基于差分与共模功率控制的VSC-HVDC互联交流电网振荡阻尼

This article presents a control approach for HVdc interconnections that provides damping of frequency oscillations in asynchronous ac grids by introducing a virtual friction for coupling their inertial dynamics. The HVdc interconnection is modeled by using the concept of common and differential power flow, allowing for independent control of the dc voltage and the net power transfer between HVdc t...