Harmonic emission limits and responsibilities at a point of connection

Bhattacharyya, S.; Cobben, Sjef; Ribeiro, Paulo F.; Kling, WL Wil

doi:10.1049/iet-gtd.2011.0376

Cited by 39 publications

(25 citation statements)

References 1 publication

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“…In [11], it is concluded that the attenuation effect becomes significant when the total harmonic distortion of voltage (THDV) as calculated in (17) is very high (exceeding 10%), which is unlikely to be observed in the LV network [29]. The diversity effect is due to the differences of harmonic current phase angles.…”

Section: Attenuation and Diversity Effectmentioning

confidence: 99%

Stochastic Residential Harmonic Source Modeling for Grid Impact Studies

Nijhuis

Ćuk

et al. 2017

Energies

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Abstract:With the introduction of more non-linear loads, e.g., compact fluorescent lamps, electric vehicles, photovoltaics, etc., the need to determine the harmonic impact of the residential load is rising, illustrated by the many studies performed on their harmonic impact. Traditionally, these studies are performed for a single new device and single penetration level, neglecting the harmonic interaction between new types of devices, as well as giving little information at which moment in time possible problems may arise. A composite approach to access the impact of harmonic sources on the distribution network is therefore proposed. This method combines a bottom-up stochastic modeling of the residential load with harmonic measurement data and harmonic load-flows all based on a scenario analysis. The method is validated with measurement data and shows a good prediction of the current level of harmonics in a residential neighborhood for the current situation. To demonstrate the applicability of the proposed method, case studies are performed on the IEEE European Low Voltage Test Feeder. These case studies show a marked difference between applying individual device-based models and a composite modeling approach, demonstrating why the proposed approach is an adequate method for the determination of the impact of new devices on the harmonics.

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Section: Attenuation and Diversity Effectmentioning

confidence: 99%

Stochastic Residential Harmonic Source Modeling for Grid Impact Studies

Nijhuis

Ćuk

et al. 2017

Energies

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“…Typical Dutch three-phase LV network is used for the residential network model [29]. Four feeders extend radially from a 400kVA delta-star transformer (400/230V, X/R ratio=3.2, no OLTC), each feeder having 14 supply buses.…”

Section: B Network Modelmentioning

confidence: 99%

“…To account for a worst-case scenario 12:00 pm workday load of month of June is used. To create load diversity, L3 of 1200W is introduced and it represents average household peak demand according to [29]. Both generation and load are at unity power factor.…”

Section: Generation and Load Model 1) Worst-case Scenario Modelmentioning

confidence: 99%

Microinverter Curtailment Strategy for Increasing Photovoltaic Penetration in Low-Voltage Networks

Gagrica

Nguyen

Kling

et al. 2015

IEEE Trans. Sustain. Energy

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Abstract--Transition towards smart distribution networks with high penetration of photovoltaics (PV) will involve incidental generation curtailment as an alternative to grid reinforcements. Micro-inverters are taking over popularity of string inverters in residential and some commercial areas mainly due to increased energy harvest. This paper demonstrates how micro-inverters with a modified overvoltage protection scheme could provide a reliable curtailment solution and accommodate additional PV capacity. Two wide-area curtailment schemes were proposed for a typical Dutch residential feeder with densely clustered PV. Firstly, a single worst-case scenario was used to demonstrate the capabilities of the proposed curtailment schemes: the distribution network operators can optimize between various priorities such as total feeder output, economic equality between connected parties, voltage levels, voltage unbalance and curtailment execution time. Secondly, a yearly comparison was made against conventional overvoltage protection and the results show 62-100% reduction in overvoltage losses.

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“…A typical LV network is consisted of 5 or 6 feeders with radial layouts, it can serve around 300 customers as each feeder has 50-60 customers [4]. In this paper, a network with 300 customers distributed in 5 feeders is built in MATLAB.…”

Section: Network Modelingmentioning

confidence: 99%

Monte Carlo Simulation for Assessing the Voltage Level and Losses with Photovoltaic and Electric Vehicle in Low Voltage Network

Xiang²,

Cobben³

2014

REPQJ

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Abstract.Livelab from Alliander is a program which started to measure electrical and power quality data in the Dutch distribution network since 2013. This paper presents a methodology to generate the residential load profiles by cumulative distribution function (CDF) based on Livelab measured data, then applying Monte Carlo simulation method, a statistic three phase Load Flow program is developed in order to investigate the voltage level and network losses (harmonic loss is considered) of a typical low voltage (LV) network with the consideration of variable loads and random locations. Then, the prospective impact to voltage level and losses due to the gridconnected photovoltaic power generation systems (PV) and electrical vehicles (EV) are discussed, Monte Carlo simulations are done with the different penetration rates of PV and EV, maximum capacity of grid-connected PVs and EVs can be estimated and the possible network losses are calculated.

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Harmonic emission limits and responsibilities at a point of connection

Cited by 39 publications

References 1 publication

Stochastic Residential Harmonic Source Modeling for Grid Impact Studies

Stochastic Residential Harmonic Source Modeling for Grid Impact Studies

Microinverter Curtailment Strategy for Increasing Photovoltaic Penetration in Low-Voltage Networks

Monte Carlo Simulation for Assessing the Voltage Level and Losses with Photovoltaic and Electric Vehicle in Low Voltage Network

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