基于暂态可观性的向量测量单元配置方法

PMU Configuration Method Based on Transient Observability

指出向量测量单元布点问题需要在满足一定约束条件下同时优化2个相互冲突的指标,即配置向量测量单元的数目(或费用)最少和测量冗余度最高,提出了基于0—1规划法的模型对系统正常运行方式下稳态全可观的向量测量单元配置,与此同时,进一步研究在暂态情况下系统全可观的向量测量单元配置。利用N-1故障原则,给出了系统发生故障时向量测量单元进行配置时的约束条件,结合传统的配置指标,共同构成基于暂态可观的向量测量单元配置。通过对IEEE 30系统进行仿真,验证了向量测量单元配置方法的有效性。

PMU configuration needs to simultaneously optimize two conflicting indicators under some constraint conditions.One condition is that the number of PMU should be configured minimally and the other is that it should maintain the highest measurement redundancy.This paper presents the PMU configuration when the system operates steadily and fully observably based on 0—1programming model.At the same time,further study is done on the PMU configuration when system operates under transient state.By utilizing the N- 1 fault principle,the constraint conditions when PMU needs to be configured when faults occur are given.Combining the traditional configuration index,a considerable PMU configuration based on transient state is formed.Through the simulation of IEEE 30 system,the proposed method is verified to be effective.