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In this paper, the PMU performances evaluation, especially the dynamic one, are presented, which is significant for improving PMU behavior in smart grid. The comprehensive test program including steady state test and dynamic test is outlined. And the details of the test items are revealed. On the basis of this, the performances of PMUs from three main vendors in China are tested and evaluated. The...
With the high frequent occurrence of large scale of blackouts and the development of smart grids, wide-area protection and control system (WPCS) with synchrophasors becomes the research focus. Since the performance and the reliability of WPCS are crucial for the security of the system, it is of great importance to test the system carefully before its commission. However, it is hard to solve this problem...
The instrument transformer is the necessary equipment which connects the primary power system and PMU. Therefore, the measurement accuracy of PMU is directly affected by the transfer accuracy and the transient response of instrument transformer. In this paper, the dynamic signal models are abstracted from the phenomena of practical power systems. Under such kinds of dynamic signal models, the impact...
Wide area measurement system (WAMS) has been widely used in power system dynamic monitoring and control, such as low frequency identification and control, stability assessment and preventive control, etc. However, as a measurement tool, phasor measurement unit (PMU) has the measurement error and bad data unavoidably. If the raw measurements are applied in power system analysis and control directly,...
Wide area measurement system (WAMS) has been widely used in power system dynamic monitoring and control, such as low frequency identification and control, stability analysis and control, etc. However, as a measurement tool, WAMS has the measurement error and bad data unavoidably. If the raw data is applied directly, the unpredictable consequence will be resulted in. Aiming at this problem, a novel...
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