Voltage Dependent Pricing in DC Distribution Grids
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Date
2013
Publication Type
Conference Paper
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yes
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Abstract
A dominance of fluctuating renewable energy resources requires changes in the electric power system. The introduction of nodal variable prices to balance supply and demand is one option that requires the price to be known to all devices. In this paper a new method to determine the price based on the local nodal voltage is introduced. As more and more devices use direct current (DC) internally, the advantages of DC distribution grids are used. They allow a straight forward implementation of micro-grids, increasing reliability with distributed generation. Two different price curves are introduced: The 1/U price curve removes the loss-based market distortion in the grid but needs an additional nominal price for proper operation. It can be used in transmission and distribution grids. Secondly a linear price curve is introduced. The advantage of this price curve is that no additional communication is needed. It can be used in households as single price signal for hybrid AC/DC devices with only little additional costs.
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Publication status
published
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Book title
2013 IEEE Grenoble Conference
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Pages / Article No.
6652227
Publisher
IEEE
Event
IEEE Powertech Conference 2013
Edition / version
Methods
Software
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Date created
Subject
Smart Grids; Power System; DC; Load Management; Distributed Power Generation; Power Distribution; Nodal Prices
Organisational unit
03559 - Andersson, Göran (emeritus)