您好，
我搭建了TIDA01606的硬件平台进行实验，离网带载实验正常，但当我进行并网整流的时候出现了问题。
交流侧我接入有效值为20V的三相电压，直流侧带100欧姆负载，在实验开始前先对直流母线电容进行预充电处理，然后等待锁相完成
闭合继电器后进行整流实验，实验中模拟电网发出的三相电压被带偏且电流呈现非正弦性（示波器波形图如下所示），这种问题时因为什么，希望能得到解答。
Hello, the problem seems to have found, today I found the AB phase drive Q4 Q3 at the DC-DC conversion lamp did not light, I tested and found two mosfet gate source pole short circuit, mosfet bad, I replaced and then did a little experiment, in my reference current to the reference current has not been cut into the load, the AC to the rms value of the voltage 20V, the DC voltage rises to 500V, after the second experiment, I cut the load to the reference value of the current to give the order of the reference value, to get the C-phase of the voltage and current, as well as the value of the DC bus voltage is shown in the following chart, this kind of is normal, right.Voltage in purple, current in red 。
