A Decentralized Optimal Operation of AC/DC Hybrid Microgrids Equipped With Power Electronic Transformer

A Decentralized Optimal Operation of AC/DC Hybrid Microgrids Equipped With Power Electronic Transformer

Blog Article

In the AC/DC hybrid microgrids equipped with power electronic transformer (PET), different AC grids and DC grids are connected through multiport PET to operate the entire network in a secure and economic manner.This paper proposes a decentralized optimal power flow Notebook model, considering the multiport coordinated control strategy of PET, for running autonomous AC/DC hybrid microgrids.To optimize the power flow in the network, the steady state model of PET is established, including voltage source converter power injection model and Kriging model.

By introducing a secondary droop control layer can realize the autonomous operation of AC/DC hybrid microgrids and increase the utilization efficiency of distributed generations.Then using the analytical target cascading approach, each AC/DC sub-microgrid is regarded as different autonomous subjects.The distributed PET is as Baby Jumpers power coupling node and information interaction node to decompose the optimal problem of AC/DC hybrid microgrids equipped with PET which is solved in parallel.

The obtained subproblems for these grid levels are solved with a nested solution process.The simulation results verify the correctness and effectiveness of the proposed model in this paper.