Outputs (31)

Model Predictive Control of a Modular Multilevel Converter with Reduced Computational Burden (2024)
Journal Article

Recent advances in high-power applications employing voltage source converters have been primarily fuelled by the emergence of the modular multilevel converter (MMC) and its derivatives. Model predictive control (MPC) has emerged as an effective way... Read More about Model Predictive Control of a Modular Multilevel Converter with Reduced Computational Burden.

Design and Analysis of Reconfigurable Resonant Converter with Ultra Wide Output Voltage Range (2024)
Journal Article

In this article, a reconfigurable isolated dc/dc converter is proposed suitable for a wide output voltage range of 180–1500 V for efficient onshore charging in maritime applications. The proposed circuit concept can also fulfill the requirements of o... Read More about Design and Analysis of Reconfigurable Resonant Converter with Ultra Wide Output Voltage Range.

A Survey on Multi-Active Bridge DC-DC Converters: Power Flow Decoupling Techniques, Applications, and Challenges (2023)
Journal Article

Multi-port DC-DC converters are a promising solution for a wide range of applications involving multiple DC sources, storage elements, and loads. Multi-active bridge (MAB) converters have attracted the interest of researchers over the past two decade... Read More about A Survey on Multi-Active Bridge DC-DC Converters: Power Flow Decoupling Techniques, Applications, and Challenges.

Powering Maritime: Challenges and prospects in ship electrification (2023)
Journal Article

The exponential increase in Global greenhouse gas (GHG) emissions and the rapid depletion of fossil fuels over the past few decades have swayed the transportation sector toward becoming more electric. In the last decade, with continuous improvements... Read More about Powering Maritime: Challenges and prospects in ship electrification.

A Class-E-Based Multichannel Auxiliary Power Supply with Individual Hysteresis Control (2023)
Journal Article

A high performance auxiliary power supply (APS) with multiple isolated outputs plays a crucial role in ensuring the effective operation of power converter systems. An isolated resonant current source converter is usually adopted as the APS in medium-... Read More about A Class-E-Based Multichannel Auxiliary Power Supply with Individual Hysteresis Control.

Reinforcement Learning-Based Method to Exploit Vulnerabilities of False Data Injection Attack Detectors in Modular Multilevel Converters (2023)
Journal Article

Implementing control schemes for modular multilevel converters (M2Cs) involves both a cyber and a physical level, leading to a cyber-physical system (CPS). At the cyber level, a communication network enables the data exchange between sensors, control... Read More about Reinforcement Learning-Based Method to Exploit Vulnerabilities of False Data Injection Attack Detectors in Modular Multilevel Converters.

A Comprehensive Review of Machine-Integrated Electric Vehicle Chargers (2022)
Journal Article

Electric Vehicles are becoming increasingly popular due to their environment friendly operation. As the demand for electric vehicles increases, it has become quite important to explore their charging strategies. Since charging and traction do not nor... Read More about A Comprehensive Review of Machine-Integrated Electric Vehicle Chargers.

A Switched Mid-Point Modular Multilevel Converter for HVDC Applications (2022)
Journal Article

The modular multilevel converter (MMC) has emerged as the industry standard for voltage source converters (VSC) based high voltage direct-current (HVDC) applications since its benefits of scalability, modularity, high efficiency and better output qua... Read More about A Switched Mid-Point Modular Multilevel Converter for HVDC Applications.

FEA Based Transformer Loss Analysis for Dual Active Bridge DC-DC Converter using Triple Phase Shift Modulation (2022)
Journal Article

High frequency transformers are a key component of dual active bridge (DAB) dc-dc converters, providing isolation and voltage scaling. The losses in the transformer should be minimized to improve efficiency and extend lifetime. The existing research... Read More about FEA Based Transformer Loss Analysis for Dual Active Bridge DC-DC Converter using Triple Phase Shift Modulation.

Model Predictive Control with Triple Phase Shift Modulation for a Dual Active Bridge DC-DC Converter (2021)
Journal Article

A fast dynamic response is one of the key demands for the dual active bridge (DAB) dc-dc converter to achieve a well-regulated output voltage over a wide range of operating conditions. Recently, model predictive control (MPC) has become a promising a... Read More about Model Predictive Control with Triple Phase Shift Modulation for a Dual Active Bridge DC-DC Converter.

