Conferences related to Utility Interface

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2023 Annual International Conference of the IEEE Engineering in Medicine & Biology Conference (EMBC)

The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted full papers will be peer reviewed. Accepted high quality papers will be presented in oral and poster sessions,will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE.


2020 IEEE International Conference on Robotics and Automation (ICRA)

The International Conference on Robotics and Automation (ICRA) is the IEEE Robotics and Automation Society’s biggest conference and one of the leading international forums for robotics researchers to present their work.


2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)

All areas of ionizing radiation detection - detectors, signal processing, analysis of results, PET development, PET results, medical imaging using ionizing radiation


2020 IEEE Power & Energy Society General Meeting (PESGM)

The Annual IEEE PES General Meeting will bring together over 2900 attendees for technical sessions, administrative sessions, super sessions, poster sessions, student programs, awards ceremonies, committee meetings, tutorials and more


IECON 2020 - 46th Annual Conference of the IEEE Industrial Electronics Society

IECON is focusing on industrial and manufacturing theory and applications of electronics, controls, communications, instrumentation and computational intelligence.


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Periodicals related to Utility Interface

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Aerospace and Electronic Systems Magazine, IEEE

The IEEE Aerospace and Electronic Systems Magazine publishes articles concerned with the various aspects of systems for space, air, ocean, or ground environments.


Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Circuits and Systems Magazine, IEEE


Communications Magazine, IEEE

IEEE Communications Magazine was the number three most-cited journal in telecommunications and the number eighteen cited journal in electrical and electronics engineering in 2004, according to the annual Journal Citation Report (2004 edition) published by the Institute for Scientific Information. Read more at http://www.ieee.org/products/citations.html. This magazine covers all areas of communications such as lightwave telecommunications, high-speed data communications, personal communications ...


Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on

Methods, algorithms, and human-machine interfaces for physical and logical design, including: planning, synthesis, partitioning, modeling, simulation, layout, verification, testing, and documentation of integrated-circuit and systems designs of all complexities. Practical applications of aids resulting in producible analog, digital, optical, or microwave integrated circuits are emphasized.


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Most published Xplore authors for Utility Interface

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Xplore Articles related to Utility Interface

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Single phase utility interface inverter based on digital hysteresis current controller - Operational characteristics both grid-connected mode and islanding mode -

2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC), 2012

Current control of single phase utility interface is one of the problems because current reference contains frequency components and dq transformation cannot be applicable. Several methods have been proposed to overcome this problem such as deadbeat control, inner model method and so on. Hysteresis control is one of the current control method which can realize robust current controller with simple ...


Fault-tolerant Utility Interface power converter for low-voltage microgrids

2017 IEEE 8th International Symposium on Power Electronics for Distributed Generation Systems (PEDG), 2017

The utility interface (UI) converter is a three-phase power conversion unit equipped with energy storage which governs the interaction between the utility grid and the microgrid. The non-interruptive operation of UI is desired due to its several functions: (1) in grid-connected operation it performs as a voltage-supporting unit regulating the power flow through the microgrid point of common coupling, and ...


Industrial implementation of a back-to-back intertie using two standard drives-a retrofit solution to obtain a clean utility interface

IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243), 2001

Tighter power quality regulations stipulate improvement in utility interface of the existing and new industrial drives employed in a typical process plant. A generic variable speed drive draws power from the utility through a passive rectifier which is the primary source of harmonics that pollute the utility. Several topologies for passive and active filters have been studied extensively to mitigate ...


Autoinspection and Permitting With a PV Utility Interface (PUI) for Residential Plug-and-Play Solar Photovoltaic Unit

IEEE Transactions on Industry Applications, 2017

Renewable energy resources are becoming popular with mass adoption in residential and commercial applications because of gradual cost reduction along with continuous technical advancements. Photovoltaic (PV) energy is one of the biggest players of renewable energy installations although soft costs remain as the major barrier for higher penetration of PV systems. To address the cost challenges, a plug-and-play (PnP) system ...


IEEE Recommended Practice for Utility Interface of Residential and Intermediate Photovoltaic (PV) Systems

ANSI/IEEE Std 929-1988, 1987

This recommended practice applies to utility interconnected residential and intermediate size photovoltaic power systems capable of two-way energy flow with the utility. It addresses the interface between the PV system and the utility, and provides technical recommendations for the characteristics of the interface.<<ETX>>


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Educational Resources on Utility Interface

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IEEE-USA E-Books

  • Single phase utility interface inverter based on digital hysteresis current controller - Operational characteristics both grid-connected mode and islanding mode -

    Current control of single phase utility interface is one of the problems because current reference contains frequency components and dq transformation cannot be applicable. Several methods have been proposed to overcome this problem such as deadbeat control, inner model method and so on. Hysteresis control is one of the current control method which can realize robust current controller with simple hardware. On the other hand, LC output filter is required in some cases. In this case, a simple hysteresis control may cause oscillations or current error due to LC filter. Authors have proposed a new current control method suitable for single phase utility interface inverter using digital hysteresis controller with PI controller and state feedback. On the other hands, utility interface inverter has to have voltage control function in islanding mode. In this paper, operational characteristics of islanding mode are discussed at first as well as operational characteristics in grid-connected mode. Then hybrid switching filter is introduced to realize further improvement of switching ripple of output voltage.

