The PMU dynamic performance evaluation and the comparison of PMU standards

Synchronized phasor measurement is one of the most important information sources for smart transmission grid, which provides a new path for power system dynamic monitoring, analysis and control. Therefore whether the PMU (phasor measurement unit) can track the status of the power system, especially under the dynamic condition, is crucial. In order to evaluate the performance of PMU, the latest Chinese PMU standard including dynamic specifications is outlined, and the comparison with the IEEE C37.118.1 is made. On the basis of this, the performances of PMUs from three main vendors in China are tested and evaluated. The PMU test system is presented and the detailed results are discussed, which reveals the problems existed and the suggestions are made to improve the algorithm of PMU.