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Now showing items 21-30 of 31
New voltage regulation techniques for low voltage radial feed PWM inverter based distributed networks
(2010 , Conference Paper)
Grid voltage rise problems occur, especially at light loads, due to the proliferation of distributed generation. Two techniques are proposed for regulating the voltage in low voltage radial networks when inverter based ...
A modified stationary reference frame-based predictive current control with zero steady-state error for LCL coupled inverter-based distributed generation systems
(
IEEE
, 2011 , Article)
This paper proposes a modified stationary reference frame-based predictive current controller with zero steady-state error for LCL coupled inverter-based distribution generation systems. Analytical expressions for the ...
Modular multilevel structure of a high power dual active bridge DC transformer with stepped two-level output
(
Institute of Electrical and Electronics Engineers Inc.
, 2014 , Conference Paper)
This paper addresses the issues of dc voltage matching and dc fault protection in potential super-grids. An approach for high power dc-dc conversion is proposed and analyzed. A front-to-front connection of modular-multilevel ...
A synchronous DQ frame controller via an LCL coupled filter under unbalanced three-phase voltage supply conditions
(
IEEE
, 2011 , Conference Paper)
This paper proposes a synchronous DQ frame current controller for inverter based interfaced systems. The grid voltage may be unbalanced, possibly due to unequal line impedance. The output active and reactive powers oscillate ...
DC-link capacitor voltage balancing for a five-level diode-clamped active power filter using redundant vectors
(2013 , Article)
This paper investigates the compensation and modulation processes of the five- level diode-clamped active power filter, compensating a three-phase rectified resistor-inductor load with redundant vectors. From the analysis, ...
A single-stage three-phase DC/AC inverter based on Cuk converter for PV application
(
IEEE
, 2013 , Conference Paper)
This paper presents a new three-phase dc-ac inverter based on the basic Cuk converter. The main feature of the proposed topology is the fact that the energy storage elements as inductors and capacitors values can be reduced ...
Switched mode power supplies for charge-up, discharge and balancing dc-link capacitors of diode-clamped five-level inverter
(
IET
, 2010 , Article)
Inductor switch mode power supplies (SMPS) operated in a discontinuous inductor current mode are used to balance the dc-link capacitor voltages of a diode-clamped five-level inverter. The SMPS concept is extended to charge ...
Multiloop control strategy for grid-interfaced three-phase voltage source inverter with passively damped LLCL-filter
(
Institution of Engineering and Technology
, 2014 , Conference Paper)
In inverter-based distributed generation (IBDG) and similar to the conventional third order LCL filter, the high order LLCL filter is difficult to stabilize, and may cause a resonance between the inverter and the grid. ...
Performance assessment of L-2LC-L filter (double LC trap)-based grid-connected three-phase voltage source inverter
(
IEEE
, 2018 , Conference Paper)
Inverter-Based Distributed Generation (IBDG) units are typically coupled to the grid via three-phase Voltage Source Converters (VSCs). The IBDGs may pollute utility with the injected harmonic currents. In order to meet the ...
A Modular Multilevel Converter with Integrated Shared Capacitor Sub-Module for MV Motor Drives Incorporating Symmetrical Six-Phase Machines
(
Institute of Electrical and Electronics Engineers Inc.
, 2018 , Conference Paper)
This paper proposes a new modular multilevel converter (MMC) configuration as a medium-voltage drive for variable-speed applications incorporating symmetrical six-phase machines. The proposed topology employs six MMC ...