Hierarchical Control of HV-MTDC Systems With Droop-Based Primary and OPF-Based Secondary

摘要: This paper proposes a hierarchical control architecture designed for an arbitrary high voltage multiterminal dc (MTDC) network. In the proposed architecture, primary of MTDC system is decentralized and implemented using generalized droop strategy. Design criteria dimensioning parameters, including limits, are offered by analyzing transients appearing in system. The secondary centralized regulates operating point (OP) network so that optimal power flow (OPF) achieved. Compared to previous works, this further elaborates, both analytically through simulations, on coordination between layers. includes how local controllers have be driven controller order ensure smooth transition OP.