bala subbareddy

The electric power from the system should be reliable and economical for consumer’s equipment satisfaction. An electric power system consists of many generators, transformers, transmission lines, loads, etc. For the power system network, dynamic performance and stability are important. The system is lost its stability by some disturbances i.e., load variations, generator failure, prime mover failure, transmission line outage, etc. Whenever load variations in the system, generator rotor speed will vary, means oscillations in the rotor speed, which is deviating from rated speed. The excitation system will control the generator rated line voltage. When fault occurs at any equipment in the system, the system will unstable. If fault occurs at generator, the generator oscillates. To reduce the oscillations and to make the system stable used power system stabilizers (PSS’s). Here, three types of PSS’s are used i.e., PSS1B, PSS2B, PSS4B. Comparisons of three PSS’s are on the multi machine s...

A power quality disturbance is defined as a nonstandard voltage, current or frequency that results in a damage of end user equipments. Utility distribution networks, sensitive industrial loads and critical commercial operations suffer from various types of outages and service interruptions which can cost significant fin ancial losses. The functioning of the wind turbine and there by power quality are measured on the basis and the norms followed according to the guideline specified in International Electrotechnical Commission standard, IEC-614000. The influence of the wind turbine in the grid system concerning the power quality measurements are the active power, variation of voltage, flicker, harmonics, and electrical behavior of switching operation and these are measured according to national/international guidelines. The development of power electronics devices such as Flexible AC Transmission Systems(FACTS) and Customs power devices are emerging branch of technology providing the ...

This paper shows the investigation of bidirectional DC to DC converter and contrasting and the different existing strategy methods. The proposed converter is planned in the way of shut circle control. By utilizing a controller, we can acquire a high yield voltage and high pick up by controlling the obligation cycle of switches. The DC/DC converter is built by a buck-support circuit, which is worked as a buck circuit while charging and a help circuit while releasing. So we can utilize numerous force related frameworks, which enhances proficiency, lower misfortunes and higher execution

Optimal power flow (OPF) solutions with generalized interline power flow controller (GIPFC) devices play an imperative role in enhancing the power system’s performance. This paper used a novel ant lion optimization (ALO) algorithm which is amalgamated with Lévy flight operator, and an effectual algorithm is proposed named as, ameliorated ant lion optimization (AALO) algorithm. It is being implemented to solve single objective OPF problem with the latest flexible alternating current transmission system (FACTS) controller named as GIPFC. GIPFC can control a couple of transmission lines concurrently and it also helps to control the sending end voltage. In this paper, current injection modeling of GIPFC is being incorporated in conventional Newton-Raphson (NR) load flow to improve voltage of the buses and focuses on minimizing the considered objectives such as generation fuel cost, emissions, and total power losses by fulfilling equality, in-equality. For optimal allocation of GIPFC, a ...