Impact of Natural Gas System on Short-term Scheduling with Volatile Renewable Energy

Abstract

[Introduction] In this paper, the impact of natural gas system on the short-term scheduling with high penetration of renewable energy is illustrated and analyzed. [Method] The natural gas infrastructure constraints were integrated into the security-constrained unit commitment model, which minimized the expected operation cost while considering the variable wind power generation. Benders decomposition was applied to solve the problem with non-linear natural gas network constraints. [Result] Illustrative examples with 6-bus power system with 6-node natural gas system demonstrate the effectiveness of the proposed approach for analyzing the impact natural gas system on system scheduling with volatile renewable energy. [Conclusion] An optimal electricity portfolio of renewable and natural gas will continue to be an important direction for future energy system development.

Keywords

• natural gas system
• security-constrained unit commitment
• renewable energy
• power system optimization
• short-term economic scheduling