三相PWM整流器闭环仿真，电压电流双闭环控制，输出直流电压做外环模型中包含主电路，坐标变，电压电流双环PI控制器，SVPWM控制，PWM发生器matlab simulink模型功率因数1，低TH
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三相PWM整流器闭环仿真，电压电流双闭环控制，输出直流电压做外环模型中包含主电路，坐标变，电压电流双环PI控制器，SVPWM控制，PWM发生器matlab simulink模型功率因数1，低THD仅1.2%模型输出电压750VDC升压拓扑输出电压600～1000可调输出功率调节输出电阻阻值计算功率三相六开关七段式SVPWM仿真，交-直-交变压变频器中的逆变器一般接成三相桥式电路，以便输出三相交流变频源，SVPWM控制是根据电机负载需要尽量圆形旋转磁场来控制电机旋转的要求通过合成电压空间矢量得到IGBT触发信号，它的直流电压的利用率比SPWM方式高15%模型中带有简单解释可对应lunwen查阅资料更容易理解~ <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/90239744/2/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/90239744/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">三相<span class="_ _0"> </span><span class="ff2">PWM<span class="_ _1"> </span></span>整流器闭环仿真技术详解</div><div class="t m0 x1 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0">一<span class="ff3">、</span>引言</div><div class="t m0 x1 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">在现代电力电子技术中<span class="ff4">，</span>三相<span class="_ _0"> </span><span class="ff2">PWM<span class="_ _1"> </span></span>整流器因其高功率因数<span class="ff3">、</span>低谐波失真<span class="ff2">(THD)</span>等特点<span class="ff4">，</span>在许多电力系</div><div class="t m0 x1 h2 y4 ff1 fs0 fc0 sc0 ls0 ws0">统中扮演着至关重要的角色<span class="ff3">。</span>本文将围绕三相<span class="_ _0"> </span><span class="ff2">PWM<span class="_ _1"> </span></span>整流器的闭环仿真<span class="ff4">，</span>电压电流双闭环控制等核心内</div><div class="t m0 x1 h2 y5 ff1 fs0 fc0 sc0 ls0 ws0">容展开讨论<span class="ff4">，</span>旨在为读者提供详尽的技术分析<span class="ff3">。</span></div><div class="t m0 x1 h2 y6 ff1 fs0 fc0 sc0 ls0 ws0">二<span class="ff3">、</span>三相<span class="_ _0"> </span><span class="ff2">PWM<span class="_ _1"> </span></span>整流器概述</div><div class="t m0 x1 h2 y7 ff1 fs0 fc0 sc0 ls0 ws0">三相<span class="_ _0"> </span><span class="ff2">PWM<span class="_ _1"> </span></span>整流器是一种能够将三相交流电整流为直流电的电力电子装置<span class="ff3">。</span>其核心结构包括主电路<span class="ff3">、</span>坐</div><div class="t m0 x1 h2 y8 ff1 fs0 fc0 sc0 ls0 ws0">标变换<span class="ff3">、</span>电压电流双环<span class="_ _0"> </span><span class="ff2">PI<span class="_ _1"> </span></span>控制器<span class="ff3">、<span class="ff2">SVPWM<span class="_ _1"> </span></span></span>控制以及<span class="_ _0"> </span><span class="ff2">PWM<span class="_ _1"> </span></span>发生器等部分<span class="ff3">。</span>这些部分协同工作<span class="ff4">，</span>共同实</div><div class="t m0 x1 h2 y9 ff1 fs0 fc0 sc0 ls0 ws0">现整流器的功能<span class="ff3">。</span></div><div class="t m0 x1 h2 ya ff1 fs0 fc0 sc0 ls0 ws0">三<span class="ff3">、</span>主电路模型</div><div class="t m0 x1 h2 yb ff1 fs0 fc0 sc0 ls0 ws0">主电路是三相<span class="_ _0"> </span><span class="ff2">PWM<span class="_ _1"> </span></span>整流器的核心组成部分<span class="ff3">。</span>它主要由六个开关管<span class="ff4">（</span>如<span class="_ _0"> </span><span class="ff2">IGBT<span class="ff4">）</span></span>构成的三相六开关桥式</div><div class="t m0 x1 h2 yc ff1 fs0 fc0 sc0 ls0 ws0">电路<span class="ff3">。