Residential Loads Modeling by Norton Equivalent Model of Household Loads

Ghorbani, Mohammad; Rad, Marjan Shafiee; Mokhtari, Hossein; Honarmand, Mohammadmahdi; Youhannaie, M.

doi:10.1109/appeec.2011.5748819

Cited by 22 publications

(12 citation statements)

References 11 publications

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“…To develop the Norton model for each appliance at least two measurements at different operating condition of the supply system are needed. More details about how to achieve the Norton equivalent model parameters using measurement results is described in previous sections and [16][17][18][19][20].…”

Section: Residential Commercial and Office Loads Norton Equivalent Mmentioning

confidence: 99%

Impact of Harmonics on Power Quality and Losses in Power Distribution Systems

Ghorbani

Mokhtari

2015

IJECE

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This paper investigates the harmonic distortion and losses in power distribution systems due to the dramatic increase of nonlinear loads. This paper tries to determine the amount of the harmonics generated by nonlinear loads in residential, commercial and office loads in distribution feeders and estimates the energy losses due to these harmonics. Norton equivalent modeling technique has been used to model the nonlinear loads. The presented harmonic Norton equivalent models of the end user appliances are accurately obtained based on the experimental data taken from the laboratory measurements. A 20 kV/400V distribution feeder is simulated to analyze the impact of nonlinear loads on feeder harmonic distortion level and losses. The model follows a “bottom-up” approach, starting from end users appliances Norton equivalent model and then modeling residential, commercial and office loads. Two new indices are introduced by the authors to quantize the effect of each nonlinear appliance on the power quality of a distribution feeder and loads are ranked based on these new defined indices. The simulation results show that harmonic distortion in distribution systems can increase power losses up to 20%.

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Section: Residential Commercial and Office Loads Norton Equivalent Mmentioning

confidence: 99%

Impact of Harmonics on Power Quality and Losses in Power Distribution Systems

Ghorbani

Mokhtari

2015

IJECE

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“…Figure 2 shows the circuit of a diode rectifier with a capacitive output filter which is an example of a nonlinear load with harmonic voltage source behaviour. This kind of circuit is present in almost all residential and commercial loads, such as computers, video monitors, TV sets, and electronic lamp ballasts [ 16 ].…”

Section: Power Multivector: Control Strategymentioning

confidence: 99%

Control of Disturbing Loads in Residential and Commercial Buildings via Geometric Algebra

Castilla

2013

The Scientific World Journal

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Many definitions have been formulated to represent nonactive power for distorted voltages and currents in electronic and electrical systems. Unfortunately, no single universally suitable representation has been accepted as a prototype for this power component. This paper defines a nonactive power multivector from the most advanced multivectorial power theory based on the geometric algebra (GA). The new concept can have more importance on harmonic loads compensation, identification, and metering, between other applications. Likewise, this paper is concerned with a pioneering method for the compensation of disturbing loads. In this way, we propose a multivectorial relative quality index δ~ associated with the power multivector. It can be assumed as a new index for power quality evaluation, harmonic sources detection, and power factor improvement in residential and commercial buildings. The proposed method consists of a single-point strategy based of a comparison among different relative quality index multivectors, which may be measured at the different loads on the same metering point. The comparison can give pieces of information with magnitude, direction, and sense on the presence of disturbing loads. A numerical example is used to illustrate the clear capabilities of the suggested approach.

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“…Work [6] deals with current harmonics in power grid, if a large number of different appliances is considered. Some perspective on modeling of household appliances provides article [7]. The possible effect of new household appliances on power quality is described in articles [8,9].…”

Section: Introductionmentioning

confidence: 99%

The effects of connecting high amounts of nonlinear appliances to the supply network

Kus

Pikous

2015

2015 IEEE 5th International Conference on Power Engineering, Energy and Electrical Drives (POWERENG)

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The increase in nonlinear appliances in households is largely driven by their affordability. In the case of lighting appliances, it is necessary to use energy-saving light sources. A case study of the possibility of simultaneous connection of large amounts of lighting appliances and other nonlinear appliances used in households is conducted in this paper.A variant of distribution systems in housing estate is selected as an example. Simultaneous operation of a large number of these appliances in certain time periods and thus possible voltage distortion caused by higher order harmonics can be expected. This paper deals with two variants of possible load. In the first case the scenario with probable load is chosen. In the second case it is verified for extreme harmonics influence. Calculations are performed for the radial and the meshed network. In the particular case, calculations are verified by measurement.

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Residential Loads Modeling by Norton Equivalent Model of Household Loads

Cited by 22 publications

References 11 publications

Impact of Harmonics on Power Quality and Losses in Power Distribution Systems

Impact of Harmonics on Power Quality and Losses in Power Distribution Systems

Control of Disturbing Loads in Residential and Commercial Buildings via Geometric Algebra

The effects of connecting high amounts of nonlinear appliances to the supply network

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