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This paper presents a new method to improve the DC voltage response on the load change of a three-phase power converter space vector PWM with current regulator. The line current reference is generated from the load current referred to as control-side and the output of PI controller driven by DC voltage error. The load current estimation can be obtained by using the Luenberger observer. A simplified...
Different current source converter topologies for permanent magnet synchronous generator (PMSG) wind turbine applications are presented and analyzed in the paper. In high-power and medium-voltage range, current source converter has its natural advantages, such as simple topology, compact size, high power capability, excellent short circuit protection, and flexible power flow control. However, it also...
The FPGA device is an IC that can be programmable by software, to implement any logical function. Its inner architecture offers possibility to execute complex algorithms, even some parts running in parallel, improving law control dynamics. In consequence, the FPGA can control power electronics converters successfully. The several segments of the converter control are connected and synchronized by...
This paper presents a simulation work and control aspects of a Booster Dipole magnet power supply to a light source. Description of structure, operation of the structure and synchronous rectification Buck converter are discussed. Voltage and Current mode controllers for one-quadrant and two-quadrant converters are proposed. Better performance results with Split-Range technique are obtained. The converters...
The three-level neutral point clamped converter is one of the most important multilevel converters. Two important features of the neutral point clamped converter are the neutral point balance and the output voltage characteristics. Carrier and space vector Pulse-Width Modulation control methods efficiently manage the two issues. This paper analyses the voltage balancing problem and shows that a simple...
This paper proposes a multi-function control system for single-phase bidirectional PWM converters for renewable energy system applications. A common inner AC current-loop between the different modes helps to facilitate a seamless transition between them, where several individually designed outer loops alternatively perform the different regulation tasks, namely AC voltage, DC voltage, and DC current...
In this paper, we propose a current control methodology for the boost PFC converter based on sliding mode control theory. The resulting control is very general in the sense that it provides input current tracking under all practical conditions by systematically including all necessary control functions that compensate for the possible nonlinearity such as the zero-crossing distortion in high line...
This paper presents results of dissemination of a novel method of synchronized pulsewidth modulation (PWM) for control of symmetrical six-phase (dual three-phase) power conversion systems during overmodulation.
An analysis of the efficiency of AC/DC/AC diode-clamped multilevel converters is presented, where commanded and suitable variations of the DC-link voltages are proposed in order to decrease the energy losses. The study is carried out also aiming at the correct DC-link capacitor voltage balance, obtained with additional chopper stages together with a new PWM technique, considering both inverter and...
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