New planning principles for low voltage networks with a high share of decentralized generation

Harnisch, Sebastian; Philipp, Steffens; Henning, Thies Hans; Kevin, Cibis; Zdrallek, Markus; Bianca, Lehde

doi:10.1049/cp.2016.0661

Cited by 9 publications

(5 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…e power loss and reliability of the LV networks improved in the DNP problem considering the DGs in [20]. In [21], new planning principles are described for rural LV networks considering DGs to minimize total costs. In [22], optimal sizing, sitting, and scheduling of BSSs are calculated in an LV distribution system.…”

Section: Motivation and Aimmentioning

confidence: 99%

Simultaneous Planning of the Medium and Low Voltage Distribution Networks under Uncertainty: A Bi-Level Optimization Approach

Rastgou

Hosseini-Hemati

2022

International Transactions on Electrical Energy Systems

View full text Add to dashboard Cite

Distribution network expansion planning (DNEP) is one of the important matters in the field of planning and operation of electrical power systems. Since many costs and losses have occurred in the distribution networks, it has increased attention towards this network. The electrical energy distribution network is divided into two parts: the medium voltage (MV) network and the low voltage (LV) network. The main problem in this field is that planning is done either only on the MV network or only on the LV network. While planning in each of these networks has a significant effect on the other networks, this important case has not been considered in most research studies. Therefore, this study has tried to do integrated planning in the form of a bi-level model in the presence of different types of distributed generations (DGs) and consider the uncertainties of renewable sources and load demand in both MV and LV networks so that the planning and operation costs are minimized. In the proposed bi-level model, the upper-level section aims to minimize the investment and the operation cost of the MV network, and the lower-level problem minimizes the investment and the operation cost of the LV network considering the DGs and pollution emission. The obtained results show the effectiveness of the proposed model.

show abstract

Section: Motivation and Aimmentioning

confidence: 99%

Simultaneous Planning of the Medium and Low Voltage Distribution Networks under Uncertainty: A Bi-Level Optimization Approach

Rastgou

Hosseini-Hemati

2022

International Transactions on Electrical Energy Systems

View full text Add to dashboard Cite

show abstract

“…A much higher influence of the flexibility options can be seen in the grid reinforcement costs: the RES-option may save up to 239 kEUR (85 %), the CES-option 232 kEUR (83 %), the options cosϕ(P) and Q(V) 220 kEUR (79 %) and the PCR-option 30 kEUR (32 %) of the grid expansion costs until 2025. Thus, all options, except the PCR-option, have a higher potential to reduce grid expansion costs as the 58 % reported by [34] for static feed-in management, in which the active power of the PV system is limited to 60 %, which from the DSO's perpective is very similar to the RES option. The comparison with [34], shows also that the results presented in this study are consistent, as the RES-option (50 % feed-in limit), shows higher saving potential, than the static feed-in (60 % feed-in limit) management option of [34].…”

Section: Economic Assessmentmentioning

confidence: 99%

Techno-Economic Assessment of Flexibility Options Versus Grid Expansion in Distribution Grids

Resch

Bühler

Schachler

et al. 2021

IEEE Trans. Power Syst.

View full text Add to dashboard Cite

In this paper five different flexibility options are analysed from a techno-economic perspective as alternatives to traditional grid expansion for a specific distribution grid in Germany. The options are: two reactive power control strategies with photovoltaic inverters (as a function of the power feed-in, or of the voltage at the connection point), one residential and two large scale battery storage applications (primary control reserve with autonomous reactive power control or self consumption maximisation strategy with autonomous reactive power control). For the pilot grid located in Southern Germany a photovoltaic expansion pathway is determined. The main goal of this work is to quantify the grid expansion actions that can be avoided by applying these five flexibility options for the assumed expansion pathway, focusing on large scale battery storages. It is shown that the five flexibility options increase the hosting capacity for PV systems, compared to a scenario without, by up to 45 %. Furthermore, the results of the economic assessment indicate that the analysed flexibility options might be a viable alternative to traditional grid expansion as all of them show a cost reduction potential for the pilot region. These results could encourage DSOs to consider the integration of additional PV and battery storage systems not as a problem which triggers grid expansion, but as part of the solution reducing future grid expansion costs.

show abstract

“…On the basis of this information, suitable conventional and innovative planning measures are selected, used to develop various target grid planning studies, subsequently compared, and finally evaluated on the basis of various criteria. The result is an optimal target grid planning which is used as the basis for the implementation [12][13][14][15][16].…”

Section: Basic Planning Stepsmentioning

confidence: 99%

“…CI and HPs play an increasingly important role in the dimensioning of urban LV grids. Furthermore, according to [16], decentralized energy conversion systems such as photovoltaic systems (PVSs) are particularly relevant for grid planning of rural and suburban areas.…”

Section: New Loads In Urban Low-voltage Gridsmentioning

confidence: 99%

“…In general, LV grids are dimensioned for certain OPs, i.e., certain grid use cases. The two most common OPs are "peak generation" (PG, or OP-PG) and "peak load" (PL, or OP-PL) [14][15][16]. The OP-PG defines a summer day on which, for example, the highest feed-in from decentralized PVSs and minimum power consumption can be expected at midday.…”

Section: Operating Pointsmentioning

confidence: 99%

See 1 more Smart Citation

Development of Planning and Operation Guidelines for Strategic Grid Planning of Urban Low-Voltage Grids with a New Supply Task

et al. 2021

View full text Add to dashboard Cite

In contrast to rural distribution grids, which are mostly “feed-in oriented” in terms of electrical power, urban distribution grids are “load oriented”, as the number of customer connections and density of loads in urban areas is significantly higher than in rural areas. Taking into account the progressive electrification of the transport and heating sector, it is necessary to assess the required grid optimization or expansion measures from a conventional, as well as an innovative point of view. This is necessary in order to be able to contain the enormous investment volumes needed for transforming the energy system and aligning the infrastructures to their future requirements in time. Therefore, this article first explains the methodological approach of allocating scenarios of the development of electric mobility and heat pumps to analyzed grids. The article continues with describing which power values need to be applied and which conventional and innovative planning measures are available for avoiding voltage band violations and equipment overloads within the framework of strategic grid planning. Subsequently, the results of grid planning studies are outlined and evaluated with an assessment model that evaluates capital as well as operational costs. On this basis, planning and operation guidelines for urban low-voltage grids are derived. The main result is that low-voltage grids can accommodate charging infrastructure for electric mobility, as well as heat pumps to a certain degree. In addition, it is concluded that conventional planning measures are not completely avoidable, but can be partially avoided or deferred through dynamic load management.

show abstract

New planning principles for low voltage networks with a high share of decentralized generation

Cited by 9 publications

References 1 publication

Simultaneous Planning of the Medium and Low Voltage Distribution Networks under Uncertainty: A Bi-Level Optimization Approach

Simultaneous Planning of the Medium and Low Voltage Distribution Networks under Uncertainty: A Bi-Level Optimization Approach

Techno-Economic Assessment of Flexibility Options Versus Grid Expansion in Distribution Grids

Development of Planning and Operation Guidelines for Strategic Grid Planning of Urban Low-Voltage Grids with a New Supply Task

Contact Info

Product

Resources

About