Power Research

M. Balasubbareddy ¹, P. V. Prasad ², A. Bhanu Chandar ³

Affiliations
1 Associate Professor, EEE department, Chaitanya Bharathi Institute of Technology, Hydrabad - 500075, IN
2 Professor & HOD, EEE department, Chaitanya Bharathi Institute of Technology, Hydrabad -500075, IN
3 Assistant. Professor, EEE department, Chaitanya Bharathi Institute of Technology, Hydrabad -500075, IN

Abstract

This paper proposed a novel load flow technique using Newton-Raphson (NR) polar form method with hybrid bus. In the former literature bus admittance matrix, YBus , is used for the computation of the load flow problems, that will take more number of iterations to converge the problem. To overcome this drawback, in this paper a novel NR polar form method using hybrid bus,HBus is proposed. The NR polar form load flow equations using HBus are derived. Standard IEEE test system and Indian utility systems are used to demonstrate the performance of the proposed approach. The results for NR power flow problem are physically interpreted on the IEEE-30 bus, 103 and 140 Indian utility bus systems with supporting numerical and graphical results and also validated against existing methods. The results using proposed approach show their superiority over existing approaches.

Keywords

Load flow solution; bus hybrid matrix; Newton-Raphson method; power system

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S. R. Reddy ¹, P. V. Prasad ², G. N. Srinivas ³

Affiliations
1 Department of EEE, GNITC, Ibrahimpatnam Hyderabad – 501506, Telangana, IN
2 Department of EEE, CBIT, Gandipet, Hyderabad – 500075, Telangana, IN
3 Department of EEE, JNTU, Hyderabad – 500085, Telangana, IN

Abstract

The paper presents the compensation of harmonic, reactive power, dc voltage regulation and power factor improvement under nonlinear load condition is achieved by using Distribution Static Compensator (D-STATCOM). The synchronous reference frame control algorithm is developed for generating switching reference control signals. The dc link voltage is regulating with PI and PSO-PI controller. The attain control algorithm reference switching signals compared in hysteresis signal for better switching of D-STATCOM. The behaviour of DSTATCOM with PI and PSO-PI controller is also study and measure in terms of for DC link voltage, harmonic distortion, power factor correction and reactive power mitigation by using MATLAB/SIMULINK software.

Keywords

DSTATCOM, Harmonic Compensation, Non llinear Load, PI Controller, PSO-PI Controller, Power Factor Synchronous Reference Frame Theory, Reactive Power.

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