Topic
PWM rectifier
About: PWM rectifier is a research topic. Over the lifetime, 2254 publications have been published within this topic receiving 25614 citations.
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01 Sep 2007
TL;DR: A novel three-phase PWM rectifier-inverter topology for UPS applications that features sinusoidal inputs and outputs, unity input power factor, and more importantly, low manufacturing cost is proposed.
Abstract: A novel three-phase PWM rectifier-inverter topology for UPS applications is proposed in this paper. The topology uses only nine IGBT devices for AC/AC conversion through a quasi DC link circuit. This converter topology features sinusoidal inputs and outputs, unity input power factor, and more importantly, low manufacturing cost. The operating principle of the converter is elaborated and a novel modulation scheme is presented. The performance of the proposed converter is verified by experiments on a 5 kVA prototyping UPS system.
99 citations
16 Mar 2014
TL;DR: A new topology for a pulse width modulation (PWM) rectifier which can achieves both sinusoidal input current on the ac side and ripple power decoupling on the DC side without additional switches is proposed.
Abstract: This paper proposes a new topology for a pulse width modulation (PWM) rectifier which can achieves both sinusoidal input current on the ac side and ripple power decoupling on the DC side without additional switches. The AC inductor of the conventional H-bridge circuit is divided into two parts and only an auxiliary decoupling capacitor is added in the proposed circuit. Control scheme is also proposed for the circuit working as unity power factor rectifier. Compared with other decoupling circuits, this circuit has the same advantage such as high power density. Due to no additional switches, the proposed circuit has higher efficiency. Effectiveness of the circuit is validated by simulation.
99 citations
TL;DR: In this article, a combined maximum power point tracking (MPPT)-Pitch angle robust control system of a variable-speed wind turbine is developed using only one low cost circuit based on Neural Network (ANN), which allows the PMSG to operate at an optimal speed to extract maximum power when this last is lower than nominal power, and limit the extra power.
97 citations
11 Jun 1990
TL;DR: In this paper, a PWM rectifier/inverter system using IGBTs (insulated-gate bipolar transistors), capable of switching at 20 kHz, is reported.
Abstract: A PWM (pulse width modulation) rectifier/inverter system using IGBTs (insulated-gate bipolar transistors), capable of switching at 20 kHz, is reported. The base drive circuit for the IGBT, incorporating short circuit protection, is presented. The inverter uses an Undeland snubber together with a simple energy recovery circuit, which ensures reliable and efficient operation even for 20 kHz switching. The front end for the system is a regenerative single-phase full-bridge IGBT inverter along with an AC reactor. The steady-state design considerations are explained, and control techniques for unity power factor operation and fast current control of the front end converter, in rotating as well as stationary reference frames, are discussed and compared. Results from computer simulations and experimental results for a 1.5 kW prototype system using GE type 6E20 IGBTs are presented. >
90 citations
TL;DR: This paper proposes the use of higher order resonant controllers in the classical control structure of the single-phase PWM rectifier to ensure zero steady-state tracking error of the reference current at fundamental frequency.
Abstract: Multicell converters are one of the alternative topologies for medium-voltage industrial drives For an application requiring regenerative capability, each power cell must be constructed with a three- or single-phase pulsewidth-modulation (PWM) rectifier as front end The choice of single-phase PWM rectifiers for the input of the cells results in a reduced number of power switches and a simpler input transformer than the three-phase equivalent However, its control is not as straightforward This paper proposes the use of higher order resonant controllers in the classical control structure of the single-phase PWM rectifier This ensures zero steady-state tracking error of the reference current at fundamental frequency A detailed description of the design criteria for the position of the zeros and poles of the controller is given Experimental results showing the good performance of the single-phase input cells and its proposed control are included
89 citations