Abstract
This paper presents a security-constrained unit commitment (SCUC) solution for the optimal integration of large-scale offshore wind energy into a power grid. The solution considers a linear static state representation of multiterminal voltage source converter (VSC)-based high voltage direct current (HVDC) network and effectively incorporates this model into SCUC. The proposed algorithm consists of two major solution components: 1) component implements a SCUC solution for the inland power system; 2) component executes a scheduling of multi-terminal VSC-based offshore HVDC power system. Auxiliary problem principle technique is utilized to coordinate the power injections/withdrawals at HVAC/DC grid interfaces, which are obtained from both the inland and offshore scheduling components. Numerical tests illustrate the effectiveness of the proposed algorithm in the integration of large-scale offshore wind energy into the power grid.
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