电气专业英语翻译...谢谢了!

The new energy incorporation electricity generation is the current research hot spot, incorporates the invertor is realizes the electrical energy to present electrical network's important link.But because incorporates the PWM signalling switch frequency which the invertor uses to be low, causes the output current to include the big overtone.This article to reduce the current harmonics which the turn-on frequency creates, introduces the LCL filter substitution model in the incorporation invertor the inductance filter, and aims at uses the LCL filter to incorporate the instability which the invertor system brings, proposed the bridge arm output current and the electrical network output current double closed loop control policy.Obtains the network voltage accurately the phase angle, has the vital significance in the electric power electronic installation design.Regarding needs the systemic voltage synchronization the electric power electronic installation, the phase information cor