Improved overmodulation technique for enhancing torque capability of inverter-driven AC motors
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Power Electronics"
DOI: 10.1007/s43236-020-00216-2
Abstract: The overmodulation operation of a three-phase inverter can enhance the output torque capacity of the AC motors. In this case, the enhancement varies depending on the overmodulation schemes applied for the overmodulation operation. Steady-state overmodulation… read more here.
Keywords: overmodulation; dynamic overmodulation; overmodulation operation; inverter ... See more keywords
Overmodulation Strategy Using DC-Link Shunt Resistor Inverters to Maintain Output Voltage Linearity
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Access"
DOI: 10.1109/access.2021.3130998
Abstract: To detect the three-phase current in the complex plane of a DC link shunt inverter, an algorithm for restoring the current is required. In this paper, a method of dividing the detection voltage and the… read more here.
Keywords: link shunt; overmodulation; voltage; output voltage ... See more keywords
Extended Overmodulation Operation of Space Vector PWM for Traction Motor Control at Low Switching Frequency
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3222082
Abstract: There are several benefits of fully utilization of DC link voltage in railway traction applications in terms of increasing inverter output voltage, satisfying power-torque demand and component sizing. To meet traction system requirements; mostly space… read more here.
Keywords: switching frequency; space vector; frequency; traction ... See more keywords
Four-Degree-of-Freedom Overmodulation Strategy for Five-Phase Space Vector Pulsewidth Modulation
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Journal of Emerging and Selected Topics in Power Electronics"
DOI: 10.1109/jestpe.2020.2992659
Abstract: This article proposes a four-degree-of-freedom overmodulation strategy for five-phase space vector pulsewidth modulation (SVPWM) in order to reduce the low-order harmonics of the output voltage during overmodulation. Based on the nearest-four-vector SVPWM algorithm, this overmodulation… read more here.
Keywords: overmodulation; overmodulation strategy; strategy; modulation ... See more keywords
Overmodulation Index Optimization Method for Torque Quality Improvement in Induction Motor Field-Weakening Control
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2020.3047054
Abstract: The overmodulation canimprove the utilization of dc-link voltage in the induction motor (IM) field-weakening (FW) control, thereby extending the maximum output torque. Nevertheless, the high modulation index (MI) will cause severe torque ripple. To figure… read more here.
Keywords: torque ripple; method; overmodulation; torque quality ... See more keywords
Minimum-Nonlinear-Voltage Method for Torque Ripple Suppression in Induction Motor Overmodulation and Field-Weakening Control
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2021.3082075
Abstract: The overmodulation-based nonlinear voltage extension could increase the maximum output torque of the induction motor (IM) in the field-weakening (FW) region. Since the voltage distortion increases with the deepening of overmodulation degree, the extreme nonlinear… read more here.
Keywords: overmodulation; voltage; torque demand; nonlinear voltage ... See more keywords
Adaptive Overmodulation Strategy for PMSM Field-Weakening Control Based on Working Quadrant
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2022.3217606
Abstract: In the traditional overmodulation method, the reference of a voltage loop is usually fixed to a constant value for field-weakening control of permanent magnet synchronous motors (PMSMs). Although the maximum output voltage can reach the… read more here.
Keywords: field weakening; weakening control; voltage; overmodulation ... See more keywords
Computationally Efficient Overmodulation Methods for Synchronous Motor Drive Systems
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Industrial Informatics"
DOI: 10.1109/tii.2022.3207773
Abstract: This article presents two computationally efficient methods for selecting the optimal modulated voltage that can achieve superior dynamic performance for surface-mounted permanent magnet synchronous motors (SPMSMs). Specifically, when an SPMSM suffers a large reference or… read more here.
Keywords: computationally efficient; overmodulation; voltage; motor ... See more keywords
Overmodulation Methods for Modulated Model Predictive Control and Space Vector Modulation
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Power Electronics"
DOI: 10.1109/tpel.2020.3023927
Abstract: A two-level voltage source inverter (2L-VSI) when working under overmodulation regulation potentially has low performance, especially during large reference or load changes. To address this problem, a new calculation method is proposed in this article… read more here.
Keywords: modulated model; overmodulation; predictive control; modulation ... See more keywords
Increasing the Utilization Factor of an Autonomous Inverter under Space Vector Control
Sign Up to like & getrecommendations! Published in 2020 at "Russian Electrical Engineering"
DOI: 10.3103/s1068371220040082
Abstract: Abstract Control systems for ac electric drive frequency converters are based on pulse width modulation (PWM) algorithms. Their use leads to problems: significant output voltage and current distortion, the appearance of shaft torque pulsation and… read more here.
Keywords: utilization factor; space vector; overmodulation; autonomous inverter ... See more keywords