Power Conversion With a Magnetically-Geared Permanent Magnet Generator for Low-Speed Wave Energy Converter

Hazra, Samir; Kamat, Prathamesh; Bhattacharya, Subhashish; Ouyang, Wen; Englebretson, Steven

doi:10.1109/tia.2020.2997640

Cited by 10 publications

(2 citation statements)

References 31 publications

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“…Recently, a magnetically-geared permanent magnet generator was proposed in [107] for low-speed WECs. This kind of generator consists of a stator, highspeed rotor (HSR), modulator, and a low-speed rotor (LSR).…”

Section: Pi Controllermentioning

confidence: 99%

Recent advances in wave energy conversion systems: From wave theory to devices and control strategies

et al. 2022

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Section: Pi Controllermentioning

confidence: 99%

Recent advances in wave energy conversion systems: From wave theory to devices and control strategies

et al. 2022

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“…However, even frequent maintenance does not guarantee a long lifetime of a mechanical gear, especially if the system is often exposed to high loads. In light of that, so-called magnetic gears (MGs) emerged as an interesting alternative whose application in electromechanical systems, for example industrial conveyors [1], electric vehicles [2] and wind [3] or ocean wave [4] energy conversion systems, has already been shown to be beneficial. Just like conventional mechanical gears, MGs can transmit power from the high-speed low-torque side to the low-speed high-torque side (or vice versa).…”

Section: Introductionmentioning

confidence: 99%

Reduced-Order Observer-Based Position Control of a Magnetic-Geared Servo Drive

Verbanac,

Jungmayr,

Marth

et al. 2023

Actuators

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Magnetic gears (MGs) emerged as an interesting alternative to conventional mechanical gears, owing mainly to their high torque densities and contactless operation. This paper presents a novel observer-based position control system for a magnetic-geared servo drive. The presented control system is based on two well established control strategies—field-oriented control (FOC) and state feedback control. The former is used to achieve effective torque control of a permanent magnet synchronous motor (PMSM) which is considered as an actuator that drives the high-speed rotor, whereas the latter is used to control the position of the low-speed rotor. A reduced-order extended state observer is used to estimate the position and speed of the low-speed rotor, thereby reducing the number of sensors required for the implementation of the controller. The whole control system is implemented on a microcontroller and tested on an existing prototype with a gear ratio of 18:1. The experimental results show that the presented control system guarantees precise positioning within a short amount of time and excellent disturbance rejection.

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A Novel Magnetic Gear Integrated Segmented Rotor SRM with Reduced Rare-Earth Material

Dey,

Fernandes,

Chatterjee

2024

2024 IEEE International Conference on Industrial Technology (ICIT)

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Power Conversion With a Magnetically-Geared Permanent Magnet Generator for Low-Speed Wave Energy Converter

Cited by 10 publications

References 31 publications

Recent advances in wave energy conversion systems: From wave theory to devices and control strategies

Recent advances in wave energy conversion systems: From wave theory to devices and control strategies

Reduced-Order Observer-Based Position Control of a Magnetic-Geared Servo Drive

A Novel Magnetic Gear Integrated Segmented Rotor SRM with Reduced Rare-Earth Material

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