A Nonlinear Controller for Neutral Point Piloted (T-Type) Multilevel Inverter-Based Three-Phase Four-Wire DSTATCOM

Table 4

Cost comparison of 3P4W NPC, ANPC, and NPP-based DSTATCOMs.

Configuration	NPC	ANPC	NPP (T-type)
IGBT semipack switch (SKM300GB12T4, 1200 V, and 50 A)	4462  4  3 = 53544	4462  6  3 = 80316	4462  4  3 = 53544
DC capacitors with voltage sensor (4700 μF/450 V) B43743A5478M000	7288  2 = 14,576	7288  2 = 14,576	7288  2 = 14,576
Heat sink cost (KL-2855, P3/300 mm)	3000	4000	3000
Skyper board (SKHI 10/12R, 1200 V and 8 A)	9600  4  3 = 1,15,200	9600  6  3 = 1,72,800	9600  3  3 = 86,400
Snubber capacitor (MP-4 1F/1200 V dc H1 AD)	400  4  3 = 4,800	400  6  3 = 7,200	400  4  3 = 4,800
Coupling inductors (3 mH, 10 A)	2400  3 = 7,200	2400  3 = 7,200	2400  3 = 7,200
Clamping diodes (IXYS 1.2 kv, 109 A, 1.55 V, 60 ns, 600 A)	6  465 = 2790	18  465 = 8370	Not required
Total cost (INR) (as on May 2022)	2,01,110	2,94,462	1,69,520