Reliability Evaluation for Interconnection Planning in North East Asia

This paper proposes reliability evaluation for interconnection planning using a tie line constrained equivalent assisting generator model (TEAG) that considers uncertainties of interconnected transmission systems and tie lines. Development of this model was triggered by the need to perform probabilistic reliability evaluations on the NEAREST (North East Asia Region Electric Systems Tied) interconnection. The TEAG is a basis for the newly developed interconnection systems reliability evaluation computer program, INTEREL. The model is capable of considering uncertainties associated with generators, tie lines, and the tied grids. Reliability evaluations for six interconnection scenarios of the actual power systems of six countries in the Asian north eastern region were performed using the INTEREL.