</span>通过控制这六个开关管的通断<span class="ff4">，</span>可以实现交流电到直流电的转换<span class="ff3">。</span></div><div class="t m0 x1 h2 yd ff1 fs0 fc0 sc0 ls0 ws0">四<span class="ff3">、</span>坐标变换</div><div class="t m0 x1 h2 ye ff1 fs0 fc0 sc0 ls0 ws0">坐标变换在整流器的控制中起着至关重要的作用<span class="ff3">。</span>它能够将静止坐标系下的三相电流和电压转换到旋</div><div class="t m0 x1 h2 yf ff1 fs0 fc0 sc0 ls0 ws0">转坐标系下<span class="ff4">，</span>从而更方便地进行分析和控制<span class="ff3">。</span>通过坐标变换<span class="ff4">，</span>我们可以更好地理解电压电流的关系<span class="ff4">，</span></div><div class="t m0 x1 h2 y10 ff1 fs0 fc0 sc0 ls0 ws0">并对其进行有效的控制<span class="ff3">。</span></div><div class="t m0 x1 h2 y11 ff1 fs0 fc0 sc0 ls0 ws0">五<span class="ff3">、</span>电压电流双闭环控制</div><div class="t m0 x1 h2 y12 ff1 fs0 fc0 sc0 ls0 ws0">电压电流双闭环控制是三相<span class="_ _0"> </span><span class="ff2">PWM<span class="_ _1"> </span></span>整流器的重要控制策略<span class="ff3">。</span>外环为输出直流电压环<span class="ff4">，</span>内环为电流环<span class="ff3">。</span>通</div><div class="t m0 x1 h2 y13 ff1 fs0 fc0 sc0 ls0 ws0">过双闭环控制<span class="ff4">，</span>我们可以实现对整流器输出电压和电流的精确控制<span class="ff3">。</span>这种控制方式能够保证整流器在</div><div class="t m0 x1 h2 y14 ff1 fs0 fc0 sc0 ls0 ws0">各种工作条件下都能稳定运行<span class="ff4">，</span>并具有较高的动态响应性能<span class="ff3">。</span></div><div class="t m0 x1 h2 y15 ff1 fs0 fc0 sc0 ls0 ws0">六<span class="ff3">、<span class="ff2">SVPWM<span class="_ _1"> </span></span></span>控制与<span class="_ _0"> </span><span class="ff2">PWM<span class="_ _1"> </span></span>发生器</div><div class="t m0 x1 h2 y16 ff2 fs0 fc0 sc0 ls0 ws0">SVPWM<span class="ff4">（<span class="ff1">空间矢量脉宽调制</span>）<span class="ff1">是一种先进的控制方法</span>，<span class="ff1">它能够根据电机负载需要</span>，<span class="ff1">通过合成电压空间</span></span></div><div class="t m0 x1 h2 y17 ff1 fs0 fc0 sc0 ls0 ws0">矢量得到<span class="_ _0"> </span><span class="ff2">IGBT<span class="_ _1"> </span></span>触发信号<span class="ff4">，</span>从而控制电机旋转<span class="ff3">。</span>与传统的<span class="_ _0"> </span><span class="ff2">SPWM<span class="ff4">（</span></span>正弦脉宽调制<span class="ff4">）</span>相比<span class="ff4">，<span class="ff2">SVPWM<span class="_ _1"> </span></span></span>具有</div><div class="t m0 x1 h2 y18 ff1 fs0 fc0 sc0 ls0 ws0">更高的直流电压利用率<span class="ff4">，</span>能够更好地满足电机控制的需求<span class="ff3">。<span class="ff2">PWM<span class="_ _1"> </span></span></span>发生器则是根据<span class="_ _0"> </span><span class="ff2">SVPWM<span class="_ _1"> </span></span>的控制信号</div><div class="t m0 x1 h2 y19 ff4 fs0 fc0 sc0 ls0 ws0">，<span class="ff1">生成驱动<span class="_ _0"> </span><span class="ff2">IGBT<span class="_ _1"> </span></span>开关管的脉冲信号<span class="ff3">。</span></span></div><div class="t m0 x1 h2 y1a ff1 fs0 fc0 sc0 ls0 ws0">七<span class="ff3">、<span class="ff2">Matlab Simulink<span class="_ _1"> </span></span></span>模型应用</div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>