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3篇 您的检索式:作者名="Reza Sirjani"
    题名 作者 年代 出处 被引量
1Comparative study of effectiveness of different var compensation devices in large-scale power networks显示文摘A comparison of the effectiveness of installing reactive power compensators,such as shunt capacitors,static var compensators(SVCs),and static synchronous compensators(STATCOMs),was presented in large-scale power networks.A suitable bus was first identified using modal analysis method.The single shunt capacitor,single SVC,and single STATCOM were installed separately on the most critical bus.The effects of the installation of different devices on power loss reduction,voltage profile improvement,and voltage stability margin enhancement were examined and compared for 57-and 118-bus transmission systems.The comparative study results show that SVC,and STATCOM are expensive compared to shunt capacitor,yet the effect of installing STATCOM is better than SVC and the effect of installing SVC is better than that of shunt capacitor in achieving power loss reduction,voltage profile improvement and voltage stability margin enhancement.Reza Sirjani Azah Mohamed Hussain Shareef 2013Journal of Central South University2013,20,3:3
2A global harmony search algorithm for finding optimal capacitor location and size in distribution networks显示文摘Shunt capacitors are broadly applied in distribution systems to scale down power losses, improve voltage profile and boost system capacity. The amount of capacitors added and location of deployment in the system highly determine the advantage of compensation. A novel global harmony search(GHS) algorithm in parallel with the backward/ forward sweep power flow technique and radial harmonic power flow was used to investigate the optimal placement and sizing of capacitors in radial distribution networks for minimizing power loss and total cost by taking account load unbalancing, mutual coupling and harmonics. The optimal capacitor placement outcomes show that the GHS algorithm can reduce total power losses up to 60 k W and leads to more than 18% of cost saving. The results also demonstrate that the GHS algorithm is more effective in minimization of power loss and total costs compared with genetic algorithm(GA), particle swarm optimization(PSO) and harmony search(HS) algorithm. Moreover, the proposed algorithm converges within 800 iterations and is faster in terms of computational time and gives better performance in finding optimal capacitor location and size compared with other optimization techniques.Reza Sirjani Melkamu Gamene Bade 2015Journal of Central South University2015,22,5:2
3Vulnerability anal?ysis of networks to detect multi phase attacks using the actor-based language显示文摘Rebeca Hamid Reza Shabriari Mohammad Sadegh Makarem Marjan Sirjani RasoolJalili Ali Movaghar 2010Computers and Electrical Engineering2010,36,9:1
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