Performance evaluation of controlled QZSI fed five‐phase induction motor under voltage sag and interruption

Abstract

Summary This paper proposes a dynamic evolution control (DEC)–based quasi‐Z‐source inverter (QZSI) fed five‐phase induction motor (IM) drive system for nonideal supply voltage conditions. Since, multiphase drives are mostly applicable for sensitive applications, disturbances in the form of voltage sag and interruption is a serious issue. A QZSI offers significant advantages over conventional inverter, such as boost in output direct current (DC) voltage (VO), utilization of shoot‐through state of inverter switches, and delay time avoidance between switches of inverter's each leg. These advantages are effectively utilized with proposed DEC (a nonlinear control function) based duty cycle “D” generation method. “D” is then integrated with space vector modulation (SVM) scheme for direct torque control (DTC) of five‐phase IM drive. A comparative experimental analysis of proposed drive system is presented under different voltage sag conditions, ie, types A, B, and C. Also, a simulation approach is presented for the drive system with an independent external source under voltage interruption condition, which is mostly a follow up phenomena for voltage sag.

Current Limitation Method for V / f Control of Five-Phase Induction Machines

“…Because of the higher number of phases, the biggest drawbacks of 5pIM are higher switching losses and more complex control algorithms compared to conventional 3pIM. e application class for 5pIM contains electric and hybrid cars, aircraft and spaceship applications, marine propulsion systems, and high-power traction drives [2,3]. 5pIMs are especially suitable for safety-critical applications requiring a high degree of redundancy.…”

Sequential model predictive control of quasi Z‐source inverter with fixed frequency operation

“…Later, many reshape were developed for qZSI, but each adaption has its issues and complications 5 . qZSI has been tested to many applications such as solar PV systems, 6 adjustable speed control drives, 7,8 microgrid applications, 9 multi‐port converter for battery applications, 10 and electric vehicle applications in Battiston et al 11,12 In Guo e al, 13 a high performance 85 kW inverter was developed and tested under various conditions to test the suitability of qZSI for electric vehicle applications.…”