(6.5.1)--10-4单相全桥电压型逆变电路.pdf

单相全桥电压型逆变电路单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source Inverter单相全桥逆变电路电路结构01单相全桥逆变电路控制方式02单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source Inverter直流电源负载右半桥左半桥单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source Inverter控制方式180方波控制成对桥臂同时导通，交替各导通180单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source Inverter单相全桥逆变电路单相半桥逆变电路单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source Inverter1输出电压输出电压波形相同，也是矩形波。幅值Um=Ud，比半桥时高一倍。OuoUmUm单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source Inverter2负载电流波形形状相同，仅幅值增加一倍。单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source Inverter3开关管导通顺序OuoUmUmt1t2t3t4t5t612121212t1t2t3t4t5t61423142314231423单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source Inverter4无功能量的交换对于半桥逆变电路的分析也完全适用于全桥逆变电路。老师全屏单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source Inverter控制方式移相调压实际上就是调节输出电压脉冲的宽度。单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source InvertertOtOtOtOuG1uG2uG3uG4单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source InvertertOtOtOtOuG1uG2uG3uG4tOiououot1t2t3io单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source InvertertOtOtOtOuG1uG2uG3uG4tOiououot1t2t3ioiouot1t2t3tOiouo单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source Inverter总结1 负载电压负载的电压波形为正负对称、宽度为的正负对称的交变电压，中间有零区，幅度为Ud。单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source Inverter总结2 移相调压控制方式两个半桥各自按180方波控制，即上下两桥臂互补通断，但两半桥的控制方波在相位上相差一定角度。tOtOtOtOtOuG1uG2uG3uG4uoiot1t2t3iouoiouot1t2t3tOiouo单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source Inverter总结3 负载电压调节可以通过改变移相角度来调节输出交流电压有效值大小。老师全屏单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source Inverter总结4 移相范围0180。180方波控制方式可以看作是移相控制方式中的一个特例。tOtOtOtOtOuG1uG2uG3uG4uoiot1t2t3iouo单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source Inverter拓展纯电阻负载时单相半桥逆变采用改变正负脉冲宽度的方法调节半桥逆变电路的输出电压。上下两桥臂的栅极信号正偏的宽度为，反偏的宽度为180-，二者相位差180，输出电压uo正负脉冲的宽度各为。单相全桥电压型逆变电路Single Phase full-Bridge Voltage Source Inverter