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Education, IEEE Transactions on

Educational methods, technology, and programs; history of technology; impact of evolving research on education.


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.


Industry Applications, IEEE Transactions on

The development and application of electric systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; the encouragement of energy conservation; the creation of voluntary engineering standards and recommended practices.


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 Choppers

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Replacement of thyristors with commutation circuits in choppers and inverters by GTOs

Klemens Heumann; Rainer Marquardt 1982 IEEE Power Electronics Specialists conference, 1982

Recently GTO-thyristors for high power have become available. Conditions for applications of GTOs are examined with respect to the type of converters, the switching behaviour, the snubber circuits (with losses and with energy regeneration) and the gating circuits. Results from a new test circuit are given, demonstrating that very high efficiencies can be achieved with GTOs.


Design and experimental evaluation of the loss-free braking resistor concept for applications in integrated converter machine systems

J. W. Kolar; H. Ertl; F. C. Zach Industrial Electronics Society, 1998. IECON '98. Proceedings of the 24th Annual Conference of the IEEE, 1998

If the braking resistor of a conventional dissipative braking system (braking chopper) of a three-phase AC motor drive is replaced by a thyristor bridge (loss-free braking resistor) controlled in the full inverter operation, the braking energy of the drive can be fed back into the mains. This means that the current flowing into the mains via always two phases from ...


Short-current pulse-based maximum-power-point tracking method for multiple photovoltaic-and-converter module system

T. Noguchi; S. Togashi; R. Nakamoto IEEE Transactions on Industrial Electronics, 2002

This paper proposes a novel maximum-power-point tracking (MPPT) method with a simple algorithm for photovoltaic (PV) power generation systems. The method is based on use of a short-current pulse of the PV to determine an optimum operating current where the maximum output power can be obtained and completely differs from conventional hill-climbing-based methods. In the proposed system, the optimum operating ...


Design and construction of a chopper driven 11.4 GHz traveling wave RF generator

J. Haimson; B. Mecklenburg Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE, 1989

The authors discuss the design and construction features of a high-power RF generator comprising a 5.7-GHz chopping system and 11.4-GHz high group velocity, traveling-wave structures. The device is designed for operation with high current megavoltage beams and has been developed in support of the Relativistic Klystron High Gradient Accelerator program. The RF chopping system operates under immersed beam conditions with ...


Double star chopper cell converter for battery electric vehicles with inter-module SoC balancing and fault tolerant control

Karthik Kandasamy; D. M. Vilathgamuwa; King-Jet Tseng IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014

A modularized battery system with Double Star Chopper Cell (DSCC) based modular multilevel converter is proposed for a battery operated electric vehicle (EV). A design concept for the modularized battery micro-packs for DSCC is described. Multidimensional pulse width modulation (MD-PWM) with integrated inter-module SoC balancing and fault tolerant control is proposed and explained. The DSCC can be operated either as ...


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Replacement of thyristors with commutation circuits in choppers and inverters by GTOs

Klemens Heumann; Rainer Marquardt 1982 IEEE Power Electronics Specialists conference, 1982

Recently GTO-thyristors for high power have become available. Conditions for applications of GTOs are examined with respect to the type of converters, the switching behaviour, the snubber circuits (with losses and with energy regeneration) and the gating circuits. Results from a new test circuit are given, demonstrating that very high efficiencies can be achieved with GTOs.


Design and experimental evaluation of the loss-free braking resistor concept for applications in integrated converter machine systems

J. W. Kolar; H. Ertl; F. C. Zach Industrial Electronics Society, 1998. IECON '98. Proceedings of the 24th Annual Conference of the IEEE, 1998

If the braking resistor of a conventional dissipative braking system (braking chopper) of a three-phase AC motor drive is replaced by a thyristor bridge (loss-free braking resistor) controlled in the full inverter operation, the braking energy of the drive can be fed back into the mains. This means that the current flowing into the mains via always two phases from ...


Short-current pulse-based maximum-power-point tracking method for multiple photovoltaic-and-converter module system

T. Noguchi; S. Togashi; R. Nakamoto IEEE Transactions on Industrial Electronics, 2002

This paper proposes a novel maximum-power-point tracking (MPPT) method with a simple algorithm for photovoltaic (PV) power generation systems. The method is based on use of a short-current pulse of the PV to determine an optimum operating current where the maximum output power can be obtained and completely differs from conventional hill-climbing-based methods. In the proposed system, the optimum operating ...


Design and construction of a chopper driven 11.4 GHz traveling wave RF generator

J. Haimson; B. Mecklenburg Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE, 1989

The authors discuss the design and construction features of a high-power RF generator comprising a 5.7-GHz chopping system and 11.4-GHz high group velocity, traveling-wave structures. The device is designed for operation with high current megavoltage beams and has been developed in support of the Relativistic Klystron High Gradient Accelerator program. The RF chopping system operates under immersed beam conditions with ...


Double star chopper cell converter for battery electric vehicles with inter-module SoC balancing and fault tolerant control

Karthik Kandasamy; D. M. Vilathgamuwa; King-Jet Tseng IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014

A modularized battery system with Double Star Chopper Cell (DSCC) based modular multilevel converter is proposed for a battery operated electric vehicle (EV). A design concept for the modularized battery micro-packs for DSCC is described. Multidimensional pulse width modulation (MD-PWM) with integrated inter-module SoC balancing and fault tolerant control is proposed and explained. The DSCC can be operated either as ...


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IEEE-USA E-Books

  • DC Machines and Drives

    This chapter discusses the well‐established theory of direct‐current (dc) machines, and illustrates the dynamic characteristics of the shunt and permanent‐magnet machines. The time‐domain block diagrams and state equations are developed for these two types of machines. The field and armature windings may be excited from separate sources or from the same source with the windings connected differently to form the basic types of dc machines, such as the shunt‐connected, the series‐connected, and the compound‐connected dc machines. The chapter provides the equivalent circuits for each of these machines along with an analysis and discussion of their steady‐state operating characteristics. It presents the widely used converters, and the analysis and performance of several common dc drive systems. The chapter analyzes the operation and establishes the average‐value model for one, two and four quadrant chopper drive systems. It concludes with a discussion on typical control systems, and the control design using the models.

  • Hardware Solutions for LVRT

    This chapter contains sections titled: Introduction Grid Codes Related to LVRT Crowbar Braking Chopper Other Protection Techniques Summary References

  • Monolithic Filter Design

    This chapter contains sections titled: Design Techniques for MOS Switched Capacitor Ladder Filters Technological Design Considerations for Monolithic MOS Switched-Capacitor Filtering Systems Switched-Capacitor Circuit Design A High Performance Low Power CMOS Channel Filter Effects of the Op Amp Finite Gain and Bandwidth on the Performance of Switched-Capacitor Filters High-Frequency CMOS Switched-Capacitor Filters for Communications Application A Low-Noise Chopper-Stabilized Differential Switched-Capacitor Filtering Technique A High-Performance Micropower Switched-Capacitor Filter Performance Limitations in Switched-Capacitor Filters Fully Integrated Active RC Filters in MOS Technology



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