Multiphase Z-source inverter using maximum constant boost control

Abstract

Multiphase Z-source inverter using maximum constant boost control ABDELLAH KOUZOU and HAITHAM ABU-RUB This paper deals with the impedance source (Z-source) multiphase inverter, where the maximum constant boost control method is studied and analyzed in the general case of number of phases. On the other side the impact of the modulation index and the number of phases on the duty cycle shoot-through and on the gain of the output voltage ranges is presented. To validate advantages of the Z-source multiphase inverter, the proposed topology and the maximum constant boost control are implemented in simulation and in real time experimentation with Z-source five phase inverter. The output voltage is applied to two parallel loads, a five phase resistive load and a five phase induction machine.

Experimental Study Of SBPWM For Z-Source Inverter Five Phase

“…In 2013, A. Kouzou [5] reported the use of PWM in multiphase systems, in which case amaximum boost control (MBC) strategy for multiphase system from 3, 5, 7, 11, 13, 15, 17, 19 and 21 phases under simulation task were employed. In the experimental setup, the researchers fed two parallel loads, a five-phase resistive load and a five-phase induction machine to verify the simulation result.…”

“…In the experimental setup, the researchers fed two parallel loads, a five-phase resistive load and a five-phase induction machine to verify the simulation result. They found that the system could accomplish any desired output multiphase AC voltage whose magnitude is greater than the input DC voltage [5]. The performance parameters of the system was also improved, which include the decrease in the Z-source capacitor voltage and Z-source inductor current ripple [5].…”

“…However,in the shoot-through state, the output five phase H-bridge inverter terminals are shorted at both the upper and the lower switching devices of any of the phase legs [16], while simultaneously, the capacitor voltage is boosted by receiving the energy from the inductor [17]. The total number of shoot-through states of ZSI five phase dealing with the standard formulation is 2 n -1 [5], where n represents the number of phases. Thus, for ZSI five phase, the available total shoot-through states are 31, as shown in Table 1 that has been adopted from [2].…”

“…Other researcher found [4] that ZSI has progressed actively with the electric vehicle whereby the drive voltage is stress in huge and its investigation has also become a continuing concern within the scope of multiphase systems. There is a large volume of published studies describing the roles of ZSI in multiphase systems [5]- [7]; however, this paper focuses only on the fivephase inverter since it commonly used and the smallest number of phases in a multiphase systems [8].…”