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.



Most published Xplore authors for Rectifier

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Xplore Articles related to Rectifier

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High power factor three phase rectifier for high power density AC/DC conversion applications

J. G. Cho; C. Y. Jeong; J. W. Baek; D. I. Song; D. W. Yoo; C. Y. Won Applied Power Electronics Conference and Exposition, 1999. APEC '99. Fourteenth Annual, 1999

The conventional three-phase rectifier with bulky LC output filter has been widely used in the industry because of its distinctive advantages over the active power factor correction rectifier such as simple circuit, high reliability and low cost. Over 0.9 power factor can be achieved, which is acceptable in most industry applications. This rectifier, however, is not easy to use for ...


An evaluation of the DC-link capacitor heating in adjustable speed drive systems with different utility interface options

D. Rendusara; E. Cengelci; P. Enjeti; D. C. Lee Applied Power Electronics Conference and Exposition, 1999. APEC '99. Fourteenth Annual, 1999

In this paper, an evaluation of DC-link capacitor heating in adjustable speed drive systems with different utility interface options is presented. The evaluation is based on the level of ripple currents DC-link capacitors can endure that lead to self-heating and reduction of capacitors' operating life. Three popular utility interface options for ASD systems are considered for evaluation. First, a standard ...


Design considerations for 12/24-pulse auto-connected rectifiers for large VA, PWM drive systems

D. Rendusara; K. J. Slater; B. S. Lee; P. Enjeti; I. Pitel; W. Gray Applied Power Electronics Conference and Exposition, 1999. APEC '99. Fourteenth Annual, 1999

Auto-connected multipulse (12/24 pulse) rectifier schemes are cost-effective methods for reducing line current harmonics in PWM motor drive systems. Employing these schemes to enhance utility power quality requires careful attention to several design considerations. In particular: excursion of DC- link voltage at no load; effect of pre-existing voltage distortion; impedance mismatches; unequal diode drops on rectifier current sharing; and performance ...


Design, analysis and fabrication of rectenna for wireless power transmission - Virtual battery

S. Vinoth Kumar; Pragati Patel; Ashok Mittal; Asok De 2012 National Conference on Communications (NCC), 2012

This paper presents the novel rectenna design for Wireless Power Transmission. The design would receive and convert microwave of 2.45GHz to DC. Proposed rectenna is a combination of Microstrip patch antenna, followed by stepped impedance filter and zero biased rectifier. Performance of rectenna is analyzed using Harmonic Balance Analysis. Good agreement between simulated and measured results is observed.


Varying duty cycle control for discontinuous conduction mode boost rectifiers

Yu-Kang Lo; Sheng-Yuan Ou; Tzu-Herng Song 4th IEEE International Conference on Power Electronics and Drive Systems. IEEE PEDS 2001 - Indonesia. Proceedings (Cat. No.01TH8594), 2001

A novel control method for boost rectifiers to attenuate the low-order harmonics which are difficult to be removed by the input filter is presented in this paper. The duty cycle within a fixed switching period is varied such that the rectifier is operated at the boundary of the discontinuous and continuous conduction modes. Compared to the traditional discontinuous conduction control ...


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Educational Resources on Rectifier

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eLearning

High power factor three phase rectifier for high power density AC/DC conversion applications

J. G. Cho; C. Y. Jeong; J. W. Baek; D. I. Song; D. W. Yoo; C. Y. Won Applied Power Electronics Conference and Exposition, 1999. APEC '99. Fourteenth Annual, 1999

The conventional three-phase rectifier with bulky LC output filter has been widely used in the industry because of its distinctive advantages over the active power factor correction rectifier such as simple circuit, high reliability and low cost. Over 0.9 power factor can be achieved, which is acceptable in most industry applications. This rectifier, however, is not easy to use for ...


An evaluation of the DC-link capacitor heating in adjustable speed drive systems with different utility interface options

D. Rendusara; E. Cengelci; P. Enjeti; D. C. Lee Applied Power Electronics Conference and Exposition, 1999. APEC '99. Fourteenth Annual, 1999

In this paper, an evaluation of DC-link capacitor heating in adjustable speed drive systems with different utility interface options is presented. The evaluation is based on the level of ripple currents DC-link capacitors can endure that lead to self-heating and reduction of capacitors' operating life. Three popular utility interface options for ASD systems are considered for evaluation. First, a standard ...


Design considerations for 12/24-pulse auto-connected rectifiers for large VA, PWM drive systems

D. Rendusara; K. J. Slater; B. S. Lee; P. Enjeti; I. Pitel; W. Gray Applied Power Electronics Conference and Exposition, 1999. APEC '99. Fourteenth Annual, 1999

Auto-connected multipulse (12/24 pulse) rectifier schemes are cost-effective methods for reducing line current harmonics in PWM motor drive systems. Employing these schemes to enhance utility power quality requires careful attention to several design considerations. In particular: excursion of DC- link voltage at no load; effect of pre-existing voltage distortion; impedance mismatches; unequal diode drops on rectifier current sharing; and performance ...


Design, analysis and fabrication of rectenna for wireless power transmission - Virtual battery

S. Vinoth Kumar; Pragati Patel; Ashok Mittal; Asok De 2012 National Conference on Communications (NCC), 2012

This paper presents the novel rectenna design for Wireless Power Transmission. The design would receive and convert microwave of 2.45GHz to DC. Proposed rectenna is a combination of Microstrip patch antenna, followed by stepped impedance filter and zero biased rectifier. Performance of rectenna is analyzed using Harmonic Balance Analysis. Good agreement between simulated and measured results is observed.


