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Operation engineers at EMS control center are very interested in the potential use of State Estimation (SE) technologies for identifying parameter and model errors, especially when encountering the scenario of an invalid SE solution or an SE solution with non-trivial residuals. Some network parameter and model errors, like an incorrect transformer tap or an analog measurement with flipped sign, can...
On the basis of studying the real-time database technology, combined with CC-2000A system of Kedong company, the CASE management functions is being developed, which improved the history data processing method in the real-time database of SCADA (Supervisory control and data acquisition systems). It can achieve the goal of preserving, recovering and deleting the entities of real-time database, graphics...
This paper describes the implementation, testing, and performance of phasor measurements in an industrial state estimation at the New York Power Authority (NYPA). Phasor Measurement Units (PMU) with GPS synchronization were incorporated into the data acquisition subsystem of the Energy Management System (EMS). The modified state estimator was subjected to pre- and post-field installation testing....
This paper presents a cost effective approach, using special-purpose hardware implemented using field programmable gate arrays (FPGA) - commodity programmable hardware, to accelerate the performance of key components of an energy management system (EMS). These components include state estimation, optimal power flow, and load flow computation. All of these components have at their core the solution...
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