Control of the hybrid modular multilevel converter in motor drive applications

Zhou, Shaoze; Guan, Mingxu; Li, Binbin; Zhou, Shaocong; Xu, Dianguo

doi:10.1109/apec.2017.7930765

Cited by 9 publications

(2 citation statements)

References 13 publications

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“…The "modulator and cellbalancing" block serves as a link here on its own. It creates the pulse patterns (gpxj, gnxj) for the cell switches [33], [34] define a feasible approach that involves cell balancing. The energy in the arms has been represented by the total amount of the VC of each arm (uCpy and uCny).…”

Section: Motor Control With the MMCmentioning

confidence: 99%

An ingenious MMC topology appropriate for motor drives across their entire frequency spectrum

Patil¹,

Thakre

Sonawane

et al. 2023

Bulletin EEI

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Modular multilevel converter (MMC) modules have popped up as among the best choices for medium and high-powered uses. This paper proposes a control scheme for the entire frequency range of operation for the MMC, focusing on supplying a three-phase machine. The machine is required to be controlled in the outer as well as the inner loop. Standard field oriented control (FOC) manages the three-phase machine in the outer closed loop while the inner control has to come up against the problem of energy balancing. That is unevenly distributed and stored in the capacitance of the upper and lower arms of the converter. There are two operating methods used in the inner control loop: a low-frequency method is used for start-up and low-speed operation, and a high-frequency method is for higher speed. In low-frequency mode (LF-mode), a special control strategy has to be implemented to minimize the energy oscillation in the capacitances of the converter arms. It makes utilization of the 3-phase machine's common mode voltage (Vc) as well as internal circulatory currents to verify a symmetrical energy distribution inside this MMC arms and also to avert whatever AC currents inside the DC source.

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Section: Motor Control With the MMCmentioning

confidence: 99%

An ingenious MMC topology appropriate for motor drives across their entire frequency spectrum

Patil¹,

Thakre

Sonawane

et al. 2023

Bulletin EEI

View full text Add to dashboard Cite

show abstract

“…The conventional two-level inverter is replaced by the multilevel inverter which can operate at higher efficiency, lower dv/dt and reduced harmonic distortion. Moreover, the voltage stress across the power switches is half of the DC-link voltage which increases the lifetime of the power converter and the motor (Gan et al , 2019; Beshta et al , 2019; Toliyat and Gopalarathnam, 2002; Peralta-Sanchez et al , 2009; Zhou et al , 2017; Li et al , 2019; Rahman et al , 1993).…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of two-level and three-level multilevel inverter for electric vehicle application using BLDC motor drive

Ammaiyappan

Ramalingam²

2021

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Purpose The conventional two-level inverter suffers from harmonics, higher direct current (DC) link voltage requirement, higher dv/dt and heating of the rotor. This study aims to overcome by using a multilevel inverter for brushless DC (BLDC) drive. Design/methodology/approach This paper presents a comparative analysis of the conventional two-level and three-level multilevel inverter for electric vehicle (EV) application using BLDC drive. Findings A three-level Active Neutral Point Clamped Multilevel inverter (ANPCMLI) is proposed in this paper which provides DC link voltage control. Simulation studies of the multilevel inverter and BLDC motor is carried out in MATLAB. Originality/value The ANPCMLI fed BLDC simulation results shows that there is the significant reduction in the BLDC motor torque ripple, switching stress and harmonic distortion in the BLDC motor fed ANPCMLI compared to the conventional two-level inverter. A prototype of ANPCMLI fed BLDC drive along with field programmable gate array (FPGA) control is built and MATLAB simulation results are verified experimentally.

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Research of modular multilevel converter with phase-shifted pulse-width modulation

Kozakevych

Siyanko

2021

E3S Web Conf.

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The work is devoted to the study of performance of a multilevel electric energy converter using phase-shifted pulse-width modulation. Equations describing the state of a dynamic system multilevel converter - load are investigated and a mathematical model of the system in Matlab / Simulink environment has been constructed. Variants of implementation of phase-shifted pulse-width modulation systems from the point of view of influence on harmonics of output voltage and magnitude of circulating current in the converter are investigated.

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Control of the hybrid modular multilevel converter in motor drive applications

Cited by 9 publications

References 13 publications

An ingenious MMC topology appropriate for motor drives across their entire frequency spectrum

An ingenious MMC topology appropriate for motor drives across their entire frequency spectrum

Comparative analysis of two-level and three-level multilevel inverter for electric vehicle application using BLDC motor drive

Research of modular multilevel converter with phase-shifted pulse-width modulation

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