Open AccessEfficient algorithm for transmission system energy loss allocation considering multilateral contracts and load variation
Author(s) -
Elmitwally Akram,
Eladl Abdelfattah,
Abdelkader Sobhy Mohamed
Publication year - 2015
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2015.0597
Subject(s) - generator (circuit theory) , transmission loss , superposition principle , electric power system , transmission (telecommunications) , computer science , power (physics) , maximum power transfer theorem , transmission system , power transmission , electric power transmission , mathematical optimization , control theory (sociology) , algorithm , mathematics , electrical engineering , engineering , telecommunications , mathematical analysis , physics , control (management) , quantum mechanics , artificial intelligence
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.