Comparative study of semiconductor power losses between CSI-based STATCOM and VSI-based STATCOM, both used for unbalance compensation

Protection and Control of Modern Power Systems

Table 5 Substation characteristics of study case

Characteristics	Value
Transformer rated power	60 MVA
Transformer primary rated voltage	225KV
Transformer secondary rated voltage	2*25KV-50 Hz
Connection	Tow-phases
secondary situation	Mid-point
Kilometric point of substation	Pk100 (100 km)
Distribution schematic of High speed substations	Figure 17
Unbalance factor in function of daily railway traffic between 11h00mn and 17h00mn	Figure 18
Power grid High voltage line (225KV)	Short-circuit power: S_cc = 800MVA, Line parameters: R_line(Ω/Km) = 0.129 and L_line (mH/Km) = 1.366