<span class="ff1">进行电源与负载均衡控制的详细讨论<span class="ff4">。</span></span></div><div class="t m0 x1 h2 y7 ff1 fs0 fc0 sc0 ls0 ws0">二<span class="ff4">、</span>混合型<span class="_ _0"> </span><span class="ff3">MMC<span class="_ _1"> </span></span>的结构特性</div><div class="t m0 x1 h2 y8 ff1 fs0 fc0 sc0 ls0 ws0">混合型<span class="_ _0"> </span><span class="ff3">MMC<span class="_ _1"> </span></span>结构采用双端模型<span class="ff2">，</span>具有结构简单<span class="ff4">、</span>可扩展性强等特点<span class="ff4">。</span>其中<span class="ff2">，</span>单个半桥臂<span class="_ _0"> </span><span class="ff3">N=10<span class="_ _1"> </span></span>意味着</div><div class="t m0 x1 h2 y9 ff1 fs0 fc0 sc0 ls0 ws0">系统中有<span class="_ _0"> </span><span class="ff3">10<span class="_ _1"> </span></span>个子模块串联组成一个半桥臂<span class="ff4">。</span>每个子模块包含一个<span class="_ _0"> </span><span class="ff3">IGBT<span class="ff2">（</span></span>绝缘栅双极型晶体管<span class="ff2">）</span>和一</div><div class="t m0 x1 h2 ya ff1 fs0 fc0 sc0 ls0 ws0">个反并联二极管<span class="ff2">，</span>以及一个储能电容<span class="ff4">。</span>这种结构使得<span class="_ _0"> </span><span class="ff3">MMC<span class="_ _1"> </span></span>系统能够处理高电压<span class="ff4">、</span>大功率的电力电子变</div><div class="t m0 x1 h2 yb ff1 fs0 fc0 sc0 ls0 ws0">换任务<span class="ff4">。</span></div><div class="t m0 x1 h2 yc ff1 fs0 fc0 sc0 ls0 ws0">三<span class="ff4">、</span>电源与负载的均衡控制策略</div><div class="t m0 x1 h2 yd ff3 fs0 fc0 sc0 ls0 ws0">1.<span class="_ _2"> </span><span class="ff1">双闭环控制方法</span></div><div class="t m0 x1 h2 ye ff1 fs0 fc0 sc0 ls0 ws0">在<span class="_ _0"> </span><span class="ff3">MMC<span class="_ _1"> </span></span>系统中<span class="ff2">，</span>为了实现电源与负载的均衡控制<span class="ff2">，</span>需要采用双闭环控制方法<span class="ff4">。</span>其中<span class="ff2">，</span>外环负责控制系</div><div class="t m0 x1 h2 yf ff1 fs0 fc0 sc0 ls0 ws0">统的有功功率和无功功率<span class="ff2">，</span>内环则负责控制子模块电容电压和均压控制<span class="ff4">。</span>通过内外环的协同作用<span class="ff2">，</span>实</div><div class="t m0 x1 h2 y10 ff1 fs0 fc0 sc0 ls0 ws0">现对电源与负载的均衡控制<span class="ff4">。</span></div><div class="t m0 x1 h2 y11 ff3 fs0 fc0 sc0 ls0 ws0">2.<span class="_ _2"> </span><span class="ff1">子模块电容电压的闭环控制</span></div><div class="t m0 x1 h2 y12 ff1 fs0 fc0 sc0 ls0 ws0">子模块电容电压的闭环控制是内环控制的重要部分<span class="ff4">。</span>通过对每个子模块电容电压进行实时监测<span class="ff2">，</span>将其</div><div class="t m0 x1 h2 y13 ff1 fs0 fc0 sc0 ls0 ws0">与设定值进行比较<span class="ff2">，</span>根据差值对子模块的投入或切除进行控制<span class="ff2">，</span>从而实现对子模块电容电压的闭环控</div><div class="t m0 x1 h2 y14 ff1 fs0 fc0 sc0 ls0 ws0">制<span class="ff4">。</span></div><div class="t m0 x1 h2 y15 ff3 fs0 fc0 sc0 ls0 ws0">3.<span class="_ _2"> </span><span class="ff1">均压控制方法</span></div><div class="t m0 x1 h2 y16 ff1 fs0 fc0 sc0 ls0 ws0">为了实现电容电压均衡的控制目标<span class="ff2">，</span>需要采用均压控制方法<span class="ff4">。</span>通过实时监测各子模块电容电压的差异</div><div class="t m0 x1 h2 y17 ff2 fs0 fc0 sc0 ls0 ws0">，<span class="ff1">对各子模块进行适当的投入或切除控制</span>，<span class="ff1">使得各子模块电容电压达到均衡状态<span class="ff4">。</span>这种均压控制方法</span></div><div class="t m0 x1 h2 y18 ff1 fs0 fc0 sc0 ls0 ws0">可以有效避免因某个子模块电容电压过高或过低而导致的系统故障<span class="ff4">。</span></div><div class="t m0 x1 h2 y19 ff1 fs0 fc0 sc0 ls0 ws0">四<span class="ff4">、</span>仿真实验与结果分析</div><div class="t m0 x1 h2 y1a ff1 fs0 fc0 sc0 ls0 ws0">本文采用<span class="_ _0"> </span><span class="ff3">Matlab 2021b<span class="_ _1"> </span></span>软件进行仿真实验<span class="ff4">。</span>在仿真过程中<span class="ff2">，</span>我们设定了<span class="_ _0"> </span><span class="ff3">N=10<span class="_ _1"> </span></span>的单个半桥臂数量</div><div class="t m0 x1 h2 y1b ff1 fs0 fc0 sc0 ls0 ws0">和<span class="_ _0"> </span><span class="ff3">12000V<span class="_ _1"> </span></span>的直流侧母线电压<span class="ff4">。</span>通过对双闭环控制策略的实现<span class="ff2">，</span>我们可以观察到电源与负载之间的均</div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>