Rectifier

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A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (Pulsating DC), which is in only one direction, and the process is known as rectification. (Wikipedia.org)







Periodicals related to Rectifier

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Industrial Electronics, IEEE Transactions on

Theory and applications of industrial electronics and control instrumentation science and engineering, including microprocessor control systems, high-power controls, process control, programmable controllers, numerical and program control systems, flow meters, and identification systems.


Power Electronics, IEEE Transactions on

Fundamental technologies used in the control and conversion of electric power. Topics include dc-to- dc converter design, direct off-line switching power supplies, inverters, controlled rectifiers, control techniques, modeling, analysis and simulation techniques, the application of power circuit components (power semiconductors, magnetics, capacitors), and thermal performance of electronic power systems.




Xplore Articles related to Rectifier

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Optimisation of wind power PMSM to grid conversion system

Ince Kayhan; Weiss Helmut 2008 13th International Power Electronics and Motion Control Conference, 2008

Wind energy conversion systems have become a focal point in the research of renewable energy sources. Due to rapid advances in the size and power rating of wind generators as well as development of power electronics. These electrical utilities generate and provide energy in AC form. As the wind energy to electrical power conversion is rather expensive we concentrate on ...


Operation of a controlled rectifier supported dynamic voltage regulator

S. Iyer; A. Ghosh; A. Joshi IEEE Power Engineering Society General Meeting, 2005, 2005

This paper discusses the theory of series compensation in a three-phase four- wire distribution system using a DVR. The method of generating references for the voltages to be injected as well as the strategy for controlling the switching of the four-leg VSC used in the paper have been described. Simulation results have been provided which show that the DVR provides ...


Eight-switch, three-phase rectifier for power factor correction

B. -R. Lin; Y. -C. Lee IEE Proceedings - Electric Power Applications, 2004

An eight-switch, three-phase neutral-point switch-clamped rectifier is presented in order to achieve a high input power factor and to draw sinusoidal currents from the AC mains. In the conventional three-phase, neutral-point switch-clamped rectifier, the circuit configuration consists of six power switches with voltage stress vdc and three AC power switches with voltage stress vdc/2. There are only four power switches ...


Digital control of three-phase PWM inverters for UPSs using dead-beat observer

Y. Ito; M. Iwata; S. Kawauchi Conference Record of the Power Conversion Conference - Yokohama 1993, 1993

The authors describe a digital control method operated by a digital signal processor (DSP) of a three-phase PWM inverter with an inductor-capacitor (L-C) filter for uninterruptible power supplies (UPSs) in the inverter output. The inverter output voltage control system has a minor loop of the filter capacitor current. In the loop, a full-order observer operating at dead-beat estimation compensates a ...


Silicon alloy junction diode as a reference standard

D. H. Smith Electrical Engineering, 1955

THE ADVENT of transistors and junction diodes and their incorporation into telephone equipment has increased the importance of the regulated metallic rectifier as a source of low-voltage d-c power. It has been found possible to replace vacuum tube and magnetic amplifier regulating circuits in these power supplies with equivalent, and usually more compact and efficient, semiconductor apparatus.1


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Educational Resources on Rectifier

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eLearning

Optimisation of wind power PMSM to grid conversion system

Ince Kayhan; Weiss Helmut 2008 13th International Power Electronics and Motion Control Conference, 2008

Wind energy conversion systems have become a focal point in the research of renewable energy sources. Due to rapid advances in the size and power rating of wind generators as well as development of power electronics. These electrical utilities generate and provide energy in AC form. As the wind energy to electrical power conversion is rather expensive we concentrate on ...


Operation of a controlled rectifier supported dynamic voltage regulator

S. Iyer; A. Ghosh; A. Joshi IEEE Power Engineering Society General Meeting, 2005, 2005

This paper discusses the theory of series compensation in a three-phase four- wire distribution system using a DVR. The method of generating references for the voltages to be injected as well as the strategy for controlling the switching of the four-leg VSC used in the paper have been described. Simulation results have been provided which show that the DVR provides ...


