Results 1 to 10 of about 2,148 (226)
A Review on Transformer - Less UPFC [PDF]
This paper is a review of an innovative technique with a new concept of transformer less unified power flow controller UPFC . The Transformer less UPFC is based on two cascade multilevel inverters CMIs , which reduce the complexity of the circuit.
Shaikh Mohammed Tauseef, S. M. Kulkarni
openaire +2 more sources
Congestion mitigation using UPFC
Transmission congestion is one of the most challenging issues in operation of deregulated electricity markets of today. This study investigates into benefit of unified power flow controller (UPFC) as a viable solution to the problem of congestion management.
Arun Kumar Reddy K., Shiv P. Singh
openaire +1 more source
Unified power flow controllers (UPFCs) are FACTS devices which can fulfil multiple power-flow control objectives, such as the need for reactive shunt compensation, phase shifting and series compensation. However, as they are quite expensive, they are not widely used.
F. R. Islam, H. R. Pota
openaire +1 more source
The impact of demand response programs on UPFC placement
Demand response (DR) and flexible AC transmission system (FACTS) devices can be effectively used for congestion management in power transmission systems. However, demand response program (DRP) implementation can itself affect the optimum location of FACTS devices, which is one of the main issues in power system planning.
Abbas Sharifi Nasab Anari +2 more
openaire +1 more source
OPF With SVC and UPFC Modeling for Longitudinal Systems
This paper presents a formulation of the Optimal Power Flow problem with an explicit modeling of Static Var Compensator (SVC) and Unified Power Flow Controller (UPFC) devices. The optimization problem is solved by using Sequential Quadratic Programming, where two convergence criteria and four different methods are studied to solve the quadratic ...
Palma-Behnke, R +4 more
openaire +3 more sources
Flexible AC Transmission Systems (FACTS) is an Alternating current transmission systems incorporating power electronic based and other static controllers with an aim to build flexibility in the system in order to enhance controllability and increase power transfer capability.FACTS Controller is a power electronic based system and other static equipment
openaire +2 more sources
Role of UPFC in Power Transmission Line
AbstractIn this work, the optimal placement and parameters of UPFC in Electrical Power transmission Systems is calculated. The FACTS are combination of controlled devices to increase reliability & stability of power networks. The flexible transmission devices are located in more places the working of parameters like impedance, voltage, and phase ...
P Sucharitha +3 more
openaire +1 more source
A detailed designed model for UPFC in PSCAD
Generally, there are two models for every flexible AC transmission system (FACTS) devices, detailed and phasor models. Detailed model is exact simulation of real one which is used multi level converters with switches and diodes, capacitor for DC link, transformers and loop controllers.
Jalal Khodaparast, Mojtaba Khederzadeh
openaire +1 more source
Optimal allocation of multi-type FACTS devices for mitigating wind power spillage with enhancing voltage stability and social welfare. [PDF]
Fawzy S, Abd-Raboh EE, Eladl AA.
europepmc +1 more source
Traveling-wave based fault location estimation in FACTS compensated transmission system: Recent status, challenges and future research directions. [PDF]
Mishra S, Gupta S, Yadav A.
europepmc +1 more source

