All Outputs (31)

A Parallel Connected Unfolding Bridge (PCUB) Multilevel Converter for HVDC Applications (2019)
Conference Proceeding

© 2019 IEEE. Hybrid Voltage Source Converters (VSC), that combine the conventional three-level VSCs and Modular Multilevel Chain-Links (CLs), offer a promising solution for future HVDC stations, achieving reduced footprint with respect to the MMC whi... Read More about A Parallel Connected Unfolding Bridge (PCUB) Multilevel Converter for HVDC Applications.

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.

A Nonintrusive IGBT Open-Circuit Fault and Current Sensor Fault Diagnosis Method for Grid-Tied Three-phase Three-Wire Inverter with Two Current Sensors (2019)
Conference Proceeding

© 2019 IEEE. In some cases, only two current sensors are available in three-phase three-wire (3P3W) inverters. This occurs when one of three sensors is faulty, or the inverter is equipped with only two sensors to save cost. There has been no method a... Read More about A Nonintrusive IGBT Open-Circuit Fault and Current Sensor Fault Diagnosis Method for Grid-Tied Three-phase Three-Wire Inverter 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.

Design considerations for a high-power dual active bridge DC-DC converter with galvanically isolated transformer (2017)
Conference Proceeding

Multi-megawatt scale isolated DC-DC converters are likely to become increasingly popular as means to interconnect the MVDC grids of different voltage levels. Three-phase dual active bridge DC-DC (3DAB) converters operating with the zero-voltage switc... Read More about Design considerations for a high-power dual active bridge DC-DC converter with galvanically isolated transformer.

Geometry optimization and characterization of three-phase medium frequency transformer for 10kVA isolated DC-DC converter (2017)
Conference Proceeding

Three-phase Dual Active Bridge converter is advisable for the High-power DC-DC conversion system. In the ac link, galvanically isolated transformer operated at a medium frequency range provides stepping up or down of the secondary bridge voltage.... Read More about Geometry optimization and characterization of three-phase medium frequency transformer for 10kVA isolated DC-DC converter.

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.

Quasi Z-source NPC inverter for PV application (2017)
Conference Proceeding

This paper presents the operating principles and modified space vector modulation strategy for a three-phase quasi Z-source neutral point clamped inverter for solar photovoltaic applications. This topology combines the advantages of the neutral point... Read More about Quasi Z-source NPC inverter for PV application.

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.

A novel multi-modular series HVDC tap (2017)
Conference Proceeding

Tapping energy from a HVDC transmission line to serve small remote communities has been considered by researchers and HVDC manufacturers since the 1960s. Many HVDC taps proposed consider the performance of diodes, Thyristors and GTOs and the utilizat... Read More about A novel multi-modular series HVDC tap.

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.

Control of a modular multilevel converter with pulsed DC load (2016)
Conference Proceeding

This paper focuses on a Modular Multilevel Converter grid interface for a klystron modulator system that behaves as a pulsed DC load. With such a load, and without mitigating control, the MMC suffers from cell capacitor voltage imbalance between the... Read More about Control of a modular multilevel converter with pulsed DC load.

Submodule power losses balancing algorithms for the modular multilevel converter (2016)
Conference Proceeding

Tolerance and component aging can cause significant differences in the capacitance values of the submodules (SMs) in a modular multilevel converter (MMC). Depending on the modulation technique, capacitance mismatches may produce uneven switching tran... Read More about Submodule power losses balancing algorithms for the modular multilevel converter.

The Series Bridge Converter (SBC): Design of a compact modular multilevel converter for grid applications (2016)
Conference Proceeding

This paper presents a novel hybrid modular multilevel voltage source converter suitable for grid applications. The proposed converter retains the advantages of other modular multilevel topologies and can be made more compact making it attractive for... Read More about The Series Bridge Converter (SBC): Design of a compact modular multilevel converter for grid applications.

The Series Bridge Converter (SBC): A hybrid modular multilevel converter for HVDC applications (2016)
Conference Proceeding

This paper presents a novel hybrid modular multilevel voltage source converter suitable for HVDC applications. It has the advantages of other modular multilevel topologies and can be made more compact making it attractive for offshore stations and ci... Read More about The Series Bridge Converter (SBC): A hybrid modular multilevel converter for HVDC applications.

A novel full soft-switching resonant power converter for mid-feeder voltage regulation of low voltage distribution network (2016)
Conference Proceeding

This paper presents a novel resonant based, high power density power electronics converter solution for mid-feeder voltage regulation of a low voltage (LV) distribution network. Owing to the use of high switching frequency operation and a full soft-s... Read More about A novel full soft-switching resonant power converter for mid-feeder voltage regulation of low voltage distribution network.

Design and implementation of magnetron power supply and emulator (2016)
Conference Proceeding

The paper presents a novel resonant based high performance power converter solution for industrial magnetron systems. Based the characteristics of the magnetron, an emulator prototype is also proposed to represent the magnetron load behaviour in a la... Read More about Design and implementation of magnetron power supply and emulator.

A high-power DC-DC converter based dual active bridge for MVDC grids on offshore wind farms (2016)
Conference Proceeding

This paper presents the steady-state analysis of a high power step-up DC-DC converter based three-phase dual active bridge (3DAB) for use as a medium voltage (MV) DC-DC collector of offshore wind farms. An optimization procedure for a high-power medi... Read More about A high-power DC-DC converter based dual active bridge for MVDC grids on offshore wind farms.

Novel current-limiting strategy for solid-state circuit breakers (SSCB) without additional impedance (2016)
Conference Proceeding

Current-limiting strategies for solid-state circuit breaker (SSCB) without adding impedance is introduced in this paper. With the current limitation of novel phase-shifting method, the advantages are simple hardware structure, relatively low cost, no... Read More about Novel current-limiting strategy for solid-state circuit breakers (SSCB) without additional impedance.

A survey on configurations of current-limiting circuit breakers (CL-CB) (2016)
Conference Proceeding

This paper presents a survey of topology configurations of current-limiting circuit breakers. Twelve different current-limiting topologies within four categories are detailed discussed and compared. It is concluded that active CL-CB may be a good cho... Read More about A survey on configurations of current-limiting circuit breakers (CL-CB).