Contingency analysis has been considered as critical issue in power systems because it initiates failures transmission line and failure equipment. Hence, this paper is presented Red Deer Algorithm (RDA) to manage contingency condition for improving security of the system. The proposed algorithm utilized solve Optimal Power flow (OPF) with multi-objective functions. function consisting six singl...

The loss minimization is a major role in Power System (PS) research. Transmission line losses in a PS can be reduced by Var compensation. After the establishment of power markets with transmission open access, the significance and use of Flexible AC Transmission Systems (FACTS) devices for manipulating line power flows to relieve congestion and maximize the overall grid operation have been incr...

This paper gives a brief review of fast and flexible control of power flow in transmission lines. Special emphasis is on SVC, TCSC and UPFC looking towards their benefits for improving the operation of an electrical power system. Performance comparison of these FACTS controllers has been discussed. In addition, some of the utility experience have been reviewed and summarized. Applications of FA...

The introduction of the flexible AC transmission system (FACTS) in the power system reduces the losses, reduces the cost of the generation, improves the stability and also improves the load capability of the system. Some application of the Flexible AC transmission system (FACTS) technologies to existing high voltage power system has proves the use of FACTS technology may be a cost effective opt...

Abstract In this paper, a novel hybrid technique is proposed for transient stability analysis on grid connected Wind-Diesel-PV system. The methodology combination of the dwarf mongoose optimization algorithm (DMO) and recalling enhanced recurrent neural network (RERNN) named DMO-RERNN. main purpose work to consider various elements system according different conditions. voltage profile using un...

Minimization of line losses and the improvement of power quality in distribution system are the most challenging problems, particularly when it is not economic to upgrade the entire feeder systems. This paper presents a new method to achieve the line loss minimum condition and improve power quality in radial and loop distribution system by using Unified Power Flow Controllers (UPFC), one of the...

A unified power flow controller (UPFC) based on the flying capacitor (FC) multilevel voltage-source converter (VSC) topology with phase-shifted sinusoidal pulse-width modulation (PWM) control is presented. This converter allows higher power handling, potentially lower power loss, lower harmonic distortion and hence less filtering requirements when compared with the typical two-level counterppar...

This paper proposes a new control approach for a unified power flow controller (UPFC) for power system oscillation damping. This control is simple to implement, yet is valid over a wide range of operating conditions. It is also effective in the presence of multiple modes of oscillation. The proposed control is implemented in several test systems and is compared against a traditional PI control.

In this paper we proposed an advanced Multi-level converters with ride through capability for unified power-flow controller (UPFC) applications, because of high power ratings Among all multilevel topologies, the three-level neutral-pointclamped (NPC) converter allows back-to-back connection as the UPFC shunt and series converters gives us better results. Besides the pulse widthmodulated (PWM) m...

The Unified Power Flow Controller (UPFC) can provide simultaneous control of all basic power system paramaters (transmission voltage, impedance and phase angle). The controller can fulfill functions of reactive shunt Compensation, series compensation and phase shifting, meeting multiple control objectives. From a functional perspective, the objectives are met by appliying a cross coupling contr...