The Control Algorithm of Three-Level NPC Inverter under Unbalanced Input Voltage Conditions
作者： Yong-ho Yu , Nam-Joon Ku , Dong-Seok Hyun
DOI: 10.1109/VPPC.2014.7007142
关键词: Dropout voltage 、 Inverter 、 Voltage 、 Control system 、 Voltage divider 、 Control theory 、 Voltage optimisation 、 Voltage regulation 、 Engineering 、 AC power
摘要: This paper performs the control algorithm of three-level Neutral-point-clamped (3L-NPC) inverter system including neutral point voltage balance under unbalanced conditions because 3L-NPC as compared with a conventional two-level has an inherent problem potential variation. The input supply is follows. First, reference currents are selected to eliminate constant component reactive power and second-order harmonics active power, these induced by dc-link control. Second, operate conditions, both positive-and negative sequence grid should be controlled simultaneously. Finally, control, simplified balancing method used voltage. achieved calculated off-set factor. So, overall composed current validity been proven through simulation results.
sci-hub.se 参考文章(8)
Yoon-Hyuk Ko, Byoung-Gun Park, Rae-Young Kim, Dong-Seok Hyun, Ha-Jin Jung, A simple space vector PWM scheme with neutral point balancing for three-level neutral point clamped inverter ieee industry applications society annual meeting. pp. 1- 6 ,(2011) , 10.1109/IAS.2011.6074330
D. Vincenti, Hua Jin, A three-phase regulated PWM rectifier with on-line feedforward input unbalance correction IEEE Transactions on Industrial Electronics. ,vol. 41, pp. 526- 532 ,(1994) , 10.1109/41.315271
Hong-Seok Song, Kwanghee Nam, Dual current control scheme for PWM converter under unbalanced input voltage conditions IEEE Transactions on Industrial Electronics. ,vol. 46, pp. 953- 959 ,(1999) , 10.1109/41.793344
F. Blaabjerg, Z. Chen, S.B. Kjaer, Power electronics as efficient interface in dispersed power generation systems IEEE Transactions on Power Electronics. ,vol. 19, pp. 1184- 1194 ,(2004) , 10.1109/TPEL.2004.833453
P. Rioual, H. Pouliquen, J.-P. Louis, Regulation of a PWM rectifier in the unbalanced network state using a generalized model IEEE Transactions on Power Electronics. ,vol. 11, pp. 495- 502 ,(1996) , 10.1109/63.491644
B.J. Song, A.J. Koivo, Nonlinear predictive control with application to manipulator with flexible forearm IEEE Transactions on Industrial Electronics. ,vol. 46, pp. 923- 932 ,(1999) , 10.1109/41.793340
Yongsug Suh, V. Tijeras, T.A. Lipo, A control method in dq synchronous frame for PWM boost rectifier under generalized unbalanced operating conditions power electronics specialists conference. ,vol. 3, pp. 1425- 1430 ,(2002) , 10.1109/PSEC.2002.1022376
Dae-Woong Chung, Joohn-Sheok Kim, Seung-Ki Sul, Unified voltage modulation technique for real time three-phase power conversion ieee industry applications society annual meeting. ,vol. 2, pp. 921- 926 ,(1996) , 10.1109/IAS.1996.560193