An integrated transmission expansion planning and battery storage systems placement - A security and reliability perspective

Abstract

This paper presents a new mathematical approach for co-planning of transmission expansion planning and battery storage systems placement. An optimal placement of grid-scaled battery storage systems can help transmission systems in congestion managements and improve power system security. In addition, battery storage systems can increase power system reliability in contingency conditions. In this paper a security and reliability viewpoint is implemented for the simultaneous transmission expansion planning and the optimal placement of battery storage systems. The N-1 security constraints are applied to the expansion planning model. The reliability indices evaluated from second order outages are also involved in the decision making process. The Benders’ decomposition approach is used to reduce the computational burden of the proposed model and make it applicable for large scaled power systems. The IEEE 24-bus test system is used to evaluate the applicability of the proposed method.