Impact Assessment of Distributed Solar PV Integration in Low-Voltage Unbalanced Distribution Network: A Case Study

2018 ◽  
Author(s):  
Balveer Singh ◽  
Naran M. Pindoriya
Keyword(s):  
Impact Assessment ◽  
Low Voltage ◽  
Distribution Network ◽  
Solar Pv

scholarly journals Power losses evaluation in low voltage distribution network: a case study of 250 kVA, 11/0.416 kV substation

2022 ◽  
Vol 25 (1) ◽  
pp. 35
Author(s):  
Emad Hussen Sadiq ◽  
Rakan Khalil Antar ◽  
Safer Taib Ahmed
Keyword(s):  
Distribution System ◽  
Low Voltage ◽  
Distribution Network ◽  
Distribution Networks ◽  
System Capacity ◽  
Power Losses ◽  
Three Phase ◽  
The Right ◽  
A Current

Nowadays, the electrical system is more complicated duet to the continuous growing. Power losses is the biggest challenges for distribution network operators. There are several causes for technical losses. Losses caused by unbalanced phase current are one of the main reasons which can be minimized by small investment through dedicating a technical line staff. As a result of connecting many single loads to three phase four wire power supplies, the current flowing in each phase will be unequal and accordingly there will be a current flowing in the neutral wire. Unbalancing currents in phases can lead to increase the conductor temperature and accordingly the conductor resistance is higher which contribute to increase the power losses. Loss reduction can lead to enormous utility saving. Besides, it increases system capacity and save more money which can be used later for future planted system. This study concentrated on the amount of copper losses in distribution networks as a result of unequal loading of the three phases four wires network. The distribution network is more efficient and more economic assuming that the right procedure is applied to balance the distribution system and achieve the required calculations which require a little investment.

Distribution network impact assessment of low voltage distributed generation

2005 ◽  
Vol 8 (3-4) ◽  
pp. 355-376
Author(s):  
Raphaël Caire ◽  
Nicolas Retiere ◽  
Nouredine Hadjsaid ◽  
Sylvian Martino
Keyword(s):  
Impact Assessment ◽  
Distributed Generation ◽  
Low Voltage ◽  
Distribution Network

scholarly journals Economic Planning of the Operation of PV-Connected Distribution Network Using a Probabilistic Model for Extending the Network Lifetime

2021 ◽  
Vol 16 (1) ◽  
pp. 97-103
Author(s):  
Amir Majid
Keyword(s):  
Network Lifetime ◽  
Probabilistic Model ◽  
Ad Hoc ◽  
Low Voltage ◽  
Distribution Network ◽  
Threshold Value ◽  
Power Sharing ◽  
Load Demand ◽  
Intuitive Method

The power sharing of PV sets with battery banks in a low voltage distribution network, is optimized with the aim of extending network lifetime. The network lifetime is analyzed using a probabilistic model, in which each PV-battery set has a certain failure probability of supplying power to any load demand center. This probability is assumed to be of normal distribution, that is related to other factors such as power rating, coverage availability, and battery DoD. To extend network lifetime, redundancies in power sharing are removed by activating different groups of PV sets at different times, with durations depending on their joint Gaussian probabilities in supplying the load demands. The contribution of each PV-battery set, is estimated in an intuitive method according to the evaluated probabilities, in which the network is converted into source nodes and load nodes distributed as an ad hoc network, with formulated Gaussian probabilities. An economic load dispatch is then evaluated among the selected PV sets of probabilities higher than a predefined threshold value, to optimize power sharing of the load. A case study of several PV-battery sets supplying several distributed loads, is analyzed and simulated, with formulated joint probabilities. It is found that lifetime is extended by 190% for three PV sets supplying two load centers.

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