Eight-switch, three-phase rectifier for power factor correction

B. -R. Lin; Y. -C. Lee IEE Proceedings - Electric Power Applications, 2004

An eight-switch, three-phase neutral-point switch-clamped rectifier is presented in order to achieve a high input power factor and to draw sinusoidal currents from the AC mains. In the conventional three-phase, neutral-point switch-clamped rectifier, the circuit configuration consists of six power switches with voltage stress vdc and three AC power switches with voltage stress vdc/2. There are only four power switches ...


Digital control of three-phase PWM inverters for UPSs using dead-beat observer

Y. Ito; M. Iwata; S. Kawauchi Conference Record of the Power Conversion Conference - Yokohama 1993, 1993

The authors describe a digital control method operated by a digital signal processor (DSP) of a three-phase PWM inverter with an inductor-capacitor (L-C) filter for uninterruptible power supplies (UPSs) in the inverter output. The inverter output voltage control system has a minor loop of the filter capacitor current. In the loop, a full-order observer operating at dead-beat estimation compensates a ...


Silicon alloy junction diode as a reference standard

D. H. Smith Electrical Engineering, 1955

THE ADVENT of transistors and junction diodes and their incorporation into telephone equipment has increased the importance of the regulated metallic rectifier as a source of low-voltage d-c power. It has been found possible to replace vacuum tube and magnetic amplifier regulating circuits in these power supplies with equivalent, and usually more compact and efficient, semiconductor apparatus.1


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IEEE-USA E-Books

  • POWER ELECTRONICS

    In a circuit???oriented simulation environment, there are three levels of modeling: component level, circuit level and system level. A system???level simulation can merge the interaction of different modules in a system, for example, a converter, a controller, source, and load. A very appropriate level of circuit???level modeling must be chosen to incorporate the functionality and large signal behavior of switching converters, fast inner control loops, and fundamental power electronic switch operation. The PSIM circuit simulator approaches the idealized switching of semiconductors instead of detailed physical models with a good degree of analog and digital circuits required for designing circuits. A simple circuit that can be studied in a circuit simulator is a half???wave rectifier, because it can be used for cross???examination of exact mathematical calculations with their simulations in a circuit simulator as well as their numerical computation using a platform such as MATLAB.

  • Hybrid and Series Active Filters

    The series active filter acts like a dual device for the shunt active filter. The shunt active filter has a voltage source at the source side and a current source at the load side, where the current source includes harmonic currents that have to be compensated by the shunt active filter. In some cases, the combination of a voltage source and its impedance at the source side is considered as a current source. As a result, the series active filter operates as a dual circuit of the shunt active filter from a theoretical point of view. Comprehensive research has been conducted on hybrid active filters for harmonic filtering, harmonic damping, harmonic isolation, and harmonic termination. This chapter presents a transformer less hybrid active filter integrated into a medium???voltage motor drive for energy savings. It discusses the stability of the ac/dc power conversion system characterized by integration of a series active filter with a double???series diode rectifier.

  • Some Results on Ideal Rectifier CircuitsBell Laboratories Memorandum, June 8, 1955.

    Some results are obtained in the theory of circuits constructed of rectifiers and of rectifiers and relay contacts. Such circuits are shown to be related to partially ordered sets. Upper and lower bounds are found for the number of rectifiers necessary for n-terminal rectifier circuits. A duality theorem is obtained. A partly ordered set analyzer is described.

