IPFC as a novel FACTS device

not only has the same the ability to directly control the flow of the target line as UPFC

but also realizes the orientation and quantitative interaction of power between different lines

balances the power flow of the transmission channel as well as and alleviates the power transmission voltage of the power system. For maximizing power flow adjustment capability

of the IPFC

its such work as site selection and capacity is an urgent issue to be solved. However

during the study of site selection and capacity of IPEC

the existing literature is mostly based on the method of sensitivity or intelligent algorithm optimization

which has no way to IPEC on the weakest transmission line as per the actual need of the project. Based on this

a two-stage step-by-step site selection method based on the integrated safety index of the line is proposed and

on this basis

themultiple target optimization capacity strategy of IPFC considering economy and safety is proposed with integrating safety performance of economic performance and safety margin of the installation capacity of IPFC. The effectiveness and accuracy of the proposedmethodareverifiedbythesimulationandcalculationexample.