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An asymmetric three-level neutral point diode clamped converter for switched reluctance motor drives is proposed in this paper. The modulation method, the dc-link voltage balancing algorithm, and the current control scheme of this converter are presented. The proposed three-level converter is compared with the conventional two-level asymmetric half-bridge converter in terms of cost, current ripple,...
High-speed permanent magnet motors (HSPMMs) have gained ever-increasing interests in high speed direct-drive applications due to their advantages of high-power density, small size and high efficiency. However, the low stator inductance of the HSPMM causes large current ripple in the stator current, therefore brings additional iron loss. The Modular multilevel converter (MMC) increases both voltage...
This paper presents a design of space-vector PWM (SVPWM) integrated circuit. The proposed strategy is implemented and verified on a single Altera's Cyclonetrade series of FPGA (EPICF400C7). Experimental results show that this controller can present an excellent drive performance and its switching frequency, as well as its dead time, is adjustable. The design can be used in vector control of AC servo...
This paper presents a design of space-vector PWM (SVPWM) integrated circuit. The proposed strategy is implemented and verified on a single Altera's Cyclonetrade series of FPGA (EPICF400C7). Experimental results show that this controller can present an excellent drive performance and its switching frequency, as well as its dead time, is adjustable. The design can be used in vector control of AC servo...
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