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In this paper, we explored a new way for linear circuit transient analysis based on the accompanying network method. This new method is simple and convenient, tries to avoid differential equation from the beginning of the establishment of circuit equations, makes use of accompanying network by which the transient process can be divided into a series of discrete time intervals Δt, replaces the dynamic...
Large transient grid voltage unbalance will result in deterioration of the doubly-fed induction generators(DFIGs) by introducing over current of rotor side converter(RSC) and double frequency oscillation in dc link voltage and electromagnetic torque. The rotor current controller with the conventional reduced DFIG model, which does not take into account the stator flux transients, could not obtain...
The demand for the detection of objects with low probability of observation is increasingly needed. The reason is that noises always badly affect the measured results. The method of signal detection in low signal to noise ratio (SNR) is widely concerned. To detect the weak signals buried in noises is a fundamental and important problem. It has been found that digital filters are not suitable for processing...
Doubly-fed induction generator (DFIG) has been widely used in the variable-speed constant-frequency (VSCF) wind energy generation system. In traditional vector control scheme, the reduced DFIG model with both stator flux transients and the effect of flux saturation neglected was employed to simplify the rotor current inner-loop controllers processed by standard PI regulation, which can perform well...
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