Design and Research of Multi-agents Coordinated Control in Multi-feed HVDC

DC power modulation is a great potential control measure in the power system.When such system is under a large disturbance,the active power that is injected from DC to AC system can be coordinated swiftly because of the short-time overload of DC system,so that the unbalance of active power of both the sending and receiving end can be adjusted,and the power angle and frequency transient stability can be enhanced.According to the requirements of power modulation,auxiliary power/frequency control multi-agent system was designed in this paper.The operating modes and the structure of this system were illustrated as well.Finally,the simulation of a multi-in-feed DC power system shows that the power coordination control of multi-loop DC system can be archived rapidly by this system under the situation of AC-DC system faults,and the improvement of power angle / frequency transient stability of the system was obvious.