Circulating Current Control for the Modular Multilevel Matrix Converter Based on Model Predictive Control (2021)
Journal Article

In this work, a Continuous-Control-Set Model Predictive Control (CCS-MPC) strategy, with a saturation scheme for protection, is presented for regulating the circulating currents of a Modular Multilevel Matrix Converter (M3C). The proposed scheme is b... Read More about Circulating Current Control for the Modular Multilevel Matrix Converter Based on Model Predictive Control.

Experimental Validation of a Nested Control System to Balance the Cell Capacitor Voltages in Hybrid MMCs (2021)
Journal Article

© 2013 IEEE. In a hybrid modular multilevel converter (MMC), capacitor voltage balance between the Full-Bridge Sub-Modules (FBSMs) and Half-Bridge Sub-Modules (HBSMs) is only possible when the arm currents are bipolar. For a grid-connected MMC, opera... Read More about Experimental Validation of a Nested Control System to Balance the Cell Capacitor Voltages in Hybrid MMCs.

Single-phase consensus-based control for regulating voltage and sharing unbalanced currents in 3-wire isolated AC microgrids (2020)
Journal Article

A distributed control strategy is proposed to share unbalanced currents in three-phase threewire isolated AC Microgrids (MGs). It is based on a novel approach where, rather than analysing the MG as a three-phase system, it is analysed as three single... Read More about Single-phase consensus-based control for regulating voltage and sharing unbalanced currents in 3-wire isolated AC microgrids.

Asymmetrical Triangular Current Mode (ATCM) for Bidirectional High Step Ratio Modular Multilevel Dc–Dc Converter (2019)
Journal Article

Direct current (Dc) networks have proven advantages in high voltage direct current (HVDC) transmission systems, and now they are expanding to medium- and low-voltage distribution networks. One of the major challenges is to develop reliable dc-dc volt... Read More about Asymmetrical Triangular Current Mode (ATCM) for Bidirectional High Step Ratio Modular Multilevel Dc–Dc Converter.

A Fast Diagnosis Method for Both IGBT Faults and Current Sensor Faults in Grid-Tied Three-Phase Inverters With Two Current Sensors (2019)
Journal Article

© 1986-2012 IEEE. This article considers fault detection in the case of a three-phase three-wire (3P3W) inverter, when only two current sensors are used to save cost or due to a faulty current sensor. With two current sensors, there is no current met... Read More about A Fast Diagnosis Method for Both IGBT Faults and Current Sensor Faults in Grid-Tied Three-Phase Inverters With Two Current Sensors.

MMC front-end for klystron modulators: an augmented modulation scheme for arm balancing (2018)
Journal Article

This paper discusses the control of a Modular Multilevel Converter (MMC) used as a grid-interface for the klystron modulators in the Compact Linear Collider (CLIC). The converter has a DC side load which takes short-duration power pulses, causing hig... Read More about MMC front-end for klystron modulators: an augmented modulation scheme for arm balancing.

The Alternate Arm Converter (AAC) - "short-overlap" mode operation - analysis and design parameter selection (2017)
Journal Article

This paper presents converter operation principles and theoretical analyses for “short-overlap” mode operation of the Alternate Arm Converter (AAC), which is a type of modular multilevel Voltage Source Converter (VSC) that has been proposed for HVDC... Read More about The Alternate Arm Converter (AAC) - "short-overlap" mode operation - analysis and design parameter selection.

Arm-Balancing Control and Experimental Validation of a Grid-Connected MMC With Pulsed DC Load (2017)
Journal Article

This paper focuses on the operation of a grid connected Modular Multilevel Converter (MMC) supplying a pulsed DC load. The goal is to achieve minimum AC power fluctuation despite the high power fluctuation present on the DC side. The MMC has been sel... Read More about Arm-Balancing Control and Experimental Validation of a Grid-Connected MMC With Pulsed DC Load.

Semiconductor devices in solid-state/hybrid circuit breakers: current status and future trends (2017)
Journal Article

Circuit breakers (CBs) are the main protection devices for both alternating current (AC) and direct current (DC) power systems, ranging from tens of watts up to megawatts. This paper reviews the current status for solid-state circuit breakers (SSCBs)... Read More about Semiconductor devices in solid-state/hybrid circuit breakers: current status and future trends.

Operation of a hybrid modular multilevel converter during grid voltage unbalance (2016)
Journal Article

© The Institution of Engineering and Technology. The recently proposed parallel hybrid modular multilevel converter is considered to be a low loss, low component count converter with soft switching capability of the 'main' H-bridge. The converter has... Read More about Operation of a hybrid modular multilevel converter during grid voltage unbalance.

