Development of Micro Phasor Measurement Unit (μPMU) Using Embedded Controller
Date Issued
2014
Date
2014
Author(s)
Chen, Jyun-Cheng
Abstract
Synchronous pahsor measurement units (PMUs) are data acquisition devices utilized in wide-area monitoring systems (WAMS). They are installed at selected buses, sampling three-phase voltage and three-phase current to calculate the phasor. The capability of receiving Global Positioning System (GPS) signals such as time tag and 1- pulse-per-second signal synchronizes phasor data collected from all over the power grid. Synchrophasors in real-time applications are used to monitor the status of the power system so as to, when fault occurs, enable operators to take proper measures as soon as possible. In nonreal-time applications, researchers analyze these data to find the cause of the event in the hope of preventing similar events from reoccurring. Nevertheless, its high price is a significant drawback which impedes its spread. Moreover, when constructing a wide-area monitoring system which monitors the entire power system, devices with easy-to-install characteristic are expected to accelerate the development. And the number of installed measurement units can be even larger. The goal of this research is to develop a mass-producible measurement device which directly samples the voltage from electrical outlets. After some consideration, embedded system with digital signal processor is chosen as the development platform for it performs very well in computing and provides various peripherals.
Subjects
廣域量測系統
嵌入式系統
同步相量量測
Type
thesis
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