A Novel Voltage Control Area Partitioning Algorithm Based on Energy Sensitivity Matrix and Multi-Threshold Search Route

Since energy information in nodes can comprehensively reflect the reactive injection and voltage level of node, this paper proposes a new partitioning method based on static energy function and multi-threshold search algorithm for decentralized voltage control. With the energy information of node, the node energy correlation degree index (NECDI) is proposed to evaluate reactive relevance between different nodes. Based on the NECDI, the energy sensitivity matrix (ESM) is then established. After that, the ESM is decomposed to get voltage control area (VCR) by multi-threshold search method. Finally, plenty of simulation results about IEEE 30- and IEEE 118 bus systems, and some comparisons with the traditional partitioning method demonstrate the validity of our proposed algorithm, which is effective to solve some questions of the practical engineering projects.