Abstract
The Optimal Unified Power Flow Controller (OUPFC) is an efficient series-shunt controller that is incorporated to system to control the power flow through the transmission lines. Modeling of such controller is a challenge task due the required complex modifications of the Newton Raphson power (NR) flow to consider the parameters of the OUPFC. The aim of this paper includes (1) presenting an efficient novel model of the OUPFC into NR power flow, (2) avoiding the complicities of modeling the parameters of the OUPFC into power flow solution, (3) multi-control modes of the OUPFC is established to control the active and reactive powers concurrently or separately and, (4) handling the violation of the operating constraints by using developed methods. The proposed model is based on the power injection representation where the parameters of the OUPFC are represented as injected loads as a function of the pre-requested control variables (specified values). Therefore, the complicities of including its parameters are reduced. The developed methods for handling the violations of the operating constraints are based on modifying the specified values as a function of the maximum limits of the operating constraints. The proposed OUPFC model and the developed constraints handling methods are implemented on IEEE 14-bus, IEEE 30-bus, IEEE 57-bus and IEEE 118-bus test systems. The simulation results verified the feasibilityand robustness of the presented model into load flow analysis. in addition, effectiveness of the proposed approaches forhandling the operating constraints of OUPFC.
Highlights
The Optimal Unified Power Flow Controller (OUPFC) is an efficient series-shunt controller that is incorporated to system to control the power flow through the transmission lines. Modeling of such controller is a challenge task due the required complex modifications of the Newton Raphson power (NR) flow to consider the parameters of the OUPFC
The Flexible Alternating Current Transmission System (FACTS) has become the head of concern of the modern powers where the FACTS can change the parameters of the power system such as the transmission line impedance, the magnitude and the phase angle of the buses voltage and the power flow in the network
This paper presented a novel model of the OUPFC device into the Newton Raphson power flow solution
Summary
The Flexible Alternating Current Transmission System (FACTS) has become the head of concern of the modern powers where the FACTS can change the parameters of the power system such as the transmission line impedance, the magnitude and the phase angle of the buses voltage and the power flow in the network. The load injection model was presented in [7] In this model the controller is represented as injected active and reactive powers at its terminal buses which are driven from the voltage source representation of the controller. S. Kamel et al presented an efficient model for Center-node Unified Power Flow Controller into power flow analysis with enforcement its operating constraints including the injected series and shunt voltages, the series and shunt currents passing through the VSCs of the controller and the exchanged power in this controller[19]. In [20], a power injection model of the SSSC with Multi-control Functional has been presented with handling the violations of operating constraints including the series injected voltage of the SSSC and the passing current through this controller. The comprehensive model determined the optimal rating and location of the OUPFC using the cuckoo search algorithm for the power losses reduction and enhancing the system security
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
