This research proposes a differential analysis for determining the suitable location for FACTS devices (TCSC) and TCPAR to enhance network security during single-line outages (N-1). To ensure optimal device deployment when dealing with sensitivity variables, the proposed technique is based on performance index (PI) and ranking index (RI). The severity of the line in the network is ranked by the contingency case. The system loading level for a specific outage is computed using RI. Differentiating the proposed performance index (PI) applied to system parameters of TCSC and TCPAR yields sensitivity factors. The sensitivity factors determined by RI are utilized to determine best placement of TCSC and TCPAR devices. The goal of this problem is to reduce line overloads on transmission lines in the event of a network outage. The proposed technique is tested in a MATLAB environment on IEEE 5 bus and 14 bus networks.
This paper presents, optimal location for deployment of Unified Power Flow Controller (UPFC) and Interline Power Flow Controller (IPFC) in network considering sensitivity of line flows under single contingency. A sensitive approach is proposed which is considered based on Ranking Index (RI) and Performance Index (PI). A unitary change of power flow (PF) in each transmission line after outage of a branch element can be obtained from proposed index. The proposed Index is used to quantify loading level of network after a given outage. Contingencies are structured in descending order depending on value of proposed Index. Sensitivity factors are obtained by differentiating PF indices subject to parameters of UPFC and IPFC devices. Optimal deployment of UPFC and IPFC device is considered by the value of sensitivity factors attained by considering line outages in order of their severities which is given by proposed Index. The efficacy of proposed approach is computed and programmed on 5bus and IEEE 14bus networks under MATLAB environment.
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