A new coordinated approach to state estimation in integrated power systems

作者：Abbasi Ali Reza; Seifi Ali Reza^*

来源：International Journal of Electrical Power & Energy Systems, 2013, 45(1): 152-158.

DOI：10.1016/j.ijepes.2012.08.058

• Mixed state estimation (MSE)
• Integrated power system
• Energy management system (EMS)
• Distribution management system (DMS)

Many large cities have their hybrid transmission and distribution networks, while traditionally, transmission and distribution state estimators are studied and developed separately. In order to achieve a global consistent state estimation solution, the balance transmission and unbalance distribution networks are studied as a whole in this paper. A novel master-slave-splitting (MSS) iterative method is developed for calculating large-scale and mixed state estimation (MSE) problem. In the MSS method, with introducing the boundary fictitious measurement, the MSE problem of large scale is split into a balanced transmission state estimation and many unbalanced distribution state estimation sub-problems of small scale. In order to fit the different features between balanced transmission and unbalanced distribution networks, each sub-problem can be solved with different algorithm. Several case studies are carried out, and the accuracy, convergence, efficiency and reliability of the proposed method are validated.

• 出版日期2013-2