Frame of Control Protection System and Control Strategy Implement in Multi-terminal VSC-HVDC System
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Abstract
The three-level hierarchical design of multi-terminal VSC HVDC transmission control and the protection system are presented in this paper, focus on coordinated control function of multi-terminal VSC HVDC, a kind of three-level configuration of control system including coordinated control level, polar control level, and converter control level is designed in this paper, coordinated control function is implemented in multi-terminal master control machine, which ensure the rated DC voltage of network when losing the DC voltage control station of multi-terminal VSC-HVDC, communication network style among different converter stations in of multi-terminal VSC-HVDC, communication network style among different converter stations in multi-terminal VSC-HVDC is presented, based on the communication network style, a kind of coordinated control base on converter to converter high speed communication as well as top level control for the multi-terminal VSC HVDC system is demonstrated in this paper, and this is proved an available control frame for multi-terminal VSC HVDC.
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