Adaptive critical eigenvalues tracing via projected continuation of invariant subspace

作者：Xu, Pengfei; Wang, Xiaoru^*; Ajjarapu, Venkataramana

来源：IET Generation Transmission & Distribution, 2017, 11(8): 2115-2123.

DOI：10.1049/iet-gtd.2016.1986

• eigenvalues and eigenfunctions
• power systems
• adaptive power system critical eigenvalues tracing approach
• projected continuation of invariant subspace
• CIS
• adaptive update strategy
• IEEE-118 bus systems
• New England 39-bus systems
• bifurcation
• missing instability information avoidance

An adaptive power system critical eigenvalues tracing approach based on the projected continuation of invariant subspace (CIS) is proposed in this study. The proposed method reduces problem size by applying projections to invariant subspace corresponding to critical eigenvalues to ensure efficiency. An adaptive update strategy is adopted to detect and include new critical eigenvalues, ensuring that eigenvalues of interest are always traced. Testing on New England 39- and IEEE-118 bus systems shows that the proposed approach can detect and trace new critical eigenvalues as soon as they emerge and immediately find bifurcation, thus avoiding missing instability information. It also shows that the proposed approach has an advantage in terms of computational time.

• 出版日期2017-6-1
• 单位西南交通大学; 中国电力科学研究院