  • Bipolar Components of IGBT

    PN Junction Diode P-I-N Rectifier Bipolar Junction Transistor Thyristor Junction Field-Effect Transistor (JFET) Summarizing Remarks Review Exercises References Appendix 4.1 Drift and Diffusion Current Densities Appendix 4.2 Einstein's Equation Appendix 4.3 Continuity Equation and Its Solution Appendix 4.4 Solution of the Continuity Equation (4.41) Appendix 4.5 Derivation of Eq. (4.50) Appendix 4.6 Derivation of Current Density Equations (4.55) and (4.56) Appendix 4.7 Transistor Terminal Currents [Eqs. (4.57) and (4.58)] Appendix 4.8 Common-Base Current Gain T [Eq. (4.63)]

  • Continuing Developments in Modulation

    This chapter contains sections titled: Random Pulse Width Modulation PWM Rectifier with Voltage Unbalance Common Mode Elimination Four Phase Leg Inverter Modulation Effect of Minimum Pulse Width PWM Dead-Time Compensation Summary This chapter contains sections titled: References

  • Self and LineCommutated CurrentSourced Converters

    This chapter contains sections titled: Basic Concept of Current-Sourced Converters Three-Phase Full-Wave Diode Rectifier Thyristor-Based Converter (with gate turn-on but without gate turn-off) Current-Sourced Converter with Turn-Off Devices (current stiff converter) Current-Sourced Versus Voltage-Sourced Converters This chapter contains sections titled: References

  • Physics and Modeling of IGBT

    Pin Rectifier-DMOSFET Model of IGBT Bipolar Transistor-DMOSFET Model of IGBT by Extension of PIN Rectifier-DMOSFET Model Bipolar Transistor-DMOSFET Model of IGBT with Device-Circuit Interactions Concluding Comments Review Exercises References Appendix 5.1 Solution of Eq. (5.8) Appendix 5.2 Derivation of Eqs. (5.33) and (5.34) Appendix 5.3 Derivation of Eq. (5.35) Appendix 5.4 Derivation of Eq. (5.38) [Solution of Eq. (5.35)] Appendix 5.5 Derivation of Eqs. (5.40)-(5.42) Appendix 5.6 Derivation of Eq. (5.44) Appendix 5.7 Derivation of Eqs. (5.81) and Construction of Equivalent Conductive Network for 1-D Linear Element

  • Hybrid and Series Active Filters

    This chapter contains sections titled: Basic Series Active Filter Combined Series Active Filter and Shunt Passive Filter Series Active Filter Integrated with a Double-Series Diode Rectifier Comparisons Between Hybrid and Pure Active Filters Conclusions References

  • Practical Selection of Components

    This chapter contains sections titled: Introduction Resistors Capacitors and their Usage Schottky Diodes Rectifier Diodes Transistors: BJTs Transistors: MOSFETs Op Amps Comparators References

  • CHAPTER 4

    The primary sources of harmonics in the power system are power converters, rectifiers, inverters, diacs, triacs, gate turn off thyristors (GTOs) and adjustable speed drives. The characteristic harmonics are those produced by the power electronic converters during normal operation and these harmonics are integer multiples of the fundamental frequency of the power system. The single-phase rectifier full-bridge circuit is first considered to establish relations on the AC and DC sides and origin of harmonics. The reactive power consumed by the converters can be supplied by shunt capacitors and filters. The thyristor-based converters become economical in large power handling capabilities as per device basis; the thyristors can handle two to three times more power than GTOs, integrated gate bipolar transistors (IGCTs) and MOS turn-off thyristors (MTOs). Conventional thyristors have turn-on control only. These can be only current source converters.



Standards related to Rectifier

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IEEE Standard for Practices and Requirements for Semiconductor Power Rectifier Transformers Amendment 1: Added Technical and Editorial Corrections


IEEE Standard for Uncontrolled Traction Power Rectifiers for Substation Applications Up to 1500 V DC Nominal Output

This standard covers the design, manufacturing, and testing unique to the application of uncontrolled semiconductor power rectifiers for direct current (dc)-supplied transportation substation applications up to 1500 V dc nominal output.


IEEE Standard Practices and Requirements for Semiconductor Power Rectifier Transformers

To develop a standard for transformers serving semiconductor power rectifiers employing monochrystalline semiconductor diodes or thyristors. Excepted applications are welding equipment, static precipitators, HVDC converters, and low power applications; such as radio receivers and other non-linear loads. The standard includes loads rated: single phase 300 KW and above and three phase 500 KW and above.