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| 1 | Smart Transformer-based Medium Voltage Grid Support by Means of Active Power Control显示文摘In the last decades the voltage regulation has been challenged by the increase of power variability in the electric grid,due to the spread of non-dispatchable generation sources.This paper introduces a Smart Transformer(ST)-based Medium Voltage(MV)grid support by means of active power control in the ST-fed Low Voltage(LV)grid.The aim of the proposed strategy is to improve the voltage profile in MV grids before the operation of On-Load Tap Changer in the primary substation transformer,which needs tens of seconds.This is realized through reactive power injection by the AC/DC MV converter and simultaneous decrease of the active power consumption of voltage-dependent loads in ST-fed LV grid,controlling the ST output voltage.The last feature has two main effects:the first is to reduce the active power withdrawn from MV grid,and consequently the MV voltage drop caused by the active current component.At the same time,higher reactive power injection capability in the MV converter is unlocked,due to the lower active power demand.As result,the ST increases the voltage support in MV grid.The analysis and simulation results carried out in this paper show improvements compared to similar solutions,i.e.the only reactive power compensation.The impact of the proposed solution has been finally evaluated under different voltage-dependence of the loads in the LV grid. | Stefano Giacomuzzi Marius Langwasser Giovanni De Carne Giuseppe Buja Marco Liserre | 2020 | CES Transactions on Electrical Machines and Systems2020，4，4： | 5 |
| 2 | Active Thermal Control for Delaying Maintenance of Power Electronics Converters显示文摘Several studies have reported about power semiconductors and capacitors being the most sensitive components in power converters.The lifetime of these devices is associated with the mission profile and the resulting temperature profile.For preventing failures,it is of interest to estimate the Remaining Useful Lifetime(RUL)and several condition monitoring methods have been proposed for this purpose.Moreover,modular power converters consist of a high number of components and methods have been proposed to reduce the thermal stress and therefore extend the lifetime of a system with software,referred to as active thermal control.For power converters with limited accessibility,the RUL detected by the condition monitoring system may not fit to the scheduled maintenance of the system and devices may still have a significant RUL when their replacement is scheduled.Therefore,this work proposes to control the stress of the most deteriorated components in the system such that the failure probability of multiple building blocks is equalized when the next maintenance is scheduled.Moreover,this concept is proposed to extend the time to the next maintenance and reduce the number of maintenance instances without affecting the mean lifetime of the system. | Markus Andresen Johannes Kuprat Vivek Raveendran Johannes Falck Marco Liserre | 2018 | Chinese Journal of Electrical Engineering2018，4，3： | 4 |
| 3 | Smart Transformer/Large Flexible Transformer显示文摘Solid-state transformer-based smart transformer(ST)can provide the dc connectivity and advanced services to improve the grid performance and to increase the penetration of the power electronics interfaced resources(e.g.,distributed generators and electric vehicle charging stations)in modern electricity distribution grids.Since the ST is a new and effective paradigm of the electricity grid evolution to well understand the ST,this paper systematically presents the basic architecture and the typical control schemes of the ST and then the advanced services that ST can provide to improve the electricity grids performances in terms of the power flow control,power quality improvement,active damping and active contribution to improve distribution grid resilience by means of enabling autonomous microgrids operation as well as launching a restoration procedure following a general blackout. | Rongwu Zhu Markus Andresen Marius Langwasser Marco Liserre Joao Pecas Lopes Carlos Moreira Justino Rodrigues Mario Couto | 2020 | CES Transactions on Electrical Machines and Systems2020，4，4： | 3 |
| 4 | Stability improvements of an LCL-filter based three-phase active rectifier显示文摘 | Liserre M Dell'Aquila A Blaabjerg F | 2002 | Proceedngs of PESC2002，，3： | 1 |
| 5 | Design of H bridge multilevel active rectifier for traction systerns显示文摘 | Cecati C Dell'Aquila A Liserre M | 2003 | IEEE Trans- actions on Industry Applications2003，39，5： | 1 |
| 6 | Islanding detection method for single-phase distributed generation systems based on in- verters显示文摘 | LISERRE M PIGAZO A AQUILA A D | 2005 | IEEE2005，25，： | 1 |
| 7 | Evaluation of three-phase transformerless photovohaie inverter topologies显示文摘 | Kerekes T Liserre M Teodorescu R | 2009 | IEEE Transactions on Power Electronics2009，24，9： | 1 |
| 8 | Design and control of an LCL-filter based three-phase active rectifier显示文摘 | Liserre M Blaabjerg F Hansen S | 2005 | IEEE Transac- tions on Industry Applications2005，41，5： | 1 |
| 9 | Overview of control and grid synchronization for distributed power generation systems显示文摘 | Blaabjerg F Teodorescu R Liserre M | 2006 | IEEE Transactions on Industrial Electronics2006，53，5： | 1 |
| 10 | Evaluation of current controllers for distributed power generation systems显示文摘 | Timbus A Liserre M Teodorescu R | 2009 | IEEE Transactions on Power Electronics2009，24，3： | 1 |
| 11 | Overview of control and grid synchronization for distributed power generation systems显示文摘 | Frede Blaabjerg Remus Teodorescu Marco Liserre | 2006 | IEEE Transactions on Industry Electronics2006，53，5： | 1 |
| 12 | Overview of control and grid synchron systems ization for distributed power generation 显示文摘 | Frede Blaabjerg Remus Teodorescu Marco Liserre | 2006 | IEEE Transactions on Industrial Electronics2006，53，5： | 1 |
| 13 | Power electronics converters for wind turbine systems显示文摘 | Blaabjerg F Liserre M Ma Ke | 2012 | IEEE Transactions on Industry Applications2012，48，2： | 1 |
| 14 | Proportional-resonant controllers and filters for grid-connected voltage-source converters显示文摘 | Teodorescu R Blaabjerg F Liserre M | 2006 | IET Electric Power Applications2006，153，5： | 1 |
| 15 | Overview of control and grid synchronization for distributed power generation systems显示文摘 | Blaabjerg F Teodorescu R Liserre M | 2006 | IEEE Transactions on Industrial Electronics2006，53，5： | 1 |
| 16 | Evaluation of three-phase transformerless photovoltaic inverter topologies显示文摘 | Kerekes T Liserre M Teodorescu R | 2009 | IEEE Transactions on Power Electronics2009，24，9： | 1 |
| 17 | A stable three-phase LCL-filter based active rectifier withoutdamping显示文摘 | Liserre M Blaabjerg F Chiarantoni E | 2003 | IAS Annual Meeting IEEE Industry Applications Society2003，3，： | 1 |
| 18 | Genetic algorithm-based design of the active damping for an LCL-filter three-phase active rectifier显示文摘 | Liserre M Dell'Aquila A Blaabjerg F | 2004 | IEEE Transactions on Industry Applications2004，19，1： | 1 |
| 19 | Overview of control and grid synchronization for distributed power generation systems显示文摘 | Blaabjerg F Teodorescuk R Liserre M | 2006 | IEEE Transactions Industrial Electronics2006，53，5： | 1 |
| 20 | Design and control of an LCL-filter-based three-phase active rectifier显示文摘 | Liserre M Blaabjerg F Hansen S | 2005 | IEEE Transactions on Industry Applications2005，41，5： | 1 |
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