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A mechanical parameter estimation algorithm for permanent magnet synchronous motor (PMSM) drive system basing on sliding mode observer is proposed in this paper. First, an extended sliding mode mechanical parameter observer (ESMMPO) is presented to track system disturbances in real time. Based on this ESMMPO, a simple algorithm for mechanical parameter estimation of the PMSM control system is presented...
In this paper, a fully automated, low-cost, real-time illuminance measurement system for LED long term reliability tests is proposed. The system has only one photodetector to measure the illuminance of all samples inside the test chamber during the reliability test. With a proprietary algorithm, a single photodetector can measure the illuminance of all samples in the chamber by sequential scanning...
In this paper, a fully automated, low-cost, real-time illuminance measurement system for LED long term reliability tests is proposed. The system has only one photodetector to measure the illuminance of all samples inside the test chamber during the reliability test. With a proprietary algorithm, a single photodetector can measure the illuminance of all samples in the chamber by sequential scanning...
It is critically important for improving the wide area situation awareness of the operators or operational engineers and regional reliability coordinators of a large interconnected systems to prevent large scale cascading system outages. This paper describes an advanced wide-area power system visualization application (WAPSVA) for the real-time reliability monitoring using real-time synchrophasor...
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