Working and reflected active powers of harmonics generating single-phase loads

Toups, T. N.

doi:10.1109/isncc.2013.6604451

Cited by 9 publications

(7 citation statements)

References 2 publications

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“…Since the positive sequence and negative sequence components are mutually orthogonal, they transfer energy independently of each other [5]. Thus, active power is n p P P P (12) Similar to the harmonic case previously, since the supply voltage e is assumed to be symmetrical, the negative sequence voltage component at the load terminals is a result of the voltage drop across the source resistance from the negative sequence current.…”

Section: Reflected Active Power In Unbalanced Loadsmentioning

confidence: 97%

“…2. An illustration of a single phase rectifier supplying a DC motor from a 120V rms source referenced in [5] with active power P = 2097 W calculates the working active power Pw = 2235.8 W and reflected active power Pr = 138.8 W.…”

Section: Working and Reflected Active Powersmentioning

confidence: 99%

“…P w = P p . An illustration of a three-phase purely resistive unbalanced load with active power P = 100 kW calculated the working active power Pw = 105.6 kW and reflected active power Pr = 5.48 kW [5].…”

Section: Reflected Active Power In Unbalanced Loadsmentioning

confidence: 99%

“…This harmonic distortion and asymmetry in the power system causes additional system losses and load efficiency issues. Several methods have been proposed to pinpoint the sources of distortion [2] with additional regards to economics [3][4][5][6]. Thus, economic incentives, similar to power factor penalties, are needed to lower distortion and asymmetry.…”

Section: Introductionmentioning

confidence: 99%

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Advanced metering infrastructure's measurement of working, reflected, and detrimental active power in microgrids

Toups

2014

2014 IEEE Green Energy and Systems Conference (IGESC)

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With the increasing popularity of renewable energy sources and harmonic generating loads, issues with power quality can be addressed with the help of the advanced metering infra-structure (AMI). Power quality is a major issue with microgrids because they tend to have low short circuit power with higher levels of harmonic distortion and asymmetry than major power grids. Energy delivered to the customer by distorted and asymmetrical voltages and currents can be composed of a useful component and a component that can be harmful to customers and/or the utility. Unfortunately, traditional analog based energy meters are incapable of distinguishing these components and billing for them appropriately. Using a new concept of working, detrimental, and reflected active power, via the advanced metering infrastructure, sources of degradation can be pinpointed so entities responsible for harmonic distortion and asymmetry can be made aware of the issue. A model of a microgrid bus will demonstrate the con-sequences of distortion and asymmetry. Enforcing penalties can result in better voltage and current profiles thus increasing the overall efficiency of the microgrid for a minimal cost of software updates to AMI meters.

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Section: Reflected Active Power In Unbalanced Loadsmentioning

confidence: 97%

Section: Working and Reflected Active Powersmentioning

confidence: 99%

Section: Reflected Active Power In Unbalanced Loadsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Advanced metering infrastructure's measurement of working, reflected, and detrimental active power in microgrids

Toups

2014

2014 IEEE Green Energy and Systems Conference (IGESC)

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“…To reduce the load voltage rms variation with load power changes, the relative value of the short circuit power S sc in residential or commercial distribution systems should be sufficiently high, at least 20-times higher than the maximum load power. In such a situation, the relative value of the supply source resistance R s is low and the reflected active power P r can be in the range, as demonstrated in [3], of a single percent of the active power P or even lower. This sufficiently high value of the short circuit power S sc is needed to protect all users connected at the point of the common supply (PCS) against the supply voltage rms variations.…”

Section: Introductionmentioning

confidence: 99%

Working and reflected active powers of three-phase loads

Toups

2015

2015 International School on Nonsinusoidal Currents and Compensation (ISNCC)

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Unbalanced and/or harmonic generating loads have to be supplied with a working active power, which is higher than the active power measured at the load terminals. Consequently, energy providers of such loads are under paid for the energy delivered. The difference between the working active power and the common active power is referred to as the reflected active power. The reflected active power increases with the decline of the short circuit to load power ratio. Therefore, the reflected active power could be easily visible in weaker power systems, such as micro-grids in islanded mode or on terminals of very high power industrial loads, such as pulsing loads or arc furnaces. The load generated harmonics and/or load imbalance are the causes for the reflected active power. The paper presents results of studies on the dependence of the reflected active power on the relative short circuit power of the supply source.

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Designing a Dynamic Balancing Compensator for Unbalanced Loads in a Three Phase Power System

Toups

2019

2019 IEEE Green Energy and Smart Systems Conference (IGESSC)

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Working and reflected active powers of harmonics generating single-phase loads

Cited by 9 publications

References 2 publications

Advanced metering infrastructure's measurement of working, reflected, and detrimental active power in microgrids

Advanced metering infrastructure's measurement of working, reflected, and detrimental active power in microgrids

Working and reflected active powers of three-phase loads

Designing a Dynamic Balancing Compensator for Unbalanced Loads in a Three Phase Power System

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