Power stability analysis of multi-infeed HVDC systems

In this work, the well known concept of maximum power for analyzing the power stability of single-inifeed HVDC systems, is extended to the multi-infeed HVDC situation. Based on this concept, two approaches to analyze the power stability of multi-infeed HVDC systems are derived. One approach uses the standard maximum power curve technique while the other uses an eigenvalue decomposition technique. These approaches are not equivalent, thus, comparisons between them and alther power/ voltage stability analysis methods are also made.