Analysis and Minimization of the Oscillatory Currents in Multibranch Thyristor-Switched Capacitors

Figure 7

Waveforms of the total current (thick curves) for the switching of the fourth branch (𝑘=4). The initial voltage is 𝑉_𝑜=𝑉_𝑚, 𝛾=0.208 per unit. The thinner curves represent (to a reduced scale of 1/300) the waveform of the source phase voltage. (a) 𝛼=90^∘ and (b) for the optimal switching angle 𝛼=57.57^∘.

(a)

(b)