System Identification of Power Network for Coordinated Setting of PSSs

The PSS is the reasonable controller to stabilize the inter-tie and local oscillations of power network. The PSSs are usually set with the one-machine infinite-bus system model. The coordinated setting of the multiple PSSs considering the characteristics of the network, is expected to improve the stability. For this purpose, the Modal Performance Measure method is applied for adjusting PSS parameters. The model is identified with the N4SID identification method In this paper, the conditions of identification and validation of identification are shown. Identified model are validated by comparison of vector diagram, impulse responses and so on. Identification of power network that consists of many generators is succeeded.