Optimal PMU placement with local redundancy of conventional measurements

This paper talks about optimal PMU placement problem with consideration of conventional measurements from the angle of robustness of state estimation (SE). Using the Binary Linear Integer Programming method, local redundancy of the existing measurements is considered in the PMU placement strategy. Besides, considering the number of PMUs implemented yearly is limited, a multistage placement strategy is proposed according to the improvements on local redundancy. Case study on IEEE 14-bus system is carried out to show the effectiveness of the method on redundancy improvements in SE.