Neural networks controlling for both the DC boost and AC output voltage of Z-source inverter

This paper uses algorithms for controlling both the dc boost and ac output voltage of Z-source inverter using neural networks. The capacitor voltage of the Z-source network is controlled linearly in order to improve the transient response for dc boost control of the Z-source inverter. The peak value of the ac output voltage is used to control exactly the ac output voltage to its desired level. A modified space vector pulse-width-modulation scheme is also applied to control the shoot-through duty ratio for boosting dc voltage. The neural networks control technique is verified with simulation results and compared with the traditional PI controller responses.

[1]  L.M. Tolbert,et al.  Maximum constant boost control of the Z-source inverter , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..

[2]  Hong-Hee Lee,et al.  Algorithms for Controlling Both the DC Boost and AC Output Voltage of Z-Source Inverter , 2007, IEEE Transactions on Industrial Electronics.

[3]  F.Z. Peng,et al.  Maximum boost control of the Z-source inverter , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[4]  F.Z. Peng.  Z-source inverter for motor drives , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[5]  Poh Chiang Loh,et al.  Small-signal and signal-flow-graph modeling of switched Z-source impedance network , 2005, IEEE Power Electronics Letters.

[6]  Fang Zheng Peng.  Z-source inverter , 2002 .

[7]  Tae-Won Chun,et al.  Ac output voltage control with minimization of voltage stress across devices in the Z-source inverter using modified SVPWM , 2006 .