5-Level PWM Scheme for a Dual Inverter Drive Using an Open Winding Machine

Perera, Chatumal; Kish, Gregory J.; Salmon, John

doi:10.1109/ecce.2018.8558149

Cited by 6 publications

(3 citation statements)

References 31 publications

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“…The drive can also provide an additional reactive voltage boost without having to increase the input dc-voltage requirement of the drive. The effective line voltage seen by the motor can have up to 5-levels [9]. This reduces both the motor current distortion and PWM harmonic volt seconds, which in turn reduces the copper and iron losses in the motor.…”

Section: Principles Of Operationmentioning

confidence: 99%

“…7). DID dc-links are usually chosen in ratios such as 2:1 [16], [17], and [5], 1:1 [9], [21] or 1:2 [3] to improve PWM quality.…”

Section: F Extra Voltage Boost and Reduction Of Dc-link Voltagesmentioning

confidence: 99%

“…Compared to the neutral point clamped converter (NPC), the DID has both a lower component count [8] and lower dc-link voltage requirements. It also has more redundant switching states and a higher pulse width modulation (PWM) frequency compared to the NPC, allowing for more flexible PWM schemes [9]. The DID topology has three variants which have different dc supplies.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Decoupled Floating Capacitor Voltage Control of a Dual Inverter Drive for an Open-Ended Winding Induction Motor

Perera

Kish

Salmon

2020

IEEE Trans. Power Electron.

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A control scheme is presented for a dual inverter drive with a floating capacitor bridge, with decoupled motor and capacitor dynamics. A stator current reference frame is used that decouples the real and reactive power components of the motor and enables the decoupling of the motor and capacitor dynamics. Apart from the high frequency voltage ripple due to the inverter switching pattern, the capacitor voltage can be kept constant even during large step changes in motor speed reference and load torque. This allows for the use of a significantly smaller floating bridge capacitor whose size depends only on the steady-state high frequency voltage ripple. Additionally, the number of PI regulators used compared to previous works and the dc-link voltage requirements are both reduced. Index Terms-Dual inverter drive, field oriented control, floating capacitor bridge, open-ended winding induction machine.

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Section: Principles Of Operationmentioning

confidence: 99%

“…7). DID dc-links are usually chosen in ratios such as 2:1 [16], [17], and [5], 1:1 [9], [21] or 1:2 [3] to improve PWM quality.…”

Section: F Extra Voltage Boost and Reduction Of Dc-link Voltagesmentioning

confidence: 99%