Hybrid HVDC circuit breaker with self-powered gate drives (2016)
Journal Article

The ever increasing electric power demand and the advent of renewable energy sources have revived the interest in high-voltage direct current (HVDC) multi-terminal networks. However, the absence of a suitable circuit breaker or fault tolerant VSC st... Read More about Hybrid HVDC circuit breaker with self-powered gate drives.

The pharmacokinetics and toxicity of morning vs. evening tobramycin dosing for pulmonary exacerbations of cystic fibrosis: A randomised comparison (2015)
Journal Article

Background: Circadian variation in renal toxicity of aminoglycosides has been demonstrated in animal and human studies. People with CF are frequently prescribed aminoglycosides. Altered pharmacokinetics of aminoglycosides are predictive of toxicity.... Read More about The pharmacokinetics and toxicity of morning vs. evening tobramycin dosing for pulmonary exacerbations of cystic fibrosis: A randomised comparison.

Robustness analysis and experimental validation of a fault detection and isolation method for the modular multilevel converter (2015)
Journal Article

This paper presents a fault detection and isolation (FDI) method for open-circuit faults of power semiconductor devices in a modular multilevel converter (MMC). The proposed FDI method is simple with only one sliding mode observer (SMO) equation and... Read More about Robustness analysis and experimental validation of a fault detection and isolation method for the modular multilevel converter.

Multi-objective modulated Model Predictive Control for a multilevel solid state transformer (2015)
Journal Article

Finite Control Set Model Predictive Control (FCS-MPC) offers many advantages over more traditional control techniques, such as the ability to avoid cascaded control loops, easy inclusion of constraint and fast transient response of the control system... Read More about Multi-objective modulated Model Predictive Control for a multilevel solid state transformer.

Modulated Model Predictive Control for a Three-Phase Active Rectifier (2014)
Journal Article

Model predictive control (MPC) has a number of desirable attributes which are difficult to achieve with classical converter control techniques. Unfortunately, the nature of power electronics imposes restriction to the method, as a result of the limit... Read More about Modulated Model Predictive Control for a Three-Phase Active Rectifier.

Active DC voltage balancing PWM technique for high-power cascaded multilevel converters (2014)
Journal Article

In this paper a dedicated PWM technique specifically designed for single-phase (or four wire three-phase) multilevel Cascaded H-Bridge Converters is presented. The aim of the proposed technique is to minimize the DC-Link voltage unbalance, independen... Read More about Active DC voltage balancing PWM technique for high-power cascaded multilevel converters.

DC fault ride-through capability and STATCOM operation of a HVDC hybrid voltage source converter (2014)
Journal Article

HVDC transmission systems are becoming increasingly popular when compared to conventional AC transmission methods. HVDC voltage source converters (VSC) can offer advantages over traditional HVDC current source converter topologies; as such, it is exp... Read More about DC fault ride-through capability and STATCOM operation of a HVDC hybrid voltage source converter.

Modulated model predictive control for a 7-level cascaded h-bridge back-to-back converter (2014)
Journal Article

Multilevel Converters are known to have many advantages for electricity network applications. In particular Cascaded H-Bridge Converters are attractive because of their inherent modularity and scalability. Predictive control for power converters is a... Read More about Modulated model predictive control for a 7-level cascaded h-bridge back-to-back converter.

Fault detection for modular multilevel converters based on sliding mode observer (2013)
Journal Article

This letter presents a fault detection method for modular multilevel converters (MMC) which is capable of lo¬cating a faulty semiconductor switching device in the circuit. The proposed fault detection method is based on a sliding mode observer (SMO)... Read More about Fault detection for modular multilevel converters based on sliding mode observer.

Optimization of switching losses and capacitor voltage ripple using model predictive control of a cascaded H-bridge multi-level StatCom (2012)
Journal Article

This paper further develops a Model Predictive Control (MPC) scheme which is able to exploit the large number of redundant switching states available in a multi-level H-bridge StatCom (H-StatCom). The new sections of the scheme provide optimised meth... Read More about Optimization of switching losses and capacitor voltage ripple using model predictive control of a cascaded H-bridge multi-level StatCom.

Space-vector-modulated three-level inverters with a single Z-source network (2012)
Journal Article

The Z-source inverter is a relatively recent converter topology that exhibits both voltage-buck and voltage-boost capability. The Z-source concept can be applied to all dc-to-ac, ac-to-dc, ac-to-ac, and dc-to-dc power conversion whether two-level or... Read More about Space-vector-modulated three-level inverters with a single Z-source network.