Multi-phase switching in distribution grids with unbalanced loads and distributed energy resources

2021 ◽  
Author(s):  
Nicole Urim Segal
Keyword(s):  
Energy Resources ◽  
Distributed Energy Resources ◽  
Distributed Energy ◽  
Phase Switching ◽  
Multi Phase ◽  
Unbalanced Loads ◽  
Distribution Grids

scholarly journals Voltage Estimation in Low-Voltage Distribution Grids with Distributed Energy Resources

2021 ◽  
pp. 1-1
Author(s):  
Marija Markovic ◽  
Amirhossein Sajadi ◽  
Anthony Florita ◽  
Robert Cruickshank III ◽  
Bri-Mathias Hodge
Keyword(s):  
Low Voltage ◽  
Energy Resources ◽  
Distributed Energy Resources ◽  
Voltage Distribution ◽  
Distributed Energy ◽  
Distribution Grids

Distribution Static Compensators and their Applications in Microgrids

2017 ◽  
pp. 87-141
Author(s):  
Ahmed Abu-Siada ◽  
Mohammad A. S. Masoum ◽  
Yasser Alharbi ◽  
Farhad Shahnia ◽  
A .M. Shiddiq Yunus
Keyword(s):  
Quality Improvement ◽  
Storage Systems ◽  
Voltage Regulation ◽  
Energy Resources ◽  
Distributed Energy Resources ◽  
Distributed Energy ◽  
Unequal Distribution ◽  
Power Quality Improvement ◽  
And Control ◽  
Unbalanced Loads

Microgrids are clusters of distributed energy resources, energy storage systems and loads which are capable of operating in grid-connected as well as in offgrid modes. In the off-grid mode, the energy resources supply the demand while maintaining the voltage and frequency within acceptable limits whereas in the gridconnected mode, the energy resources supply the maximum or nominal power and the network voltage and frequency is maintained by the grid. This chapter first summarizes the structure and control principles of microgrids. It then briefly introduces the structures and control perspectives of distribution static compensators (DSTATCOMs). Finally, some applications of DSTATCOMs are discussed in microgrids. The introduced applications are power quality improvement due to the presence of nonlinear and unbalanced loads, voltage regulation and balancing, and interphase power circulation in the case of the presence of single-phase energy resources with unequal distribution amongst phases. Each application is illustrated by examples, realized in PSCAD/EMTDC.

scholarly journals Technical, Economic, Social and Regulatory Feasibility Evaluation of Dynamic Distribution Tariff Designs

Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2860
Author(s):  
Kristoffer Christensen ◽  
Zheng Ma ◽  
Bo Nørregaard Jørgensen
Keyword(s):  
Evaluation Method ◽  
Energy Resources ◽  
Distributed Energy Resources ◽  
Distribution Grid ◽  
Distributed Energy ◽  
Dynamic Distribution ◽  
Four Dimensions ◽  
Design And Implementation ◽  
Feasibility Evaluation ◽  
Distribution Grids

The increasing number of distributed energy resources in the distribution grids creates the risk of grid congestion and the high cost of grid expansion. The implementation of the dynamic distribution grid tariffs can potentially avoid grid congestion. Meanwhile, the design and implementation of any distribution tariff need to consider and match the regional/national requirements. However, there is no sufficient evaluation method available to review and evaluate the feasibility of the dynamic distribution tariffs. Therefore, this paper introduces a feasibility evaluation method with four dimensions of technical, economic, social, and regulatory to review dynamic distribution tariffs. The literature on dynamic distribution tariffs is collected, and 29 dynamic distribution tariffs are selected and further categorized into five attributes of rationale, cost drivers, dynamics, events, and active demand. The evaluation results show that the time-of-use tariff is the most feasible dynamic distribution tariff, and the review of a proposed future distribution tariff model in Denmark verifies the evaluation method and results. The developed feasibility evaluation method for dynamic distribution tariffs can ensure the design and implementation of a dynamic distribution tariff to be feasible and applicable in a region.

Power Quality Impact of Distributed Energy Resources in Low Voltage Distribution Grids

2021 ◽  
Author(s):  
Jone Ugarte Valdivielso ◽  
Abel Thomas ◽  
Jayakrishnan Radhakrishnan Pillai ◽  
Sanjay K Chaudhary
Keyword(s):  
Power Quality ◽  
Low Voltage ◽  
Energy Resources ◽  
Distributed Energy Resources ◽  
Voltage Distribution ◽  
Distributed Energy ◽  
Distribution Grids
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