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Simulation of PD location in power transformer based on Root Multiple Signal Classification method

Simulation of PD location in power transformer based on Root Multiple Signal Classification method,10.1109/ICPADM.2009.5252369,Yan-qing Li,Qing Xie,Na

Simulation of PD location in power transformer based on Root Multiple Signal Classification method  
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Due to the heavy calculation and low estimation precision with little signal-to-noise (SNR) of MUSIC (multiple signal classification) algorithm in partial discharge location used ultrasonic phased array, in this paper, a new location method is proposed based on root-multiple signal classification (Root-MUSIC). Firstly, Root-MUSIC algorithm is used for direction of arrival estimating of PD source. Secondly, space location of PD source is realized by crossover location principle. Finally, the result of simulation based on 7 times 7 plane phased array model vertifies the correctness of the new method.
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