Decentralized robust dispatch for multi‐area AC/DC system considering wind power uncertainty

Abstract

Abstract This paper proposes a decentralized robust dispatch method for multi‐area AC/DC system considering wind power uncertainty. The accommodated wind power interval model is adopted to handle the inherent uncertainty and volatility of wind generation, which is modelled based on the affinely adjustable robust optimization method. The accommodated wind power interval and the automatic generation control participation factors are optimized simultaneously to accommodate more wind energy and ensure operational reliability of the entire multi‐area system. The flexible adjustment model of HVDC converter station is also presented to accommodate more wind power. Then, the resulting economic dispatch model for multi‐area system is solved in a fully decentralized and parallel manner using accelerated alternating direction method of multipliers algorithm to preserve the information privacy and dispatch independence of each region. Case studies illustrate the effectiveness of the proposed model.

Keywords

• Wind power plants
• Optimisation techniques
• Control of electric power systems
• Optimisation techniques
• Power system management, operation and economics
• d.c. transmission