Direct Instantaneous Torque Control of Switched Reluctance Motor for Aerospace Applications

Dankadai, N. K.; McDonald, Steve; Elgendy, Mohammed A.; Atkinson, Dave; Ullah, Sana; Atkinson, Glynn

doi:10.1109/upec.2018.8541884

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…Given (17), Figure 11 shows the instantaneous switching frequencies for ∆Σ-PWM and DTC as a function of the electric angle. Figure 11a,b presents the filtered phase voltages, where, in addition, also the angle boundaries of ∆Σ-PWM and the sector boundaries of DTC are marked.…”

Section: Comparison Of Instantaneous Switching Frequenciesmentioning

confidence: 99%

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Comparison of Hysteresis Based PWM Schemes ΔΣ-PWM and Direct Torque Control

2021

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This paper presents the differences and similarities of ΔΣ-PWM as a hysteresis-based PWM scheme with direct torque control (DTC) using simulation models. The variable switching frequency caused by the hysteresis element is examined with regard to its instantaneous values. The comparison is based on an equal maximum switching frequency as a design criterion. With this first assumption, the variation of the instantaneous switching frequency is higher when using DTC because of the temporary prioritization of one inverter leg. Besides the lower variation, ΔΣ-PWM shows a higher average switching frequency. Because the switching frequency is related to the torque ripple, the usage of ΔΣ-PWM results in a smaller torque ripple. Due to the dependence of torque ripple on switching frequency, a second comparison is carried out based on the same average switching frequency. In this comparison the ΔΣ-PWM shows higher torque ripple than DTC.

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Section: Comparison Of Instantaneous Switching Frequenciesmentioning

confidence: 99%

“…DTC is one of the most famous control schemes working with a variable switching frequency [12]. Although DTC was developed in 1986, it is still frequently used in various applications [13][14][15][16][17][18]. Due to its history and familiarity with electrical drive systems, DTC was chosen to be compared with ∆Σ-PWM.…”

Section: Introductionmentioning

confidence: 99%