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Synchronization problem was the principal problem and technological challenge for hydrostatic driving tracked vehicle in straight working conditions. The asymmetry caused by parameter perturbations, friction resistance coefficient, leakage coefficient and pump displacement are taken into consideration. These factors were treated as disturbance inputs, and were suppressed by control algorithm. A simulation...
This paper analyzed the method of using FCL to enhance FRT capacity of FSWT and compared the performance of resistive-type fault current limiters (RFCL) and reactor-type fault current limiters (LFCL) of different limiting impedance. The minimum required value of the impedance for maintaining stable operation of FSWT during fault is determined, as well as dynamic stable speed and critical clearing...
In this paper, the impact of precipitation pH and conductivity on soil resistivity were studied by analyzing observation data of precipitation pH value and conductivity (K value) and simultaneous observation data of resistivity at different depths of soil for one year. The results indicated that “daily average resistivity for different depths of soil at a fixed location in the same area has a significant...
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