A Novel 3D Thermal Impedance Model for High Power Modules Considering Multi-Layer Thermal Coupling and Different Heating/Cooling Conditions
Amir Sajjad Bahman ; Ke Ma ; Frede Blaabjerg
Power IGBT module
,
thermal impedance
,
thermal management
,
FEM
Since power IGBT modules play an important role in renewable energy systems like wind turbine, many researches are focused on design of more…
A Novel Modulation Scheme and Voltage Balancing Algorithm for Modular Multilevel Converter
Apparao Dekka ; Bin Wu ; Navid R. Zargari
Three-Level Flying Capacitor Submodules
,
Modular Multilevel Converter
,
Modulation Scheme
,
Voltage Balancing
This paper describes a novel modulation scheme and the voltage balancing algorithm for modular multilevel converter (MMC). In the present…
Design of an Efficient Multilevel Inverter for a 1500V Railway Propulsion System Applications
Mohamed Z. Youssef ; Mohamed Orabi ; Mohammed Tarbouchi
Transprotation
,
Rail
,
Traction Converters
This paper presents a new trend in the transportation industry to adopt the multilevel inverter-based propulsion systems and gives the…
Discrete-Time Modeling and Stability Analysis of Grid-Connected Inverter based on Equivalent Circuit
Xuanlyu Wu ; Guochun Xiao ; Yong Lu ; Fengwen Chen ; Dapeng Lu
Digital control
,
Discrete-time modeling
,
Bifurcation
This paper presents a simplified discrete-time modeling and stability analysis method for digital controlled grid-connected inverters. Based on…
Influence of Voltage Feed-Forward Control on Small-Signal Stability of Grid-Tied Inverters
Xuan Zhang ; Fred Wang ; Wenchao Cao ; Yiwei Ma
voltage feed forward
,
PLL
,
grid-tied inverter
,
small-signal stability
In balanced three-phase systems, source impedance and load admittance matrices in the synchronous rotating (d-q) frame can be used to…
Range and Misalignment Tolerance Comparisons between Two-Coil and Four-Coil Wireless Power Transfer Systems
Zhigang Dang ; Jaber A. Abu Qahouq
Model
,
3D model
,
Physical Model
,
Wireless power
Two-coil and four-coil magnetic resonance coupled wireless power transfer (MRC-WPT) system configurations are analyzed and compared in this…
Stabilization of Multiple Unstable Modes for Small-Scale Inverter-based Power Systems with Impedance-based Stability Analysis
Changwoo Yoon ; Xiongfei Wang ; Claus Leth Bak ; Frede Blaabjerg
Stability
,
Impedance-based analysis
,
Distributed network
When the components are merged into the power system, it is not easy to find the stable case because of the additional parameters of the…
