光伏MMC并网系统（两级式）交流故障穿越电网对称 不对称故障simulink仿真模型光伏经模块化多电平换流器（MMC）并
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光伏MMC并网系统（两级式）交流故障穿越电网对称 不对称故障simulink仿真模型光伏经模块化多电平换流器（MMC）并网1. MMC部分：正负序分离控制+SOGI锁相环+定直流母线电压控制+定无功功率控制+二倍频环流抑制+子模块电容电压均衡控制MMC单个桥臂4个子模块（5电平），采用载波移相调制2. 光伏部分：Boost+扰动观察法最大功率跟踪；直流电压700V，功率等级50KW（附参考文献和pi控制器参数计算，内容详实） <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/89738421/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/89738421/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">光伏<span class="_ _0"> </span><span class="ff2">MMC<span class="_ _1"> </span></span>并网系统<span class="ff3">（</span>两级式<span class="ff3">）</span></div><div class="t m0 x1 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0">随着可再生能源的普及和应用<span class="ff3">，</span>光伏并网系统因其对环境友好<span class="ff4">、</span>可靠性高等优势<span class="ff3">，</span>已成为现代电力系</div><div class="t m0 x1 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">统中不可或缺的一部分<span class="ff4">。</span>而光伏<span class="_ _0"> </span><span class="ff2">MMC<span class="_ _1"> </span></span>并网系统作为其中一种常用的光伏变换器<span class="ff3">，</span>其技术特点和应用前</div><div class="t m0 x1 h2 y4 ff1 fs0 fc0 sc0 ls0 ws0">景备受瞩目<span class="ff4">。</span></div><div class="t m0 x1 h2 y5 ff1 fs0 fc0 sc0 ls0 ws0">光伏<span class="_ _0"> </span><span class="ff2">MMC<span class="_ _1"> </span></span>并网系统采用两级式结构<span class="ff3">，</span>包括<span class="_ _0"> </span><span class="ff2">MMC<span class="_ _1"> </span></span>部分和光伏部分<span class="ff4">。</span>在<span class="_ _0"> </span><span class="ff2">MMC<span class="_ _1"> </span></span>部分<span class="ff3">，</span>采用正负序分离控制</div><div class="t m0 x1 h2 y6 ff1 fs0 fc0 sc0 ls0 ws0">和<span class="_ _0"> </span><span class="ff2">SOGI<span class="_ _1"> </span></span>锁相环以实现高精度的控制策略<span class="ff4">。</span>此外<span class="ff3">，</span>还应用了定直流母线电压控制<span class="ff4">、</span>定无功功率控制<span class="ff4">、</span></div><div class="t m0 x1 h2 y7 ff1 fs0 fc0 sc0 ls0 ws0">二倍频环流抑制和子模块电容电压均衡控制等多种控制方法<span class="ff4">。<span class="ff2">MMC<span class="_ _1"> </span></span></span>单个桥臂由<span class="_ _0"> </span><span class="ff2">4<span class="_ _1"> </span></span>个子模块组成<span class="ff3">，</span>每个</div><div class="t m0 x1 h2 y8 ff1 fs0 fc0 sc0 ls0 ws0">子模块有<span class="_ _0"> </span><span class="ff2">5<span class="_ _1"> </span></span>个电平<span class="ff3">，</span>采用载波移相调制方式<span class="ff3">，</span>以提高系统性能和可靠性<span class="ff4">。</span></div><div class="t m0 x1 h2 y9 ff1 fs0 fc0 sc0 ls0 ws0">在光伏部分<span class="ff3">，</span>采用了<span class="_ _0"> </span><span class="ff2">Boost<span class="_ _1"> </span></span>电路和扰动观察法最大功率跟踪技术<span class="ff4">。<span class="ff2">Boost<span class="_ _1"> </span></span></span>电路可以将光伏电压提升</div><div class="t m0 x1 h2 ya ff1 fs0 fc0 sc0 ls0 ws0">至直流电压<span class="_ _0"> </span><span class="ff2">700V<span class="ff3">，</span></span>并实现功率等级为<span class="_ _0"> </span><span class="ff2">50KW<span class="_ _1"> </span></span>的输出<span class="ff4">。</span>扰动观察法最大功率跟踪技术通过对光伏阵列</div><div class="t m0 x1 h2 yb ff1 fs0 fc0 sc0 ls0 ws0">的电流和电压进行实时监测和调节<span class="ff3">，</span>以追踪光伏阵列的最大功率输出<span class="ff4">。</span>此外<span class="ff3">，</span>论文还提供了关于<span class="_ _0"> </span><span class="ff2">pi</span></div><div class="t m0 x1 h2 yc ff1 fs0 fc0 sc0 ls0 ws0">控制器参数计算的详细内容<span class="ff3">，</span>以指导实际系统的设计和调试过程<span class="ff4">。</span></div><div class="t m0 x1 h2 yd ff1 fs0 fc0 sc0 ls0 ws0">为了验证光伏<span class="_ _0"> </span><span class="ff2">MMC<span class="_ _1"> </span></span>并网系统的性能<span class="ff3">，</span>在<span class="_ _0"> </span><span class="ff2">simulink<span class="_ _1"> </span></span>仿真平台上建立了相应的仿真模型<span class="ff4">。</span>通过仿真模</div><div class="t m0 x1 h2 ye ff1 fs0 fc0 sc0 ls0 ws0">型<span class="ff3">，</span>可以对系统进行各种运行条件和故障情况的测试<span class="ff3">，</span>以评估系统的可靠性和稳定性<span class="ff4">。</span></div><div class="t m0 x1 h2 yf ff1 fs0 fc0 sc0 ls0 ws0">综上所述<span class="ff3">，</span>光伏<span class="_ _0"> </span><span class="ff2">MMC<span class="_ _1"> </span></span>并网系统以其两级式结构<span class="ff4">、</span>先进的控制策略和高效的功率跟踪技术<span class="ff3">，</span>在光伏发电</div><div class="t m0 x1 h2 y10 ff1 fs0 fc0 sc0 ls0 ws0">领域具有广泛的应用前景<span class="ff4">。</span>论文提供了详细的技术分析和设计计算<span class="ff3">，</span>可为同行提供有关光伏<span class="_ _0"> </span><span class="ff2">MMC<span class="_ _1"> </span></span>并网</div><div class="t m0 x1 h2 y11 ff1 fs0 fc0 sc0 ls0 ws0">系统的参考和借鉴<span class="ff4">。</span></div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>