Research Article
An Improved Ant Colony-Based Alternate Path Selection Method for Wide-Area Protection System in Optical Communication Network of Power Grid
@INPROCEEDINGS{10.1007/978-3-030-32216-8_39, author={Hailin Gu and Xing Huang and Li Li and Ruowei Li and Jinghua Yao}, title={An Improved Ant Colony-Based Alternate Path Selection Method for Wide-Area Protection System in Optical Communication Network of Power Grid}, proceedings={Simulation Tools and Techniques. 11th International Conference, SIMUtools 2019, Chengdu, China, July 8--10, 2019, Proceedings}, proceedings_a={SIMUTOOLS}, year={2019}, month={10}, keywords={Wide-area protection system Path selection Alternate path Ant colony}, doi={10.1007/978-3-030-32216-8_39} }- Hailin Gu
Xing Huang
Li Li
Ruowei Li
Jinghua Yao
Year: 2019
An Improved Ant Colony-Based Alternate Path Selection Method for Wide-Area Protection System in Optical Communication Network of Power Grid
SIMUTOOLS
Springer
DOI: 10.1007/978-3-030-32216-8_39
Abstract
Wide-area protection system has a strict requirement on real-time and reliability of communication network. Currently, the path selection algorithm that meets the requirements of wide-area protection system communication can calculates an optimal master path while meeting the requirements on real-time and reliability. After some link or node in the master path fails, the router in the communication network can detects the fault of the link or node and needs to re-calculate a transmission path and re-release the path information. Unfortunately, the sum of the fault detection time, the new path calculation time and the update time of new path has exceeded the tolerance delay of wide-area protection system. For solving this problem, 1 + 1 protection scheme is proposed in this paper. We employs an improved ant colony algorithm to calculate the master path and the alternate path, which meet the real-time and reliability requirement of wide-area protection system. As soon as the master path fails, it will immediately launch the alternate path, so that it can save the delay spent in detecting the fault of link or node and re-release the path information. Finally, a case study is carried out and it is proved that the improved ant colony can find the optimal master and alternate paths.