  • Fault-tolerant Utility Interface power converter for low-voltage microgrids

    The utility interface (UI) converter is a three-phase power conversion unit equipped with energy storage which governs the interaction between the utility grid and the microgrid. The non-interruptive operation of UI is desired due to its several functions: (1) in grid-connected operation it performs as a voltage-supporting unit regulating the power flow through the microgrid point of common coupling, and compensating reactive power, unbalance and distortions caused by loads. (2) Whereas in islanded operation it performs as a voltage- forming unit and sets voltage amplitude and frequency for the entire microgrid. (3) Moreover, the UI ensures seamless transitions from grid- connected to islanded operation, actively decoupling the microgrid and the mains. Therefore, the UI plays a crucial role in centralized microgrid structures, and being a single-point of failure its safe and reliable operation entails directly the overall microgrid reliability. Thus, fault tolerant operation of such converter is a very important issue. The three- phase active neutral point clamped based power converter topology is capable to survive to successive open-circuit faults. Besides, it takes into account the advantages of the multilevel topologies: improved waveform quality, reduced filter size and equal loss distribution in the semiconductors. Simulation results are shown to analysis the operation of the fault-tolerant UI under faults.

  • Industrial implementation of a back-to-back intertie using two standard drives-a retrofit solution to obtain a clean utility interface

    Tighter power quality regulations stipulate improvement in utility interface of the existing and new industrial drives employed in a typical process plant. A generic variable speed drive draws power from the utility through a passive rectifier which is the primary source of harmonics that pollute the utility. Several topologies for passive and active filters have been studied extensively to mitigate these harmonics in the past few years. However, the filtering approach needs extensive system studies and is not a commercially viable option in the present day market. As an alternative, industrial drives with active rectifiers are also gaining popularity as a drive with harmonic- free utility interface. In addition to supporting the development cost of an entirely new product (which reflects in the higher premium for the end- customer), this active rectifier approach poses significant shortcomings in solving the problems of the drives that are already commissioned and are currently in use today. This paper presents a systematic methodology to couple two standard industrial drives which can be bought off the shelf to form a back-to-back intertie. The inverter side of this intertie drives the motor while the rectifier side ensures a harmonic-free interface with the utility. This arrangement can be used either as a retrofit solution for the pre- existing industrial drive at the cost of just one new standard drive, or it can be installed as a completely new system. This solution does not require any system studies for reliable operation and can be tacked on with least disturbance to the existing drive set-up. The proposed scheme is verified through extensive system simulations and experimental testing of a prototype in the laboratory.

  • Autoinspection and Permitting With a PV Utility Interface (PUI) for Residential Plug-and-Play Solar Photovoltaic Unit

    Renewable energy resources are becoming popular with mass adoption in residential and commercial applications because of gradual cost reduction along with continuous technical advancements. Photovoltaic (PV) energy is one of the biggest players of renewable energy installations although soft costs remain as the major barrier for higher penetration of PV systems. To address the cost challenges, a plug-and-play (PnP) system for a quick, low-cost installation is proposed and designed. The method is much less invasive and labor intensive than the traditional installation methods. This paper presents the PnP electrical system, with emphasis on the controls, software, and system-level communications within the system. A PV utility interface circuit has been developed for automated electrical safety checks and authentication for the PnP PV system. A data protocol has been used to deal with the master- slave controller setup in the system. This research has the potential to reduce the residential PV system price by $0.6/W.

  • IEEE Recommended Practice for Utility Interface of Residential and Intermediate Photovoltaic (PV) Systems

    This recommended practice applies to utility interconnected residential and intermediate size photovoltaic power systems capable of two-way energy flow with the utility. It addresses the interface between the PV system and the utility, and provides technical recommendations for the characteristics of the interface.<<ETX>>

  • Indirect current control scheme for a single-phase voltage-source utility interface inverter

    This paper presents an indirect current control scheme for utility interface applications. The scheme, which employs a single-phase half-bridge voltage- source inverter and a third order T-filter, is based on sensing the capacitor current of the load filter in an inner feedback control loop and the capacitor voltage in an outer voltage control loop to ensure that both the load voltage and current follow reference sinusoidal waveforms. The stability of the proposed scheme is investigated using the state-space averaging technique and the root locus method. The results of the stability analysis are used to select appropriate feedback control variables that produce stable feedback operation. Computer simulation results of the proposed utility interface system for operation of the power circuit from 'cold' start to full load is presented. It is shown that the proposed control scheme offers improved performance for utility interface applications. It is simple to implement, and is capable of producing nearly perfect sinusoidal line current and voltage waveforms at any desired power factor with moderate switching frequency and reasonable size of filter parameters.<<ETX>>

  • A single-phase voltage-source utility interface system for weak AC network applications

