© The Institution of Engineering and Technology
IGBT in a T-type inverter delivers unusual performance when accommodated with the conventional collector–emitter voltage (V ce) desaturation protection circuit. By analysing the switching behaviours in the corresponding control sequence, this study presents a false triggering failure phenomenon on the protection circuit. The phenomenon is theoretically analysed. It is aggravated at a larger load current and influenced by the capacitive effects in the antiparallel diode. Analysis done by the authors is validated in a three-phase 15 kW T-type inverter prototype. A false triggering of the protection circuit occurs when the current commutes among the insulated gate bipolar transistors (IGBTs) as a result of the IGBT characteristics being influenced. This study also puts forward a logic algorithm to provide guidance on hardware drive circuit or digital signal processor design depending on the analysis.
References
-
-
1)
-
13. Ma, L., Kerekes, T., Teodorescu, R., et al: ‘The high efficiency transformer-less PV inverter topologies derived from NPC topology’. Proc. European Conf. on Power Electronics and Applications, Barcelona, Spain, September 2009, pp. 1–10.
-
2)
-
14. Schweizer, M., Lizama, I., Friedli, T., et al: ‘Comparison of the chip area usage of 2-level and 3-level voltage source converter topologies’. Proc. Conf. IEEE Industrial Electronics Society, Glendale, USA, November 2010, pp. 391–396.
-
3)
-
L. Bin ,
S.K. Sharma
.
A literature review of IGBT fault diagnostic and protection methods for power inverters.
IEEE Trans. Ind. Appl.
,
1770 -
1777
-
4)
-
9. Shekhawat, S.S., Dhyanchand, P.J., Thollot, P.: ‘Bi-directional switch for neutral point clamped PWM inverter’. .
-
5)
-
M. Hagiwara ,
H. Akagi
.
Control and experiment of pulse width-modulated modular multilevel converters.
IEEE Trans. Power Electron.
,
7 ,
1737 -
1746
-
6)
-
19. Son, H.I., Kim, T.J., Kang, D.W., et al: ‘Fault diagnosis and neutral point voltage control when the 3-level inverter faults occur’. Proc. Conf. on Power Electronics Specialists, Oita University, Japan, June 2004, pp. 4558–4563.
-
7)
-
16. Pontt, J., Rodriguez, J., Huerta, R., et al: ‘High-power regenerative converter for ore transportation under failure conditions’, IEEE Trans. Ind. Appl., 2005, 41, (6), pp. 1411–1419 (doi: 10.1109/TIA.2005.858315).
-
8)
-
12. Ma, L., Sun, K., Jin, X.M.: ‘A transformation method from conventional three phases full-bridge topology to conergy NPC topology’. Proc. Int. Electrical Machines and Systems, Beijing, China, August 2011, pp. 1–5.
-
9)
-
21. Zhang, B., Huang, A.Q., Chen, B.: ‘A novel IGBT gate driver to eliminate the dead-time effect’. Proc. Conf. on Industry Applications, Hong Kong, China, October 2005, pp. 913–917.
-
10)
-
A. Nabae ,
I. Takahashi ,
H. Akagi
.
A new-neutral-point-clamped PWM inverter.
IEEE Trans. Ind. Appl.
,
5 ,
518 -
523
-
11)
-
B.P. McGrath ,
D.G. Holmes
.
Analytical modelling of voltage balance dynamics for a flying capacitor multilevel converter.
IEEE Trans. Power Electron.
,
2 ,
543 -
550
-
12)
-
23. Zhang, H., Tolbert, L.M., Ozpineci, B.: ‘System modeling and characterization of SiC Schottky power diodes’. Proc. Workshops. Computers in Power Electronics, New York, USA, July 2006, pp. 199–204.
-
13)
-
12. Jain, A.K., Ranganathan, V.T.: ‘Vce sensing for IGBT protection in NPC three level converters; causes for spurious trippings and their elimination’, IEEE Trans. Power Electron., 2011, 26, (1), pp. 298–307 (doi: 10.1109/TPEL.2010.2060358).
-
14)
-
S. Busquets-Monge ,
J. Bordonau ,
D. Boroyevich ,
S. Somavilla
.
The nearest three virtual space vector PWM – a modulation for the comprehensive neutral point balancing in the three-level NPC inverter.
IEEE Power Electron. Lett.
,
1 ,
11 -
15
-
15)
-
J. Rodriguez ,
S. Bernet ,
P.K. Steimer ,
I.E. Lizama
.
A survey on neutral-point-clamped inverters.
IEEE Trans. Ind. Electron
,
7 ,
2219 -
2230
-
16)
-
T. Bruckner ,
S. Bernet ,
H. Guldner
.
The active NPC converter and its loss-balancing control.
IEEE Trans. Ind. Electron.
,
3 ,
855 -
868
-
17)
-
15. Li, S., Xu, L.: ‘Strategies of fault tolerant operation for three-level PWM inverters’, IEEE Trans. Power Electron., 2006, 21, (4), pp. 933–940 (doi: 10.1109/TPEL.2006.876867).
-
18)
-
N. Celanovic ,
D. Boroyevich
.
A comprehensive study of neutral-point voltage balancing problem in three-level neutral-point-clamped voltage source PWM inverters.
IEEE Trans. Power Electron.
,
2 ,
242 -
249
-
19)
-
S. Ceballos ,
J. Pou ,
E. Robles
.
Three-level converter topologies with switch breakdown fault-tolerance capability.
IEEE Trans. Ind. Electron.
,
3 ,
982 -
995
-
20)
-
24. Collard, J.R., Sterzer, F.: ‘Current dependence of the depletion-layer capacitance of reverse-biased P–N junctions’, Appl. Phys. Lett., 1964, 5, (8), pp. 165–167 (doi: 10.1063/1.1754100).
-
21)
-
I. Colak ,
E. Kabalci ,
R. Bayindir
.
Review of multilevel voltage source inverter topologies and control schemes.
Energy Convers. Manage.
,
2 ,
1114 -
1128
-
22)
-
5. Patrao, I., Figueres, E., González-Espín, F., Garcerá, G.: ‘Transformerless topologies for grid-connected single-phase photovoltaic inverters’, Renew. Sust. Energy Rev., 2011, 15, (7), pp. 3423–3431 (doi: 10.1016/j.rser.2011.03.034).
-
23)
-
6. Lee, C.T., Hsu, C.W., Cheng, P.T.: ‘A low-voltage ride-through technique for grid-connected converters of distributed energy resources’, IEEE Trans. Ind. Appl., 2011, 47, (4), pp. 1821–1832 (doi: 10.1109/TIA.2011.2155016).
-
24)
-
17. Huang, F., Flett, F.: ‘IGBT fault protection based on di/dt feedback control’. Proc. Conf. on Power Electronics Specialists, Orlando, The USA, Jun. 2007, pp. 1478–1484.
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