An AC Voltage Sensor-less Control Strategy for Ocean Ship Photovoltaic Grid-connected Inverter with LCL Filter

Che, Yanbo; Xue, Siyuan; Wang, Dianmeng

doi:10.2112/si83-018.1

Cited by 1 publication

(2 citation statements)

References 14 publications

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“…Today, inverters are widely used in ships, carbon-free energy generation, transportation, motor drives, and other fields [3][4][5][6][7][8]. A high-boost Z-source inverter is proposed in an inland river cruise ship supplied by a fuel cell (FC) as the main power source and a supercapacitor (SC) as the auxiliary power source [3].…”

Section: Introductionmentioning

confidence: 99%

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A Fault-Tolerant Control Method Based on Reconfiguration SPWM Signal for Cascaded Multilevel IGBT-Based Propulsion in Electric Ships

Zhang,

Zhang

et al. 2024

JMSE

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Electric ships have been developed in recent years to reduce greenhouse gas emissions. In this system, inverters are the key equipment for the permanent-magnet synchronous motor (PMSM) drive system. The cascaded insulated-gated bipolar transistor (IGBT)-based H-bridge inverter is one of the most attractive multilevel topologies for modern electric ship applications. Usually, the fault-tolerant control strategy is designed to keep the ship in operation for a certain period. However, the fault-tolerant control strategy with hardware redundancy is expensive and slow in response. In addition, after fault-tolerant control, the ship’s PMSM may experience shock and overheating, and IGBT life is reduced due to uneven switching frequency distribution. Therefore, a stratified reconfiguration carrier disposition Sinusoidal Pulse Width Modulation (SPWM) fault-tolerant control strategy is proposed. The proposed strategy can achieve fault tolerance without any extra hardware. A reconfiguration carrier is applied to improve the fundamental amplitude of inverter output voltage to maintain the operation of the ship’s PMSM. In addition, the available states of faulty H-bridge are fully used to contribute to the output. These can improve the life of IGBTs by reducing and balancing the power loss of each H-bridge. The principles of the proposed strategy are described in detail in this study. Taking a cascaded H-bridge seven-level inverter as an example, simulation and experimental results verify that the proposed strategy, in general, has a potential future application on electric ships.

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Section: Introductionmentioning

confidence: 99%

“…A control power module for hybrid inverter systems is implemented to drive electric propulsion ships [5]. Inverters can also be applied in marine photovoltaic on/off-grid systems [7,8].…”

Section: Introductionmentioning

confidence: 99%

A Fault-Tolerant Control Method Based on Reconfiguration SPWM Signal for Cascaded Multilevel IGBT-Based Propulsion in Electric Ships

Zhang,

Zhang

et al. 2024

JMSE

View full text Add to dashboard Cite

show abstract

An AC Voltage Sensor-less Control Strategy for Ocean Ship Photovoltaic Grid-connected Inverter with LCL Filter

Cited by 1 publication

References 14 publications

A Fault-Tolerant Control Method Based on Reconfiguration SPWM Signal for Cascaded Multilevel IGBT-Based Propulsion in Electric Ships

A Fault-Tolerant Control Method Based on Reconfiguration SPWM Signal for Cascaded Multilevel IGBT-Based Propulsion in Electric Ships

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