Impacts of modern residential loads on power grids

Coenen, Mark; Marshall, T. C.; Sztur, Peter; Al-Mutawaly, Nafia

doi:10.1109/ccece.2014.6901085

Cited by 10 publications

(7 citation statements)

References 2 publications

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“…(ii) The maximum depth of molten tungsten per JET pulse, which is evaluated from a high resolution photography taken of the lamella after each melting pulse. After a total of 5 melting pulses, with high reproducibility [13] it was evaluated that about 1 mm (in the y 0 direction) of material was removed from the corner of the lamella for a total of 6-7 mm 3 of material moved/vaporised, that is to say 200 lm per pulse. (iii) We are ultimately interested in the peak temperature and its location on the melted lamella.…”

Section: Measurements and Methodsmentioning

confidence: 99%

Thermal analysis of an exposed tungsten edge in the JET divertor

Arnoux

Coenen

Базылев

et al. 2015

Journal of Nuclear Materials

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Section: Measurements and Methodsmentioning

confidence: 99%

Thermal analysis of an exposed tungsten edge in the JET divertor

Arnoux

Coenen

Базылев

et al. 2015

Journal of Nuclear Materials

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“…Changing technologies have upended these assumptions. The new power grid is increasingly dynamic [33], few devices interact with the grid in the straightforward linear manner of old [34], and customers have long-since evolved into providers of resources that actively support grid health [35]. Indeed, expanding capabilities and falling costs for small-scale energy technologies have allowed customers and other actors to emerge as entirely new classes of asset owners.…”

Section: The Empowered Consumermentioning

confidence: 99%

“…Inductive motors, for example, can operate at suboptimal circuit voltages and frequency, albeit with reduced efficiency which may minimize device usefulness under degraded conditions. 34 Yet inductive motors and loads are designed to continue operations through suboptimal grid conditions [105] and regularly do so.…”

Section: Changing Physics At the Edge Of The Systemmentioning

confidence: 99%

“…Changes to grid physics associated with the transition from analog to digital (or solid-state) components warrants examination as stakeholders seek to understand evolving interoperability requirements for observing and controlling the grid. 34 Because of phase interactions between inductive loads and alternating current circuits, under highly stressed grid conditions it may be possible for motors or other inductive loads to contribute to system failure in a way that resistive loads do not. 35 Diodes are also used in semiconductor-based electrical loads and can be designed to have switching characteristics similar to transistors, albeit with switching characteristics driven by voltage thresholds.…”

Section: Changing Physics At the Edge Of The Systemmentioning

confidence: 99%

See 1 more Smart Citation

NIST framework and roadmap for smart grid interoperability standards, release 4.0

Gopstein¹,

Nguyen²,

O'Fallon³

et al. 2021

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Interoperability-the ability to exchange information in a timely, actionable manner-is a critical yet underdeveloped capability of the power system. Significant grid modernization has occurred in recent years, but the proliferation of technology and associated standards has only modestly improved interoperability. The expansion of distributed energy resources and other technologies, along with changing customer expectations, have complicated the interoperability challenge. This revision of the NIST Smart Grid Interoperability Framework uses evolving technology and power system architectures as context for describing a new set of interoperability perspectives. Distributed and customer-sited resources figure prominently in the future smart grid, as do intelligent distribution systems and other key integrators. As society modernizes the physical mechanisms by which we produce, manage, and consume electricity, strategies for system operations and economic structure will diversify. This diversification will benefit fromand eventually rely upon-enhanced interoperability. The benefits of interoperability are broad and reach all stakeholders at all scales. Interoperability is a hedge against technology obsolescence, maximizes the value of equipment investments by increasing usage for secondary purposes, and facilitates combinatorial innovation by allowing coordinated small actions across diverse stakeholders and devices to have grand impacts. The interoperability value proposition can be realized in any system domain, from the utility to the customer and beyond. Interoperability requires a cybersecurity approach that manages risk while opening new communication interfaces. The desired outcomes for the grid and the information exchanges that must be protected will have to be considered in concert and will benefit from a structured approach to system security. New interfaces can benefit from existing security processes. Testing and certification is a critical enabler of smart grid interoperability. However, the current industry focus on certifying conformance to individual standards is only the first step on the pathway to assuring interoperability for devices or systems, and cannot provide interoperability without significant additional effort. Many others have provided important ideas and facilitated processes that are the foundations for this Framework. The contributions of the following individuals were especially noteworthy and appreciated:

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“…As a result, there is a vital need to reduce and possibly eliminate Harmonics. Tests had indicated that smart appliances failed to meet the international standards established in North America (IEEE 519) and Europe (IEC 61000-3-2) [4]. In this paper, an active filter design was simulated to be tested on appliances.…”

Section: Introductionmentioning

confidence: 99%

Shunt active power filtering for smart appliances

Al-Musawi

Al-Mutawaly

Schofield

2015

2015 IEEE 28th Canadian Conference on Electrical and Computer Engineering (CCECE)

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Due to the increasing trend towards energy saving white goods appliances and the commercial viability of power electronic components, there has been an expansion in the use of solid state electronics and variable frequency drive motors in these applications. However, a major drawback of using such energy efficient loads is the introduction of current harmonics onto the local distribution grid. Furthermore, the proliferation of such devices elevates the supply harmonic content and can potentially impact residential distribution networks. This paper investigates the harmonic content generated by some household appliances and suggests a solution to minimize harmonics by means of active filtering. An active filter circuit was simulated to compare filter performance when used as an active front versus a feeder input compensator.

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Impacts of modern residential loads on power grids

Cited by 10 publications

References 2 publications

Thermal analysis of an exposed tungsten edge in the JET divertor

Thermal analysis of an exposed tungsten edge in the JET divertor

NIST framework and roadmap for smart grid interoperability standards, release 4.0

Shunt active power filtering for smart appliances

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