Open AccessReliability evaluation of restructured power systems using a novel optimal power‐flow‐based approach
Author(s) -
Mehrtash Amir,
Wang Peng,
Goel Lalit
Publication year - 2013
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.2011.0655
Subject(s) - reliability engineering , electric power system , reliability (semiconductor) , renewable energy , computer science , power flow , power (physics) , process (computing) , restructuring , engineering , electrical engineering , physics , quantum mechanics , operating system , finance , economics
Power system planning and operation has been considerably affected by restructuring of power systems and high penetration of renewable energy resources. In the new environment, customers are at the centre of attention and their concerns need to be addressed properly. The conventional techniques are not usually able to address both segregation of power system components and uncertainty of renewable energy resources. A novel technique is proposed in this study to determine load point reliability in restructured power systems considering the effect of renewable generators. This technique is based on modified optimal power flow and represents generation and transmission system with their equivalent multistate models and investigates the effect of each one on the load point reliability, separately. Furthermore, this approach remarkably relieves the reliability evaluation process, especially when loads and generations are subject to changes in the power system. The proposed method can assist the planners in reaching an optimal load allocation plan by providing valuable information. The proposed approach is applied to the Roy Billinton test system to illustrate the applications and advantages of the new approach.