Credibility Theory-Based Available Transfer Capability Assessment

Energies

Yanan Zheng²  Jin Yang¹  Zhaoguang Hu²  Ming Zhou⁴  Gengyin Li⁴  Paul Stewart³ 

[1] School of Engineering and Applied Science, Aston University, Birmingham B4 7ET, UK; E-Mail:;Department of Economy and Energy Supply & Demand Research, State Grid Energy Research Institute, Beijing 102200, China; E-Mail:;Department of Economy and Energy Supply & Demand Research, State Grid Energy Research Institute, Beijing 102200, China; E-Mail;State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China; E-Mails:

关键词: available transfer capability;    credibility theory;    random fuzzy simulation;    bootstrap method;   

DOI  :  10.3390/en8066059

来源: mdpi

【 摘 要 】

Since the development of large scale power grid interconnections and power markets, research on available transfer capability (ATC) has attracted great attention. The challenges for accurate assessment of ATC originate from the numerous uncertainties in electricity generation, transmission, distribution and utilization sectors. Power system uncertainties can be mainly described as two types: randomness and fuzziness. However, the traditional transmission reliability margin (TRM) approach only considers randomness. Based on credibility theory, this paper firstly built models of generators, transmission lines and loads according to their features of both randomness and fuzziness. Then a random fuzzy simulation is applied, along with a novel method proposed for ATC assessment, in which both randomness and fuzziness are considered. The bootstrap method and multi-core parallel computing technique are introduced to enhance the processing speed. By implementing simulation for the IEEE-30-bus system and a real-life system located in Northwest China, the viability of the models and the proposed method is verified.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.