Efficient algorithm for transmission system energy loss allocation considering multilateral contracts and load variation

This study proposes a new analytical method for transmission power loss allocation in hybrid market power systems. It is based on circuit laws and the orthogonal projection. In this method, the current flow in each branch is divided into two components. The first one is due to the power transfer fro...

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Bibliographic Details
Published in:IET generation, transmission & distribution transmission & distribution, 2015-12, Vol.9 (16), p.2653-2663
Main Authors: Elmitwally, Akram, Eladl, Abdelfattah, Abdelkader, Sobhy Mohamed
Format: Article
Language:English
Subjects:
Algorithms
Allocations
bilateral contracts
circuit laws
circulating currents
Contracts
electrical contracting
generator buses
Generators
hybrid market power systems
load regulation
load variation
Mathematical analysis
Multilateral
multilateral contracts
Networks
no‐load currents
orthogonal projection
Power loss
power transfer
power transmission control
superposition principle
time variation
transmission network power loss allocation algorithm
transmission system energy loss allocation
voltage differences
wind generation
wind power plants
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Summary:This study proposes a new analytical method for transmission power loss allocation in hybrid market power systems. It is based on circuit laws and the orthogonal projection. In this method, the current flow in each branch is divided into two components. The first one is due to the power transfer from generators to loads. The second component is due to the voltage differences between generator buses. The later currents are called no-load or circulating currents. These current components are computed by using the superposition principle. The responsibility of each load and generator to power losses in each branch of the network is derived analytically. Hence, the share of each load or generator in the overall transmission network losses is estimated. Furthermore, the impact of bilateral/multilateral contracts is included in the transmission network power loss allocation algorithm. The method is extended to consider the time variation of loads and wind generation. The proposed method is applied to four test systems and compared with other methods.
ISSN:1751-8687
1751-8695
1751-8695
DOI:10.1049/iet-gtd.2015.0597