Impact of solar photovoltaics on the low‐voltage distribution network in New Zealand

Watson, Jeremy D.; Watson, N.R.; Santos-Martín, David; Wood, Alan; Lemon, S.; Miller, Allan

doi:10.1049/iet-gtd.2014.1076

Cited by 104 publications

(50 citation statements)

References 22 publications

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“…As can be seen in Figure 3B, the active power, reactive power, voltage, resistance, and reactance of the nodes in the calculating path from node 0 to a certain overvoltage node can be defined in (2).…”

Section: Calculation Of the Transform Matrixmentioning

confidence: 99%

“…Decrement of the photovoltaic (PV) installation cost leads to the wide application of the rooftop photovoltaic systems (RPSs) in the low-voltage distribution networks (LVDNs). [1][2][3] It has been reported that the total worldwide capacity of residential PV units will rise to 1.8 TW by 2040. 4 Application of the RPSs relieves the loading of the grid 5 but affects the voltage quality in the LVDNs.…”

Section: Introductionmentioning

confidence: 99%

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A multilevel overvoltage prevention strategy for the distribution networks with high penetration of rooftop photovoltaic systems

Fan

Huang

Tai

et al. 2019

Int Trans Electr Energ Syst

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Summary The high penetration of rooftop photovoltaic systems (RPSs) causes the overvoltage issues in the low‐voltage distribution networks (LVDNs). This paper proposes a multilevel overvoltage prevention strategy to solve the assigned issues. The proposed strategy consists of three levels. An optimal approaching method is adopted at the primary level to minimize the total curtailed active power in the LVDNs. An economy sensitive equalization method is employed at the secondary level to equalize the curtailed active power of each RSP. A comprehensive reactive power regulation method is utilized at the tertiary level to minimize the curtailed active power of each photovoltaic (PV) inverter. Above advanced methods are implemented by the cooperation of voltage management agents. The effectiveness and efficiency of the proposed strategy are validated by a demonstration project in Nanjing, China. The test results show that the proposed strategy decreases the curtailed active power in the LVDNs and avoids the risk of uneconomical and unallowable operation for the PV inverters. The application of the proposed strategy enhances the reliability and economy of the LVDNs with high penetration of RPSs.

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Section: Calculation Of the Transform Matrixmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A multilevel overvoltage prevention strategy for the distribution networks with high penetration of rooftop photovoltaic systems

Fan

Huang

Tai

et al. 2019

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

show abstract

“…We note here that other socio-demographic information can be used if available (for example Acorn 5 ). We use CTB as it is publicly available 6 and it allows us to identify neighbourhoods that have a higher percentage of larger properties.…”

Section: Adding Socio-demographic Informationmentioning

confidence: 99%

Green neighbourhoods in low voltage networks: measuring impact of electric vehicles and photovoltaics on load profiles

Hattam

Greetham

2016

J. Mod. Power Syst. Clean Energy

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In the near future, various types of low-carbon technologies (LCTs) are expected to be widely employed throughout the United Kingdom. However, the effect that these technologies will have at a household level on the existing low voltage (LV) network is still an area of extensive research. We propose an agent based model that estimates the growth of LCTs within local neighbourhoods, where social influence is imposed. Real-life data from an LV network is used that comprises of many socially diverse neighbourhoods. Both electric vehicle uptake and the combined scenario of electric vehicle and photovoltaic adoption are investigated with this data. A probabilistic approach is outlined, which determines lower and upper bounds for the model response at every neighbourhood. This technique is used to assess the implications of modifying model assumptions and introducing new model features. Moreover, we discuss how the calculation of these bounds can inform future network planning decisions.

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“…The overvoltage problems are mitigated by line drop compensation. It does not talk about the improvement of voltage sag problems in the distribution system [4]. S. Porkar et al discusses the impact of DG on IEEE 30-BUS system, and the voltage is 33kV.…”

Section: Introductionmentioning

confidence: 99%

The economic benefit analysis to the consumer and utility due to PV generation connected to the radial distribution system

Lincy

Ponnavaikko²,

Anselm³

2018

IJET

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During the recent past, the interest towards adoption of Distributed Generation (DG) has increased dramatically among the electric power system utilities. It has been well established that installation of PV Generation at the load points in a distribution system is excellent advantages for both consumers and the utilities. The question arises whether the maximum beneficiary is the Utility or the consumer and who has to bear the cost. This research analyses the economics of the DG with PV Systems, taking a typical 400V distribution system. A detailed procedure adopted for performing the economic analysis is presented in this paper. Benefits considered includes Saving in the energy losses, Energy substitute by the PV system, Capacity release in the Feeders and the Transformer. The PV system is installed at the selected consumer load points, based on the size and location of the loads. Discounted Cash Flow technique is used to assess the economics of the system, by computing the Internal Rate of Return. The paper presents the advantages of using PV Generating systems in the Power Distribution System, quantifying economic benefits both for the Utilities and for the Customers with supporting data.

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Impact of solar photovoltaics on the low‐voltage distribution network in New Zealand

Cited by 104 publications

References 22 publications

A multilevel overvoltage prevention strategy for the distribution networks with high penetration of rooftop photovoltaic systems

A multilevel overvoltage prevention strategy for the distribution networks with high penetration of rooftop photovoltaic systems

Green neighbourhoods in low voltage networks: measuring impact of electric vehicles and photovoltaics on load profiles

The economic benefit analysis to the consumer and utility due to PV generation connected to the radial distribution system

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