Reliability improvement in distribution systems employing an integrated voltage sag mitigation method using binary gravitational search algorithm
来源期刊：中南大学学报(英文版)2013年第11期
论文作者：Salman Nesrullah Mohamed Azah Shareef Hussain
文章页码：3002 - 3014
Key words：voltage sag; reliability; network reconfiguration; DSTATCOM; gravitational search algorithm
Abstract: A method for improving the level of reliability of distribution systems is presented by employing an integrated voltage sag mitigation method that comprises a two-staged strategy, namely, distribution network reconfiguration (DNR) followed by DSTATCOM placement. Initially, an optimal DNR is applied to reduce the propagated voltage sags during the test period. The second stage involves optimal placement of the DSTATCOM to assist the already reconfigured network. The gravitational search algorithm is used in the process of optimal DNR and in placing DSTATCOM. Reliability assessment is performed using the well-known indices. The simulation results show that the proposed method is efficient and feasible for improving the level of system reliability.
Salman Nesrullah, Mohamed Azah, Shareef Hussain
(Department of Electrical, Electronics and Systems Engineering, Faculty of Engineering and
Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Malaysia)
Abstract:A method for improving the level of reliability of distribution systems is presented by employing an integrated voltage sag mitigation method that comprises a two-staged strategy, namely, distribution network reconfiguration (DNR) followed by DSTATCOM placement. Initially, an optimal DNR is applied to reduce the propagated voltage sags during the test period. The second stage involves optimal placement of the DSTATCOM to assist the already reconfigured network. The gravitational search algorithm is used in the process of optimal DNR and in placing DSTATCOM. Reliability assessment is performed using the well-known indices. The simulation results show that the proposed method is efficient and feasible for improving the level of system reliability.
Key words:voltage sag; reliability; network reconfiguration; DSTATCOM; gravitational search algorithm
