Passivity-based modulation of hybrid AC-DC transmission systems
交直流混合输电系统的新型无源性调制

The dynamic performance of the AC-DC transmission system plays a key role in the stability of a power sys- tem.To accelerate the transient response and to improve the controller robustness,we design a passivity-based modulation controller for a DC transmission system,by applying the passivity theory to the construction of the physical system.A par- allel 2-generator AC-DC system with reconstructed input and output is taken as the testing object for verifying the passivity. The feedback control strategy is designed based on the relation between passivity and stability.Simulation results of the system in two different disturbance conditions demonstrate the reduction of the transient time,while keeping the stability of the system.