    This paper presents a novel control strategy for single-phase voltage-source electric utility interface systems. The proposed scheme employs a single-phase voltage-source half-bridge inverter and a third-order T-filter. The stability of the proposed scheme is first investigated, using the state-space averaging technique and root-locus method, in order to select appropriate feedback control variables that produce stable feedback operation. Secondly, based on the results of the stability analysis, both the capacitor current and voltage are employed in inner and outer feedback control loops respectively, in order to achieve stable operation of the proposed technique and to ensure sinusoidal load voltage and current in the power circuit. Thirdly, computer simulation results of the proposed utility interface system for operation of the power circuit from 'cold' start to full load is presented. It is shown that the proposed control scheme offers improved performance for utility interface applications. It is simple to implement, and capable of producing nearly perfect sinusoidal line current and voltage waveforms at any desired power factor with moderate switching frequency and reasonable size of filter parameters. Furthermore, it is compatible with both weak and large AC networks. Finally, experimental verification of the operation of the proposed scheme at various load power factors is provided.<<ETX>>

  • Comparison of oversampled current controllers for microgrid utility interface converters

    This paper presents the comparison of three different fully digital, oversampled, large bandwidth inverter current controllers: a proportional integral controller, a predictive controller, and a non-linear hysteresis controller. The purpose is to determine which one allows to achieve the highest final performance when adopted as the inner current control loop in a microgrid utility interface converter. The utility interface operation in the microgrid, as either a voltage supporting or a voltage forming converter, needs a fast output voltage control loop. In order to achieve a large bandwidth voltage regulation, with effective load disturbance rejection, the inner current loop small-signal bandwidth needs to be maximized. To prevent saturation of the voltage loop, a fast large-signal response of the current controller is also beneficial. The paper analyzes the above current controllers and compares their small-signal bandwidths and large-signal reference tracking performance. The better performing controller is then used in a multi-loop voltage control for the utility interface converter. Experimental results are presented that allow to validate the analytical results and to illustrate the achievable performance of the utility interface voltage regulation loop in steady state and transient conditions.

  • A new approach to improve power factor and reduce harmonics in a three phase diode rectifier type utility interface

    A novel approach to improving power factor and reducing harmonics generated by a three-phase diode-rectifier-type utility interface is proposed. This approach is passive and consists of a novel interconnection of a star/delta power transformer between the AC and DC sides of the diode rectifier topology. This interconnection, in combination with the 120 degrees conduction intervals of each diode, is shown to generate a circulating third-harmonic current between the AC and DC side of the rectifier bridge. This current is shown to drastically improve the performance of the diode-rectifier-type interface. The resulting input current is near-sinusoidal, with significant reduction in line current harmonics. The proposed system can be viewed as a cost-effective retrofit to the existing diode rectifier utility interface applications. A design example illustrates the sizing of the necessary passive components. Selected results were verified experimentally on a laboratory prototype system.<<ETX>>

  • Polyphase transformer arrangements with reduced kVA capacities for harmonic current reduction in rectifier-type utility interface

    In this paper, polyphase power transformer arrangements with reduced kVA capacities are presented for harmonic current reduction in high power diode rectifier-type utility interface systems. Based on the concept of an autotransformer, a 12-pulse rectifier system is realized with a resultant transformer kVA rating of 0.18P/sub 0/ (pu). In this arrangement the 5, 7, 17, 19, etc. harmonics are absent from the utility input line current. In the second scheme an 18-pulse rectifier is realized with the kVA rating of 0.16P/sub 0/ (pu) and the 5, 7, 11, 13, etc. harmonics are canceled in the utility line currents. Analytical design equations are presented to facilitate the design of system components. Simulation results verify the proposed concept, and experimental results are provided from a 208 V, 10 kVA 12-pulse rectifier system. The advantage of employing the proposed system for utility interface of rectifier/PWM-inverter motor drive systems is also explained.



Standards related to Utility Interface

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IEEE Guide for Monitoring, Information Exchange, and Control of Distributed Resources Interconnected with Electric Power Systems

This document provides guidelines for monitoring, information exchange, and control for distributed resources (DR) interconnected with electric power systems (EPS).


IEEE Recommended Practice for Electronic Power Subsystems: Parameters, Interfaces, Elements, and Performance

The Recommended Practice applies to ac-dc and dc-dc electronic power subsystems. The range of power subsystems includes dc, single phase, and three-phase inputs, with elements having power levels from a fraction of a watt to 20 kW. The voltage range is 600 V and below, at a frequency or frequencies of dc -1 kHz. The recommended practice may be used ...


IEEE Recommended Practice for Utility Interconnection of Small Wind Energy Conversion Systems


IEEE Standard for Automatic Meter Reading via Telephone - Network to Utility Controller

Produce a standard interface between the utility controller and the switched telephone network.


IEEE Standard for Information Technology - Portable Operating System Interface (POSIX) - Part 26: Device Control Application Program Interface (API) [C Language]

This work will define an application program interface to device drivers. The interface will be modeled on the traditional ioctl() function, but will have enhancements designed to address issues such as type safety" and reentrancy. "


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Jobs related to Utility Interface

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