Varying duty cycle control for discontinuous conduction mode boost rectifiers

Yu-Kang Lo; Sheng-Yuan Ou; Tzu-Herng Song 4th IEEE International Conference on Power Electronics and Drive Systems. IEEE PEDS 2001 - Indonesia. Proceedings (Cat. No.01TH8594), 2001

A novel control method for boost rectifiers to attenuate the low-order harmonics which are difficult to be removed by the input filter is presented in this paper. The duty cycle within a fixed switching period is varied such that the rectifier is operated at the boundary of the discontinuous and continuous conduction modes. Compared to the traditional discontinuous conduction control ...


More eLearning Resources

IEEE-USA E-Books

  • Arc Flash Hazard Calculations in DC Systems

    This chapter contains sections titled: Calculations of the Short-Circuit Currents in DC Systems Sources of DC Short-Circuit Currents IEC Calculation Procedures Short Circuit of a Lead Acid Battery Short Circuit of DC Motors and Generators Short-Circuit Current of a Rectifier Short Circuit of a Charged Capacitor Total Short-Circuit Current DC Circuit Breakers and Fuses Arcing in DC Systems Equations for Calculation of Incident Energy in DC Systems Protection of the Semiconductor Devices Review Questions References

  • 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.

  • Dynamic Average Modelling of Rectifier Loads and AC-DC Converters for Power System Applications

    This chapter presents an overview of dynamic average-modelling of front-end diode rectifier loads and pulse width modulation (PWM) AC-DC converter systems. It also presents a detailed analysis with an overview of all possible modes of operation from open-circuit to short-circuit conditions. The chapter discusses the basic approaches for developing the AVMs. Three selected average-value models (AVMs) are utilized in extracting steady-state operational characteristics of the rectifier system, followed by a comparative analysis of the AVM dynamic orders. The chapter compares the small-signal input/output impedance characteristics predicted by different models. It examines the transient performance of the AVMs for various operating conditions including light and heavy loading conditions, discontinuous and continuous modes, as well as balanced and unbalanced AC side. Finally, the generalization of the analyses is considered for high-pulse-count converters using an example six-phase topology.

  • SiliconControlled Rectifier

    This chapter contains sections titled: History Structure Characteristics Applications Related Devices This chapter contains sections titled: References

  • Z-Source Matrix Converter

    There are two types of ac-ac conversion systems, the traditional ac-dc-ac converter and the matrix converter (MC). The traditional ac-dc-ac converter consists of a pulse width modulation (PWM) boost rectifier and a PWM inverter with dc-link bus. This chapter presents an updated overview of the different Z-source matrix converter topologies including the Z-source indirect matrix converter (ZSIMC), with its all-silicon and not all-silicon configurations, and also the Z-source direct matrix converter (ZSDMC). A new control method has been proposed to increase the operating voltage range of an indirect matrix converter based motor drive, while at the same time guaranteeing unitary input power factor. The QZSMC topologies overcome the voltage gain limitation of the traditional MC and achieve buck and boost conditions with a reduced number of switches, therefore achieving low cost, high efficiency, and reliability compared to the back-to-back converter.

  • Transformerless MV Drives

    This chapter focuses on the development of medium???voltage (MV) drives without the need of isolation or phase???shifting transformers. It analyses the common???mode (CM) voltage issue in the MV drive, and discusses mitigation methods for the reduction or elimination of CM voltages. The chapter presents principle and realization of transformerless voltage source converter (VSC) and current source converter (CSC) fed MV drives. To develop a multilevel VSC fed MV drive without requiring isolation transformers, three methods can be generally employed: elimination of the CM voltages with the reduction of CM voltage scheme 2 (RCM2), suppression of CM voltage by CM filters, and combined method of the CM filters and reduction of CM voltage scheme 1 (RCM1)/RCM2 schemes. With the neutral point of the stator winding grounded, the CM voltage produced by the rectifier and inverter is applied to the neutral of the transformer winding.

  • Phase???Shifting Transformers

    This chapter addresses a number of issues concerning the phase???shifting transformer, including the configuration of the transformer, the design of turns ratios, and the principle of harmonic current cancellation. It discusses the structure and phasor diagrams of the transformers. To assist the transformer design, the relationship between the required phase???shifting angle and transformer turns ratio is tabulated. The phase???shifting transformer is an indispensable device in multipulse diode/SCR rectifiers. It provides three main functions: a required phase displacement between the primary and secondary line???to???line voltages for harmonic cancellation, a proper secondary voltage, and an electric isolation between the rectifier and the utility supply. Depending on winding connections, the line???to???line voltage of the transformer secondary winding may lead or lag its primary voltage by a phase angle. To reduce the line current THD in high???power rectifiers, multipulse diode/SCR rectifiers powered by phase???shifting transformers are often employed.

  • Introduction

    The development of high???power converters and medium voltage (MV) drives started in the mid 1980s when 4500 V gate turn off (GTO) thyristors became commercially available. The use of the MV drive can also increase productivity in some applications. A case was reported from a cement plant where the speed of a large fan was made adjustable by an MV drive. The technical requirements and challenges for the MV drive differ in many aspects from those for the low voltage ac drives. The rectifier normally produces distorted line currents and also causes notches in voltage waveforms. This requirement is especially important for the MV drive due to its high power rating. Fast switching speed of the semiconductor devices results in high dv/dt at the rising and falling edges of the inverter output voltage waveform. A number of MV drive products come with different designs using various power converter topologies and control schemes.

  • 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

  • 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.



Jobs related to Rectifier

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